public static ElGamalKey CreatePublic(
ReadOnlySpan <byte> source,
out int publicKeySize)
{
var elgamalParameters = ReadOpenPgpPublicKey(source, out publicKeySize);
return(new ElGamalKey(ElGamal.Create(elgamalParameters)));
}
public static ElGamalKey CreatePrivate(
ReadOnlySpan <byte> password,
ReadOnlySpan <byte> source,
out int bytesRead)
{
var elgamalParameters = ReadOpenPgpPublicKey(source, out bytesRead);
byte[] xArray = new byte[source.Length - bytesRead];
try
{
S2kBasedEncryption.DecryptSecretKey(password, source.Slice(bytesRead), xArray, out int bytesWritten);
elgamalParameters.X = MPInteger.ReadInteger(xArray, out int xConsumed).ToArray();
bytesRead = source.Length;
return(new ElGamalKey(ElGamal.Create(elgamalParameters)));
}
finally
{
CryptographicOperations.ZeroMemory(xArray);
CryptographicOperations.ZeroMemory(elgamalParameters.X);
}
}