Package com.academy.stratum.crypto.api.encryption.algorithms.mac.hmac

Class HMAC

java.lang.Object

com.academy.stratum.crypto.api.encryption.algorithms.mac.hmac.HMAC

All Implemented Interfaces:

MessageAuthenticationCodeAlgorithm, java.io.Serializable

public class HMAC
extends java.lang.Object
implements MessageAuthenticationCodeAlgorithm, java.io.Serializable

Hash-based message authentication code implementation

Author:

Ruslan Nazirov

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
HMAC()

Method Summary

Modifier and Type	Method	Description
byte[]	generateMAC(byte[] key, byte[] data)	MAC generation
boolean	verifyMAC(byte[] key, byte[] mac, byte[] data)	MAC verification

Methods inherited from class java.lang.Object

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

Constructor Detail

HMAC

public HMAC()

Method Detail

generateMAC

public byte[] generateMAC(byte[] key,
                          byte[] data)
                   throws java.lang.Exception

Description copied from interface: MessageAuthenticationCodeAlgorithm

MAC generation

Specified by:

generateMAC in interface MessageAuthenticationCodeAlgorithm

Parameters:

key - MAC secret key

data - Data, which needed to be secure with MAC

Returns:

mac Message authentication code

Throws:

java.lang.Exception - MAC generation error

verifyMAC

public boolean verifyMAC(byte[] key,
                         byte[] mac,
                         byte[] data)
                  throws java.lang.Exception

Description copied from interface: MessageAuthenticationCodeAlgorithm

MAC verification

Specified by:

verifyMAC in interface MessageAuthenticationCodeAlgorithm

Parameters:

key - MAC secret key

mac - Message authentication code

data - Data to check

Returns:

result Check result

Throws:

java.lang.Exception - MAC check error