org.conqat.lib.commons.digest

Class Digester

java.lang.Object

org.conqat.lib.commons.digest.Digester

public class Digester
extends java.lang.Object

Utility functions for creation of digests.

Constructor Summary

Constructors

Constructor and Description
Digester()

Method Summary

Modifier and Type	Method and Description
static byte[]	createBinaryMD5Digest(byte[] data) Computes an MD5 hash for a byte array and returns the binary hash (i.e.
static byte[]	createBinarySHA1Digest(byte[] data) Computes an SHA-1 hash for a byte array and returns the binary hash (i.e.
static java.lang.String	createMD5Digest(byte[] data) Computes an MD5 hash for a byte array.
static java.lang.String	createMD5Digest(java.util.Collection<java.lang.String> bases) Computes an MD5 hash for a collection of strings.
static java.lang.String	createMD5Digest(java.lang.String base) Computes an MD5 hash for a string.
static java.lang.String	createSHA1Digest(byte[] data) Computes a SHA-1 hash for a string.
static java.lang.String	createSHA1Digest(java.lang.String base) Computes a SHA-1 hash for a string.
static java.lang.String	createSHA256Digest(byte[] data) Computes a SHA-256 hash for a string.
static java.lang.String	createSHA256Digest(java.lang.String base) Computes a SHA-256 hash for a string.
static java.security.MessageDigest	getMD5() Returns MD5 digester or throws an AssertionError if the digester could not be located.
static java.security.MessageDigest	getSHA1() Returns SHA-1 digester or throws an AssertionError if the digester could not be located.
static java.security.MessageDigest	getSHA256() Returns SHA-256 digester or throws an AssertionError if the digester could not be located.

Methods inherited from class java.lang.Object

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

Constructor Detail

Digester

public Digester()

Method Detail

createMD5Digest

public static java.lang.String createMD5Digest(java.lang.String base)

Computes an MD5 hash for a string. The hash is always 32 characters long and only uses characters from [0-9A-F].

createMD5Digest

public static java.lang.String createMD5Digest(byte[] data)

Computes an MD5 hash for a byte array. The hash is always 32 characters long and only uses characters from [0-9A-F].

createSHA1Digest

public static java.lang.String createSHA1Digest(java.lang.String base)

Computes a SHA-1 hash for a string. The hash is always 40 characters long and only uses characters from [0-9A-F].

createSHA1Digest

public static java.lang.String createSHA1Digest(byte[] data)

Computes a SHA-1 hash for a string. The hash is always 40 characters long and only uses characters from [0-9A-F].

createSHA256Digest

public static java.lang.String createSHA256Digest(java.lang.String base)

Computes a SHA-256 hash for a string. The hash is always 64 characters long and only uses characters from [0-9A-F].

createSHA256Digest

public static java.lang.String createSHA256Digest(byte[] data)

Computes a SHA-256 hash for a string. The hash is always 64 characters long and only uses characters from [0-9A-F].

createMD5Digest

public static java.lang.String createMD5Digest(java.util.Collection<java.lang.String> bases)

Computes an MD5 hash for a collection of strings. The strings are sorted before MD5 computation, so that the resulting MD5 hash is independent of the order of the strings in the collection.

createBinarySHA1Digest

public static byte[] createBinarySHA1Digest(byte[] data)

Computes an SHA-1 hash for a byte array and returns the binary hash (i.e. no string conversion).

createBinaryMD5Digest

public static byte[] createBinaryMD5Digest(byte[] data)

Computes an MD5 hash for a byte array and returns the binary hash (i.e. no string conversion).

getMD5

public static java.security.MessageDigest getMD5()

Returns MD5 digester or throws an AssertionError if the digester could not be located.

getSHA1

public static java.security.MessageDigest getSHA1()

Returns SHA-1 digester or throws an AssertionError if the digester could not be located.

getSHA256

public static java.security.MessageDigest getSHA256()

Returns SHA-256 digester or throws an AssertionError if the digester could not be located.