public override void Decrypt(KeyTable keytab)
{
var key = keytab.GetKey(Token);
var decrypted = Decryptor.Decrypt(
Token.Ticket.EncPart.Cipher,
key.WithPrincipalName(
token.Ticket.SName
),
KeyUsage.KU_TICKET
);
DecodeTicket(decrypted);
}
public static ReadOnlyMemory <byte> GenerateFile(
string password,
Guid saltGuid,
KrbPrincipalName name,
EncryptionType etype = EncryptionType.AES256_CTS_HMAC_SHA1_96
)
{
var kerbKey = DeriveFromKeyId(password, saltGuid, name, etype);
using (var stream = new MemoryStream())
using (var writer = new BinaryWriter(stream))
{
var keytab = new KeyTable(kerbKey);
keytab.Write(writer);
return(stream.ToArray());
}
}
public override void Decrypt(KeyTable keytab)
{
SName = token.Ticket.SName;
var ciphertext = token.Ticket.EncPart.Cipher;
var key = keytab.GetKey(token);
var kerbKey = key.GetKey(MD4Encryptor);
var decryptedTicket = Decrypt(kerbKey, ciphertext, KeyUsage.KU_TICKET);
Ticket = new EncTicketPart().Decode(new Asn1Element(decryptedTicket));
var decryptedAuthenticator = Decrypt(
Ticket.Key.RawKey,
token.Authenticator.Cipher,
KeyUsage.KU_AP_REQ_AUTHENTICATOR
);
Authenticator = new Authenticator().Decode(new Asn1Element(decryptedAuthenticator));
}
public virtual void Decrypt(KeyTable keytab)
{
throw new NotSupportedException();
}
public abstract void Decrypt(KeyTable keytab);
