Package org.omnifaces.utils.security

Class MessageDigests

java.lang.Object

org.omnifaces.utils.security.MessageDigests

public final class MessageDigests
extends Object

Method Summary

Modifier and Type	Method	Description
static byte[]	digest(byte[] message, byte[] salt, String algorithm)
static byte[]	digest(byte[] message, String algorithm)
static byte[]	digest(String message, byte[] salt, String algorithm)
static byte[]	digest(String message, String algorithm)	Calculate a message digest over a given string using the specified algorithm.
static byte[]	digest(String message, Charset charset, byte[] salt, String algorithm)
static byte[]	digest(String message, Charset charset, String algorithm)
static MessageDigest	getMessageDigestInstance(String algorithm)	Returns a MessageDigest instance that implements the specified digest algorithm.

Methods inherited from class java.lang.Object

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

Method Detail

getMessageDigestInstance

public static MessageDigest getMessageDigestInstance(String algorithm)
                                              throws UncheckedNoSuchAlgorithmException

Returns a MessageDigest instance that implements the specified digest algorithm.

This method calls MessageDigest.getInstance(String), but wraps any potential NoSuchAlgorithmExceptions in a UncheckedNoSuchAlgorithmException as this is an unrecoverable problem in most cases.

Parameters:

algorithm - the name of the algorithm to use

Returns:

a MessageDigest instance that implements the specified algorithm

Throws:

UncheckedNoSuchAlgorithmException - if no implementation of the given algorithm is found

digest

public static byte[] digest(String message,
                            String algorithm)
                     throws UncheckedNoSuchAlgorithmException

Calculate a message digest over a given string using the specified algorithm. This method will use UTF_8 encoding.

Parameters:

message - the message to calculate the digest over

algorithm - the name of the algorithm

Returns:

a byte array containing the message digest

Throws:

UncheckedNoSuchAlgorithmException - if no implementation of the given algorithm could be found

digest

public static byte[] digest(String message,
                            Charset charset,
                            String algorithm)
                     throws UncheckedNoSuchAlgorithmException

Throws:

UncheckedNoSuchAlgorithmException

digest

public static byte[] digest(String message,
                            byte[] salt,
                            String algorithm)
                     throws UncheckedNoSuchAlgorithmException

Throws:

UncheckedNoSuchAlgorithmException

digest

public static byte[] digest(String message,
                            Charset charset,
                            byte[] salt,
                            String algorithm)
                     throws UncheckedNoSuchAlgorithmException

Throws:

UncheckedNoSuchAlgorithmException

digest

public static byte[] digest(byte[] message,
                            String algorithm)
                     throws UncheckedNoSuchAlgorithmException

Throws:

UncheckedNoSuchAlgorithmException

digest

public static byte[] digest(byte[] message,
                            byte[] salt,
                            String algorithm)
                     throws UncheckedNoSuchAlgorithmException

Throws:

UncheckedNoSuchAlgorithmException