证书的数字签名和认证

证书的数字签名和认证(3)   verify sign
 */
 DWORD cbDecodeMessageBlob;
 BYTE* pbDecodeMessageBlob;
 
 CRYPT_VERIFY_MESSAGE_PARA verifyParams;
 
 verifyParams.cbSize = sizeof(CRYPT_VERIFY_MESSAGE_PARA);
 verifyParams.dwMsgAndCertEncodingType = MY_TYPE;
 verifyParams.hCryptProv = 0;
 verifyParams.pfnGetSignerCertificate = NULL;
 verifyParams.pvGetArg = NULL;

 if(CryptVerifyMessageSignature(&verifyParams,0,pbSignedMessageBlob,cbSignedMessageBlob,NULL,&cbDecodeMessageBlob,NULL))
 {
  printf("total buffer%d\n",cbDecodeMessageBlob);
 }

 if(!(pbDecodeMessageBlob = (BYTE*)malloc(cbDecodeMessageBlob)))
 {
  printf("alloc failed!\n");
 }
 if(CryptVerifyMessageSignature(&verifyParams,0,pbSignedMessageBlob,cbSignedMessageBlob,pbDecodeMessageBlob,&cbDecodeMessageBlob,NULL))
 {
  printf("verify message:\n%s\n",(char*)pbDecodeMessageBlob);
 }
 /*
 some release operation........
 */
 if(pbSignedMessageBlob)
  free(pbSignedMessageBlob);

 if(pbDecodeMessageBlob)
  free(pbDecodeMessageBlob);

 if(pSignerCert)
  CertFreeCertificateContext(pSignerCert);

 if(CertCloseStore(hStoreHandle,CERT_CLOSE_STORE_CHECK_FLAG))
 {
  printf("all release...\n");
 }
 else
 {
  printf(".......");
 }
 return 0;
}