BOOL WINAPI CryptHashMessage(PCRYPT_HASH_MESSAGE_PARA pHashPara,
BOOL fDetachedHash, DWORD cToBeHashed, const BYTE *rgpbToBeHashed[],
DWORD rgcbToBeHashed[], BYTE *pbHashedBlob, DWORD *pcbHashedBlob,
BYTE *pbComputedHash, DWORD *pcbComputedHash)
{
DWORD i, flags;
BOOL ret = FALSE;
HCRYPTMSG msg;
CMSG_HASHED_ENCODE_INFO info;
TRACE("(%p, %d, %d, %p, %p, %p, %p, %p, %p)\n", pHashPara, fDetachedHash,
cToBeHashed, rgpbToBeHashed, rgcbToBeHashed, pbHashedBlob, pcbHashedBlob,
pbComputedHash, pcbComputedHash);
if (pHashPara->cbSize != sizeof(CRYPT_HASH_MESSAGE_PARA))
{
SetLastError(E_INVALIDARG);
return FALSE;
}
/* Native seems to ignore any encoding type other than the expected
* PKCS_7_ASN_ENCODING
*/
if (GET_CMSG_ENCODING_TYPE(pHashPara->dwMsgEncodingType) !=
PKCS_7_ASN_ENCODING)
return TRUE;
/* Native also seems to do nothing if the output parameter isn't given */
if (!pcbHashedBlob)
return TRUE;
flags = fDetachedHash ? CMSG_DETACHED_FLAG : 0;
memset(&info, 0, sizeof(info));
info.cbSize = sizeof(info);
info.hCryptProv = pHashPara->hCryptProv;
memcpy(&info.HashAlgorithm, &pHashPara->HashAlgorithm,
sizeof(info.HashAlgorithm));
info.pvHashAuxInfo = pHashPara->pvHashAuxInfo;
msg = CryptMsgOpenToEncode(pHashPara->dwMsgEncodingType, flags, CMSG_HASHED,
&info, NULL, NULL);
if (msg)
{
for (i = 0, ret = TRUE; ret && i < cToBeHashed; i++)
ret = CryptMsgUpdate(msg, rgpbToBeHashed[i], rgcbToBeHashed[i],
i == cToBeHashed - 1 ? TRUE : FALSE);
if (ret)
{
ret = CryptMsgGetParam(msg, CMSG_CONTENT_PARAM, 0, pbHashedBlob,
pcbHashedBlob);
if (ret && pcbComputedHash)
ret = CryptMsgGetParam(msg, CMSG_COMPUTED_HASH_PARAM, 0,
pbComputedHash, pcbComputedHash);
}
CryptMsgClose(msg);
}
return ret;
}
BOOL WINAPI CryptVerifyDetachedMessageHash(PCRYPT_HASH_MESSAGE_PARA pHashPara,
BYTE *pbDetachedHashBlob, DWORD cbDetachedHashBlob, DWORD cToBeHashed,
const BYTE *rgpbToBeHashed[], DWORD rgcbToBeHashed[], BYTE *pbComputedHash,
DWORD *pcbComputedHash)
{
HCRYPTMSG msg;
BOOL ret = FALSE;
TRACE("(%p, %p, %d, %d, %p, %p, %p, %p)\n", pHashPara, pbDetachedHashBlob,
cbDetachedHashBlob, cToBeHashed, rgpbToBeHashed, rgcbToBeHashed,
pbComputedHash, pcbComputedHash);
if (pHashPara->cbSize != sizeof(CRYPT_HASH_MESSAGE_PARA))
{
SetLastError(E_INVALIDARG);
return FALSE;
}
if (GET_CMSG_ENCODING_TYPE(pHashPara->dwMsgEncodingType) !=
PKCS_7_ASN_ENCODING)
{
SetLastError(E_INVALIDARG);
return FALSE;
}
msg = CryptMsgOpenToDecode(pHashPara->dwMsgEncodingType, CMSG_DETACHED_FLAG,
0, pHashPara->hCryptProv, NULL, NULL);
if (msg)
{
DWORD i;
ret = CryptMsgUpdate(msg, pbDetachedHashBlob, cbDetachedHashBlob, TRUE);
if (ret)
{
if (cToBeHashed)
{
for (i = 0; ret && i < cToBeHashed; i++)
{
ret = CryptMsgUpdate(msg, rgpbToBeHashed[i],
rgcbToBeHashed[i], i == cToBeHashed - 1);
}
}
else
ret = CryptMsgUpdate(msg, NULL, 0, TRUE);
}
if (ret)
{
ret = CryptMsgControl(msg, 0, CMSG_CTRL_VERIFY_HASH, NULL);
if (ret && pcbComputedHash)
ret = CryptMsgGetParam(msg, CMSG_COMPUTED_HASH_PARAM, 0,
pbComputedHash, pcbComputedHash);
}
CryptMsgClose(msg);
}
return ret;
}
BOOL WINAPI CryptVerifyMessageHash(PCRYPT_HASH_MESSAGE_PARA pHashPara,
BYTE *pbHashedBlob, DWORD cbHashedBlob, BYTE *pbToBeHashed,
DWORD *pcbToBeHashed, BYTE *pbComputedHash, DWORD *pcbComputedHash)
{
HCRYPTMSG msg;
BOOL ret = FALSE;
TRACE("(%p, %p, %d, %p, %p, %p, %p)\n", pHashPara, pbHashedBlob,
cbHashedBlob, pbToBeHashed, pcbToBeHashed, pbComputedHash,
pcbComputedHash);
if (pHashPara->cbSize != sizeof(CRYPT_HASH_MESSAGE_PARA))
{
SetLastError(E_INVALIDARG);
return FALSE;
}
if (GET_CMSG_ENCODING_TYPE(pHashPara->dwMsgEncodingType) !=
PKCS_7_ASN_ENCODING)
{
SetLastError(E_INVALIDARG);
return FALSE;
}
msg = CryptMsgOpenToDecode(pHashPara->dwMsgEncodingType, 0, 0,
pHashPara->hCryptProv, NULL, NULL);
if (msg)
{
ret = CryptMsgUpdate(msg, pbHashedBlob, cbHashedBlob, TRUE);
if (ret)
{
ret = CryptMsgControl(msg, 0, CMSG_CTRL_VERIFY_HASH, NULL);
if (ret && pcbToBeHashed)
ret = CryptMsgGetParam(msg, CMSG_CONTENT_PARAM, 0,
pbToBeHashed, pcbToBeHashed);
if (ret && pcbComputedHash)
ret = CryptMsgGetParam(msg, CMSG_COMPUTED_HASH_PARAM, 0,
pbComputedHash, pcbComputedHash);
}
CryptMsgClose(msg);
}
return ret;
}
BOOL WINAPI CryptEncryptMessage(PCRYPT_ENCRYPT_MESSAGE_PARA pEncryptPara,
DWORD cRecipientCert, PCCERT_CONTEXT rgpRecipientCert[],
const BYTE *pbToBeEncrypted, DWORD cbToBeEncrypted, BYTE *pbEncryptedBlob,
DWORD *pcbEncryptedBlob)
{
BOOL ret = TRUE;
DWORD i;
PCERT_INFO *certInfo = NULL;
CMSG_ENVELOPED_ENCODE_INFO envelopedInfo;
HCRYPTMSG msg = 0;
TRACE("(%p, %d, %p, %p, %d, %p, %p)\n", pEncryptPara, cRecipientCert,
rgpRecipientCert, pbToBeEncrypted, cbToBeEncrypted, pbEncryptedBlob,
pcbEncryptedBlob);
if (pEncryptPara->cbSize != sizeof(CRYPT_ENCRYPT_MESSAGE_PARA) ||
GET_CMSG_ENCODING_TYPE(pEncryptPara->dwMsgEncodingType) !=
PKCS_7_ASN_ENCODING)
{
*pcbEncryptedBlob = 0;
SetLastError(E_INVALIDARG);
return FALSE;
}
memset(&envelopedInfo, 0, sizeof(envelopedInfo));
envelopedInfo.cbSize = sizeof(envelopedInfo);
envelopedInfo.hCryptProv = pEncryptPara->hCryptProv;
envelopedInfo.ContentEncryptionAlgorithm =
pEncryptPara->ContentEncryptionAlgorithm;
envelopedInfo.pvEncryptionAuxInfo = pEncryptPara->pvEncryptionAuxInfo;
if (cRecipientCert)
{
certInfo = CryptMemAlloc(sizeof(PCERT_INFO) * cRecipientCert);
if (certInfo)
{
for (i = 0; i < cRecipientCert; ++i)
certInfo[i] = rgpRecipientCert[i]->pCertInfo;
envelopedInfo.cRecipients = cRecipientCert;
envelopedInfo.rgpRecipientCert = certInfo;
}
else
ret = FALSE;
}
if (ret)
msg = CryptMsgOpenToEncode(pEncryptPara->dwMsgEncodingType, 0,
CMSG_ENVELOPED, &envelopedInfo, NULL, NULL);
if (msg)
{
ret = CryptMsgUpdate(msg, pbToBeEncrypted, cbToBeEncrypted, TRUE);
if (ret)
ret = CryptMsgGetParam(msg, CMSG_CONTENT_PARAM, 0, pbEncryptedBlob,
pcbEncryptedBlob);
CryptMsgClose(msg);
}
else
ret = FALSE;
CryptMemFree(certInfo);
if (!ret) *pcbEncryptedBlob = 0;
return ret;
}
BOOL WINAPI CryptSignMessage(PCRYPT_SIGN_MESSAGE_PARA pSignPara,
BOOL fDetachedSignature, DWORD cToBeSigned, const BYTE *rgpbToBeSigned[],
DWORD rgcbToBeSigned[], BYTE *pbSignedBlob, DWORD *pcbSignedBlob)
{
HCRYPTPROV hCryptProv;
BOOL ret, freeProv = FALSE;
DWORD i, keySpec;
PCERT_BLOB certBlob = NULL;
PCRL_BLOB crlBlob = NULL;
CMSG_SIGNED_ENCODE_INFO signInfo;
CMSG_SIGNER_ENCODE_INFO signer;
HCRYPTMSG msg = 0;
TRACE("(%p, %d, %d, %p, %p, %p, %p)\n", pSignPara, fDetachedSignature,
cToBeSigned, rgpbToBeSigned, rgcbToBeSigned, pbSignedBlob, pcbSignedBlob);
if (pSignPara->cbSize != sizeof(CRYPT_SIGN_MESSAGE_PARA) ||
GET_CMSG_ENCODING_TYPE(pSignPara->dwMsgEncodingType) !=
PKCS_7_ASN_ENCODING)
{
*pcbSignedBlob = 0;
SetLastError(E_INVALIDARG);
return FALSE;
}
if (!pSignPara->pSigningCert)
return TRUE;
ret = CryptAcquireCertificatePrivateKey(pSignPara->pSigningCert,
CRYPT_ACQUIRE_CACHE_FLAG, NULL, &hCryptProv, &keySpec, &freeProv);
if (!ret)
return FALSE;
memset(&signer, 0, sizeof(signer));
signer.cbSize = sizeof(signer);
signer.pCertInfo = pSignPara->pSigningCert->pCertInfo;
signer.hCryptProv = hCryptProv;
signer.dwKeySpec = keySpec;
signer.HashAlgorithm = pSignPara->HashAlgorithm;
signer.pvHashAuxInfo = pSignPara->pvHashAuxInfo;
signer.cAuthAttr = pSignPara->cAuthAttr;
signer.rgAuthAttr = pSignPara->rgAuthAttr;
signer.cUnauthAttr = pSignPara->cUnauthAttr;
signer.rgUnauthAttr = pSignPara->rgUnauthAttr;
memset(&signInfo, 0, sizeof(signInfo));
signInfo.cbSize = sizeof(signInfo);
signInfo.cSigners = 1;
signInfo.rgSigners = &signer;
if (pSignPara->cMsgCert)
{
certBlob = CryptMemAlloc(sizeof(CERT_BLOB) * pSignPara->cMsgCert);
if (certBlob)
{
for (i = 0; i < pSignPara->cMsgCert; ++i)
{
certBlob[i].cbData = pSignPara->rgpMsgCert[i]->cbCertEncoded;
certBlob[i].pbData = pSignPara->rgpMsgCert[i]->pbCertEncoded;
}
signInfo.cCertEncoded = pSignPara->cMsgCert;
signInfo.rgCertEncoded = certBlob;
}
else
ret = FALSE;
}
if (pSignPara->cMsgCrl)
{
crlBlob = CryptMemAlloc(sizeof(CRL_BLOB) * pSignPara->cMsgCrl);
if (crlBlob)
{
for (i = 0; i < pSignPara->cMsgCrl; ++i)
{
crlBlob[i].cbData = pSignPara->rgpMsgCrl[i]->cbCrlEncoded;
crlBlob[i].pbData = pSignPara->rgpMsgCrl[i]->pbCrlEncoded;
}
signInfo.cCrlEncoded = pSignPara->cMsgCrl;
signInfo.rgCrlEncoded = crlBlob;
}
else
ret = FALSE;
}
if (pSignPara->dwFlags || pSignPara->dwInnerContentType)
FIXME("unimplemented feature\n");
if (ret)
msg = CryptMsgOpenToEncode(pSignPara->dwMsgEncodingType,
fDetachedSignature ? CMSG_DETACHED_FLAG : 0, CMSG_SIGNED, &signInfo,
NULL, NULL);
if (msg)
{
if (cToBeSigned)
{
for (i = 0; ret && i < cToBeSigned; ++i)
{
ret = CryptMsgUpdate(msg, rgpbToBeSigned[i], rgcbToBeSigned[i],
i == cToBeSigned - 1);
}
}
else
ret = CryptMsgUpdate(msg, NULL, 0, TRUE);
if (ret)
ret = CryptMsgGetParam(msg, CMSG_CONTENT_PARAM, 0, pbSignedBlob,
pcbSignedBlob);
CryptMsgClose(msg);
}
else
ret = FALSE;
CryptMemFree(crlBlob);
CryptMemFree(certBlob);
if (freeProv)
CryptReleaseContext(hCryptProv, 0);
return ret;
}
BOOL WINAPI CryptVerifyMessageSignature(PCRYPT_VERIFY_MESSAGE_PARA pVerifyPara,
DWORD dwSignerIndex, const BYTE* pbSignedBlob, DWORD cbSignedBlob,
BYTE* pbDecoded, DWORD* pcbDecoded, PCCERT_CONTEXT* ppSignerCert)
{
BOOL ret = FALSE;
HCRYPTMSG msg;
TRACE("(%p, %d, %p, %d, %p, %p, %p)\n",
pVerifyPara, dwSignerIndex, pbSignedBlob, cbSignedBlob,
pbDecoded, pcbDecoded, ppSignerCert);
if (ppSignerCert)
*ppSignerCert = NULL;
if (!pVerifyPara ||
pVerifyPara->cbSize != sizeof(CRYPT_VERIFY_MESSAGE_PARA) ||
GET_CMSG_ENCODING_TYPE(pVerifyPara->dwMsgAndCertEncodingType) !=
PKCS_7_ASN_ENCODING)
{
if(pcbDecoded)
*pcbDecoded = 0;
SetLastError(E_INVALIDARG);
return FALSE;
}
msg = CryptMsgOpenToDecode(pVerifyPara->dwMsgAndCertEncodingType, 0, 0,
pVerifyPara->hCryptProv, NULL, NULL);
if (msg)
{
ret = CryptMsgUpdate(msg, pbSignedBlob, cbSignedBlob, TRUE);
if (ret && pcbDecoded)
ret = CryptMsgGetParam(msg, CMSG_CONTENT_PARAM, 0, pbDecoded,
pcbDecoded);
if (ret)
{
CERT_INFO *certInfo = CRYPT_GetSignerCertInfoFromMsg(msg,
dwSignerIndex);
ret = FALSE;
if (certInfo)
{
HCERTSTORE store = CertOpenStore(CERT_STORE_PROV_MSG,
pVerifyPara->dwMsgAndCertEncodingType,
pVerifyPara->hCryptProv, 0, msg);
if (store)
{
PCCERT_CONTEXT cert = CRYPT_GetSignerCertificate(
msg, pVerifyPara, certInfo, store);
if (cert)
{
ret = CryptMsgControl(msg, 0,
CMSG_CTRL_VERIFY_SIGNATURE, cert->pCertInfo);
if (ret && ppSignerCert)
*ppSignerCert = cert;
else
CertFreeCertificateContext(cert);
}
CertCloseStore(store, 0);
}
}
CryptMemFree(certInfo);
}
CryptMsgClose(msg);
}
if(!ret && pcbDecoded)
*pcbDecoded = 0;
TRACE("returning %d\n", ret);
return ret;
}
BOOL WINAPI CryptVerifyDetachedMessageSignature(
PCRYPT_VERIFY_MESSAGE_PARA pVerifyPara, DWORD dwSignerIndex,
const BYTE *pbDetachedSignBlob, DWORD cbDetachedSignBlob, DWORD cToBeSigned,
const BYTE *rgpbToBeSigned[], DWORD rgcbToBeSigned[],
PCCERT_CONTEXT *ppSignerCert)
{
BOOL ret = FALSE;
HCRYPTMSG msg;
TRACE("(%p, %d, %p, %d, %d, %p, %p, %p)\n", pVerifyPara, dwSignerIndex,
pbDetachedSignBlob, cbDetachedSignBlob, cToBeSigned, rgpbToBeSigned,
rgcbToBeSigned, ppSignerCert);
if (ppSignerCert)
*ppSignerCert = NULL;
if (!pVerifyPara ||
pVerifyPara->cbSize != sizeof(CRYPT_VERIFY_MESSAGE_PARA) ||
GET_CMSG_ENCODING_TYPE(pVerifyPara->dwMsgAndCertEncodingType) !=
PKCS_7_ASN_ENCODING)
{
SetLastError(E_INVALIDARG);
return FALSE;
}
msg = CryptMsgOpenToDecode(pVerifyPara->dwMsgAndCertEncodingType,
CMSG_DETACHED_FLAG, 0, pVerifyPara->hCryptProv, NULL, NULL);
if (msg)
{
ret = CryptMsgUpdate(msg, pbDetachedSignBlob, cbDetachedSignBlob, TRUE);
if (ret)
{
DWORD i;
for (i = 0; ret && i < cToBeSigned; i++)
ret = CryptMsgUpdate(msg, rgpbToBeSigned[i], rgcbToBeSigned[i],
i == cToBeSigned - 1);
}
if (ret)
{
CERT_INFO *certInfo = CRYPT_GetSignerCertInfoFromMsg(msg,
dwSignerIndex);
ret = FALSE;
if (certInfo)
{
HCERTSTORE store = CertOpenStore(CERT_STORE_PROV_MSG,
pVerifyPara->dwMsgAndCertEncodingType,
pVerifyPara->hCryptProv, 0, msg);
if (store)
{
PCCERT_CONTEXT cert = CRYPT_GetSignerCertificate(
msg, pVerifyPara, certInfo, store);
if (cert)
{
ret = CryptMsgControl(msg, 0,
CMSG_CTRL_VERIFY_SIGNATURE, cert->pCertInfo);
if (ret && ppSignerCert)
*ppSignerCert = cert;
else
CertFreeCertificateContext(cert);
}
else
SetLastError(CRYPT_E_NOT_FOUND);
CertCloseStore(store, 0);
}
CryptMemFree(certInfo);
}
}
CryptMsgClose(msg);
}
TRACE("returning %d\n", ret);
return ret;
}
