Package org.wildfly.security.password.impl

Class UnixMD5CryptPasswordImpl

java.lang.Object

org.wildfly.security.password.impl.AbstractPasswordImpl

org.wildfly.security.password.impl.UnixMD5CryptPasswordImpl

All Implemented Interfaces:

Serializable, Cloneable, Key, UnixMD5CryptPassword, OneWayPassword, Password

final class UnixMD5CryptPasswordImpl
extends AbstractPasswordImpl
implements UnixMD5CryptPassword

Implementation of the Unix MD5 Crypt password.

Author:

Farah Juma, David M. Lloyd

Field Summary

Fields

Modifier and Type	Field	Description
private byte[]	hash
(package private) static byte[]	MAGIC_BYTES
(package private) static String	MD5
private byte[]	salt
private static long	serialVersionUID

Fields inherited from interface org.wildfly.security.password.interfaces.UnixMD5CryptPassword

ALGORITHM_CRYPT_MD5, ITERATION_COUNT, SALT_SIZE

Constructor Summary

Constructors

Constructor	Description
UnixMD5CryptPasswordImpl(byte[] clonedHash, byte[] clonedSalt)
UnixMD5CryptPasswordImpl(char[] password, byte[] salt, Charset hashCharset)
UnixMD5CryptPasswordImpl(char[] password, Charset hashCharset)
UnixMD5CryptPasswordImpl(char[] password, SaltedPasswordAlgorithmSpec spec, Charset hashCharset)
UnixMD5CryptPasswordImpl(UnixMD5CryptPassword password)
UnixMD5CryptPasswordImpl(ClearPasswordSpec spec)
UnixMD5CryptPasswordImpl(SaltedHashPasswordSpec spec)

Method Summary

Modifier and Type	Method	Description
UnixMD5CryptPasswordImpl	clone()	Creates and returns a copy of this Password.
(package private) <T extends KeySpec> boolean	convertibleTo(Class<T> keySpecType)
(package private) static byte[]	encode(byte[] password, byte[] salt)	Hashes the given password using the MD5 Crypt algorithm.
boolean	equals(Object obj)
String	getAlgorithm()
byte[]	getHash()	Get the hash component of this password.
(package private) <S extends KeySpec> S	getKeySpec(Class<S> keySpecType)
(package private) static MessageDigest	getMD5MessageDigest()
byte[]	getSalt()	Get the salt component of this password.
int	hashCode()
private void	readObject(ObjectInputStream ignored)
private static byte[]	truncatedClone(byte[] salt)
(package private) boolean	verify(char[] guess)
(package private) boolean	verify(char[] guess, Charset hashCharset)
(package private) Object	writeReplace()

Methods inherited from class org.wildfly.security.password.impl.AbstractPasswordImpl

getEncoded, getFormat, getNormalizedPasswordBytes, getNormalizedPasswordBytes, translate

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.security.Key

getEncoded, getFormat

Methods inherited from interface org.wildfly.security.password.Password

castAndApply, castAndApply, castAs, castAs

Methods inherited from interface org.wildfly.security.password.interfaces.UnixMD5CryptPassword

getParameterSpec, impliesParameters

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

MD5

static final String MD5

See Also:

Constant Field Values

MAGIC_BYTES

static final byte[] MAGIC_BYTES

hash

private final byte[] hash

salt

private final byte[] salt

Constructor Detail

UnixMD5CryptPasswordImpl

UnixMD5CryptPasswordImpl(byte[] clonedHash,
                         byte[] clonedSalt)

UnixMD5CryptPasswordImpl

UnixMD5CryptPasswordImpl(UnixMD5CryptPassword password)

UnixMD5CryptPasswordImpl

UnixMD5CryptPasswordImpl(SaltedHashPasswordSpec spec)

UnixMD5CryptPasswordImpl

UnixMD5CryptPasswordImpl(ClearPasswordSpec spec)
                  throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

UnixMD5CryptPasswordImpl

UnixMD5CryptPasswordImpl(char[] password,
                         Charset hashCharset)
                  throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

UnixMD5CryptPasswordImpl

UnixMD5CryptPasswordImpl(char[] password,
                         SaltedPasswordAlgorithmSpec spec,
                         Charset hashCharset)
                  throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

UnixMD5CryptPasswordImpl

UnixMD5CryptPasswordImpl(char[] password,
                         byte[] salt,
                         Charset hashCharset)
                  throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

Method Detail

truncatedClone

private static byte[] truncatedClone(byte[] salt)

getAlgorithm

public String getAlgorithm()

Specified by:

getAlgorithm in interface Key

getHash

public byte[] getHash()

Description copied from interface: UnixMD5CryptPassword

Get the hash component of this password.

Specified by:

getHash in interface UnixMD5CryptPassword

Returns:

the hash component

getSalt

public byte[] getSalt()

Description copied from interface: UnixMD5CryptPassword

Get the salt component of this password.

Specified by:

getSalt in interface UnixMD5CryptPassword

Returns:

the salt component

getKeySpec

<S extends KeySpec> S getKeySpec(Class<S> keySpecType)
                          throws InvalidKeySpecException

Specified by:

getKeySpec in class AbstractPasswordImpl

Throws:

InvalidKeySpecException

verify

boolean verify(char[] guess)
        throws InvalidKeyException

Specified by:

verify in class AbstractPasswordImpl

Throws:

InvalidKeyException

verify

boolean verify(char[] guess,
               Charset hashCharset)
        throws InvalidKeyException

Overrides:

verify in class AbstractPasswordImpl

Throws:

InvalidKeyException

convertibleTo

<T extends KeySpec> boolean convertibleTo(Class<T> keySpecType)

Specified by:

convertibleTo in class AbstractPasswordImpl

encode

static byte[] encode(byte[] password,
                     byte[] salt)
              throws NoSuchAlgorithmException

Hashes the given password using the MD5 Crypt algorithm.

Parameters:

password - the password to be hashed

salt - the salt, will be truncated to an array of 8 bytes if an array larger than 8 bytes is given

Returns:

a byte[] containing the hashed password

Throws:

NoSuchAlgorithmException - if a MessageDigest object that implements MD5 cannot be retrieved

getMD5MessageDigest

static MessageDigest getMD5MessageDigest()
                                  throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

hashCode

public int hashCode()

Specified by:

hashCode in class AbstractPasswordImpl

equals

public boolean equals(Object obj)

Specified by:

equals in class AbstractPasswordImpl

readObject

private void readObject(ObjectInputStream ignored)
                 throws NotSerializableException

Throws:

NotSerializableException

writeReplace

Object writeReplace()

clone

public UnixMD5CryptPasswordImpl clone()

Description copied from interface: Password

Creates and returns a copy of this Password.

Specified by:

clone in interface OneWayPassword

Specified by:

clone in interface Password

Specified by:

clone in interface UnixMD5CryptPassword

Specified by:

clone in class AbstractPasswordImpl

Returns:

a copy of this Password.