com.entrust.toolkit.security.crypto.mac

Class TripleDesCMac

java.lang.Object

javax.crypto.MacSpi

com.entrust.toolkit.security.crypto.mac.CMac

com.entrust.toolkit.security.crypto.mac.TripleDesCMac

public final class TripleDesCMac
extends CMac

A software based implementation of the CMAC message authentication code algorithm that uses DESede as the underlying symmetric cipher.

By default, this algorithm produces a 64-bit MAC, however, the MAC size can be configured via algorithm parameters; the allowed MAC sizes are 16 bits to 64 bits, in 8 bit increments. The following algorithm parameter specifications are supported:

• MacParameterSpec

An instance of this algorithm can be obtained using the Java Cryptography Architecture (JCA), by requesting a 'DESedeCMac' MAC from the Entrust cryptographic service provider. This can be done using the following call:

Mac.getInstance("DESedeCMac", "Entrust");

FIPS 140-2:

This class is part of the Toolkit's FIPS 140-2 cryptographic module and contains APIs that are considered part of the logical interface to the Toolkit's FIPS 140-2 cryptographic module; refer to the API documentation for further details

Since:

7.2

See Also:

CMac

Constructor Summary

Constructors

Constructor and Description
TripleDesCMac() The constructor; creates a new instance of the DESedeCMac MAC algorithm.

Method Summary

Methods inherited from class com.entrust.toolkit.security.crypto.mac.CMac

engineDoFinal, engineGetMacLength, engineInit, engineReset, engineUpdate, engineUpdate

Methods inherited from class javax.crypto.MacSpi

clone, engineUpdate

Methods inherited from class java.lang.Object

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

Constructor Detail

TripleDesCMac

public TripleDesCMac()
              throws java.security.NoSuchAlgorithmException,
                     javax.crypto.NoSuchPaddingException

The constructor; creates a new instance of the DESedeCMac MAC algorithm.

Applications should never use this constructor, instead the MAC algorithm should be requested from the appropriate JCA/JCE cryptographic service provider as follows: Mac.getInstance("DESedeCMac", "Entrust").

FIPS 140-2:

FIPS Service: Modify Object

This API is part of the logical interface to the Toolkit's FIPS 140-2 cryptographic module; use of this API causes the caller to assume the FIPS 140-2 user role and accesses the following FIPS 140-2 logical interfaces:

• control input interface (API call)
• status output interface (exceptions)

Throws:

java.security.NoSuchAlgorithmException

javax.crypto.NoSuchPaddingException