Package de.mhus.lib.core

Class MPassword

java.lang.Object

de.mhus.lib.core.MPassword

public class MPassword
extends Object

Decode / Encode passwords. Attention: This do not give security in any way. It's only a way to deny reading the password from the screen. No algorithm will give you security in this case. Only one way algorithm is more secure. The password is not allowed to start with a ":". Only the encoded password will start with a ":" followed by the algorithm version and the encoded password. A - old X - not accepted - dummy password B: - rot13 C: - Key Id from MVault ZMD5: - md5 encoded with salt

Author:

mhu

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MPassword.METHOD

Field Summary

Fields

Modifier and Type	Field	Description
static String	PREFIX
static String	PREFIX_DUMMY
static String	PREFIX_HASH_MD5
static String	PREFIX_ROT13
static String	PREFIX_RSA
static String	PREFIX_SPECIAL1

Constructor Summary

Constructors

Constructor	Description
MPassword()

Method Summary

Modifier and Type	Method	Description
static String	decode(String in)	Decode a encoded password.
static String	encode(MPassword.METHOD method, SecureString in, SecureString secret)
static String	encode(MPassword.METHOD method, SecureString in, String secret)
static String	encode(MPassword.METHOD method, String in)
static String	encode(MPassword.METHOD method, String in, SecureString secret)
static String	encode(MPassword.METHOD method, String in, String secret)
static String	encode(String in)	Encode a password string be aware of special characters like umlaute.
static String	encodePasswordMD5(String real)
static boolean	equals(String storedPass, String givenPass)	Check if the passwords are equals.
static String	forceEncodePasswordMD5(String real)
static String	generate(int length, char[] symbols, int symbolLength)
static String	generate(int min, int max, boolean upper, boolean numbers, boolean specials)
static String	generate(int length, String symbols)
static boolean	isEncoded(String in)
static void	main(String[] args)
static String	sha1(String... input)
static boolean	validatePasswordMD5(String real, String md5)

Methods inherited from class java.lang.Object

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

Field Detail

PREFIX_DUMMY

public static final String PREFIX_DUMMY

See Also:

Constant Field Values

PREFIX_ROT13

public static final String PREFIX_ROT13

See Also:

Constant Field Values

PREFIX_RSA

public static final String PREFIX_RSA

See Also:

Constant Field Values

PREFIX_HASH_MD5

public static final String PREFIX_HASH_MD5

See Also:

Constant Field Values

PREFIX_SPECIAL1

public static final String PREFIX_SPECIAL1

See Also:

Constant Field Values

PREFIX

public static final String PREFIX

See Also:

Constant Field Values

Constructor Detail

MPassword

public MPassword()

Method Detail

encode

public static String encode(String in)

Encode a password string be aware of special characters like umlaute. This can cause problems.

Parameters:

in -

Returns:

encoded string

encode

public static String encode(MPassword.METHOD method,
                            SecureString in,
                            String secret)

encode

public static String encode(MPassword.METHOD method,
                            SecureString in,
                            SecureString secret)

encode

public static String encode(MPassword.METHOD method,
                            String in,
                            SecureString secret)

encode

public static String encode(MPassword.METHOD method,
                            String in,
                            String secret)

encode

public static String encode(MPassword.METHOD method,
                            String in)

isEncoded

public static boolean isEncoded(String in)

decode

public static String decode(String in)

Decode a encoded password.

Parameters:

in -

Returns:

decoded string

validatePasswordMD5

public static boolean validatePasswordMD5(String real,
                                          String md5)

encodePasswordMD5

public static String encodePasswordMD5(String real)

forceEncodePasswordMD5

public static String forceEncodePasswordMD5(String real)

sha1

public static String sha1(String... input)
                   throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

main

public static void main(String[] args)

generate

public static String generate(int min,
                              int max,
                              boolean upper,
                              boolean numbers,
                              boolean specials)

generate

public static String generate(int length,
                              char[] symbols,
                              int symbolLength)

generate

public static String generate(int length,
                              String symbols)

equals

public static boolean equals(String storedPass,
                             String givenPass)

Check if the passwords are equals. The password could also be hashes.

Parameters:

storedPass -

givenPass -

Returns:

true if found the are identically