Module ibm.crypto.hdwrcca
Package com.ibm.crypto.hdwrCCA.provider

Class PBM

java.lang.Object
javax.crypto.MacSpi
com.ibm.crypto.hdwrCCA.provider.PBM
All Implemented Interfaces:
Cloneable
public final class PBM extends MacSpi implements Cloneable
This is an implementation of the HMAC-SHA1 algorithm.

  • Constructor Summary

    Constructors
    Constructor
    Description
    PBM()
    Empty constructor Verify the JCE framework in the constructor.

  • Method Summary

    Modifier and Type
    Method
    Description
    protected byte[]
    engineDoFinal()
    Completes the PBM computation and resets the PBM for further use, maintaining the secret key that the PBM was initialized with.
    protected int
    engineGetMacLength()
    Returns the length of the PBM in bytes.
    protected void
    engineInit(Key key, AlgorithmParameterSpec params)
    Initializes the PBM with the given secret key and algorithm parameters.
    protected void
    engineReset()
    Resets the PBM for further use, maintaining the secret key that the PBM was initialized with.
    protected void
    engineUpdate(byte input)
    Processes the given byte.
    protected void
    engineUpdate(byte[] input, int offset, int len)
    Processes the first len bytes in input, starting at offset.

    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 Details

  • Method Details

    • engineGetMacLength

      protected int engineGetMacLength()
      Returns the length of the PBM in bytes.
      Specified by:
      engineGetMacLength in class MacSpi
      Returns:
      the PBM length in bytes.

    • engineInit

      protected void engineInit(Key key, AlgorithmParameterSpec params) throws InvalidKeyException, InvalidAlgorithmParameterException
      Initializes the PBM with the given secret key and algorithm parameters.
      Specified by:
      engineInit in class MacSpi
      Parameters:
      key - the secret key.
      params - the algorithm parameters.
      Throws:
      InvalidKeyException - if the given key is inappropriate for initializing this MAC.
      InvalidAlgorithmParameterException - if the given algorithm parameters are inappropriate for this MAC.

    • engineUpdate

      protected void engineUpdate(byte input)
      Processes the given byte.
      Specified by:
      engineUpdate in class MacSpi
      Parameters:
      input - the input byte to be processed.

    • engineUpdate

      protected void engineUpdate(byte[] input, int offset, int len)
      Processes the first len bytes in input, starting at offset.
      Specified by:
      engineUpdate in class MacSpi
      Parameters:
      input - the input buffer.
      offset - the offset in input where the input starts.
      len - the number of bytes to process.

    • engineDoFinal

      protected byte[] engineDoFinal()
      Completes the PBM computation and resets the PBM for further use, maintaining the secret key that the PBM was initialized with.
      Specified by:
      engineDoFinal in class MacSpi
      Returns:
      the PBM result.

    • engineReset

      protected void engineReset()
      Resets the PBM for further use, maintaining the secret key that the PBM was initialized with.
      Specified by:
      engineReset in class MacSpi