Package generic.hash

Class AbstractMessageDigest

java.lang.Object
generic.hash.AbstractMessageDigest
All Implemented Interfaces:
MessageDigest
Direct Known Subclasses:
FNV1a32MessageDigest, FNV1a64MessageDigest
public abstract class AbstractMessageDigest extends Object implements MessageDigest

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    final String
    algorithm
     
    final int
    digestLength
     

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    AbstractMessageDigest(String algorithm, int digestLength)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    final byte[]
    digest()
    Completes the hash computation by performing final operations such as padding.
    final String
    getAlgorithm()
    Returns a string that identifies the algorithm, independent of implementation details.
    final int
    getDigestLength()
    Returns the length of the digest in bytes.
    final void
    update(byte[] input)
    Updates the digest using the specified array of bytes.
    void
    update(byte[] input, int offset, int len)
    You REALLY want to override this method.
    void
    update(byte[] input, int offset, int len, TaskMonitor monitor)
    You REALLY want to override this method too.
    final void
    update(byte[] input, TaskMonitor monitor)
    Updates the digest using the specified array of bytes.
    void
    update(int input)
    Updates the digest using the specified int.
    void
    update(long input)
    Updates the digest using the specified long.
    void
    update(short input)
    Updates the digest using the specified short.

    Methods inherited from class java.lang.Object

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

    Methods inherited from interface generic.hash.MessageDigest

    digest, digestLong, reset, update

  • Field Details

    • algorithm

      public final String algorithm

    • digestLength

      public final int digestLength

  • Constructor Details

    • AbstractMessageDigest

      protected AbstractMessageDigest(String algorithm, int digestLength)

  • Method Details

    • getAlgorithm

      public final String getAlgorithm()
      Description copied from interface: MessageDigest
      Returns a string that identifies the algorithm, independent of implementation details.
      Specified by:
      getAlgorithm in interface MessageDigest
      Returns:
      the name of the algorithm

    • getDigestLength

      public final int getDigestLength()
      Description copied from interface: MessageDigest
      Returns the length of the digest in bytes.
      Specified by:
      getDigestLength in interface MessageDigest
      Returns:
      the digest length in bytes

    • digest

      public final byte[] digest()
      Description copied from interface: MessageDigest
      Completes the hash computation by performing final operations such as padding. The digest is reset after this call is made.
      Specified by:
      digest in interface MessageDigest
      Returns:
      the array of bytes for the resulting hash value

    • update

      public final void update(byte[] input, TaskMonitor monitor) throws CancelledException
      Description copied from interface: MessageDigest
      Updates the digest using the specified array of bytes.
      Specified by:
      update in interface MessageDigest
      Parameters:
      input - the array of bytes
      monitor - the monitor to check during loops
      Throws:
      CancelledException

    • update

      public final void update(byte[] input)
      Description copied from interface: MessageDigest
      Updates the digest using the specified array of bytes. Do not use a monitor
      Specified by:
      update in interface MessageDigest
      Parameters:
      input - the array of bytes

    • update

      public void update(short input)
      Description copied from interface: MessageDigest
      Updates the digest using the specified short.
      Specified by:
      update in interface MessageDigest
      Parameters:
      input - the short with which to update the digest (big endian)

    • update

      public void update(int input)
      Description copied from interface: MessageDigest
      Updates the digest using the specified int.
      Specified by:
      update in interface MessageDigest
      Parameters:
      input - the int with which to update the digest (big endian)

    • update

      public void update(long input)
      Description copied from interface: MessageDigest
      Updates the digest using the specified long.
      Specified by:
      update in interface MessageDigest
      Parameters:
      input - the long with which to update the digest (big endian)

    • update

      public void update(byte[] input, int offset, int len)
      You REALLY want to override this method.
      Specified by:
      update in interface MessageDigest
      Parameters:
      input - the array of bytes
      offset - the offset to start from in the array of bytes
      len - the number of bytes to use, starting at offset

    • update

      public void update(byte[] input, int offset, int len, TaskMonitor monitor) throws CancelledException
      You REALLY want to override this method too.
      Specified by:
      update in interface MessageDigest
      Parameters:
      input - the array of bytes
      offset - the offset to start from in the array of bytes
      len - the number of bytes to use, starting at offset
      monitor - the monitor to check during loops
      Throws:
      CancelledException