private static byte[] RevokePublicKey(PgpSecretKey sKey, char[] sPass, PgpPublicKey keyToSign, bool armour)
{
Stream os = new MemoryStream();
if (armour)
{
os = new ArmoredOutputStream(os);
}
PgpPrivateKey privKey = sKey.ExtractPrivateKey(sPass);
PgpSignatureGenerator sGen = new PgpSignatureGenerator(sKey.PublicKey.Algorithm, HashAlgorithmTag.Sha1);
sGen.InitSign(PgpSignature.KeyRevocation, privKey);
BcpgOutputStream bOut = new BcpgOutputStream(os);
sGen.GenerateOnePassVersion(false).Encode(bOut);
PgpSignatureSubpacketGenerator spGen = new PgpSignatureSubpacketGenerator();
spGen.SetRevocable(false, true);
DateTime baseDate = new DateTime(1970, 1, 1);
TimeSpan tSpan = DateTime.UtcNow - baseDate;
spGen.SetSignatureExpirationTime(false, tSpan.Seconds);
PgpSignatureSubpacketVector packetVector = spGen.Generate();
sGen.SetHashedSubpackets(packetVector);
bOut.Flush();
if (armour)
{
os.Close();
}
return(PgpPublicKey.AddCertification(keyToSign, sGen.Generate()).GetEncoded());
}
