Package com.exedio.cope.pattern

Interface Hash.Algorithm

All Known Implementing Classes:
MessageDigestAlgorithm
Enclosing class:
Hash
public static interface Hash.Algorithm

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    check(byte[] plainText, byte[] hash)
    Returns whether the given plain text matches the given hash.
    boolean
    compatibleTo(Hash.Algorithm other)
    Returns whether this algorithm can consistently check hash values created by the given algorithm.
    byte[]
    hash(byte[] plainText)
    Returns a hash for the given plain text.
    int
    length()
     
    String
    name()
     

  • Method Details

    • name

      String name()

    • length

      int length()

    • hash

      byte[] hash(byte[] plainText)
      Returns a hash for the given plain text. The result is not required to be deterministic - this means, multiple calls for the same plain text do not have to return the same hash. This is especially true for salted hashes.
      Parameters:
      plainText - the text to be hashed. Is never null.
      Returns:
      the hash of plainText. Must never return null.

    • check

      boolean check(byte[] plainText, byte[] hash)
      Returns whether the given plain text matches the given hash.
      Parameters:
      plainText - the text to be hashed. Is never null.
      hash - the hash of plainText. Is never null.
      Throws:
      IllegalArgumentException - if hash.length!=length().

    • compatibleTo

      boolean compatibleTo(Hash.Algorithm other)
      Returns whether this algorithm can consistently check hash values created by the given algorithm.
      Throws:
      NullPointerException - if other is null