de.gematik.ti.healthcard.control.security

Class KeyDerivationFunction

java.lang.Object

de.gematik.ti.healthcard.control.security.KeyDerivationFunction

public final class KeyDerivationFunction
extends java.lang.Object

This class provides functionality to derive AES-128 keys.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	KeyDerivationFunction.Mode

Method Summary

Modifier and Type	Method and Description
static byte[]	getAES128Key(byte[] sharedSecretK, KeyDerivationFunction.Mode mode) derive AES-128 key

Methods inherited from class java.lang.Object

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

Method Detail

getAES128Key

public static byte[] getAES128Key(byte[] sharedSecretK,
                                  KeyDerivationFunction.Mode mode)

derive AES-128 key

Parameters:

sharedSecretK - byte array with shared secret value.

mode - key derivation for ENC, MAC or derivation from password

Returns:

byte array with AES-128 key