Package org.bouncycastle.crypto.paddings

Class ISO7816d4Padding

  • All Implemented Interfaces:
    BlockCipherPadding
    public class ISO7816d4Padding
extends java.lang.Object
implements BlockCipherPadding
    A padder that adds the padding according to the scheme referenced in ISO 7814-4 - scheme 2 from ISO 9797-1. The first byte is 0x80, rest is 0x00

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int addPadding​(byte[] in, int inOff)
      add the pad bytes to the passed in block, returning the number of bytes added.
      java.lang.String getPaddingName()
      Return the name of the algorithm the padder implements.
      void init​(java.security.SecureRandom random)
      Initialise the padder.
      int padCount​(byte[] in)
      return the number of pad bytes present in the block.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • ISO7816d4Padding

        public ISO7816d4Padding()

    • Method Detail

      • init

        public void init​(java.security.SecureRandom random)
          throws java.lang.IllegalArgumentException
        Initialise the padder.
        Specified by:
        init in interface BlockCipherPadding
        Parameters:
        random - - a SecureRandom if available.
        Throws:
        java.lang.IllegalArgumentException

      • getPaddingName

        public java.lang.String getPaddingName()
        Return the name of the algorithm the padder implements.
        Specified by:
        getPaddingName in interface BlockCipherPadding
        Returns:
        the name of the algorithm the padder implements.

      • addPadding

        public int addPadding​(byte[] in,
                      int inOff)
        add the pad bytes to the passed in block, returning the number of bytes added.
        Specified by:
        addPadding in interface BlockCipherPadding