CMAC

java.lang.Object

org.apache.sshd.common.mac.CMAC

All Implemented Interfaces:: AlgorithmNameProvider, Mac, MacInformation

public class CMAC extends Object implements Mac

Field Summary

Fields

Modifier and Type

Field

Description

private org.bouncycastle.crypto.engines.SM4Engine

engine

private byte[]

initkey

private byte[]

iv

private static final int

KEY_LENGTH

private org.bouncycastle.crypto.macs.CBCBlockCipherMac

mac

private org.bouncycastle.crypto.CipherParameters

params
Constructor Summary

Constructors

Constructor

Description

CMAC()
Method Summary

Modifier and Type

Method

Description

void

doFinal(byte[] buf, int offset)

String

getAlgorithm()

int

getBlockSize()

int

getDefaultBlockSize()

void

init(byte[] key)

void

update(byte[] buf, int start, int len)

void

updateUInt(long foo)

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.sshd.common.mac.Mac
doFinal, doFinal, update

Methods inherited from interface org.apache.sshd.common.mac.MacInformation
isEncryptThenMac

Field Details
- engine
  
  private org.bouncycastle.crypto.engines.SM4Engine engine
- mac
  
  private org.bouncycastle.crypto.macs.CBCBlockCipherMac mac
- params
  
  private org.bouncycastle.crypto.CipherParameters params
- KEY_LENGTH
  
  private static final int KEY_LENGTH
  See Also:
  
  Constant Field Values
- initkey
  
  private byte[] initkey
- iv
  
  private byte[] iv
Constructor Details
- CMAC
  
  public CMAC()
Method Details
- init
  
  public void init(byte[] key) throws Exception
  
  Specified by:
  
  init in interface Mac
  
  Throws:
  
  Exception
- update
  
  public void update(byte[] buf, int start, int len)
  
  Specified by:
  
  update in interface Mac
- updateUInt
  
  public void updateUInt(long foo)
  
  Specified by:
  
  updateUInt in interface Mac
- doFinal
  
  public void doFinal(byte[] buf, int offset) throws Exception
  
  Specified by:
  
  doFinal in interface Mac
  
  Throws:
  
  Exception
- getBlockSize
  
  public int getBlockSize()
  
  Specified by:
  
  getBlockSize in interface MacInformation
  
  Returns:
  
  MAC output block size in bytes - may be less than the default - e.g., MD5-96
- getDefaultBlockSize
  
  public int getDefaultBlockSize()
  
  Specified by:
  
  getDefaultBlockSize in interface MacInformation
  
  Returns:
  
  The "natural" MAC block size in bytes
- getAlgorithm
  
  public String getAlgorithm()
  
  Specified by:
  
  getAlgorithm in interface AlgorithmNameProvider