git.oblomov.eu Git - wine/blob - dlls/crypt32/cert.c

   1 /*
   2  * Copyright 2004-2006 Juan Lang
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  *
  18  */
  19
  20 #include <assert.h>
  21 #include <stdarg.h>
  22
  23 #define NONAMELESSUNION
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "wincrypt.h"
  27 #include "winnls.h"
  28 #include "rpc.h"
  29 #include "wine/debug.h"
  30 #include "crypt32_private.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(crypt);
  33
  34 /* Internal version of CertGetCertificateContextProperty that gets properties
  35  * directly from the context (or the context it's linked to, depending on its
  36  * type.) Doesn't handle special-case properties, since they are handled by
  37  * CertGetCertificateContextProperty, and are particular to the store in which
  38  * the property exists (which is separate from the context.)
  39  */
  40 static BOOL WINAPI CertContext_GetProperty(void *context, DWORD dwPropId,
  41  void *pvData, DWORD *pcbData);
  42
  43 /* Internal version of CertSetCertificateContextProperty that sets properties
  44  * directly on the context (or the context it's linked to, depending on its
  45  * type.) Doesn't handle special cases, since they're handled by
  46  * CertSetCertificateContextProperty anyway.
  47  */
  48 static BOOL WINAPI CertContext_SetProperty(void *context, DWORD dwPropId,
  49  DWORD dwFlags, const void *pvData);
  50
  51 BOOL WINAPI CertAddEncodedCertificateToStore(HCERTSTORE hCertStore,
  52  DWORD dwCertEncodingType, const BYTE *pbCertEncoded, DWORD cbCertEncoded,
  53  DWORD dwAddDisposition, PCCERT_CONTEXT *ppCertContext)
  54 {
  55     PCCERT_CONTEXT cert = CertCreateCertificateContext(dwCertEncodingType,
  56      pbCertEncoded, cbCertEncoded);
  57     BOOL ret;
  58
  59     TRACE("(%p, %08x, %p, %d, %08x, %p)\n", hCertStore, dwCertEncodingType,
  60      pbCertEncoded, cbCertEncoded, dwAddDisposition, ppCertContext);
  61
  62     if (cert)
  63     {
  64         ret = CertAddCertificateContextToStore(hCertStore, cert,
  65          dwAddDisposition, ppCertContext);
  66         CertFreeCertificateContext(cert);
  67     }
  68     else
  69         ret = FALSE;
  70     return ret;
  71 }
  72
  73 PCCERT_CONTEXT WINAPI CertCreateCertificateContext(DWORD dwCertEncodingType,
  74  const BYTE *pbCertEncoded, DWORD cbCertEncoded)
  75 {
  76     PCERT_CONTEXT cert = NULL;
  77     BOOL ret;
  78     PCERT_INFO certInfo = NULL;
  79     DWORD size = 0;
  80
  81     TRACE("(%08x, %p, %d)\n", dwCertEncodingType, pbCertEncoded,
  82      cbCertEncoded);
  83
  84     ret = CryptDecodeObjectEx(dwCertEncodingType, X509_CERT_TO_BE_SIGNED,
  85      pbCertEncoded, cbCertEncoded, CRYPT_DECODE_ALLOC_FLAG, NULL,
  86      (BYTE *)&certInfo, &size);
  87     if (ret)
  88     {
  89         BYTE *data = NULL;
  90
  91         cert = (PCERT_CONTEXT)Context_CreateDataContext(sizeof(CERT_CONTEXT));
  92         if (!cert)
  93             goto end;
  94         data = CryptMemAlloc(cbCertEncoded);
  95         if (!data)
  96         {
  97             CryptMemFree(cert);
  98             cert = NULL;
  99             goto end;
 100         }
 101         memcpy(data, pbCertEncoded, cbCertEncoded);
 102         cert->dwCertEncodingType = dwCertEncodingType;
 103         cert->pbCertEncoded      = data;
 104         cert->cbCertEncoded      = cbCertEncoded;
 105         cert->pCertInfo          = certInfo;
 106         cert->hCertStore         = 0;
 107     }
 108
 109 end:
 110     return (PCCERT_CONTEXT)cert;
 111 }
 112
 113 PCCERT_CONTEXT WINAPI CertDuplicateCertificateContext(
 114  PCCERT_CONTEXT pCertContext)
 115 {
 116     TRACE("(%p)\n", pCertContext);
 117     Context_AddRef((void *)pCertContext, sizeof(CERT_CONTEXT));
 118     return pCertContext;
 119 }
 120
 121 static void CertDataContext_Free(void *context)
 122 {
 123     PCERT_CONTEXT certContext = (PCERT_CONTEXT)context;
 124
 125     CryptMemFree(certContext->pbCertEncoded);
 126     LocalFree(certContext->pCertInfo);
 127 }
 128
 129 BOOL WINAPI CertFreeCertificateContext(PCCERT_CONTEXT pCertContext)
 130 {
 131     TRACE("(%p)\n", pCertContext);
 132
 133     if (pCertContext)
 134         Context_Release((void *)pCertContext, sizeof(CERT_CONTEXT),
 135          CertDataContext_Free);
 136     return TRUE;
 137 }
 138
 139 DWORD WINAPI CertEnumCertificateContextProperties(PCCERT_CONTEXT pCertContext,
 140  DWORD dwPropId)
 141 {
 142     PCONTEXT_PROPERTY_LIST properties = Context_GetProperties(
 143      (void *)pCertContext, sizeof(CERT_CONTEXT));
 144     DWORD ret;
 145
 146     TRACE("(%p, %d)\n", pCertContext, dwPropId);
 147
 148     if (properties)
 149         ret = ContextPropertyList_EnumPropIDs(properties, dwPropId);
 150     else
 151         ret = 0;
 152     return ret;
 153 }
 154
 155 static BOOL CertContext_GetHashProp(void *context, DWORD dwPropId,
 156  ALG_ID algID, const BYTE *toHash, DWORD toHashLen, void *pvData,
 157  DWORD *pcbData)
 158 {
 159     BOOL ret = CryptHashCertificate(0, algID, 0, toHash, toHashLen, pvData,
 160      pcbData);
 161     if (ret && pvData)
 162     {
 163         CRYPT_DATA_BLOB blob = { *pcbData, pvData };
 164
 165         ret = CertContext_SetProperty(context, dwPropId, 0, &blob);
 166     }
 167     return ret;
 168 }
 169
 170 static BOOL CertContext_CopyParam(void *pvData, DWORD *pcbData, const void *pb,
 171  DWORD cb)
 172 {
 173     BOOL ret = TRUE;
 174
 175     if (!pvData)
 176         *pcbData = cb;
 177     else if (*pcbData < cb)
 178     {
 179         SetLastError(ERROR_MORE_DATA);
 180         *pcbData = cb;
 181         ret = FALSE;
 182     }
 183     else
 184     {
 185         memcpy(pvData, pb, cb);
 186         *pcbData = cb;
 187     }
 188     return ret;
 189 }
 190
 191 static BOOL WINAPI CertContext_GetProperty(void *context, DWORD dwPropId,
 192  void *pvData, DWORD *pcbData)
 193 {
 194     PCCERT_CONTEXT pCertContext = (PCCERT_CONTEXT)context;
 195     PCONTEXT_PROPERTY_LIST properties =
 196      Context_GetProperties(context, sizeof(CERT_CONTEXT));
 197     BOOL ret;
 198     CRYPT_DATA_BLOB blob;
 199
 200     TRACE("(%p, %d, %p, %p)\n", context, dwPropId, pvData, pcbData);
 201
 202     if (properties)
 203         ret = ContextPropertyList_FindProperty(properties, dwPropId, &blob);
 204     else
 205         ret = FALSE;
 206     if (ret)
 207         ret = CertContext_CopyParam(pvData, pcbData, blob.pbData, blob.cbData);
 208     else
 209     {
 210         /* Implicit properties */
 211         switch (dwPropId)
 212         {
 213         case CERT_SHA1_HASH_PROP_ID:
 214             ret = CertContext_GetHashProp(context, dwPropId, CALG_SHA1,
 215              pCertContext->pbCertEncoded, pCertContext->cbCertEncoded, pvData,
 216              pcbData);
 217             break;
 218         case CERT_MD5_HASH_PROP_ID:
 219             ret = CertContext_GetHashProp(context, dwPropId, CALG_MD5,
 220              pCertContext->pbCertEncoded, pCertContext->cbCertEncoded, pvData,
 221              pcbData);
 222             break;
 223         case CERT_SUBJECT_NAME_MD5_HASH_PROP_ID:
 224             ret = CertContext_GetHashProp(context, dwPropId, CALG_MD5,
 225              pCertContext->pCertInfo->Subject.pbData,
 226              pCertContext->pCertInfo->Subject.cbData,
 227              pvData, pcbData);
 228             break;
 229         case CERT_SUBJECT_PUBLIC_KEY_MD5_HASH_PROP_ID:
 230             ret = CertContext_GetHashProp(context, dwPropId, CALG_MD5,
 231              pCertContext->pCertInfo->SubjectPublicKeyInfo.PublicKey.pbData,
 232              pCertContext->pCertInfo->SubjectPublicKeyInfo.PublicKey.cbData,
 233              pvData, pcbData);
 234             break;
 235         case CERT_ISSUER_SERIAL_NUMBER_MD5_HASH_PROP_ID:
 236             ret = CertContext_GetHashProp(context, dwPropId, CALG_MD5,
 237              pCertContext->pCertInfo->SerialNumber.pbData,
 238              pCertContext->pCertInfo->SerialNumber.cbData,
 239              pvData, pcbData);
 240             break;
 241         case CERT_SIGNATURE_HASH_PROP_ID:
 242             FIXME("CERT_SIGNATURE_HASH_PROP_ID unimplemented\n");
 243             SetLastError(CRYPT_E_NOT_FOUND);
 244             break;
 245         case CERT_KEY_IDENTIFIER_PROP_ID:
 246         {
 247             PCERT_EXTENSION ext = CertFindExtension(
 248              szOID_SUBJECT_KEY_IDENTIFIER, pCertContext->pCertInfo->cExtension,
 249              pCertContext->pCertInfo->rgExtension);
 250
 251             if (ext)
 252             {
 253                 CRYPT_DATA_BLOB value;
 254                 DWORD size;
 255
 256                 ret = CryptDecodeObjectEx(X509_ASN_ENCODING,
 257                  szOID_SUBJECT_KEY_IDENTIFIER, ext->Value.pbData,
 258                  ext->Value.cbData, CRYPT_DECODE_NOCOPY_FLAG, NULL, &value,
 259                  &size);
 260                 if (ret)
 261                 {
 262                     ret = CertContext_CopyParam(pvData, pcbData, value.pbData,
 263                      value.cbData);
 264                     CertContext_SetProperty(context, dwPropId, 0, &value);
 265                 }
 266             }
 267             else
 268                 SetLastError(ERROR_INVALID_DATA);
 269             break;
 270         }
 271         default:
 272             SetLastError(CRYPT_E_NOT_FOUND);
 273         }
 274     }
 275     TRACE("returning %d\n", ret);
 276     return ret;
 277 }
 278
 279 void CRYPT_FixKeyProvInfoPointers(PCRYPT_KEY_PROV_INFO info)
 280 {
 281     DWORD i, containerLen, provNameLen;
 282     LPBYTE data = (LPBYTE)info + sizeof(CRYPT_KEY_PROV_INFO);
 283
 284     info->pwszContainerName = (LPWSTR)data;
 285     containerLen = (lstrlenW(info->pwszContainerName) + 1) * sizeof(WCHAR);
 286     data += containerLen;
 287
 288     info->pwszProvName = (LPWSTR)data;
 289     provNameLen = (lstrlenW(info->pwszProvName) + 1) * sizeof(WCHAR);
 290     data += provNameLen;
 291
 292     info->rgProvParam = (PCRYPT_KEY_PROV_PARAM)data;
 293     data += info->cProvParam * sizeof(CRYPT_KEY_PROV_PARAM);
 294
 295     for (i = 0; i < info->cProvParam; i++)
 296     {
 297         info->rgProvParam[i].pbData = data;
 298         data += info->rgProvParam[i].cbData;
 299     }
 300 }
 301
 302 BOOL WINAPI CertGetCertificateContextProperty(PCCERT_CONTEXT pCertContext,
 303  DWORD dwPropId, void *pvData, DWORD *pcbData)
 304 {
 305     BOOL ret;
 306
 307     TRACE("(%p, %d, %p, %p)\n", pCertContext, dwPropId, pvData, pcbData);
 308
 309     switch (dwPropId)
 310     {
 311     case 0:
 312     case CERT_CERT_PROP_ID:
 313     case CERT_CRL_PROP_ID:
 314     case CERT_CTL_PROP_ID:
 315         SetLastError(E_INVALIDARG);
 316         ret = FALSE;
 317         break;
 318     case CERT_ACCESS_STATE_PROP_ID:
 319         if (pCertContext->hCertStore)
 320             ret = CertGetStoreProperty(pCertContext->hCertStore, dwPropId,
 321              pvData, pcbData);
 322         else
 323         {
 324             DWORD state = 0;
 325
 326             ret = CertContext_CopyParam(pvData, pcbData, &state, sizeof(state));
 327         }
 328         break;
 329     case CERT_KEY_PROV_HANDLE_PROP_ID:
 330     {
 331         CERT_KEY_CONTEXT keyContext;
 332         DWORD size = sizeof(keyContext);
 333
 334         ret = CertContext_GetProperty((void *)pCertContext,
 335          CERT_KEY_CONTEXT_PROP_ID, &keyContext, &size);
 336         if (ret)
 337             ret = CertContext_CopyParam(pvData, pcbData, &keyContext.hCryptProv,
 338              sizeof(keyContext.hCryptProv));
 339         break;
 340     }
 341     case CERT_KEY_PROV_INFO_PROP_ID:
 342         ret = CertContext_GetProperty((void *)pCertContext, dwPropId, pvData,
 343          pcbData);
 344         if (ret && pvData)
 345             CRYPT_FixKeyProvInfoPointers((PCRYPT_KEY_PROV_INFO)pvData);
 346         break;
 347     default:
 348         ret = CertContext_GetProperty((void *)pCertContext, dwPropId, pvData,
 349          pcbData);
 350     }
 351
 352     TRACE("returning %d\n", ret);
 353     return ret;
 354 }
 355
 356 /* Copies key provider info from from into to, where to is assumed to be a
 357  * contiguous buffer of memory large enough for from and all its associated
 358  * data, but whose pointers are uninitialized.
 359  * Upon return, to contains a contiguous copy of from, packed in the following
 360  * order:
 361  * - CRYPT_KEY_PROV_INFO
 362  * - pwszContainerName
 363  * - pwszProvName
 364  * - rgProvParam[0]...
 365  */
 366 static void CRYPT_CopyKeyProvInfo(PCRYPT_KEY_PROV_INFO to,
 367  const CRYPT_KEY_PROV_INFO *from)
 368 {
 369     DWORD i;
 370     LPBYTE nextData = (LPBYTE)to + sizeof(CRYPT_KEY_PROV_INFO);
 371
 372     if (from->pwszContainerName)
 373     {
 374         to->pwszContainerName = (LPWSTR)nextData;
 375         lstrcpyW(to->pwszContainerName, from->pwszContainerName);
 376         nextData += (lstrlenW(from->pwszContainerName) + 1) * sizeof(WCHAR);
 377     }
 378     else
 379         to->pwszContainerName = NULL;
 380     if (from->pwszProvName)
 381     {
 382         to->pwszProvName = (LPWSTR)nextData;
 383         lstrcpyW(to->pwszProvName, from->pwszProvName);
 384         nextData += (lstrlenW(from->pwszProvName) + 1) * sizeof(WCHAR);
 385     }
 386     else
 387         to->pwszProvName = NULL;
 388     to->dwProvType = from->dwProvType;
 389     to->dwFlags = from->dwFlags;
 390     to->cProvParam = from->cProvParam;
 391     to->rgProvParam = (PCRYPT_KEY_PROV_PARAM)nextData;
 392     nextData += to->cProvParam * sizeof(CRYPT_KEY_PROV_PARAM);
 393     to->dwKeySpec = from->dwKeySpec;
 394     for (i = 0; i < to->cProvParam; i++)
 395     {
 396         memcpy(&to->rgProvParam[i], &from->rgProvParam[i],
 397          sizeof(CRYPT_KEY_PROV_PARAM));
 398         to->rgProvParam[i].pbData = nextData;
 399         memcpy(to->rgProvParam[i].pbData, from->rgProvParam[i].pbData,
 400          from->rgProvParam[i].cbData);
 401         nextData += from->rgProvParam[i].cbData;
 402     }
 403 }
 404
 405 static BOOL CertContext_SetKeyProvInfoProperty(PCONTEXT_PROPERTY_LIST properties,
 406  const CRYPT_KEY_PROV_INFO *info)
 407 {
 408     BOOL ret;
 409     LPBYTE buf = NULL;
 410     DWORD size = sizeof(CRYPT_KEY_PROV_INFO), i, containerSize, provNameSize;
 411
 412     if (info->pwszContainerName)
 413         containerSize = (lstrlenW(info->pwszContainerName) + 1) * sizeof(WCHAR);
 414     else
 415         containerSize = 0;
 416     if (info->pwszProvName)
 417         provNameSize = (lstrlenW(info->pwszProvName) + 1) * sizeof(WCHAR);
 418     else
 419         provNameSize = 0;
 420     size += containerSize + provNameSize;
 421     for (i = 0; i < info->cProvParam; i++)
 422         size += sizeof(CRYPT_KEY_PROV_PARAM) + info->rgProvParam[i].cbData;
 423     buf = CryptMemAlloc(size);
 424     if (buf)
 425     {
 426         CRYPT_CopyKeyProvInfo((PCRYPT_KEY_PROV_INFO)buf, info);
 427         ret = ContextPropertyList_SetProperty(properties,
 428          CERT_KEY_PROV_INFO_PROP_ID, buf, size);
 429         CryptMemFree(buf);
 430     }
 431     else
 432         ret = FALSE;
 433     return ret;
 434 }
 435
 436 static BOOL WINAPI CertContext_SetProperty(void *context, DWORD dwPropId,
 437  DWORD dwFlags, const void *pvData)
 438 {
 439     PCONTEXT_PROPERTY_LIST properties =
 440      Context_GetProperties(context, sizeof(CERT_CONTEXT));
 441     BOOL ret;
 442
 443     TRACE("(%p, %d, %08x, %p)\n", context, dwPropId, dwFlags, pvData);
 444
 445     if (!properties)
 446         ret = FALSE;
 447     else
 448     {
 449         switch (dwPropId)
 450         {
 451         case CERT_AUTO_ENROLL_PROP_ID:
 452         case CERT_CTL_USAGE_PROP_ID: /* same as CERT_ENHKEY_USAGE_PROP_ID */
 453         case CERT_DESCRIPTION_PROP_ID:
 454         case CERT_FRIENDLY_NAME_PROP_ID:
 455         case CERT_HASH_PROP_ID:
 456         case CERT_KEY_IDENTIFIER_PROP_ID:
 457         case CERT_MD5_HASH_PROP_ID:
 458         case CERT_NEXT_UPDATE_LOCATION_PROP_ID:
 459         case CERT_PUBKEY_ALG_PARA_PROP_ID:
 460         case CERT_PVK_FILE_PROP_ID:
 461         case CERT_SIGNATURE_HASH_PROP_ID:
 462         case CERT_ISSUER_PUBLIC_KEY_MD5_HASH_PROP_ID:
 463         case CERT_SUBJECT_NAME_MD5_HASH_PROP_ID:
 464         case CERT_SUBJECT_PUBLIC_KEY_MD5_HASH_PROP_ID:
 465         case CERT_ENROLLMENT_PROP_ID:
 466         case CERT_CROSS_CERT_DIST_POINTS_PROP_ID:
 467         case CERT_RENEWAL_PROP_ID:
 468         {
 469             if (pvData)
 470             {
 471                 const CRYPT_DATA_BLOB *blob = (const CRYPT_DATA_BLOB *)pvData;
 472
 473                 ret = ContextPropertyList_SetProperty(properties, dwPropId,
 474                  blob->pbData, blob->cbData);
 475             }
 476             else
 477             {
 478                 ContextPropertyList_RemoveProperty(properties, dwPropId);
 479                 ret = TRUE;
 480             }
 481             break;
 482         }
 483         case CERT_DATE_STAMP_PROP_ID:
 484             if (pvData)
 485                 ret = ContextPropertyList_SetProperty(properties, dwPropId,
 486                  (const BYTE *)pvData, sizeof(FILETIME));
 487             else
 488             {
 489                 ContextPropertyList_RemoveProperty(properties, dwPropId);
 490                 ret = TRUE;
 491             }
 492             break;
 493         case CERT_KEY_CONTEXT_PROP_ID:
 494         {
 495             if (pvData)
 496             {
 497                 const CERT_KEY_CONTEXT *keyContext = (const CERT_KEY_CONTEXT *)pvData;
 498
 499                 if (keyContext->cbSize != sizeof(CERT_KEY_CONTEXT))
 500                 {
 501                     SetLastError(E_INVALIDARG);
 502                     ret = FALSE;
 503                 }
 504                 else
 505                     ret = ContextPropertyList_SetProperty(properties, dwPropId,
 506                      (const BYTE *)keyContext, keyContext->cbSize);
 507             }
 508             else
 509             {
 510                 ContextPropertyList_RemoveProperty(properties, dwPropId);
 511                 ret = TRUE;
 512             }
 513             break;
 514         }
 515         case CERT_KEY_PROV_INFO_PROP_ID:
 516             if (pvData)
 517                 ret = CertContext_SetKeyProvInfoProperty(properties,
 518                  (const CRYPT_KEY_PROV_INFO *)pvData);
 519             else
 520             {
 521                 ContextPropertyList_RemoveProperty(properties, dwPropId);
 522                 ret = TRUE;
 523             }
 524             break;
 525         case CERT_KEY_PROV_HANDLE_PROP_ID:
 526         {
 527             CERT_KEY_CONTEXT keyContext;
 528             DWORD size = sizeof(keyContext);
 529
 530             ret = CertContext_GetProperty(context, CERT_KEY_CONTEXT_PROP_ID,
 531              &keyContext, &size);
 532             if (ret)
 533             {
 534                 if (!(dwFlags & CERT_STORE_NO_CRYPT_RELEASE_FLAG))
 535                     CryptReleaseContext(keyContext.hCryptProv, 0);
 536                 if (pvData)
 537                     keyContext.hCryptProv = *(const HCRYPTPROV *)pvData;
 538                 else
 539                     keyContext.hCryptProv = 0;
 540                 ret = CertContext_SetProperty(context, CERT_KEY_CONTEXT_PROP_ID,
 541                  0, &keyContext);
 542             }
 543             break;
 544         }
 545         default:
 546             FIXME("%d: stub\n", dwPropId);
 547             ret = FALSE;
 548         }
 549     }
 550     TRACE("returning %d\n", ret);
 551     return ret;
 552 }
 553
 554 BOOL WINAPI CertSetCertificateContextProperty(PCCERT_CONTEXT pCertContext,
 555  DWORD dwPropId, DWORD dwFlags, const void *pvData)
 556 {
 557     BOOL ret;
 558
 559     TRACE("(%p, %d, %08x, %p)\n", pCertContext, dwPropId, dwFlags, pvData);
 560
 561     /* Handle special cases for "read-only"/invalid prop IDs.  Windows just
 562      * crashes on most of these, I'll be safer.
 563      */
 564     switch (dwPropId)
 565     {
 566     case 0:
 567     case CERT_ACCESS_STATE_PROP_ID:
 568     case CERT_CERT_PROP_ID:
 569     case CERT_CRL_PROP_ID:
 570     case CERT_CTL_PROP_ID:
 571         SetLastError(E_INVALIDARG);
 572         return FALSE;
 573     }
 574     ret = CertContext_SetProperty((void *)pCertContext, dwPropId, dwFlags,
 575      pvData);
 576     TRACE("returning %d\n", ret);
 577     return ret;
 578 }
 579
 580 /* Acquires the private key using the key provider info, retrieving info from
 581  * the certificate if info is NULL.  The acquired provider is returned in
 582  * *phCryptProv, and the key spec for the provider is returned in *pdwKeySpec.
 583  */
 584 static BOOL CRYPT_AcquirePrivateKeyFromProvInfo(PCCERT_CONTEXT pCert,
 585  PCRYPT_KEY_PROV_INFO info, HCRYPTPROV *phCryptProv, DWORD *pdwKeySpec)
 586 {
 587     DWORD size = 0;
 588     BOOL allocated = FALSE, ret = TRUE;
 589
 590     if (!info)
 591     {
 592         ret = CertGetCertificateContextProperty(pCert,
 593          CERT_KEY_PROV_INFO_PROP_ID, 0, &size);
 594         if (ret)
 595         {
 596             info = (PCRYPT_KEY_PROV_INFO)HeapAlloc(GetProcessHeap(), 0, size);
 597             if (info)
 598             {
 599                 ret = CertGetCertificateContextProperty(pCert,
 600                  CERT_KEY_PROV_INFO_PROP_ID, info, &size);
 601                 allocated = TRUE;
 602             }
 603         }
 604         else
 605             SetLastError(CRYPT_E_NO_KEY_PROPERTY);
 606     }
 607     if (ret)
 608     {
 609         ret = CryptAcquireContextW(phCryptProv, info->pwszContainerName,
 610          info->pwszProvName, info->dwProvType, 0);
 611         if (ret)
 612         {
 613             DWORD i;
 614
 615             for (i = 0; i < info->cProvParam; i++)
 616             {
 617                 CryptSetProvParam(*phCryptProv,
 618                  info->rgProvParam[i].dwParam, info->rgProvParam[i].pbData,
 619                  info->rgProvParam[i].dwFlags);
 620             }
 621             *pdwKeySpec = info->dwKeySpec;
 622         }
 623         else
 624             SetLastError(CRYPT_E_NO_KEY_PROPERTY);
 625     }
 626     if (allocated)
 627         HeapFree(GetProcessHeap(), 0, info);
 628     return ret;
 629 }
 630
 631 BOOL WINAPI CryptAcquireCertificatePrivateKey(PCCERT_CONTEXT pCert,
 632  DWORD dwFlags, void *pvReserved, HCRYPTPROV_OR_NCRYPT_KEY_HANDLE *phCryptProv,
 633  DWORD *pdwKeySpec, BOOL *pfCallerFreeProv)
 634 {
 635     BOOL ret = FALSE, cache = FALSE;
 636     PCRYPT_KEY_PROV_INFO info = NULL;
 637     CERT_KEY_CONTEXT keyContext;
 638     DWORD size;
 639
 640     TRACE("(%p, %08x, %p, %p, %p, %p)\n", pCert, dwFlags, pvReserved,
 641      phCryptProv, pdwKeySpec, pfCallerFreeProv);
 642
 643     if (dwFlags & CRYPT_ACQUIRE_USE_PROV_INFO_FLAG)
 644     {
 645         DWORD size = 0;
 646
 647         ret = CertGetCertificateContextProperty(pCert,
 648          CERT_KEY_PROV_INFO_PROP_ID, 0, &size);
 649         if (ret)
 650         {
 651             info = (PCRYPT_KEY_PROV_INFO)HeapAlloc(
 652              GetProcessHeap(), 0, size);
 653             ret = CertGetCertificateContextProperty(pCert,
 654              CERT_KEY_PROV_INFO_PROP_ID, info, &size);
 655             if (ret)
 656                 cache = info->dwFlags & CERT_SET_KEY_CONTEXT_PROP_ID;
 657         }
 658     }
 659     else if (dwFlags & CRYPT_ACQUIRE_CACHE_FLAG)
 660         cache = TRUE;
 661     *phCryptProv = 0;
 662     if (cache)
 663     {
 664         size = sizeof(keyContext);
 665         ret = CertGetCertificateContextProperty(pCert, CERT_KEY_CONTEXT_PROP_ID,
 666          &keyContext, &size);
 667         if (ret)
 668         {
 669             *phCryptProv = keyContext.hCryptProv;
 670             if (pdwKeySpec)
 671                 *pdwKeySpec = keyContext.dwKeySpec;
 672             if (pfCallerFreeProv)
 673                 *pfCallerFreeProv = !cache;
 674         }
 675     }
 676     if (!*phCryptProv)
 677     {
 678         ret = CRYPT_AcquirePrivateKeyFromProvInfo(pCert, info,
 679          &keyContext.hCryptProv, &keyContext.dwKeySpec);
 680         if (ret)
 681         {
 682             *phCryptProv = keyContext.hCryptProv;
 683             if (pdwKeySpec)
 684                 *pdwKeySpec = keyContext.dwKeySpec;
 685             if (cache)
 686             {
 687                 keyContext.cbSize = sizeof(keyContext);
 688                 if (CertSetCertificateContextProperty(pCert,
 689                  CERT_KEY_CONTEXT_PROP_ID, 0, &keyContext))
 690                 {
 691                     if (pfCallerFreeProv)
 692                         *pfCallerFreeProv = FALSE;
 693                 }
 694             }
 695             else
 696             {
 697                 if (pfCallerFreeProv)
 698                     *pfCallerFreeProv = TRUE;
 699             }
 700         }
 701     }
 702     HeapFree(GetProcessHeap(), 0, info);
 703     return ret;
 704 }
 705
 706 BOOL WINAPI CertCompareCertificate(DWORD dwCertEncodingType,
 707  PCERT_INFO pCertId1, PCERT_INFO pCertId2)
 708 {
 709     BOOL ret;
 710
 711     TRACE("(%08x, %p, %p)\n", dwCertEncodingType, pCertId1, pCertId2);
 712
 713     ret = CertCompareCertificateName(dwCertEncodingType, &pCertId1->Issuer,
 714      &pCertId2->Issuer) && CertCompareIntegerBlob(&pCertId1->SerialNumber,
 715      &pCertId2->SerialNumber);
 716     TRACE("returning %d\n", ret);
 717     return ret;
 718 }
 719
 720 BOOL WINAPI CertCompareCertificateName(DWORD dwCertEncodingType,
 721  PCERT_NAME_BLOB pCertName1, PCERT_NAME_BLOB pCertName2)
 722 {
 723     BOOL ret;
 724
 725     TRACE("(%08x, %p, %p)\n", dwCertEncodingType, pCertName1, pCertName2);
 726
 727     if (pCertName1->cbData == pCertName2->cbData)
 728     {
 729         if (pCertName1->cbData)
 730             ret = !memcmp(pCertName1->pbData, pCertName2->pbData,
 731              pCertName1->cbData);
 732         else
 733             ret = TRUE;
 734     }
 735     else
 736         ret = FALSE;
 737     TRACE("returning %d\n", ret);
 738     return ret;
 739 }
 740
 741 /* Returns the number of significant bytes in pInt, where a byte is
 742  * insignificant if it's a leading 0 for positive numbers or a leading 0xff
 743  * for negative numbers.  pInt is assumed to be little-endian.
 744  */
 745 static DWORD CRYPT_significantBytes(const CRYPT_INTEGER_BLOB *pInt)
 746 {
 747     DWORD ret = pInt->cbData;
 748
 749     while (ret > 1)
 750     {
 751         if (pInt->pbData[ret - 2] <= 0x7f && pInt->pbData[ret - 1] == 0)
 752             ret--;
 753         else if (pInt->pbData[ret - 2] >= 0x80 && pInt->pbData[ret - 1] == 0xff)
 754             ret--;
 755         else
 756             break;
 757     }
 758     return ret;
 759 }
 760
 761 BOOL WINAPI CertCompareIntegerBlob(PCRYPT_INTEGER_BLOB pInt1,
 762  PCRYPT_INTEGER_BLOB pInt2)
 763 {
 764     BOOL ret;
 765     DWORD cb1, cb2;
 766
 767     TRACE("(%p, %p)\n", pInt1, pInt2);
 768
 769     cb1 = CRYPT_significantBytes(pInt1);
 770     cb2 = CRYPT_significantBytes(pInt2);
 771     if (cb1 == cb2)
 772     {
 773         if (cb1)
 774             ret = !memcmp(pInt1->pbData, pInt2->pbData, cb1);
 775         else
 776             ret = TRUE;
 777     }
 778     else
 779         ret = FALSE;
 780     TRACE("returning %d\n", ret);
 781     return ret;
 782 }
 783
 784 BOOL WINAPI CertComparePublicKeyInfo(DWORD dwCertEncodingType,
 785  PCERT_PUBLIC_KEY_INFO pPublicKey1, PCERT_PUBLIC_KEY_INFO pPublicKey2)
 786 {
 787     BOOL ret;
 788
 789     TRACE("(%08x, %p, %p)\n", dwCertEncodingType, pPublicKey1, pPublicKey2);
 790
 791     if (pPublicKey1->PublicKey.cbData == pPublicKey2->PublicKey.cbData &&
 792      pPublicKey1->PublicKey.cUnusedBits == pPublicKey2->PublicKey.cUnusedBits)
 793     {
 794         if (pPublicKey2->PublicKey.cbData)
 795             ret = !memcmp(pPublicKey1->PublicKey.pbData,
 796              pPublicKey2->PublicKey.pbData, pPublicKey1->PublicKey.cbData);
 797         else
 798             ret = TRUE;
 799     }
 800     else
 801         ret = FALSE;
 802     return ret;
 803 }
 804
 805 DWORD WINAPI CertGetPublicKeyLength(DWORD dwCertEncodingType,
 806  PCERT_PUBLIC_KEY_INFO pPublicKey)
 807 {
 808     DWORD len = 0;
 809
 810     TRACE("(%08x, %p)\n", dwCertEncodingType, pPublicKey);
 811
 812     if (dwCertEncodingType != X509_ASN_ENCODING)
 813     {
 814         SetLastError(ERROR_FILE_NOT_FOUND);
 815         return 0;
 816     }
 817     if (pPublicKey->Algorithm.pszObjId &&
 818      !strcmp(pPublicKey->Algorithm.pszObjId, szOID_RSA_DH))
 819     {
 820         FIXME("unimplemented for DH public keys\n");
 821         SetLastError(CRYPT_E_ASN1_BADTAG);
 822     }
 823     else
 824     {
 825         DWORD size;
 826         PBYTE buf;
 827         BOOL ret = CryptDecodeObjectEx(dwCertEncodingType,
 828          RSA_CSP_PUBLICKEYBLOB, pPublicKey->PublicKey.pbData,
 829          pPublicKey->PublicKey.cbData, CRYPT_DECODE_ALLOC_FLAG, NULL, &buf,
 830          &size);
 831
 832         if (ret)
 833         {
 834             RSAPUBKEY *rsaPubKey = (RSAPUBKEY *)((LPBYTE)buf +
 835              sizeof(BLOBHEADER));
 836
 837             len = rsaPubKey->bitlen;
 838             LocalFree(buf);
 839         }
 840     }
 841     return len;
 842 }
 843
 844 typedef BOOL (*CertCompareFunc)(PCCERT_CONTEXT pCertContext, DWORD dwType,
 845  DWORD dwFlags, const void *pvPara);
 846
 847 static BOOL compare_cert_any(PCCERT_CONTEXT pCertContext, DWORD dwType,
 848  DWORD dwFlags, const void *pvPara)
 849 {
 850     return TRUE;
 851 }
 852
 853 static BOOL compare_cert_by_md5_hash(PCCERT_CONTEXT pCertContext, DWORD dwType,
 854  DWORD dwFlags, const void *pvPara)
 855 {
 856     BOOL ret;
 857     BYTE hash[16];
 858     DWORD size = sizeof(hash);
 859
 860     ret = CertGetCertificateContextProperty(pCertContext,
 861      CERT_MD5_HASH_PROP_ID, hash, &size);
 862     if (ret)
 863     {
 864         const CRYPT_HASH_BLOB *pHash = (const CRYPT_HASH_BLOB *)pvPara;
 865
 866         if (size == pHash->cbData)
 867             ret = !memcmp(pHash->pbData, hash, size);
 868         else
 869             ret = FALSE;
 870     }
 871     return ret;
 872 }
 873
 874 static BOOL compare_cert_by_sha1_hash(PCCERT_CONTEXT pCertContext, DWORD dwType,
 875  DWORD dwFlags, const void *pvPara)
 876 {
 877     BOOL ret;
 878     BYTE hash[20];
 879     DWORD size = sizeof(hash);
 880
 881     ret = CertGetCertificateContextProperty(pCertContext,
 882      CERT_SHA1_HASH_PROP_ID, hash, &size);
 883     if (ret)
 884     {
 885         const CRYPT_HASH_BLOB *pHash = (const CRYPT_HASH_BLOB *)pvPara;
 886
 887         if (size == pHash->cbData)
 888             ret = !memcmp(pHash->pbData, hash, size);
 889         else
 890             ret = FALSE;
 891     }
 892     return ret;
 893 }
 894
 895 static BOOL compare_cert_by_name(PCCERT_CONTEXT pCertContext, DWORD dwType,
 896  DWORD dwFlags, const void *pvPara)
 897 {
 898     CERT_NAME_BLOB *blob = (CERT_NAME_BLOB *)pvPara, *toCompare;
 899     BOOL ret;
 900
 901     if (dwType & CERT_INFO_SUBJECT_FLAG)
 902         toCompare = &pCertContext->pCertInfo->Subject;
 903     else
 904         toCompare = &pCertContext->pCertInfo->Issuer;
 905     ret = CertCompareCertificateName(pCertContext->dwCertEncodingType,
 906      toCompare, blob);
 907     return ret;
 908 }
 909
 910 static BOOL compare_cert_by_subject_cert(PCCERT_CONTEXT pCertContext,
 911  DWORD dwType, DWORD dwFlags, const void *pvPara)
 912 {
 913     CERT_INFO *pCertInfo = (CERT_INFO *)pvPara;
 914     BOOL ret;
 915
 916     /* Matching serial number and subject match.. */
 917     ret = CertCompareCertificateName(pCertContext->dwCertEncodingType,
 918      &pCertInfo->Issuer, &pCertContext->pCertInfo->Subject);
 919     if (ret)
 920         ret = CertCompareIntegerBlob(&pCertContext->pCertInfo->SerialNumber,
 921          &pCertInfo->SerialNumber);
 922     else
 923     {
 924         /* failing that, if the serial number and issuer match, we match */
 925         ret = CertCompareIntegerBlob(&pCertContext->pCertInfo->SerialNumber,
 926          &pCertInfo->SerialNumber);
 927         if (ret)
 928             ret = CertCompareCertificateName(pCertContext->dwCertEncodingType,
 929              &pCertInfo->Issuer, &pCertContext->pCertInfo->Issuer);
 930     }
 931     TRACE("returning %d\n", ret);
 932     return ret;
 933 }
 934
 935 static BOOL compare_cert_by_cert_id(PCCERT_CONTEXT pCertContext, DWORD dwType,
 936  DWORD dwFlags, const void *pvPara)
 937 {
 938     CERT_ID *id = (CERT_ID *)pvPara;
 939     BOOL ret;
 940
 941     switch (id->dwIdChoice)
 942     {
 943     case CERT_ID_ISSUER_SERIAL_NUMBER:
 944         ret = CertCompareCertificateName(pCertContext->dwCertEncodingType,
 945          &pCertContext->pCertInfo->Issuer, &id->u.IssuerSerialNumber.Issuer);
 946         if (ret)
 947             ret = CertCompareIntegerBlob(&pCertContext->pCertInfo->SerialNumber,
 948              &id->u.IssuerSerialNumber.SerialNumber);
 949         break;
 950     case CERT_ID_SHA1_HASH:
 951         ret = compare_cert_by_sha1_hash(pCertContext, dwType, dwFlags,
 952          &id->u.HashId);
 953         break;
 954     case CERT_ID_KEY_IDENTIFIER:
 955     {
 956         DWORD size = 0;
 957
 958         ret = CertGetCertificateContextProperty(pCertContext,
 959          CERT_KEY_IDENTIFIER_PROP_ID, NULL, &size);
 960         if (ret && size == id->u.KeyId.cbData)
 961         {
 962             LPBYTE buf = CryptMemAlloc(size);
 963
 964             if (buf)
 965             {
 966                 CertGetCertificateContextProperty(pCertContext,
 967                  CERT_KEY_IDENTIFIER_PROP_ID, buf, &size);
 968                 ret = !memcmp(buf, id->u.KeyId.pbData, size);
 969                 CryptMemFree(buf);
 970             }
 971         }
 972         else
 973             ret = FALSE;
 974         break;
 975     }
 976     default:
 977         ret = FALSE;
 978         break;
 979     }
 980     return ret;
 981 }
 982
 983 static BOOL compare_cert_by_issuer(PCCERT_CONTEXT pCertContext, DWORD dwType,
 984  DWORD dwFlags, const void *pvPara)
 985 {
 986     BOOL ret = FALSE;
 987     PCCERT_CONTEXT subject = (PCCERT_CONTEXT)pvPara;
 988     PCERT_EXTENSION ext;
 989     DWORD size;
 990
 991     if ((ext = CertFindExtension(szOID_AUTHORITY_KEY_IDENTIFIER,
 992      subject->pCertInfo->cExtension, subject->pCertInfo->rgExtension)))
 993     {
 994         CERT_AUTHORITY_KEY_ID_INFO *info;
 995
 996         ret = CryptDecodeObjectEx(subject->dwCertEncodingType,
 997          X509_AUTHORITY_KEY_ID, ext->Value.pbData, ext->Value.cbData,
 998          CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,
 999          &info, &size);
1000         if (ret)
1001         {
1002             CERT_ID id;
1003
1004             if (info->CertIssuer.cbData && info->CertSerialNumber.cbData)
1005             {
1006                 id.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
1007                 memcpy(&id.u.IssuerSerialNumber.Issuer, &info->CertIssuer,
1008                  sizeof(CERT_NAME_BLOB));
1009                 memcpy(&id.u.IssuerSerialNumber.SerialNumber,
1010                  &info->CertSerialNumber, sizeof(CRYPT_INTEGER_BLOB));
1011                 ret = compare_cert_by_cert_id(pCertContext, dwType, dwFlags,
1012                  &id);
1013             }
1014             else if (info->KeyId.cbData)
1015             {
1016                 id.dwIdChoice = CERT_ID_KEY_IDENTIFIER;
1017                 memcpy(&id.u.KeyId, &info->KeyId, sizeof(CRYPT_HASH_BLOB));
1018                 ret = compare_cert_by_cert_id(pCertContext, dwType, dwFlags,
1019                  &id);
1020             }
1021             else
1022                 ret = FALSE;
1023             LocalFree(info);
1024         }
1025     }
1026     else if ((ext = CertFindExtension(szOID_AUTHORITY_KEY_IDENTIFIER2,
1027      subject->pCertInfo->cExtension, subject->pCertInfo->rgExtension)))
1028     {
1029         CERT_AUTHORITY_KEY_ID2_INFO *info;
1030
1031         ret = CryptDecodeObjectEx(subject->dwCertEncodingType,
1032          X509_AUTHORITY_KEY_ID2, ext->Value.pbData, ext->Value.cbData,
1033          CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,
1034          &info, &size);
1035         if (ret)
1036         {
1037             CERT_ID id;
1038
1039             if (info->AuthorityCertIssuer.cAltEntry &&
1040              info->AuthorityCertSerialNumber.cbData)
1041             {
1042                 PCERT_ALT_NAME_ENTRY directoryName = NULL;
1043                 DWORD i;
1044
1045                 for (i = 0; !directoryName &&
1046                  i < info->AuthorityCertIssuer.cAltEntry; i++)
1047                     if (info->AuthorityCertIssuer.rgAltEntry[i].dwAltNameChoice
1048                      == CERT_ALT_NAME_DIRECTORY_NAME)
1049                         directoryName =
1050                          &info->AuthorityCertIssuer.rgAltEntry[i];
1051                 if (directoryName)
1052                 {
1053                     id.dwIdChoice = CERT_ID_ISSUER_SERIAL_NUMBER;
1054                     memcpy(&id.u.IssuerSerialNumber.Issuer,
1055                      &directoryName->u.DirectoryName, sizeof(CERT_NAME_BLOB));
1056                     memcpy(&id.u.IssuerSerialNumber.SerialNumber,
1057                      &info->AuthorityCertSerialNumber,
1058                      sizeof(CRYPT_INTEGER_BLOB));
1059                     ret = compare_cert_by_cert_id(pCertContext, dwType, dwFlags,
1060                      &id);
1061                 }
1062                 else
1063                 {
1064                     FIXME("no supported name type in authority key id2\n");
1065                     ret = FALSE;
1066                 }
1067             }
1068             else if (info->KeyId.cbData)
1069             {
1070                 id.dwIdChoice = CERT_ID_KEY_IDENTIFIER;
1071                 memcpy(&id.u.KeyId, &info->KeyId, sizeof(CRYPT_HASH_BLOB));
1072                 ret = compare_cert_by_cert_id(pCertContext, dwType, dwFlags,
1073                  &id);
1074             }
1075             else
1076                 ret = FALSE;
1077             LocalFree(info);
1078         }
1079     }
1080     else
1081        ret = compare_cert_by_name(pCertContext,
1082         CERT_COMPARE_NAME | CERT_COMPARE_SUBJECT_CERT, dwFlags,
1083         &subject->pCertInfo->Issuer);
1084     return ret;
1085 }
1086
1087 PCCERT_CONTEXT WINAPI CertFindCertificateInStore(HCERTSTORE hCertStore,
1088  DWORD dwCertEncodingType, DWORD dwFlags, DWORD dwType, const void *pvPara,
1089  PCCERT_CONTEXT pPrevCertContext)
1090 {
1091     PCCERT_CONTEXT ret;
1092     CertCompareFunc compare;
1093
1094     TRACE("(%p, %08x, %08x, %08x, %p, %p)\n", hCertStore, dwCertEncodingType,
1095          dwFlags, dwType, pvPara, pPrevCertContext);
1096
1097     switch (dwType >> CERT_COMPARE_SHIFT)
1098     {
1099     case CERT_COMPARE_ANY:
1100         compare = compare_cert_any;
1101         break;
1102     case CERT_COMPARE_MD5_HASH:
1103         compare = compare_cert_by_md5_hash;
1104         break;
1105     case CERT_COMPARE_SHA1_HASH:
1106         compare = compare_cert_by_sha1_hash;
1107         break;
1108     case CERT_COMPARE_NAME:
1109         compare = compare_cert_by_name;
1110         break;
1111     case CERT_COMPARE_SUBJECT_CERT:
1112         compare = compare_cert_by_subject_cert;
1113         break;
1114     case CERT_COMPARE_CERT_ID:
1115         compare = compare_cert_by_cert_id;
1116         break;
1117     case CERT_COMPARE_ISSUER_OF:
1118         compare = compare_cert_by_issuer;
1119         break;
1120     default:
1121         FIXME("find type %08x unimplemented\n", dwType);
1122         compare = NULL;
1123     }
1124
1125     if (compare)
1126     {
1127         BOOL matches = FALSE;
1128
1129         ret = pPrevCertContext;
1130         do {
1131             ret = CertEnumCertificatesInStore(hCertStore, ret);
1132             if (ret)
1133                 matches = compare(ret, dwType, dwFlags, pvPara);
1134         } while (ret != NULL && !matches);
1135         if (!ret)
1136             SetLastError(CRYPT_E_NOT_FOUND);
1137     }
1138     else
1139     {
1140         SetLastError(CRYPT_E_NOT_FOUND);
1141         ret = NULL;
1142     }
1143     TRACE("returning %p\n", ret);
1144     return ret;
1145 }
1146
1147 PCCERT_CONTEXT WINAPI CertGetSubjectCertificateFromStore(HCERTSTORE hCertStore,
1148  DWORD dwCertEncodingType, PCERT_INFO pCertId)
1149 {
1150     TRACE("(%p, %08x, %p)\n", hCertStore, dwCertEncodingType, pCertId);
1151
1152     if (!pCertId)
1153     {
1154         SetLastError(E_INVALIDARG);
1155         return NULL;
1156     }
1157     return CertFindCertificateInStore(hCertStore, dwCertEncodingType, 0,
1158      CERT_FIND_SUBJECT_CERT, pCertId, NULL);
1159 }
1160
1161 BOOL WINAPI CertVerifySubjectCertificateContext(PCCERT_CONTEXT pSubject,
1162  PCCERT_CONTEXT pIssuer, DWORD *pdwFlags)
1163 {
1164     static const DWORD supportedFlags = CERT_STORE_REVOCATION_FLAG |
1165      CERT_STORE_SIGNATURE_FLAG | CERT_STORE_TIME_VALIDITY_FLAG;
1166
1167     if (*pdwFlags & ~supportedFlags)
1168     {
1169         SetLastError(E_INVALIDARG);
1170         return FALSE;
1171     }
1172     if (*pdwFlags & CERT_STORE_REVOCATION_FLAG)
1173     {
1174         DWORD flags = 0;
1175         PCCRL_CONTEXT crl = CertGetCRLFromStore(pSubject->hCertStore, pSubject,
1176          NULL, &flags);
1177
1178         /* FIXME: what if the CRL has expired? */
1179         if (crl)
1180         {
1181             if (CertVerifyCRLRevocation(pSubject->dwCertEncodingType,
1182              pSubject->pCertInfo, 1, (PCRL_INFO *)&crl->pCrlInfo))
1183                 *pdwFlags &= CERT_STORE_REVOCATION_FLAG;
1184         }
1185         else
1186             *pdwFlags |= CERT_STORE_NO_CRL_FLAG;
1187     }
1188     if (*pdwFlags & CERT_STORE_TIME_VALIDITY_FLAG)
1189     {
1190         if (0 == CertVerifyTimeValidity(NULL, pSubject->pCertInfo))
1191             *pdwFlags &= ~CERT_STORE_TIME_VALIDITY_FLAG;
1192     }
1193     if (*pdwFlags & CERT_STORE_SIGNATURE_FLAG)
1194     {
1195         if (CryptVerifyCertificateSignatureEx(0, pSubject->dwCertEncodingType,
1196          CRYPT_VERIFY_CERT_SIGN_SUBJECT_CERT, (void *)pSubject,
1197          CRYPT_VERIFY_CERT_SIGN_ISSUER_CERT, (void *)pIssuer, 0, NULL))
1198             *pdwFlags &= ~CERT_STORE_SIGNATURE_FLAG;
1199     }
1200     return TRUE;
1201 }
1202
1203 PCCERT_CONTEXT WINAPI CertGetIssuerCertificateFromStore(HCERTSTORE hCertStore,
1204  PCCERT_CONTEXT pSubjectContext, PCCERT_CONTEXT pPrevIssuerContext,
1205  DWORD *pdwFlags)
1206 {
1207     PCCERT_CONTEXT ret;
1208
1209     TRACE("(%p, %p, %p, %08x)\n", hCertStore, pSubjectContext,
1210      pPrevIssuerContext, *pdwFlags);
1211
1212     if (!pSubjectContext)
1213     {
1214         SetLastError(E_INVALIDARG);
1215         return NULL;
1216     }
1217
1218     ret = CertFindCertificateInStore(hCertStore,
1219      pSubjectContext->dwCertEncodingType, 0, CERT_FIND_ISSUER_OF,
1220      pSubjectContext, pPrevIssuerContext);
1221     if (ret)
1222     {
1223         if (!CertVerifySubjectCertificateContext(pSubjectContext, ret,
1224          pdwFlags))
1225         {
1226             CertFreeCertificateContext(ret);
1227             ret = NULL;
1228         }
1229     }
1230     TRACE("returning %p\n", ret);
1231     return ret;
1232 }
1233
1234 typedef struct _OLD_CERT_REVOCATION_STATUS {
1235     DWORD cbSize;
1236     DWORD dwIndex;
1237     DWORD dwError;
1238     DWORD dwReason;
1239 } OLD_CERT_REVOCATION_STATUS, *POLD_CERT_REVOCATION_STATUS;
1240
1241 typedef BOOL (WINAPI *CertVerifyRevocationFunc)(DWORD, DWORD, DWORD,
1242  void **, DWORD, PCERT_REVOCATION_PARA, PCERT_REVOCATION_STATUS);
1243
1244 BOOL WINAPI CertVerifyRevocation(DWORD dwEncodingType, DWORD dwRevType,
1245  DWORD cContext, void *rgpvContext[], DWORD dwFlags,
1246  PCERT_REVOCATION_PARA pRevPara, PCERT_REVOCATION_STATUS pRevStatus)
1247 {
1248     BOOL ret;
1249
1250     TRACE("(%08x, %d, %d, %p, %08x, %p, %p)\n", dwEncodingType, dwRevType,
1251      cContext, rgpvContext, dwFlags, pRevPara, pRevStatus);
1252
1253     if (pRevStatus->cbSize != sizeof(OLD_CERT_REVOCATION_STATUS) &&
1254      pRevStatus->cbSize != sizeof(CERT_REVOCATION_STATUS))
1255     {
1256         SetLastError(E_INVALIDARG);
1257         return FALSE;
1258     }
1259     if (cContext)
1260     {
1261         static HCRYPTOIDFUNCSET set = NULL;
1262         DWORD size;
1263
1264         if (!set)
1265             set = CryptInitOIDFunctionSet(CRYPT_OID_VERIFY_REVOCATION_FUNC, 0);
1266         ret = CryptGetDefaultOIDDllList(set, dwEncodingType, NULL, &size);
1267         if (ret)
1268         {
1269             if (size == 1)
1270             {
1271                 /* empty list */
1272                 SetLastError(CRYPT_E_NO_REVOCATION_DLL);
1273                 ret = FALSE;
1274             }
1275             else
1276             {
1277                 LPWSTR dllList = CryptMemAlloc(size * sizeof(WCHAR)), ptr;
1278
1279                 if (dllList)
1280                 {
1281                     ret = CryptGetDefaultOIDDllList(set, dwEncodingType,
1282                      dllList, &size);
1283                     if (ret)
1284                     {
1285                         for (ptr = dllList; ret && *ptr;
1286                          ptr += lstrlenW(ptr) + 1)
1287                         {
1288                             CertVerifyRevocationFunc func;
1289                             HCRYPTOIDFUNCADDR hFunc;
1290
1291                             ret = CryptGetDefaultOIDFunctionAddress(set,
1292                              dwEncodingType, ptr, 0, (void **)&func, &hFunc);
1293                             if (ret)
1294                             {
1295                                 ret = func(dwEncodingType, dwRevType, cContext,
1296                                  rgpvContext, dwFlags, pRevPara, pRevStatus);
1297                                 CryptFreeOIDFunctionAddress(hFunc, 0);
1298                             }
1299                         }
1300                     }
1301                     CryptMemFree(dllList);
1302                 }
1303                 else
1304                 {
1305                     SetLastError(ERROR_OUTOFMEMORY);
1306                     ret = FALSE;
1307                 }
1308             }
1309         }
1310     }
1311     else
1312         ret = TRUE;
1313     return ret;
1314 }
1315
1316 PCRYPT_ATTRIBUTE WINAPI CertFindAttribute(LPCSTR pszObjId, DWORD cAttr,
1317  CRYPT_ATTRIBUTE rgAttr[])
1318 {
1319     PCRYPT_ATTRIBUTE ret = NULL;
1320     DWORD i;
1321
1322     TRACE("%s %d %p\n", debugstr_a(pszObjId), cAttr, rgAttr);
1323
1324     if (!cAttr)
1325         return NULL;
1326     if (!pszObjId)
1327     {
1328         SetLastError(ERROR_INVALID_PARAMETER);
1329         return NULL;
1330     }
1331
1332     for (i = 0; !ret && i < cAttr; i++)
1333         if (rgAttr[i].pszObjId && !strcmp(pszObjId, rgAttr[i].pszObjId))
1334             ret = &rgAttr[i];
1335     return ret;
1336 }
1337
1338 PCERT_EXTENSION WINAPI CertFindExtension(LPCSTR pszObjId, DWORD cExtensions,
1339  CERT_EXTENSION rgExtensions[])
1340 {
1341     PCERT_EXTENSION ret = NULL;
1342     DWORD i;
1343
1344     TRACE("%s %d %p\n", debugstr_a(pszObjId), cExtensions, rgExtensions);
1345
1346     if (!cExtensions)
1347         return NULL;
1348     if (!pszObjId)
1349     {
1350         SetLastError(ERROR_INVALID_PARAMETER);
1351         return NULL;
1352     }
1353
1354     for (i = 0; !ret && i < cExtensions; i++)
1355         if (rgExtensions[i].pszObjId && !strcmp(pszObjId,
1356          rgExtensions[i].pszObjId))
1357             ret = &rgExtensions[i];
1358     return ret;
1359 }
1360
1361 PCERT_RDN_ATTR WINAPI CertFindRDNAttr(LPCSTR pszObjId, PCERT_NAME_INFO pName)
1362 {
1363     PCERT_RDN_ATTR ret = NULL;
1364     DWORD i, j;
1365
1366     TRACE("%s %p\n", debugstr_a(pszObjId), pName);
1367
1368     if (!pszObjId)
1369     {
1370         SetLastError(ERROR_INVALID_PARAMETER);
1371         return NULL;
1372     }
1373
1374     for (i = 0; !ret && i < pName->cRDN; i++)
1375         for (j = 0; !ret && j < pName->rgRDN[i].cRDNAttr; j++)
1376             if (pName->rgRDN[i].rgRDNAttr[j].pszObjId && !strcmp(pszObjId,
1377              pName->rgRDN[i].rgRDNAttr[j].pszObjId))
1378                 ret = &pName->rgRDN[i].rgRDNAttr[j];
1379     return ret;
1380 }
1381
1382 LONG WINAPI CertVerifyTimeValidity(LPFILETIME pTimeToVerify,
1383  PCERT_INFO pCertInfo)
1384 {
1385     FILETIME fileTime;
1386     LONG ret;
1387
1388     if (!pTimeToVerify)
1389     {
1390         GetSystemTimeAsFileTime(&fileTime);
1391         pTimeToVerify = &fileTime;
1392     }
1393     if ((ret = CompareFileTime(pTimeToVerify, &pCertInfo->NotBefore)) >= 0)
1394     {
1395         ret = CompareFileTime(pTimeToVerify, &pCertInfo->NotAfter);
1396         if (ret < 0)
1397             ret = 0;
1398     }
1399     return ret;
1400 }
1401
1402 BOOL WINAPI CertVerifyValidityNesting(PCERT_INFO pSubjectInfo,
1403  PCERT_INFO pIssuerInfo)
1404 {
1405     TRACE("(%p, %p)\n", pSubjectInfo, pIssuerInfo);
1406
1407     return CertVerifyTimeValidity(&pSubjectInfo->NotBefore, pIssuerInfo) == 0
1408      && CertVerifyTimeValidity(&pSubjectInfo->NotAfter, pIssuerInfo) == 0;
1409 }
1410
1411 BOOL WINAPI CryptHashCertificate(HCRYPTPROV_LEGACY hCryptProv, ALG_ID Algid,
1412  DWORD dwFlags, const BYTE *pbEncoded, DWORD cbEncoded, BYTE *pbComputedHash,
1413  DWORD *pcbComputedHash)
1414 {
1415     BOOL ret = TRUE;
1416     HCRYPTHASH hHash = 0;
1417
1418     TRACE("(%08lx, %d, %08x, %p, %d, %p, %p)\n", hCryptProv, Algid, dwFlags,
1419      pbEncoded, cbEncoded, pbComputedHash, pcbComputedHash);
1420
1421     if (!hCryptProv)
1422         hCryptProv = CRYPT_GetDefaultProvider();
1423     if (!Algid)
1424         Algid = CALG_SHA1;
1425     if (ret)
1426     {
1427         ret = CryptCreateHash(hCryptProv, Algid, 0, 0, &hHash);
1428         if (ret)
1429         {
1430             ret = CryptHashData(hHash, pbEncoded, cbEncoded, 0);
1431             if (ret)
1432                 ret = CryptGetHashParam(hHash, HP_HASHVAL, pbComputedHash,
1433                  pcbComputedHash, 0);
1434             CryptDestroyHash(hHash);
1435         }
1436     }
1437     return ret;
1438 }
1439
1440 BOOL WINAPI CryptHashPublicKeyInfo(HCRYPTPROV_LEGACY hCryptProv, ALG_ID Algid,
1441  DWORD dwFlags, DWORD dwCertEncodingType, PCERT_PUBLIC_KEY_INFO pInfo,
1442  BYTE *pbComputedHash, DWORD *pcbComputedHash)
1443 {
1444     BOOL ret = TRUE;
1445     HCRYPTHASH hHash = 0;
1446
1447     TRACE("(%08lx, %d, %08x, %d, %p, %p, %p)\n", hCryptProv, Algid, dwFlags,
1448      dwCertEncodingType, pInfo, pbComputedHash, pcbComputedHash);
1449
1450     if (!hCryptProv)
1451         hCryptProv = CRYPT_GetDefaultProvider();
1452     if (!Algid)
1453         Algid = CALG_MD5;
1454     if (ret)
1455     {
1456         BYTE *buf;
1457         DWORD size = 0;
1458
1459         ret = CryptEncodeObjectEx(dwCertEncodingType, X509_PUBLIC_KEY_INFO,
1460          pInfo, CRYPT_ENCODE_ALLOC_FLAG, NULL, &buf, &size);
1461         if (ret)
1462         {
1463             ret = CryptCreateHash(hCryptProv, Algid, 0, 0, &hHash);
1464             if (ret)
1465             {
1466                 ret = CryptHashData(hHash, buf, size, 0);
1467                 if (ret)
1468                     ret = CryptGetHashParam(hHash, HP_HASHVAL, pbComputedHash,
1469                      pcbComputedHash, 0);
1470                 CryptDestroyHash(hHash);
1471             }
1472             LocalFree(buf);
1473         }
1474     }
1475     return ret;
1476 }
1477
1478 BOOL WINAPI CryptSignCertificate(HCRYPTPROV_OR_NCRYPT_KEY_HANDLE hCryptProv,
1479  DWORD dwKeySpec, DWORD dwCertEncodingType, const BYTE *pbEncodedToBeSigned,
1480  DWORD cbEncodedToBeSigned, PCRYPT_ALGORITHM_IDENTIFIER pSignatureAlgorithm,
1481  const void *pvHashAuxInfo, BYTE *pbSignature, DWORD *pcbSignature)
1482 {
1483     BOOL ret;
1484     PCCRYPT_OID_INFO info;
1485     HCRYPTHASH hHash;
1486
1487     TRACE("(%08lx, %d, %d, %p, %d, %p, %p, %p, %p)\n", hCryptProv,
1488      dwKeySpec, dwCertEncodingType, pbEncodedToBeSigned, cbEncodedToBeSigned,
1489      pSignatureAlgorithm, pvHashAuxInfo, pbSignature, pcbSignature);
1490
1491     info = CryptFindOIDInfo(CRYPT_OID_INFO_OID_KEY,
1492      pSignatureAlgorithm->pszObjId, 0);
1493     if (!info)
1494     {
1495         SetLastError(NTE_BAD_ALGID);
1496         return FALSE;
1497     }
1498     if (info->dwGroupId == CRYPT_HASH_ALG_OID_GROUP_ID)
1499     {
1500         if (!hCryptProv)
1501             hCryptProv = CRYPT_GetDefaultProvider();
1502         ret = CryptCreateHash(hCryptProv, info->u.Algid, 0, 0, &hHash);
1503         if (ret)
1504         {
1505             ret = CryptHashData(hHash, pbEncodedToBeSigned,
1506              cbEncodedToBeSigned, 0);
1507             if (ret)
1508                 ret = CryptGetHashParam(hHash, HP_HASHVAL, pbSignature,
1509                  pcbSignature, 0);
1510             CryptDestroyHash(hHash);
1511         }
1512     }
1513     else
1514     {
1515         if (!hCryptProv)
1516         {
1517             SetLastError(ERROR_INVALID_PARAMETER);
1518             ret = FALSE;
1519         }
1520         else
1521         {
1522             ret = CryptCreateHash(hCryptProv, info->u.Algid, 0, 0, &hHash);
1523             if (ret)
1524             {
1525                 ret = CryptHashData(hHash, pbEncodedToBeSigned,
1526                  cbEncodedToBeSigned, 0);
1527                 if (ret)
1528                     ret = CryptSignHashW(hHash, dwKeySpec, NULL, 0, pbSignature,
1529                      pcbSignature);
1530                 CryptDestroyHash(hHash);
1531             }
1532         }
1533     }
1534     return ret;
1535 }
1536
1537 BOOL WINAPI CryptSignAndEncodeCertificate(HCRYPTPROV_OR_NCRYPT_KEY_HANDLE hCryptProv,
1538  DWORD dwKeySpec, DWORD dwCertEncodingType, LPCSTR lpszStructType,
1539  const void *pvStructInfo, PCRYPT_ALGORITHM_IDENTIFIER pSignatureAlgorithm,
1540  const void *pvHashAuxInfo, BYTE *pbEncoded, DWORD *pcbEncoded)
1541 {
1542     BOOL ret;
1543     DWORD encodedSize, hashSize;
1544
1545     TRACE("(%08lx, %d, %d, %s, %p, %p, %p, %p, %p)\n", hCryptProv, dwKeySpec,
1546      dwCertEncodingType, debugstr_a(lpszStructType), pvStructInfo,
1547      pSignatureAlgorithm, pvHashAuxInfo, pbEncoded, pcbEncoded);
1548
1549     ret = CryptEncodeObject(dwCertEncodingType, lpszStructType, pvStructInfo,
1550      NULL, &encodedSize);
1551     if (ret)
1552     {
1553         PBYTE encoded = CryptMemAlloc(encodedSize);
1554
1555         if (encoded)
1556         {
1557             ret = CryptEncodeObject(dwCertEncodingType, lpszStructType,
1558              pvStructInfo, encoded, &encodedSize);
1559             if (ret)
1560             {
1561                 ret = CryptSignCertificate(hCryptProv, dwKeySpec,
1562                  dwCertEncodingType, encoded, encodedSize, pSignatureAlgorithm,
1563                  pvHashAuxInfo, NULL, &hashSize);
1564                 if (ret)
1565                 {
1566                     PBYTE hash = CryptMemAlloc(hashSize);
1567
1568                     if (hash)
1569                     {
1570                         ret = CryptSignCertificate(hCryptProv, dwKeySpec,
1571                          dwCertEncodingType, encoded, encodedSize,
1572                          pSignatureAlgorithm, pvHashAuxInfo, hash, &hashSize);
1573                         if (ret)
1574                         {
1575                             CERT_SIGNED_CONTENT_INFO info = { { 0 } };
1576
1577                             info.ToBeSigned.cbData = encodedSize;
1578                             info.ToBeSigned.pbData = encoded;
1579                             memcpy(&info.SignatureAlgorithm,
1580                              pSignatureAlgorithm,
1581                              sizeof(info.SignatureAlgorithm));
1582                             info.Signature.cbData = hashSize;
1583                             info.Signature.pbData = hash;
1584                             info.Signature.cUnusedBits = 0;
1585                             ret = CryptEncodeObject(dwCertEncodingType,
1586                              X509_CERT, &info, pbEncoded, pcbEncoded);
1587                         }
1588                         CryptMemFree(hash);
1589                     }
1590                 }
1591             }
1592             CryptMemFree(encoded);
1593         }
1594     }
1595     return ret;
1596 }
1597
1598 BOOL WINAPI CryptVerifyCertificateSignature(HCRYPTPROV_LEGACY hCryptProv,
1599  DWORD dwCertEncodingType, const BYTE *pbEncoded, DWORD cbEncoded,
1600  PCERT_PUBLIC_KEY_INFO pPublicKey)
1601 {
1602     return CryptVerifyCertificateSignatureEx(hCryptProv, dwCertEncodingType,
1603      CRYPT_VERIFY_CERT_SIGN_SUBJECT_BLOB, (void *)pbEncoded,
1604      CRYPT_VERIFY_CERT_SIGN_ISSUER_PUBKEY, pPublicKey, 0, NULL);
1605 }
1606
1607 static BOOL CRYPT_VerifyCertSignatureFromPublicKeyInfo(HCRYPTPROV_LEGACY hCryptProv,
1608  DWORD dwCertEncodingType, PCERT_PUBLIC_KEY_INFO pubKeyInfo,
1609  const CERT_SIGNED_CONTENT_INFO *signedCert)
1610 {
1611     BOOL ret;
1612     HCRYPTKEY key;
1613     PCCRYPT_OID_INFO info;
1614     ALG_ID pubKeyID, hashID;
1615
1616     info = CryptFindOIDInfo(CRYPT_OID_INFO_OID_KEY,
1617      signedCert->SignatureAlgorithm.pszObjId, 0);
1618     if (!info || info->dwGroupId != CRYPT_SIGN_ALG_OID_GROUP_ID)
1619     {
1620         SetLastError(NTE_BAD_ALGID);
1621         return FALSE;
1622     }
1623     hashID = info->u.Algid;
1624     if (info->ExtraInfo.cbData >= sizeof(ALG_ID))
1625         pubKeyID = *(ALG_ID *)info->ExtraInfo.pbData;
1626     else
1627         pubKeyID = hashID;
1628     /* Load the default provider if necessary */
1629     if (!hCryptProv)
1630         hCryptProv = CRYPT_GetDefaultProvider();
1631     ret = CryptImportPublicKeyInfoEx(hCryptProv, dwCertEncodingType,
1632      pubKeyInfo, pubKeyID, 0, NULL, &key);
1633     if (ret)
1634     {
1635         HCRYPTHASH hash;
1636
1637         ret = CryptCreateHash(hCryptProv, hashID, 0, 0, &hash);
1638         if (ret)
1639         {
1640             ret = CryptHashData(hash, signedCert->ToBeSigned.pbData,
1641              signedCert->ToBeSigned.cbData, 0);
1642             if (ret)
1643                 ret = CryptVerifySignatureW(hash, signedCert->Signature.pbData,
1644                  signedCert->Signature.cbData, key, NULL, 0);
1645             CryptDestroyHash(hash);
1646         }
1647         CryptDestroyKey(key);
1648     }
1649     return ret;
1650 }
1651
1652 BOOL WINAPI CryptVerifyCertificateSignatureEx(HCRYPTPROV_LEGACY hCryptProv,
1653  DWORD dwCertEncodingType, DWORD dwSubjectType, void *pvSubject,
1654  DWORD dwIssuerType, void *pvIssuer, DWORD dwFlags, void *pvReserved)
1655 {
1656     BOOL ret = TRUE;
1657     CRYPT_DATA_BLOB subjectBlob;
1658
1659     TRACE("(%08lx, %d, %d, %p, %d, %p, %08x, %p)\n", hCryptProv,
1660      dwCertEncodingType, dwSubjectType, pvSubject, dwIssuerType, pvIssuer,
1661      dwFlags, pvReserved);
1662
1663     switch (dwSubjectType)
1664     {
1665     case CRYPT_VERIFY_CERT_SIGN_SUBJECT_BLOB:
1666     {
1667         PCRYPT_DATA_BLOB blob = (PCRYPT_DATA_BLOB)pvSubject;
1668
1669         subjectBlob.pbData = blob->pbData;
1670         subjectBlob.cbData = blob->cbData;
1671         break;
1672     }
1673     case CRYPT_VERIFY_CERT_SIGN_SUBJECT_CERT:
1674     {
1675         PCERT_CONTEXT context = (PCERT_CONTEXT)pvSubject;
1676
1677         subjectBlob.pbData = context->pbCertEncoded;
1678         subjectBlob.cbData = context->cbCertEncoded;
1679         break;
1680     }
1681     case CRYPT_VERIFY_CERT_SIGN_SUBJECT_CRL:
1682     {
1683         PCRL_CONTEXT context = (PCRL_CONTEXT)pvSubject;
1684
1685         subjectBlob.pbData = context->pbCrlEncoded;
1686         subjectBlob.cbData = context->cbCrlEncoded;
1687         break;
1688     }
1689     default:
1690         SetLastError(E_INVALIDARG);
1691         ret = FALSE;
1692     }
1693
1694     if (ret)
1695     {
1696         PCERT_SIGNED_CONTENT_INFO signedCert = NULL;
1697         DWORD size = 0;
1698
1699         ret = CryptDecodeObjectEx(dwCertEncodingType, X509_CERT,
1700          subjectBlob.pbData, subjectBlob.cbData,
1701          CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,
1702          (BYTE *)&signedCert, &size);
1703         if (ret)
1704         {
1705             switch (dwIssuerType)
1706             {
1707             case CRYPT_VERIFY_CERT_SIGN_ISSUER_PUBKEY:
1708                 ret = CRYPT_VerifyCertSignatureFromPublicKeyInfo(hCryptProv,
1709                  dwCertEncodingType, (PCERT_PUBLIC_KEY_INFO)pvIssuer,
1710                  signedCert);
1711                 break;
1712             case CRYPT_VERIFY_CERT_SIGN_ISSUER_CERT:
1713                 ret = CRYPT_VerifyCertSignatureFromPublicKeyInfo(hCryptProv,
1714                  dwCertEncodingType,
1715                  &((PCCERT_CONTEXT)pvIssuer)->pCertInfo->SubjectPublicKeyInfo,
1716                  signedCert);
1717                 break;
1718             case CRYPT_VERIFY_CERT_SIGN_ISSUER_CHAIN:
1719                 FIXME("CRYPT_VERIFY_CERT_SIGN_ISSUER_CHAIN: stub\n");
1720                 ret = FALSE;
1721                 break;
1722             case CRYPT_VERIFY_CERT_SIGN_ISSUER_NULL:
1723                 if (pvIssuer)
1724                 {
1725                     SetLastError(E_INVALIDARG);
1726                     ret = FALSE;
1727                 }
1728                 else
1729                 {
1730                     FIXME("unimplemented for NULL signer\n");
1731                     SetLastError(E_INVALIDARG);
1732                     ret = FALSE;
1733                 }
1734                 break;
1735             default:
1736                 SetLastError(E_INVALIDARG);
1737                 ret = FALSE;
1738             }
1739             LocalFree(signedCert);
1740         }
1741     }
1742     return ret;
1743 }
1744
1745 BOOL WINAPI CertGetEnhancedKeyUsage(PCCERT_CONTEXT pCertContext, DWORD dwFlags,
1746  PCERT_ENHKEY_USAGE pUsage, DWORD *pcbUsage)
1747 {
1748     PCERT_ENHKEY_USAGE usage = NULL;
1749     DWORD bytesNeeded;
1750     BOOL ret = TRUE;
1751
1752     if (!pCertContext || !pcbUsage)
1753     {
1754         SetLastError(ERROR_INVALID_PARAMETER);
1755         return FALSE;
1756     }
1757
1758     TRACE("(%p, %08x, %p, %d)\n", pCertContext, dwFlags, pUsage, *pcbUsage);
1759
1760     if (!(dwFlags & CERT_FIND_EXT_ONLY_ENHKEY_USAGE_FLAG))
1761     {
1762         DWORD propSize = 0;
1763
1764         if (CertGetCertificateContextProperty(pCertContext,
1765          CERT_ENHKEY_USAGE_PROP_ID, NULL, &propSize))
1766         {
1767             LPBYTE buf = CryptMemAlloc(propSize);
1768
1769             if (buf)
1770             {
1771                 if (CertGetCertificateContextProperty(pCertContext,
1772                  CERT_ENHKEY_USAGE_PROP_ID, buf, &propSize))
1773                 {
1774                     ret = CryptDecodeObjectEx(pCertContext->dwCertEncodingType,
1775                      X509_ENHANCED_KEY_USAGE, buf, propSize,
1776                      CRYPT_ENCODE_ALLOC_FLAG, NULL, &usage, &bytesNeeded);
1777                 }
1778                 CryptMemFree(buf);
1779             }
1780         }
1781     }
1782     if (!usage && !(dwFlags & CERT_FIND_PROP_ONLY_ENHKEY_USAGE_FLAG))
1783     {
1784         PCERT_EXTENSION ext = CertFindExtension(szOID_ENHANCED_KEY_USAGE,
1785          pCertContext->pCertInfo->cExtension,
1786          pCertContext->pCertInfo->rgExtension);
1787
1788         if (ext)
1789         {
1790             ret = CryptDecodeObjectEx(pCertContext->dwCertEncodingType,
1791              X509_ENHANCED_KEY_USAGE, ext->Value.pbData, ext->Value.cbData,
1792              CRYPT_ENCODE_ALLOC_FLAG, NULL, &usage, &bytesNeeded);
1793         }
1794     }
1795     if (!usage)
1796     {
1797         /* If a particular location is specified, this should fail.  Otherwise
1798          * it should succeed with an empty usage.  (This is true on Win2k and
1799          * later, which we emulate.)
1800          */
1801         if (dwFlags)
1802         {
1803             SetLastError(CRYPT_E_NOT_FOUND);
1804             ret = FALSE;
1805         }
1806         else
1807             bytesNeeded = sizeof(CERT_ENHKEY_USAGE);
1808     }
1809
1810     if (ret)
1811     {
1812         if (!pUsage)
1813             *pcbUsage = bytesNeeded;
1814         else if (*pcbUsage < bytesNeeded)
1815         {
1816             SetLastError(ERROR_MORE_DATA);
1817             *pcbUsage = bytesNeeded;
1818             ret = FALSE;
1819         }
1820         else
1821         {
1822             *pcbUsage = bytesNeeded;
1823             if (usage)
1824             {
1825                 DWORD i;
1826                 LPSTR nextOID = (LPSTR)((LPBYTE)pUsage +
1827                  sizeof(CERT_ENHKEY_USAGE) +
1828                  usage->cUsageIdentifier * sizeof(LPSTR));
1829
1830                 pUsage->cUsageIdentifier = usage->cUsageIdentifier;
1831                 pUsage->rgpszUsageIdentifier = (LPSTR *)((LPBYTE)pUsage +
1832                  sizeof(CERT_ENHKEY_USAGE));
1833                 for (i = 0; i < usage->cUsageIdentifier; i++)
1834                 {
1835                     pUsage->rgpszUsageIdentifier[i] = nextOID;
1836                     strcpy(nextOID, usage->rgpszUsageIdentifier[i]);
1837                     nextOID += strlen(nextOID) + 1;
1838                 }
1839             }
1840             else
1841                 pUsage->cUsageIdentifier = 0;
1842         }
1843     }
1844     if (usage)
1845         LocalFree(usage);
1846     TRACE("returning %d\n", ret);
1847     return ret;
1848 }
1849
1850 BOOL WINAPI CertSetEnhancedKeyUsage(PCCERT_CONTEXT pCertContext,
1851  PCERT_ENHKEY_USAGE pUsage)
1852 {
1853     BOOL ret;
1854
1855     TRACE("(%p, %p)\n", pCertContext, pUsage);
1856
1857     if (pUsage)
1858     {
1859         CRYPT_DATA_BLOB blob = { 0, NULL };
1860
1861         ret = CryptEncodeObjectEx(X509_ASN_ENCODING, X509_ENHANCED_KEY_USAGE,
1862          pUsage, CRYPT_ENCODE_ALLOC_FLAG, NULL, &blob.pbData, &blob.cbData);
1863         if (ret)
1864         {
1865             ret = CertSetCertificateContextProperty(pCertContext,
1866              CERT_ENHKEY_USAGE_PROP_ID, 0, &blob);
1867             LocalFree(blob.pbData);
1868         }
1869     }
1870     else
1871         ret = CertSetCertificateContextProperty(pCertContext,
1872          CERT_ENHKEY_USAGE_PROP_ID, 0, NULL);
1873     return ret;
1874 }
1875
1876 BOOL WINAPI CertAddEnhancedKeyUsageIdentifier(PCCERT_CONTEXT pCertContext,
1877  LPCSTR pszUsageIdentifier)
1878 {
1879     BOOL ret;
1880     DWORD size;
1881
1882     TRACE("(%p, %s)\n", pCertContext, debugstr_a(pszUsageIdentifier));
1883
1884     if (CertGetEnhancedKeyUsage(pCertContext,
1885      CERT_FIND_PROP_ONLY_ENHKEY_USAGE_FLAG, NULL, &size))
1886     {
1887         PCERT_ENHKEY_USAGE usage = CryptMemAlloc(size);
1888
1889         if (usage)
1890         {
1891             ret = CertGetEnhancedKeyUsage(pCertContext,
1892              CERT_FIND_PROP_ONLY_ENHKEY_USAGE_FLAG, usage, &size);
1893             if (ret)
1894             {
1895                 PCERT_ENHKEY_USAGE newUsage = CryptMemAlloc(size +
1896                  sizeof(LPSTR) + strlen(pszUsageIdentifier) + 1);
1897
1898                 if (newUsage)
1899                 {
1900                     LPSTR nextOID;
1901                     DWORD i;
1902
1903                     newUsage->rgpszUsageIdentifier =
1904                      (LPSTR *)((LPBYTE)newUsage + sizeof(CERT_ENHKEY_USAGE));
1905                     nextOID = (LPSTR)((LPBYTE)newUsage->rgpszUsageIdentifier +
1906                      (usage->cUsageIdentifier + 1) * sizeof(LPSTR));
1907                     for (i = 0; i < usage->cUsageIdentifier; i++)
1908                     {
1909                         newUsage->rgpszUsageIdentifier[i] = nextOID;
1910                         strcpy(nextOID, usage->rgpszUsageIdentifier[i]);
1911                         nextOID += strlen(nextOID) + 1;
1912                     }
1913                     newUsage->rgpszUsageIdentifier[i] = nextOID;
1914                     strcpy(nextOID, pszUsageIdentifier);
1915                     newUsage->cUsageIdentifier = i + 1;
1916                     ret = CertSetEnhancedKeyUsage(pCertContext, newUsage);
1917                     CryptMemFree(newUsage);
1918                 }
1919             }
1920             CryptMemFree(usage);
1921         }
1922         else
1923             ret = FALSE;
1924     }
1925     else
1926     {
1927         PCERT_ENHKEY_USAGE usage = CryptMemAlloc(sizeof(CERT_ENHKEY_USAGE) +
1928          sizeof(LPSTR) + strlen(pszUsageIdentifier) + 1);
1929
1930         if (usage)
1931         {
1932             usage->rgpszUsageIdentifier =
1933              (LPSTR *)((LPBYTE)usage + sizeof(CERT_ENHKEY_USAGE));
1934             usage->rgpszUsageIdentifier[0] = (LPSTR)((LPBYTE)usage +
1935              sizeof(CERT_ENHKEY_USAGE) + sizeof(LPSTR));
1936             strcpy(usage->rgpszUsageIdentifier[0], pszUsageIdentifier);
1937             usage->cUsageIdentifier = 1;
1938             ret = CertSetEnhancedKeyUsage(pCertContext, usage);
1939             CryptMemFree(usage);
1940         }
1941         else
1942             ret = FALSE;
1943     }
1944     return ret;
1945 }
1946
1947 BOOL WINAPI CertRemoveEnhancedKeyUsageIdentifier(PCCERT_CONTEXT pCertContext,
1948  LPCSTR pszUsageIdentifier)
1949 {
1950     BOOL ret;
1951     DWORD size;
1952     CERT_ENHKEY_USAGE usage;
1953
1954     TRACE("(%p, %s)\n", pCertContext, debugstr_a(pszUsageIdentifier));
1955
1956     size = sizeof(usage);
1957     ret = CertGetEnhancedKeyUsage(pCertContext,
1958      CERT_FIND_PROP_ONLY_ENHKEY_USAGE_FLAG, &usage, &size);
1959     if (!ret && GetLastError() == ERROR_MORE_DATA)
1960     {
1961         PCERT_ENHKEY_USAGE pUsage = CryptMemAlloc(size);
1962
1963         if (pUsage)
1964         {
1965             ret = CertGetEnhancedKeyUsage(pCertContext,
1966              CERT_FIND_PROP_ONLY_ENHKEY_USAGE_FLAG, pUsage, &size);
1967             if (ret)
1968             {
1969                 if (pUsage->cUsageIdentifier)
1970                 {
1971                     DWORD i;
1972                     BOOL found = FALSE;
1973
1974                     for (i = 0; i < pUsage->cUsageIdentifier; i++)
1975                     {
1976                         if (!strcmp(pUsage->rgpszUsageIdentifier[i],
1977                          pszUsageIdentifier))
1978                             found = TRUE;
1979                         if (found && i < pUsage->cUsageIdentifier - 1)
1980                             pUsage->rgpszUsageIdentifier[i] =
1981                              pUsage->rgpszUsageIdentifier[i + 1];
1982                     }
1983                     pUsage->cUsageIdentifier--;
1984                     /* Remove the usage if it's empty */
1985                     if (pUsage->cUsageIdentifier)
1986                         ret = CertSetEnhancedKeyUsage(pCertContext, pUsage);
1987                     else
1988                         ret = CertSetEnhancedKeyUsage(pCertContext, NULL);
1989                 }
1990             }
1991             CryptMemFree(pUsage);
1992         }
1993         else
1994             ret = FALSE;
1995     }
1996     else
1997     {
1998         /* it fit in an empty usage, therefore there's nothing to remove */
1999         ret = TRUE;
2000     }
2001     return ret;
2002 }
2003
2004 struct BitField
2005 {
2006     DWORD  cIndexes;
2007     DWORD *indexes;
2008 };
2009
2010 #define BITS_PER_DWORD (sizeof(DWORD) * 8)
2011
2012 static void CRYPT_SetBitInField(struct BitField *field, DWORD bit)
2013 {
2014     DWORD indexIndex = bit / BITS_PER_DWORD;
2015
2016     if (indexIndex + 1 > field->cIndexes)
2017     {
2018         if (field->cIndexes)
2019             field->indexes = CryptMemRealloc(field->indexes,
2020              (indexIndex + 1) * sizeof(DWORD));
2021         else
2022             field->indexes = CryptMemAlloc(sizeof(DWORD));
2023         if (field->indexes)
2024         {
2025             field->indexes[indexIndex] = 0;
2026             field->cIndexes = indexIndex + 1;
2027         }
2028     }
2029     if (field->indexes)
2030         field->indexes[indexIndex] |= 1 << (bit % BITS_PER_DWORD);
2031 }
2032
2033 static BOOL CRYPT_IsBitInFieldSet(struct BitField *field, DWORD bit)
2034 {
2035     BOOL set = FALSE;
2036     DWORD indexIndex = bit / BITS_PER_DWORD;
2037
2038     assert(field->cIndexes);
2039     set = field->indexes[indexIndex] & (1 << (bit % BITS_PER_DWORD));
2040     return set;
2041 }
2042
2043 BOOL WINAPI CertGetValidUsages(DWORD cCerts, PCCERT_CONTEXT *rghCerts,
2044  int *cNumOIDs, LPSTR *rghOIDs, DWORD *pcbOIDs)
2045 {
2046     BOOL ret = TRUE;
2047     DWORD i, cbOIDs = 0;
2048     BOOL allUsagesValid = TRUE;
2049     CERT_ENHKEY_USAGE validUsages = { 0, NULL };
2050
2051     TRACE("(%d, %p, %d, %p, %d)\n", cCerts, rghCerts, *cNumOIDs,
2052      rghOIDs, *pcbOIDs);
2053
2054     for (i = 0; i < cCerts; i++)
2055     {
2056         CERT_ENHKEY_USAGE usage;
2057         DWORD size = sizeof(usage);
2058
2059         ret = CertGetEnhancedKeyUsage(rghCerts[i], 0, &usage, &size);
2060         /* Success is deliberately ignored: it implies all usages are valid */
2061         if (!ret && GetLastError() == ERROR_MORE_DATA)
2062         {
2063             PCERT_ENHKEY_USAGE pUsage = CryptMemAlloc(size);
2064
2065             allUsagesValid = FALSE;
2066             if (pUsage)
2067             {
2068                 ret = CertGetEnhancedKeyUsage(rghCerts[i], 0, pUsage, &size);
2069                 if (ret)
2070                 {
2071                     if (!validUsages.cUsageIdentifier)
2072                     {
2073                         DWORD j;
2074
2075                         cbOIDs = pUsage->cUsageIdentifier * sizeof(LPSTR);
2076                         validUsages.cUsageIdentifier = pUsage->cUsageIdentifier;
2077                         for (j = 0; j < validUsages.cUsageIdentifier; j++)
2078                             cbOIDs += lstrlenA(pUsage->rgpszUsageIdentifier[j])
2079                              + 1;
2080                         validUsages.rgpszUsageIdentifier =
2081                          CryptMemAlloc(cbOIDs);
2082                         if (validUsages.rgpszUsageIdentifier)
2083                         {
2084                             LPSTR nextOID = (LPSTR)
2085                              ((LPBYTE)validUsages.rgpszUsageIdentifier +
2086                              validUsages.cUsageIdentifier * sizeof(LPSTR));
2087
2088                             for (j = 0; j < validUsages.cUsageIdentifier; j++)
2089                             {
2090                                 validUsages.rgpszUsageIdentifier[j] = nextOID;
2091                                 lstrcpyA(validUsages.rgpszUsageIdentifier[j],
2092                                  pUsage->rgpszUsageIdentifier[j]);
2093                                 nextOID += lstrlenA(nextOID) + 1;
2094                             }
2095                         }
2096                     }
2097                     else
2098                     {
2099                         struct BitField validIndexes = { 0, NULL };
2100                         DWORD j, k, numRemoved = 0;
2101
2102                         /* Merge: build a bitmap of all the indexes of
2103                          * validUsages.rgpszUsageIdentifier that are in pUsage.
2104                          */
2105                         for (j = 0; j < pUsage->cUsageIdentifier; j++)
2106                         {
2107                             for (k = 0; k < validUsages.cUsageIdentifier; k++)
2108                             {
2109                                 if (!strcmp(pUsage->rgpszUsageIdentifier[j],
2110                                  validUsages.rgpszUsageIdentifier[k]))
2111                                 {
2112                                     CRYPT_SetBitInField(&validIndexes, k);
2113                                     break;
2114                                 }
2115                             }
2116                         }
2117                         /* Merge by removing from validUsages those that are
2118                          * not in the bitmap.
2119                          */
2120                         for (j = 0; j < validUsages.cUsageIdentifier; j++)
2121                         {
2122                             if (!CRYPT_IsBitInFieldSet(&validIndexes, j))
2123                             {
2124                                 if (j < validUsages.cUsageIdentifier - 1)
2125                                 {
2126                                     memcpy(&validUsages.rgpszUsageIdentifier[j],
2127                                      &validUsages.rgpszUsageIdentifier[j +
2128                                      numRemoved + 1],
2129                                      (validUsages.cUsageIdentifier - numRemoved
2130                                      - j - 1) * sizeof(LPSTR));
2131                                     cbOIDs -= lstrlenA(
2132                                      validUsages.rgpszUsageIdentifier[j]) + 1 +
2133                                      sizeof(LPSTR);
2134                                     validUsages.cUsageIdentifier--;
2135                                     numRemoved++;
2136                                 }
2137                                 else
2138                                     validUsages.cUsageIdentifier--;
2139                             }
2140                         }
2141                         CryptMemFree(validIndexes.indexes);
2142                     }
2143                 }
2144                 CryptMemFree(pUsage);
2145             }
2146         }
2147     }
2148     ret = TRUE;
2149     if (allUsagesValid)
2150     {
2151         *cNumOIDs = -1;
2152         *pcbOIDs = 0;
2153     }
2154     else
2155     {
2156         *cNumOIDs = validUsages.cUsageIdentifier;
2157         if (!rghOIDs)
2158             *pcbOIDs = cbOIDs;
2159         else if (*pcbOIDs < cbOIDs)
2160         {
2161             *pcbOIDs = cbOIDs;
2162             SetLastError(ERROR_MORE_DATA);
2163             ret = FALSE;
2164         }
2165         else
2166         {
2167             LPSTR nextOID = (LPSTR)((LPBYTE)rghOIDs +
2168              validUsages.cUsageIdentifier * sizeof(LPSTR));
2169
2170             *pcbOIDs = cbOIDs;
2171             for (i = 0; i < validUsages.cUsageIdentifier; i++)
2172             {
2173                 rghOIDs[i] = nextOID;
2174                 lstrcpyA(nextOID, validUsages.rgpszUsageIdentifier[i]);
2175                 nextOID += lstrlenA(nextOID) + 1;
2176             }
2177         }
2178     }
2179     CryptMemFree(validUsages.rgpszUsageIdentifier);
2180     TRACE("cNumOIDs: %d\n", *cNumOIDs);
2181     TRACE("returning %d\n", ret);
2182     return ret;
2183 }
2184
2185 /* Sets the CERT_KEY_PROV_INFO_PROP_ID property of context from pInfo, or, if
2186  * pInfo is NULL, from the attributes of hProv.
2187  */
2188 static void CertContext_SetKeyProvInfo(PCCERT_CONTEXT context,
2189  const CRYPT_KEY_PROV_INFO *pInfo, HCRYPTPROV hProv)
2190 {
2191     CRYPT_KEY_PROV_INFO info = { 0 };
2192     BOOL ret;
2193
2194     if (!pInfo)
2195     {
2196         DWORD size;
2197         int len;
2198
2199         ret = CryptGetProvParam(hProv, PP_CONTAINER, NULL, &size, 0);
2200         if (ret)
2201         {
2202             LPSTR szContainer = CryptMemAlloc(size);
2203
2204             if (szContainer)
2205             {
2206                 ret = CryptGetProvParam(hProv, PP_CONTAINER,
2207                  (BYTE *)szContainer, &size, 0);
2208                 if (ret)
2209                 {
2210                     len = MultiByteToWideChar(CP_ACP, 0, szContainer, -1,
2211                      NULL, 0);
2212                     if (len)
2213                     {
2214                         info.pwszContainerName = CryptMemAlloc(len *
2215                          sizeof(WCHAR));
2216                         len = MultiByteToWideChar(CP_ACP, 0, szContainer, -1,
2217                          info.pwszContainerName, len);
2218                     }
2219                 }
2220                 CryptMemFree(szContainer);
2221             }
2222         }
2223         ret = CryptGetProvParam(hProv, PP_NAME, NULL, &size, 0);
2224         if (ret)
2225         {
2226             LPSTR szProvider = CryptMemAlloc(size);
2227
2228             if (szProvider)
2229             {
2230                 ret = CryptGetProvParam(hProv, PP_NAME, (BYTE *)szProvider,
2231                  &size, 0);
2232                 if (ret)
2233                 {
2234                     len = MultiByteToWideChar(CP_ACP, 0, szProvider, -1,
2235                      NULL, 0);
2236                     if (len)
2237                     {
2238                         info.pwszProvName = CryptMemAlloc(len *
2239                          sizeof(WCHAR));
2240                         len = MultiByteToWideChar(CP_ACP, 0, szProvider, -1,
2241                          info.pwszProvName, len);
2242                     }
2243                 }
2244                 CryptMemFree(szProvider);
2245             }
2246         }
2247         size = sizeof(info.dwKeySpec);
2248         /* in case no CRYPT_KEY_PROV_INFO given,
2249          *  we always use AT_SIGNATURE key spec
2250          */
2251         info.dwKeySpec = AT_SIGNATURE;
2252         size = sizeof(info.dwProvType);
2253         ret = CryptGetProvParam(hProv, PP_PROVTYPE, (LPBYTE)&info.dwProvType,
2254          &size, 0);
2255         if (!ret)
2256             info.dwProvType = PROV_RSA_FULL;
2257         pInfo = &info;
2258     }
2259
2260     ret = CertSetCertificateContextProperty(context, CERT_KEY_PROV_INFO_PROP_ID,
2261      0, pInfo);
2262
2263     if (pInfo == &info)
2264     {
2265         CryptMemFree(info.pwszContainerName);
2266         CryptMemFree(info.pwszProvName);
2267     }
2268 }
2269
2270 /* Creates a signed certificate context from the unsigned, encoded certificate
2271  * in blob, using the crypto provider hProv and the signature algorithm sigAlgo.
2272  */
2273 static PCCERT_CONTEXT CRYPT_CreateSignedCert(const CRYPT_DER_BLOB *blob,
2274  HCRYPTPROV hProv, DWORD dwKeySpec, PCRYPT_ALGORITHM_IDENTIFIER sigAlgo)
2275 {
2276     PCCERT_CONTEXT context = NULL;
2277     BOOL ret;
2278     DWORD sigSize = 0;
2279
2280     ret = CryptSignCertificate(hProv, dwKeySpec, X509_ASN_ENCODING,
2281      blob->pbData, blob->cbData, sigAlgo, NULL, NULL, &sigSize);
2282     if (ret)
2283     {
2284         LPBYTE sig = CryptMemAlloc(sigSize);
2285
2286         ret = CryptSignCertificate(hProv, dwKeySpec, X509_ASN_ENCODING,
2287          blob->pbData, blob->cbData, sigAlgo, NULL, sig, &sigSize);
2288         if (ret)
2289         {
2290             CERT_SIGNED_CONTENT_INFO signedInfo;
2291             BYTE *encodedSignedCert = NULL;
2292             DWORD encodedSignedCertSize = 0;
2293
2294             signedInfo.ToBeSigned.cbData = blob->cbData;
2295             signedInfo.ToBeSigned.pbData = blob->pbData;
2296             memcpy(&signedInfo.SignatureAlgorithm, sigAlgo,
2297              sizeof(signedInfo.SignatureAlgorithm));
2298             signedInfo.Signature.cbData = sigSize;
2299             signedInfo.Signature.pbData = sig;
2300             signedInfo.Signature.cUnusedBits = 0;
2301             ret = CryptEncodeObjectEx(X509_ASN_ENCODING, X509_CERT,
2302              &signedInfo, CRYPT_ENCODE_ALLOC_FLAG, NULL,
2303              (BYTE *)&encodedSignedCert, &encodedSignedCertSize);
2304             if (ret)
2305             {
2306                 context = CertCreateCertificateContext(X509_ASN_ENCODING,
2307                  encodedSignedCert, encodedSignedCertSize);
2308                 LocalFree(encodedSignedCert);
2309             }
2310         }
2311         CryptMemFree(sig);
2312     }
2313     return context;
2314 }
2315
2316 /* Copies data from the parameters into info, where:
2317  * pSerialNumber: The serial number.  Must not be NULL.
2318  * pSubjectIssuerBlob: Specifies both the subject and issuer for info.
2319  *                     Must not be NULL
2320  * pSignatureAlgorithm: Optional.
2321  * pStartTime: The starting time of the certificate.  If NULL, the current
2322  *             system time is used.
2323  * pEndTime: The ending time of the certificate.  If NULL, one year past the
2324  *           starting time is used.
2325  * pubKey: The public key of the certificate.  Must not be NULL.
2326  * pExtensions: Extensions to be included with the certificate.  Optional.
2327  */
2328 static void CRYPT_MakeCertInfo(PCERT_INFO info, const CRYPT_DATA_BLOB *pSerialNumber,
2329  const CERT_NAME_BLOB *pSubjectIssuerBlob,
2330  const CRYPT_ALGORITHM_IDENTIFIER *pSignatureAlgorithm, const SYSTEMTIME *pStartTime,
2331  const SYSTEMTIME *pEndTime, const CERT_PUBLIC_KEY_INFO *pubKey,
2332  const CERT_EXTENSIONS *pExtensions)
2333 {
2334     static CHAR oid[] = szOID_RSA_SHA1RSA;
2335
2336     assert(info);
2337     assert(pSerialNumber);
2338     assert(pSubjectIssuerBlob);
2339     assert(pubKey);
2340
2341     info->dwVersion = CERT_V3;
2342     info->SerialNumber.cbData = pSerialNumber->cbData;
2343     info->SerialNumber.pbData = pSerialNumber->pbData;
2344     if (pSignatureAlgorithm)
2345         memcpy(&info->SignatureAlgorithm, pSignatureAlgorithm,
2346          sizeof(info->SignatureAlgorithm));
2347     else
2348     {
2349         info->SignatureAlgorithm.pszObjId = oid;
2350         info->SignatureAlgorithm.Parameters.cbData = 0;
2351         info->SignatureAlgorithm.Parameters.pbData = NULL;
2352     }
2353     info->Issuer.cbData = pSubjectIssuerBlob->cbData;
2354     info->Issuer.pbData = pSubjectIssuerBlob->pbData;
2355     if (pStartTime)
2356         SystemTimeToFileTime(pStartTime, &info->NotBefore);
2357     else
2358         GetSystemTimeAsFileTime(&info->NotBefore);
2359     if (pEndTime)
2360         SystemTimeToFileTime(pEndTime, &info->NotAfter);
2361     else
2362     {
2363         SYSTEMTIME endTime;
2364
2365         if (FileTimeToSystemTime(&info->NotBefore, &endTime))
2366         {
2367             endTime.wYear++;
2368             SystemTimeToFileTime(&endTime, &info->NotAfter);
2369         }
2370     }
2371     info->Subject.cbData = pSubjectIssuerBlob->cbData;
2372     info->Subject.pbData = pSubjectIssuerBlob->pbData;
2373     memcpy(&info->SubjectPublicKeyInfo, pubKey,
2374      sizeof(info->SubjectPublicKeyInfo));
2375     if (pExtensions)
2376     {
2377         info->cExtension = pExtensions->cExtension;
2378         info->rgExtension = pExtensions->rgExtension;
2379     }
2380     else
2381     {
2382         info->cExtension = 0;
2383         info->rgExtension = NULL;
2384     }
2385 }
2386
2387 typedef RPC_STATUS (RPC_ENTRY *UuidCreateFunc)(UUID *);
2388 typedef RPC_STATUS (RPC_ENTRY *UuidToStringFunc)(UUID *, unsigned char **);
2389 typedef RPC_STATUS (RPC_ENTRY *RpcStringFreeFunc)(unsigned char **);
2390
2391 static HCRYPTPROV CRYPT_CreateKeyProv(void)
2392 {
2393     HCRYPTPROV hProv = 0;
2394     HMODULE rpcrt = LoadLibraryA("rpcrt4");
2395
2396     if (rpcrt)
2397     {
2398         UuidCreateFunc uuidCreate = (UuidCreateFunc)GetProcAddress(rpcrt,
2399          "UuidCreate");
2400         UuidToStringFunc uuidToString = (UuidToStringFunc)GetProcAddress(rpcrt,
2401          "UuidToStringA");
2402         RpcStringFreeFunc rpcStringFree = (RpcStringFreeFunc)GetProcAddress(
2403          rpcrt, "RpcStringFreeA");
2404
2405         if (uuidCreate && uuidToString && rpcStringFree)
2406         {
2407             UUID uuid;
2408             RPC_STATUS status = uuidCreate(&uuid);
2409
2410             if (status == RPC_S_OK || status == RPC_S_UUID_LOCAL_ONLY)
2411             {
2412                 unsigned char *uuidStr;
2413
2414                 status = uuidToString(&uuid, &uuidStr);
2415                 if (status == RPC_S_OK)
2416                 {
2417                     BOOL ret = CryptAcquireContextA(&hProv, (LPCSTR)uuidStr,
2418                      MS_DEF_PROV_A, PROV_RSA_FULL, CRYPT_NEWKEYSET);
2419
2420                     if (ret)
2421                     {
2422                         HCRYPTKEY key;
2423
2424                         ret = CryptGenKey(hProv, AT_SIGNATURE, 0, &key);
2425                         if (ret)
2426                             CryptDestroyKey(key);
2427                     }
2428                     rpcStringFree(&uuidStr);
2429                 }
2430             }
2431         }
2432         FreeLibrary(rpcrt);
2433     }
2434     return hProv;
2435 }
2436
2437 PCCERT_CONTEXT WINAPI CertCreateSelfSignCertificate(HCRYPTPROV_OR_NCRYPT_KEY_HANDLE hProv,
2438  PCERT_NAME_BLOB pSubjectIssuerBlob, DWORD dwFlags,
2439  PCRYPT_KEY_PROV_INFO pKeyProvInfo,
2440  PCRYPT_ALGORITHM_IDENTIFIER pSignatureAlgorithm, PSYSTEMTIME pStartTime,
2441  PSYSTEMTIME pEndTime, PCERT_EXTENSIONS pExtensions)
2442 {
2443     PCCERT_CONTEXT context = NULL;
2444     BOOL ret, releaseContext = FALSE;
2445     PCERT_PUBLIC_KEY_INFO pubKey = NULL;
2446     DWORD pubKeySize = 0,dwKeySpec = AT_SIGNATURE;
2447
2448     TRACE("(%08lx, %p, %08x, %p, %p, %p, %p, %p)\n", hProv,
2449      pSubjectIssuerBlob, dwFlags, pKeyProvInfo, pSignatureAlgorithm, pStartTime,
2450      pExtensions, pExtensions);
2451
2452     if(!pSubjectIssuerBlob)
2453     {
2454         SetLastError(ERROR_INVALID_PARAMETER);
2455         return NULL;
2456     }
2457
2458     if (!hProv)
2459     {
2460         if (!pKeyProvInfo)
2461         {
2462             hProv = CRYPT_CreateKeyProv();
2463             releaseContext = TRUE;
2464         }
2465         else if (pKeyProvInfo->dwFlags & CERT_SET_KEY_PROV_HANDLE_PROP_ID)
2466         {
2467             SetLastError(NTE_BAD_FLAGS);
2468             return NULL;
2469         }
2470         else
2471         {
2472             HCRYPTKEY hKey = 0;
2473             /* acquire the context using the given information*/
2474             ret = CryptAcquireContextW(&hProv,pKeyProvInfo->pwszContainerName,
2475                     pKeyProvInfo->pwszProvName,pKeyProvInfo->dwProvType,
2476                     pKeyProvInfo->dwFlags);
2477             if (!ret)
2478             {
2479                 if(GetLastError() != NTE_BAD_KEYSET)
2480                     return NULL;
2481                 /* create the key set */
2482                 ret = CryptAcquireContextW(&hProv,pKeyProvInfo->pwszContainerName,
2483                     pKeyProvInfo->pwszProvName,pKeyProvInfo->dwProvType,
2484                     pKeyProvInfo->dwFlags|CRYPT_NEWKEYSET);
2485                 if (!ret)
2486                     return NULL;
2487             }
2488             dwKeySpec = pKeyProvInfo->dwKeySpec;
2489             /* check if the key is here */
2490             ret = CryptGetUserKey(hProv,dwKeySpec,&hKey);
2491             if(!ret)
2492             {
2493                 if (NTE_NO_KEY == GetLastError())
2494                 { /* generate the key */
2495                     ret = CryptGenKey(hProv,dwKeySpec,0,&hKey);
2496                 }
2497                 if (!ret)
2498                 {
2499                     CryptReleaseContext(hProv,0);
2500                     SetLastError(NTE_BAD_KEYSET);
2501                     return NULL;
2502                 }
2503             }
2504             CryptDestroyKey(hKey);
2505             releaseContext = TRUE;
2506         }
2507     }
2508     else if (pKeyProvInfo)
2509     {
2510         SetLastError(ERROR_INVALID_PARAMETER);
2511         return NULL;
2512     }
2513
2514     CryptExportPublicKeyInfo(hProv, dwKeySpec, X509_ASN_ENCODING, NULL,
2515      &pubKeySize);
2516     pubKey = CryptMemAlloc(pubKeySize);
2517     if (pubKey)
2518     {
2519         ret = CryptExportPublicKeyInfo(hProv, dwKeySpec, X509_ASN_ENCODING,
2520          pubKey, &pubKeySize);
2521         if (ret)
2522         {
2523             CERT_INFO info = { 0 };
2524             CRYPT_DER_BLOB blob = { 0, NULL };
2525             BYTE serial[16];
2526             CRYPT_DATA_BLOB serialBlob = { sizeof(serial), serial };
2527
2528             CryptGenRandom(hProv, sizeof(serial), serial);
2529             CRYPT_MakeCertInfo(&info, &serialBlob, pSubjectIssuerBlob,
2530              pSignatureAlgorithm, pStartTime, pEndTime, pubKey, pExtensions);
2531             ret = CryptEncodeObjectEx(X509_ASN_ENCODING, X509_CERT_TO_BE_SIGNED,
2532              &info, CRYPT_ENCODE_ALLOC_FLAG, NULL, (BYTE *)&blob.pbData,
2533              &blob.cbData);
2534             if (ret)
2535             {
2536                 if (!(dwFlags & CERT_CREATE_SELFSIGN_NO_SIGN))
2537                     context = CRYPT_CreateSignedCert(&blob, hProv,dwKeySpec,
2538                      &info.SignatureAlgorithm);
2539                 else
2540                     context = CertCreateCertificateContext(X509_ASN_ENCODING,
2541                      blob.pbData, blob.cbData);
2542                 if (context && !(dwFlags & CERT_CREATE_SELFSIGN_NO_KEY_INFO))
2543                     CertContext_SetKeyProvInfo(context, pKeyProvInfo, hProv);
2544                 LocalFree(blob.pbData);
2545             }
2546         }
2547         CryptMemFree(pubKey);
2548     }
2549     if (releaseContext)
2550         CryptReleaseContext(hProv, 0);
2551     return context;
2552 }