internal static extern ErrorCode NCryptVerifySignature(SafeNCryptKeyHandle hKey,
[In] ref BCryptNative.BCRYPT_PKCS1_PADDING_INFO pPaddingInfo,
[In, MarshalAs(UnmanagedType.LPArray)] byte[] pbHashValue,
int cbHashValue,
[In, MarshalAs(UnmanagedType.LPArray)] byte[] pbSignature,
int cbSignature,
AsymmetricPaddingMode dwFlags);
internal static extern ErrorCode NCryptEncrypt(SafeNCryptKeyHandle hKey,
[In, MarshalAs(UnmanagedType.LPArray)] byte[] pbInput,
int cbInput,
[In] ref BCryptNative.BCRYPT_PKCS1_PADDING_INFO pvPadding,
[Out, MarshalAs(UnmanagedType.LPArray)] byte[] pbOutput,
int cbOutput,
[Out] out int pcbResult,
AsymmetricPaddingMode dwFlags);
internal static byte[] EncryptDataPkcs1(SafeNCryptKeyHandle key, byte[] data)
{
BCryptNative.BCRYPT_PKCS1_PADDING_INFO pkcs1Info = new BCryptNative.BCRYPT_PKCS1_PADDING_INFO();
return(EncryptData(key,
data,
ref pkcs1Info,
AsymmetricPaddingMode.Pkcs1,
UnsafeNativeMethods.NCryptEncrypt));
}
public static byte[] SignHashPkcs1(SafeNCryptKeyHandle key,
byte[] hash,
string hashAlgorithm)
{
Debug.Assert(key != null, "key != null");
Debug.Assert(!key.IsClosed && !key.IsInvalid, "!key.IsClosed && !key.IsInvalid");
Debug.Assert(hash != null, "hash != null");
Debug.Assert(!String.IsNullOrEmpty(hashAlgorithm), "!String.IsNullOrEmpty(hashAlgorithm)");
BCryptNative.BCRYPT_PKCS1_PADDING_INFO pkcs1Info = new BCryptNative.BCRYPT_PKCS1_PADDING_INFO();
pkcs1Info.pszAlgId = hashAlgorithm;
return(SignHash(key,
hash,
ref pkcs1Info,
AsymmetricPaddingMode.Pkcs1,
UnsafeNativeMethods.NCryptSignHash));
}
internal static bool VerifySignaturePkcs1(SafeNCryptKeyHandle key,
byte[] hash,
string hashAlgorithm,
byte[] signature)
{
Debug.Assert(key != null, "key != null");
Debug.Assert(!key.IsClosed && !key.IsInvalid, "!key.IsClosed && !key.IsInvalid");
Debug.Assert(hash != null, "hash != null");
Debug.Assert(!String.IsNullOrEmpty(hashAlgorithm), "!String.IsNullOrEmpty(hashAlgorithm)");
Debug.Assert(signature != null, "signature != null");
BCryptNative.BCRYPT_PKCS1_PADDING_INFO pkcs1Info = new BCryptNative.BCRYPT_PKCS1_PADDING_INFO();
pkcs1Info.pszAlgId = hashAlgorithm;
return(VerifySignature(key,
hash,
signature,
ref pkcs1Info,
AsymmetricPaddingMode.Pkcs1,
UnsafeNativeMethods.NCryptVerifySignature));
}
