public byte[] Sign([ReadOnlyArray] byte[] securedInput, object key)
{
var publicKey = Ensure.Type <ICryptographicKey>(key, "RsaUsingSha expects key to be of type 'ICryptographicKey'");
//reattach key to alg provider
byte[] keyBlob = publicKey.Export(CryptographicPrivateKeyBlobType.Pkcs1RsaPrivateKey);
ICryptographicKey cKey = AlgProvider.ImportKeyPair(keyBlob, CryptographicPrivateKeyBlobType.Pkcs1RsaPrivateKey);
return(WinRTCrypto.CryptographicEngine.Sign(cKey, securedInput));
}
public byte[] Sign([ReadOnlyArray] byte[] securedInput, object key)
{
var publicKey = Ensure.Type <CryptographicKey>(key, "RsaPssUsingSha expects key to be of type 'CryptographicKey'");
IBuffer msg = CryptographicBuffer.CreateFromByteArray(securedInput);
//reattach key to alg provider
IBuffer keyBlob = publicKey.Export(CryptographicPrivateKeyBlobType.BCryptPrivateKey);
CryptographicKey cKey = AlgProvider.ImportKeyPair(keyBlob, CryptographicPrivateKeyBlobType.BCryptPrivateKey);
return(Buffer.ToBytes(CryptographicEngine.Sign(cKey, msg)));
}
public byte[] Unwrap([ReadOnlyArray] byte[] encryptedCek, object key, uint cekSizeBits, JsonObject header)
{
var privateKey = Ensure.Type <CryptographicKey>(key, "RsaUsingSha expects key to be of type 'CryptographicKey'");
IBuffer msg = CryptographicBuffer.CreateFromByteArray(encryptedCek);
//reattach key to alg provider
IBuffer keyBlob = privateKey.Export(CryptographicPrivateKeyBlobType.BCryptPrivateKey);
CryptographicKey cKey = AlgProvider.ImportKeyPair(keyBlob, CryptographicPrivateKeyBlobType.BCryptPrivateKey);
return(Buffer.ToBytes(CryptographicEngine.Decrypt(cKey, msg, null)));
}