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

Class HMACSHA256KeyFactory

  • public final class HMACSHA256KeyFactory
extends javax.crypto.SecretKeyFactorySpi
    This class builds a secret key for use with the HMACSHA256 algorithm.

    • Constructor Summary

      Constructors 
      Constructor Description
      HMACSHA256KeyFactory()
      Set the HMAC algorithm name and verify the JCE framework.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      protected javax.crypto.SecretKey engineGenerateSecret​(java.security.spec.KeySpec keySpec)
      Generates a HMAC SecretKey object from the provided key specification (key material).
      protected java.security.spec.KeySpec engineGetKeySpec​(javax.crypto.SecretKey key, java.lang.Class keySpec)
      This method is currently unsupported.
      protected javax.crypto.SecretKey engineTranslateKey​(javax.crypto.SecretKey key)
      This method is currently unsupported.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • HMACSHA256KeyFactory

        public HMACSHA256KeyFactory()
        Set the HMAC algorithm name and verify the JCE framework.
        Throws:
        java.lang.SecurityException - if unable to verify the JCE framework.

    • Method Detail

      • engineGenerateSecret

        protected javax.crypto.SecretKey engineGenerateSecret​(java.security.spec.KeySpec keySpec)
                                               throws java.security.spec.InvalidKeySpecException
        Generates a HMAC SecretKey object from the provided key specification (key material).
        Specified by:
        engineGenerateSecret in class javax.crypto.SecretKeyFactorySpi
        Parameters:
        keySpec - specification (key material) of the HMAC secret key
        Returns:
        HMAC secret key
        Throws:
        java.security.spec.InvalidKeySpecException - if the given key specification is inappropriate for this key factory to produce a HMAC secret key.

      • engineGetKeySpec

        protected java.security.spec.KeySpec engineGetKeySpec​(javax.crypto.SecretKey key,
                                                      java.lang.Class keySpec)
        This method is currently unsupported.
        Specified by:
        engineGetKeySpec in class javax.crypto.SecretKeyFactorySpi
        Throws:
        java.lang.UnsupportedOperationException - at all times, since this method is unsupported.

      • engineTranslateKey

        protected javax.crypto.SecretKey engineTranslateKey​(javax.crypto.SecretKey key)
        This method is currently unsupported.
        Specified by:
        engineTranslateKey in class javax.crypto.SecretKeyFactorySpi
        Throws:
        java.lang.UnsupportedOperationException - at all times, since this method is unsupported.