public class Algorithms extends Object
Modifier and Type | Method and Description |
---|---|
static void |
$main(String[] args)
Describe
main method here. |
static String |
bytesToHex(byte[] buff) |
static byte[] |
digest(String id,
String secret,
String alg) |
static String |
generateDialbackKey(String originatingServer,
String receivingServer,
String secret,
String streamID)
Calculates dialback key as decribed in XEP-0185 version
1.0.
|
static String |
hexDigest(String id,
String secret,
String alg)
This method encodes data using digest algorithm described in JEP-0078 documentation.
|
static String |
sha256(String data)
Calculates SHA-256 hash of given data.
|
public static void $main(String[] args) throws Exception
main
method here.args
- a String[]
valueException
public static final String bytesToHex(byte[] buff)
public static final byte[] digest(String id, String secret, String alg) throws NoSuchAlgorithmException
NoSuchAlgorithmException
public static String generateDialbackKey(String originatingServer, String receivingServer, String secret, String streamID)
key = HMAC-SHA256 ( SHA256(Secret), { Receiving Server, ' ', Originating Server, ' ', Stream ID } )
originatingServer
- the hostname of the Originating ServerreceivingServer
- the hostname of the Receiving Serversecret
- a secret known by the Authoritative Server's networkstreamID
- the Stream ID generated by the Receiving Serverpublic static final String hexDigest(String id, String secret, String alg) throws NoSuchAlgorithmException
String
containing digest data which can be compared with data sent by the user to authenticate
him.id
- a String
value of some ID value like session ID to concatenate with secret word.secret
- a String
value of a secret word shared between entites.alg
- a String
value of algorithm name to use for generating diffest message.String
value digest message as defined.NoSuchAlgorithmException
- if an error occurs during encoding digest message.Copyright © 2004–2021 "Tigase, Inc.". All rights reserved.