Package de.intarsys.tools.authenticate

Class PasswordTools

java.lang.Object
de.intarsys.tools.authenticate.PasswordTools
public class PasswordTools extends Object
A tool class for handling passwords and authentication

  • Constructor Summary

    Constructors
    Constructor
    Description
    PasswordTools()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static char[]
    createRandom(int length)
    Create a random password of length length.
    static byte[]
    decrypt(byte[] bytes)
    Decrypt a byte array which was previously encrypted using encrypt.
    static char[]
    decrypt(String value)
    Decrypt a string which was previously encrypted using encrypt.
    static byte[]
    encrypt(byte[] bytes)
    Encrypt a clear text array of bytes.
    static String
    encrypt(char[] value)
    Encrypt a clear text array of chars.
    static String
    hash(char[] password)
    A one way hash for a clear text password.
    static void
    initialize(byte[] salt, char[] passphrase)
    Initialize the PasswordTools.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • PasswordTools

      public PasswordTools()

  • Method Details

    • createRandom

      public static char[] createRandom(int length)
      Create a random password of length length.
      Parameters:
      length -
      Returns:
      A new random password.

    • decrypt

      public static byte[] decrypt(byte[] bytes)
      Decrypt a byte array which was previously encrypted using encrypt. Provided the same salt and passphrase are used for initialization, this method returns the original unencrypted input.
      Parameters:
      bytes -
      Returns:
      The decrypted representation of bytes

    • decrypt

      public static char[] decrypt(String value)
      Decrypt a string which was previously encrypted using encrypt. Provided the same salt and passphrase are used for initialization, this method returns the original unencrypted input.
      Parameters:
      value -
      Returns:
      The decrypted representation of value

    • encrypt

      public static byte[] encrypt(byte[] bytes)
      Encrypt a clear text array of bytes. The result is the plain encrypted byte array.
      Parameters:
      bytes -
      Returns:
      The encrpyted representation of bytes

    • encrypt

      public static String encrypt(char[] value)
      Encrypt a clear text array of chars. The result is a Base64 encoded string version of the encrypted UTF-8 encoded input bytes.
      Parameters:
      value -
      Returns:
      An encrypted, invertible representation of value

    • hash

      public static String hash(char[] password)
      A one way hash for a clear text password.
      Parameters:
      password -
      Returns:
      A one way hash for a clear text password.

    • initialize

      public static void initialize(byte[] salt, char[] passphrase)
      Initialize the PasswordTools.
      Parameters:
      salt -
      passphrase -