internal static void VerifyStatus(CngNative.ErrorCode status)
{
if (status != CngNative.ErrorCode.Success)
{
throw new Win32Exception((int)status);
}
}
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));
}
public override byte[] Sign(byte[] data, SignatureHashAlgorithm hashAlgorithm)
{
HashAlgorithm hashAlgorithm2 = hashAlgorithm.CreateAlgorithm();
byte[] array = hashAlgorithm2.ComputeHash(data);
int num;
CngNative.ErrorCode status = CngNative.NCryptSignHash(base.KeyHandle, IntPtr.Zero, array, array.Length, null, 0, out num, 0);
CngNative.VerifyStatus(status);
byte[] array2 = new byte[num];
status = CngNative.NCryptSignHash(base.KeyHandle, IntPtr.Zero, array, array.Length, array2, array2.Length, out num, 0);
CngNative.VerifyStatus(status);
return(array2);
}
public override byte[] Sign(byte[] data, SignatureHashAlgorithm hashAlgorithm)
{
HashAlgorithm hashAlgorithm2 = hashAlgorithm.CreateAlgorithm();
byte[] array = hashAlgorithm2.ComputeHash(data);
CngNative.BCRYPT_PKCS1_PADDING_INFO bCRYPT_PKCS1_PADDING_INFO = default(CngNative.BCRYPT_PKCS1_PADDING_INFO);
bCRYPT_PKCS1_PADDING_INFO.pszAlgId = hashAlgorithm.Name;
int num;
CngNative.ErrorCode status = CngNative.NCryptSignHashPkcs1(base.KeyHandle, ref bCRYPT_PKCS1_PADDING_INFO, array, array.Length, null, 0, out num, CngNative.AsymmetricPaddingMode.Pkcs1);
CngNative.VerifyStatus(status);
byte[] array2 = new byte[num];
status = CngNative.NCryptSignHashPkcs1(base.KeyHandle, ref bCRYPT_PKCS1_PADDING_INFO, array, array.Length, array2, array2.Length, out num, CngNative.AsymmetricPaddingMode.Pkcs1);
CngNative.VerifyStatus(status);
return(array2);
}
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));
}
