public static SigningKey CreateFromCertificate(X509Certificate2 certificate) { SafeCryptKeyHandle cryptKeyHandleFromCertificatePrivateKey = CngNative.GetCryptKeyHandleFromCertificatePrivateKey(certificate); string text = CngNative.NCryptGetPropertyString(cryptKeyHandleFromCertificatePrivateKey, "Algorithm Group"); if (text.Equals("RSA", StringComparison.OrdinalIgnoreCase)) { return(new RsaSigningKey(cryptKeyHandleFromCertificatePrivateKey, certificate)); } return(new DsaSigningKey(cryptKeyHandleFromCertificatePrivateKey, certificate)); }
internal static int NCryptGetPropertyInt32(SafeCryptKeyHandle hObject, string propertyName) { byte[] array = new byte[4]; int num; CngNative.ErrorCode errorCode = CngNative.NCryptGetProperty(hObject, propertyName, array, array.Length, out num, 0); if (errorCode != CngNative.ErrorCode.Success) { throw new Win32Exception((int)errorCode); } return(BitConverter.ToInt32(array, 0)); }
internal static SafeCryptKeyHandle GetCryptKeyHandleFromCertificatePrivateKey(X509Certificate2 cert) { SafeCryptKeyHandle result = new SafeCryptKeyHandle(); uint num = 0u; bool flag = false; if (!CngNative.CryptAcquireCertificatePrivateKey(cert.Handle, 262208u, IntPtr.Zero, ref result, ref num, ref flag)) { int lastWin32Error = Marshal.GetLastWin32Error(); throw new Win32Exception(lastWin32Error); } if (!flag || num != 4294967295u) { throw new InvalidOperationException(); } return(result); }
internal static string NCryptGetPropertyString(SafeCryptKeyHandle hObject, string propertyName) { int num = 0; CngNative.ErrorCode errorCode = CngNative.NCryptGetProperty(hObject, propertyName, null, 0, out num, 0); if (errorCode != CngNative.ErrorCode.Success) { throw new Win32Exception((int)errorCode); } byte[] array = new byte[num]; errorCode = CngNative.NCryptGetProperty(hObject, propertyName, array, array.Length, out num, 0); if (errorCode != CngNative.ErrorCode.Success) { throw new Win32Exception((int)errorCode); } string arg_4E_0 = Encoding.Unicode.GetString(array, 0, num); char[] trimChars = new char[1]; return(arg_4E_0.Trim(trimChars)); }
internal SigningKey(SafeCryptKeyHandle keyHandle, X509Certificate2 certificate) { this.KeyHandle = keyHandle; this.Certificate = certificate; this.CertificateThumbprint = SigningKey.StringToByteArray(this.Certificate.Thumbprint); }
internal RsaSigningKey(SafeCryptKeyHandle keyHandle, X509Certificate2 certificate) : base(keyHandle, certificate) { }
internal static extern CngNative.ErrorCode NCryptSignHashPkcs1(SafeCryptKeyHandle hKey, [In] ref CngNative.BCRYPT_PKCS1_PADDING_INFO pPaddingInfo, [MarshalAs(UnmanagedType.LPArray)][In] byte[] pbHashValue, int cbHashValue, [MarshalAs(UnmanagedType.LPArray)] byte[] pbSignature, int cbSignature, out int pcbResult, CngNative.AsymmetricPaddingMode dwFlags);
internal static extern CngNative.ErrorCode NCryptSignHash(SafeCryptKeyHandle hKey, IntPtr pPaddingInfo, [MarshalAs(UnmanagedType.LPArray)] byte[] pbHashValue, int cbHashValue, [MarshalAs(UnmanagedType.LPArray)] byte[] pbSignature, int cbSignature, out int pcbResult, int dwFlags);
internal static extern CngNative.ErrorCode NCryptGetProperty(SafeCryptKeyHandle hObject, string pszProperty, [MarshalAs(UnmanagedType.LPArray)][Out] byte[] pbOutput, int cbOutput, out int pcbResult, int dwFlags);
internal static extern bool CryptAcquireCertificatePrivateKey([In] IntPtr pCertContext, [In] uint dwFlags, [In] IntPtr pvReserved, [In][Out] ref SafeCryptKeyHandle phKeyHandle, [In][Out] ref uint pdwKeySpec, [In][Out] ref bool pfCallerFreeProv);