org.whispersystems.libsignal.protocol

Class SignalMessage

java.lang.Object

org.whispersystems.libsignal.protocol.SignalMessage

All Implemented Interfaces:

CiphertextMessage

public class SignalMessage
extends java.lang.Object
implements CiphertextMessage

Field Summary

Fields inherited from interface org.whispersystems.libsignal.protocol.CiphertextMessage

CURRENT_VERSION, ENCRYPTED_MESSAGE_OVERHEAD, PREKEY_TYPE, SENDERKEY_DISTRIBUTION_TYPE, SENDERKEY_TYPE, WHISPER_TYPE

Constructor Summary

Constructors

Constructor and Description
SignalMessage(byte[] serialized)
SignalMessage(int messageVersion, javax.crypto.spec.SecretKeySpec macKey, ECPublicKey senderRatchetKey, int counter, int previousCounter, byte[] ciphertext, IdentityKey senderIdentityKey, IdentityKey receiverIdentityKey)

Method Summary

Modifier and Type	Method and Description
byte[]	getBody()
int	getCounter()
int	getMessageVersion()
ECPublicKey	getSenderRatchetKey()
int	getType()
static boolean	isLegacy(byte[] message)
byte[]	serialize()
void	verifyMac(IdentityKey senderIdentityKey, IdentityKey receiverIdentityKey, javax.crypto.spec.SecretKeySpec macKey)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SignalMessage

public SignalMessage(byte[] serialized)
              throws InvalidMessageException,
                     LegacyMessageException

Throws:

InvalidMessageException

LegacyMessageException

SignalMessage

public SignalMessage(int messageVersion,
                     javax.crypto.spec.SecretKeySpec macKey,
                     ECPublicKey senderRatchetKey,
                     int counter,
                     int previousCounter,
                     byte[] ciphertext,
                     IdentityKey senderIdentityKey,
                     IdentityKey receiverIdentityKey)

Method Detail

getSenderRatchetKey

public ECPublicKey getSenderRatchetKey()

getMessageVersion

public int getMessageVersion()

getCounter

public int getCounter()

getBody

public byte[] getBody()

verifyMac

public void verifyMac(IdentityKey senderIdentityKey,
                      IdentityKey receiverIdentityKey,
                      javax.crypto.spec.SecretKeySpec macKey)
               throws InvalidMessageException

Throws:

InvalidMessageException

serialize

public byte[] serialize()

Specified by:

serialize in interface CiphertextMessage

getType

public int getType()

Specified by:

getType in interface CiphertextMessage

isLegacy

public static boolean isLegacy(byte[] message)