[VC++]CryptoAPI解析X509证书信息

PCCERT_CONTEXT pCertContext = CertCreateCertificateContext(X509_ASN_ENCODING, CerInfo, outLen);DWORD version = pCertContext->pCertInfo->dwVersion; // 证书版本号//证书序列号CRYPT_INTEGER_BLOB snBlob = pCertContext->pCertInfo->SerialNumber; char SNchar[100];int j=0;for(int i=snBlob.cbData-1;i>=0;i--){sprintf(SNchar+j,"%02X ",snBlob.pbData[i]);j+=3;}//证书名称wchar_t Issuer[256];CertGetNameString(pCertContext,CERT_NAME_SIMPLE_DISPLAY_TYPE,0,NULL,Issuer,sizeof(Issuer));//证书颁发者wchar_t Subject[256];CertGetNameString(pCertContext,CERT_NAME_RDN_TYPE,0,NULL,Subject,sizeof(Subject));//证书有效时间CTime dtBefore(pCertContext->pCertInfo->NotBefore);CTime dtAfter(pCertContext->pCertInfo->NotAfter);char time[256];sprintf(time,"%ls 至 %ls", dtBefore.Format("%Y-%m-%d %H:%M:%S"), dtAfter.Format("%Y-%m-%d %H:%M:%S"));//公钥CRYPT_BIT_BLOB PublicKey=pCertContext->pCertInfo->SubjectPublicKeyInfo.PublicKey;char Keychar[1024];j=0;for(int i=0;i<PublicKey.cbData;i++){sprintf(Keychar+j,"%02X ",PublicKey.pbData[i]);j+=3;}char Cerchar[2048];sprintf(Cerchar,"版本号:V%d\n证书序列号:%s\n证书使用者:%ls\n证书颁发者:%ls\n证书有效时间:%s\n公钥:%s",version+1,SNchar,Issuer,Subject,time,Keychar);CString CerStr(Cerchar);GetDlgItem(IDC_CERINFO)->SetWindowText(CerStr);