private byte[] DerEncode(byte[] hash)
{
if (algId == null)
{
// For raw RSA, the DigestInfo must be prepared externally
return hash;
}
DigestInfo dInfo = new DigestInfo(algId, hash);
return dInfo.GetDerEncoded();
}
/// <summary>
/// Creates PKCS#1 DigestInfo
/// </summary>
/// <param name="hash">Hash value</param>
/// <param name="hashOid">Hash algorithm OID</param>
/// <returns>DER encoded PKCS#1 DigestInfo</returns>
private static byte[] CreateDigestInfo(byte[] hash, string hashOid)
{
DerObjectIdentifier derObjectIdentifier = new DerObjectIdentifier(hashOid);
AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(derObjectIdentifier, null);
DigestInfo digestInfo = new DigestInfo(algorithmIdentifier, hash);
return digestInfo.GetDerEncoded();
}
private byte[] DerEncode(
byte[] hash)
{
DigestInfo dInfo = new DigestInfo(algId, hash);
return dInfo.GetDerEncoded();
}
/// <exception cref="Sharpen.NoSuchAlgorithmException"></exception>
public override byte[] EncryptDigest(byte[] digestValue, DigestAlgorithm digestAlgo
, IDssPrivateKeyEntry keyEntry)
{
try
{
DigestInfo digestInfo = new DigestInfo(digestAlgo.GetAlgorithmIdentifier(), digestValue
);
//Sharpen.Cipher cipher = Sharpen.Cipher.GetInstance(keyEntry.GetSignatureAlgorithm
// ().GetPadding());
IBufferedCipher cipher = CipherUtilities.GetCipher(keyEntry.GetSignatureAlgorithm
().GetPadding());
//cipher.Init(Sharpen.Cipher.ENCRYPT_MODE, ((KSPrivateKeyEntry)keyEntry).GetPrivateKey
// ());
cipher.Init(true, ((KSPrivateKeyEntry)keyEntry).PrivateKey);
return cipher.DoFinal(digestInfo.GetDerEncoded());
}
/*catch (NoSuchPaddingException e)
{
throw new RuntimeException(e);
}*/
catch (InvalidKeyException e)
{
throw new RuntimeException(e);
}
/*catch (IllegalBlockSizeException e)
{
throw new RuntimeException(e);
}
catch (BadPaddingException)
{
// More likely the password is not good.
throw new BadPasswordException(BadPasswordException.MSG.PKCS12_BAD_PASSWORD);
}*/
}
