Package org.bouncycastle.openpgp.operator.bc

Class BcAEADUtil

  • public class BcAEADUtil
extends java.lang.Object

    • Constructor Summary

      Constructors 
      Constructor Description
      BcAEADUtil()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static org.bouncycastle.crypto.modes.AEADBlockCipher createAEADCipher​(int encAlgorithm, int aeadAlgorithm)  
      protected static long getChunkLength​(int chunkSize)
      Calculate an actual chunk length from the encoded chunk size.
      protected static byte[] getNonce​(byte[] iv, long chunkIndex)
      Generate a nonce by xor-ing the given iv with the chunk index.
      protected static void xorChunkId​(byte[] nonce, long chunkIndex)
      XOR the byte array with the chunk index in-place.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • BcAEADUtil

        public BcAEADUtil()

    • Method Detail

      • getNonce

        protected static byte[] getNonce​(byte[] iv,
                                 long chunkIndex)
        Generate a nonce by xor-ing the given iv with the chunk index.
        Parameters:
        iv - initialization vector
        chunkIndex - chunk index
        Returns:
        nonce

      • xorChunkId

        protected static void xorChunkId​(byte[] nonce,
                                 long chunkIndex)
        XOR the byte array with the chunk index in-place.
        Parameters:
        nonce - byte array
        chunkIndex - chunk index

      • getChunkLength

        protected static long getChunkLength​(int chunkSize)
        Calculate an actual chunk length from the encoded chunk size.
        Parameters:
        chunkSize - encoded chunk size
        Returns:
        decoded length

      • createAEADCipher

        public static org.bouncycastle.crypto.modes.AEADBlockCipher createAEADCipher​(int encAlgorithm,
                                                                             int aeadAlgorithm)
                                                                      throws PGPException
        Throws:
        PGPException