|
private WTHelperProvDataFromStateData ( |
||
| hStateData | ||
| return | ||
private CryptoError GetCertInfo(IntPtr hWVTStateData, out Native.CERT_INFO certInfo, out string failedApiName)
{
certInfo = new Native.CERT_INFO();
failedApiName = "WTHelperProvDataFromStateData";
IntPtr providerData = Native.WTHelperProvDataFromStateData(hWVTStateData);
if (providerData == IntPtr.Zero)
{
return((CryptoError)Marshal.GetLastWin32Error());
}
failedApiName = "WTHelperGetProvSignerFromChain";
IntPtr providerSigner = Native.WTHelperGetProvSignerFromChain(providerData, 0, false, 0);
if (providerSigner == IntPtr.Zero)
{
return((CryptoError)Marshal.GetLastWin32Error());
}
var cryptProviderSigner = (Native.CRYPT_PROVIDER_SGNR)Marshal.PtrToStructure(providerSigner, typeof(Native.CRYPT_PROVIDER_SGNR));
var cryptoError = (CryptoError)cryptProviderSigner.dwError;
if (cryptProviderSigner.pChainContext != IntPtr.Zero)
{
var chainContext = (Native.CERT_CHAIN_CONTEXT)Marshal.PtrToStructure(cryptProviderSigner.pChainContext, typeof(Native.CERT_CHAIN_CONTEXT));
IntPtr[] simpleChains = new IntPtr[chainContext.cChain];
Marshal.Copy(chainContext.rgpChain, simpleChains, 0, simpleChains.Length);
var certChain = (Native.CERT_SIMPLE_CHAIN)Marshal.PtrToStructure(simpleChains[0], typeof(Native.CERT_SIMPLE_CHAIN));
IntPtr[] chainElements = new IntPtr[certChain.cElement];
Marshal.Copy(certChain.rgpElement, chainElements, 0, chainElements.Length);
var certElement = (Native.CERT_CHAIN_ELEMENT)Marshal.PtrToStructure(chainElements[0], typeof(Native.CERT_CHAIN_ELEMENT));
var certContext = (Native.CERT_CONTEXT)Marshal.PtrToStructure(certElement.pCertContext, typeof(Native.CERT_CONTEXT));
certInfo = (Native.CERT_INFO)Marshal.PtrToStructure(certContext.pCertInfo, typeof(Native.CERT_INFO));
}
if (cryptoError == CryptoError.ERROR_SUCCESS)
{
failedApiName = null;
}
return(cryptoError);
}
private CryptoError GetSignerHashAlgorithms(IntPtr hWVTStateData, out string hashAlgorithm, out string hashEncryptionAlgorithm, out string failedApiName)
{
hashAlgorithm = hashEncryptionAlgorithm = null;
failedApiName = "WTHelperProvDataFromStateData";
IntPtr providerData = Native.WTHelperProvDataFromStateData(hWVTStateData);
if (providerData == IntPtr.Zero)
{
return((CryptoError)Marshal.GetLastWin32Error());
}
failedApiName = "WTHelperGetProvSignerFromChain";
IntPtr providerSigner = Native.WTHelperGetProvSignerFromChain(providerData, 0, false, 0);
if (providerSigner == IntPtr.Zero)
{
return((CryptoError)Marshal.GetLastWin32Error());
}
var cryptProviderSigner = (Native.CRYPT_PROVIDER_SGNR)Marshal.PtrToStructure(providerSigner, typeof(Native.CRYPT_PROVIDER_SGNR));
var cryptoError = (CryptoError)cryptProviderSigner.dwError;
if (cryptProviderSigner.psSigner != IntPtr.Zero)
{
var psSigner = (Native.CMSG_SIGNER_INFO)Marshal.PtrToStructure(cryptProviderSigner.psSigner, typeof(Native.CMSG_SIGNER_INFO));
hashAlgorithm = GetAlgorithmName(psSigner.HashAlgorithm.pszObjId);
hashEncryptionAlgorithm = GetAlgorithmName(psSigner.HashEncryptionAlgorithm.pszObjId);
}
if (cryptoError == CryptoError.ERROR_SUCCESS)
{
failedApiName = null;
}
return(cryptoError);
}
