Package org.apache.tomcat.util.security

Class ConcurrentMessageDigest

java.lang.Object

org.apache.tomcat.util.security.ConcurrentMessageDigest

public class ConcurrentMessageDigest
extends Object

A thread safe wrapper around MessageDigest that does not make use of ThreadLocal and - broadly - only creates enough MessageDigest objects to satisfy the concurrency requirements.

Method Summary

Modifier and Type	Method	Description
static byte[]	digest(String algorithm, byte[]... input)
static byte[]	digest(String algorithm, int iterations, byte[]... input)
static byte[]	digestMD5(byte[]... input)
static byte[]	digestSHA1(byte[]... input)
static void	init(String algorithm)	Ensures that digest(String, byte[][]) will support the specified algorithm.

Methods inherited from class java.lang.Object

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

Method Details

digestMD5

public static byte[] digestMD5(byte[]... input)

digestSHA1

public static byte[] digestSHA1(byte[]... input)

digest

public static byte[] digest(String algorithm,
 byte[]... input)

digest

public static byte[] digest(String algorithm,
 int iterations,
 byte[]... input)

init

public static void init(String algorithm)
                 throws NoSuchAlgorithmException

Ensures that digest(String, byte[][]) will support the specified algorithm. This method must be called and return successfully before using digest(String, byte[][]).

Parameters:

algorithm - The message digest algorithm to be supported

Throws:

NoSuchAlgorithmException - If the algorithm is not supported by the JVM