toolbox.security.helper
Class MessageDigestHelper

java.lang.Object
  toolbox.security.helper.MessageDigestHelper

public class MessageDigestHelper
extends java.lang.Object

Helper class to perform secure one-way hash operations on arbitrary text values using the java.security.MessageDigest class.

Constructor Summary

MessageDigestHelper()
Default constructor

Method Summary

java.lang.String	digestToBase64(java.lang.String message, java.lang.String algorithm) Perform a digest on the given string and return a Base64 representation.
java.lang.String	digestToBase64(java.lang.String message, java.lang.String algorithm, java.lang.String encoding) Perform a digest on the given string and return a Base64 representation.
java.lang.String	digestToHex(java.lang.String message, java.lang.String algorithm) Perform a digest on the given string and return a hexadecimal representation.
java.lang.String	digestToHex(java.lang.String message, java.lang.String algorithm, java.lang.String encoding) Perform a digest on the given string and return a hexadecimal representation.

Methods inherited from class java.lang.Object

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

Constructor Detail

MessageDigestHelper

public MessageDigestHelper()

Default constructor

Method Detail

digestToHex

public java.lang.String digestToHex(java.lang.String message,
                                    java.lang.String algorithm,
                                    java.lang.String encoding)
                             throws java.security.NoSuchAlgorithmException,
                                    java.io.UnsupportedEncodingException

Perform a digest on the given string and return a hexadecimal representation.

Parameters:

message - String containing the data to perform the digest on.

algorithm - String indicating which digest algorithm to use.

encoding - String containing a valid charset name.

Returns:

String containing a hexadecimal representation of the digest.

Throws:

java.security.NoSuchAlgorithmException

java.io.UnsupportedEncodingException

digestToHex

public java.lang.String digestToHex(java.lang.String message,
                                    java.lang.String algorithm)
                             throws java.security.NoSuchAlgorithmException,
                                    java.io.UnsupportedEncodingException

Perform a digest on the given string and return a hexadecimal representation.

Parameters:

message - String containing the data to perform the digest on.

algorithm - String indicating which digest algorithm to use.

Returns:

String containing a hexadecimal representation of the digest.

Throws:

java.security.NoSuchAlgorithmException

java.io.UnsupportedEncodingException

digestToBase64

public java.lang.String digestToBase64(java.lang.String message,
                                       java.lang.String algorithm,
                                       java.lang.String encoding)
                                throws java.security.NoSuchAlgorithmException,
                                       java.io.UnsupportedEncodingException

Perform a digest on the given string and return a Base64 representation.

Parameters:

message - String containing the data to perform the digest on.

algorithm - String indicating which digest algorithm to use.

encoding - String containing a valid charset name.

Returns:

String containing a Base64 representation of the digest.

Throws:

java.security.NoSuchAlgorithmException

java.io.UnsupportedEncodingException

digestToBase64

public java.lang.String digestToBase64(java.lang.String message,
                                       java.lang.String algorithm)
                                throws java.security.NoSuchAlgorithmException,
                                       java.io.UnsupportedEncodingException

Perform a digest on the given string and return a Base64 representation.

Parameters:

message - String containing the data to perform the digest on.

algorithm - String indicating which digest algorithm to use.

Returns:

String containing a Base64 representation of the digest.

Throws:

java.security.NoSuchAlgorithmException

java.io.UnsupportedEncodingException