Class MGF1BytesGenerator

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private Digest digest  
      private int hLen  
      private byte[] seed  
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int generateBytes​(byte[] out, int outOff, int len)
      fill len bytes of the output buffer with bytes generated from the derivation function.
      Digest getDigest()
      return the underlying digest.
      void init​(DerivationParameters param)  
      private void ItoOSP​(int i, byte[] sp)
      int to octet string.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • digest

        private Digest digest
      • seed

        private byte[] seed
      • hLen

        private int hLen
    • Constructor Detail

      • MGF1BytesGenerator

        public MGF1BytesGenerator​(Digest digest)
        Parameters:
        digest - the digest to be used as the source of generated bytes
    • Method Detail

      • ItoOSP

        private void ItoOSP​(int i,
                            byte[] sp)
        int to octet string.
      • generateBytes

        public int generateBytes​(byte[] out,
                                 int outOff,
                                 int len)
                          throws DataLengthException,
                                 java.lang.IllegalArgumentException
        fill len bytes of the output buffer with bytes generated from the derivation function.
        Specified by:
        generateBytes in interface DerivationFunction
        Throws:
        java.lang.IllegalArgumentException - if the size of the request will cause an overflow.
        DataLengthException - if the out buffer is too small.