org.whispersystems.libsignal.kdf

Class HKDF

java.lang.Object

org.whispersystems.libsignal.kdf.HKDF

Direct Known Subclasses:

HKDFv2, HKDFv3

public abstract class HKDF
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
HKDF()

Method Summary

Modifier and Type	Method and Description
static HKDF	createFor(int messageVersion)
byte[]	deriveSecrets(byte[] inputKeyMaterial, byte[] salt, byte[] info, int outputLength)
byte[]	deriveSecrets(byte[] inputKeyMaterial, byte[] info, int outputLength)
protected abstract int	getIterationStartOffset()

Methods inherited from class java.lang.Object

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

Constructor Detail

HKDF

public HKDF()

Method Detail

createFor

public static HKDF createFor(int messageVersion)

deriveSecrets

public byte[] deriveSecrets(byte[] inputKeyMaterial,
                            byte[] info,
                            int outputLength)

deriveSecrets

public byte[] deriveSecrets(byte[] inputKeyMaterial,
                            byte[] salt,
                            byte[] info,
                            int outputLength)

getIterationStartOffset

protected abstract int getIterationStartOffset()