Package org.appng.api.auth

Class AuthTools

java.lang.Object

org.appng.api.auth.AuthTools

public final class AuthTools
extends Object

This class is used to get different types of digests.

Author:

Matthias Herlitzius

Method Summary

Modifier and Type	Method	Description
static byte[]	base64ToByte(String data)	From a base 64 representation, returns the corresponding byte[]
static String	byteToBase64(byte[] data)	From a byte[] returns a base 64 representation.
static String	getMd5Digest(String input)	Returns a MD5 digest.
static String	getRandomSalt(int length)	Returns a random salt with a given length.
static String	getSha1Digest(String input)	Returns a SHA-1 digest.
static String	getSha512Digest(String input)	Returns a SHA-512 digest.

Methods inherited from class java.lang.Object

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

Method Detail

base64ToByte

public static byte[] base64ToByte(String data)
                           throws IOException

From a base 64 representation, returns the corresponding byte[]

Parameters:

data - The base 64 data to be converted to byte[].

Returns:

The base 64 data converted to byte[].

Throws:

IOException

byteToBase64

public static String byteToBase64(byte[] data)

From a byte[] returns a base 64 representation.

Parameters:

data - The byte[] to be converted to base 64.

Returns:

The byte[] converted to base 64.

getRandomSalt

public static String getRandomSalt(int length)

Returns a random salt with a given length.

Parameters:

length - The length of the salt in byte.

Returns:

A random salt, represented as base 64. The value of the length parameter is only relevant for the length of byte[], which is internally used to generate the salt. The length of the returned base 64 representation of the salt may be different than the value of the length parameter.

getMd5Digest

public static String getMd5Digest(String input)

Returns a MD5 digest. Although this convenience method is provided, it is recommended to use the stronger getSha512Digest(String) method or at least the getSha1Digest(String) method.

Parameters:

input - the input string

Returns:

the MD5 hash of the input string

getSha1Digest

public static String getSha1Digest(String input)

Returns a SHA-1 digest. It is recommended to use the stronger getSha512Digest(String) method.

Parameters:

input - the input string

Returns:

the SHA-1 hash of the input string

getSha512Digest

public static String getSha512Digest(String input)

Returns a SHA-512 digest.

Parameters:

input - the input string

Returns:

the SHA-512 hash of the input string