Package org.wildfly.security.password.util

Class ModularCrypt

java.lang.Object

org.wildfly.security.password.util.ModularCrypt

public final class ModularCrypt
extends Object

Helper utility methods for operation on passwords based on the Modular Crypt Format(MCF).

Author:

Juraci Paixão Kröhling, David M. Lloyd

Method Summary

Modifier and Type	Method	Description
static void	composePassword(ByteArrayOutputStream out, Password password)
static Password	createPassword(byte[] password, String algorithm)
static Password	decode(char[] cryptString)	Decode the given char array and creates a Password instance.
static Password	decode(String cryptString)	Decode the given string and creates a Password instance.
static char[]	encode(Password password)	Encode the given Password to a char array.
static String	encodeAsString(Password password)	Encode the given Password to a string.
static String	identifyAlgorithm(char[] chars)	Attempt to identify the algorithm used by the given crypt string password.

Methods inherited from class java.lang.Object

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

Method Detail

identifyAlgorithm

public static String identifyAlgorithm(char[] chars)

Attempt to identify the algorithm used by the given crypt string password.

Parameters:

chars - the password crypt string characters

Returns:

the algorithm name, or null if no algorithm could be guessed

encode

public static char[] encode(Password password)
                     throws InvalidKeySpecException

Encode the given Password to a char array.

Parameters:

password - the password to encode

Returns:

a char array representing the encoded password

Throws:

InvalidKeySpecException - if the given password is not supported or could be encoded

encodeAsString

public static String encodeAsString(Password password)
                             throws InvalidKeySpecException

Encode the given Password to a string.

Parameters:

password - the password to encode

Returns:

a string representing the encoded password

Throws:

InvalidKeySpecException - if the given password is not supported or could be encoded

decode

public static Password decode(String cryptString)
                       throws InvalidKeySpecException

Decode the given string and creates a Password instance.

Parameters:

cryptString - the string representing the encoded format of the password

Returns:

a Password instance created from the given string

Throws:

InvalidKeySpecException - if the given password is not supported or could be decoded

decode

public static Password decode(char[] cryptString)
                       throws InvalidKeySpecException

Decode the given char array and creates a Password instance.

Parameters:

cryptString - the char array representing the encoded format of the password

Returns:

a Password instance created from the given string

Throws:

InvalidKeySpecException - if the given password is not supported or could be decoded

createPassword

public static Password createPassword(byte[] password,
                                      String algorithm)
                               throws InvalidKeySpecException

Throws:

InvalidKeySpecException

composePassword

public static void composePassword(ByteArrayOutputStream out,
                                   Password password)
                            throws IOException

Throws:

IOException