com.jscape.inet.util
Class MD5

java.lang.Object
  com.jscape.inet.util.MD5

public class MD5
extends java.lang.Object

Implements basic MD5 hash functionality based on algorithm described in RFC 1321.

Example Usage:

 String data = "secret";
 MD5 hash = new MD5(data);
 String hashValue = hash.getHash();
 

Example Usage for keyed hashing:

 String data = "secret";
 String key = "confidential";
 MD5 hash = new MD5(data,key);
 String hashValue = hash.getHash();
 

Constructor Summary

MD5(byte[] bytes)
Constructs new MD5 instance.

MD5(byte[] value, byte[] keyvalue)
Constructs new MD5 instance.

MD5(java.lang.String value)
Constructs new MD5 instance.

MD5(java.lang.String value, java.lang.String keyvalue)
Constructs new MD5 instance.

Method Summary

byte[]	fromHexString(java.lang.String s) fromHexString() function is to convert hex string to array of bytes.
java.lang.String	getHash() Gets hash representation of this MD5.
java.lang.String	toString() Gets hash representation of this MD5.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

MD5

public MD5(java.lang.String value)

Constructs new MD5 instance.

Parameters:

value - the String value to hash

MD5

public MD5(byte[] bytes)

Constructs new MD5 instance.

Parameters:

bytes - a byte[] to hash

MD5

public MD5(java.lang.String value,
           java.lang.String keyvalue)

Constructs new MD5 instance.

Parameters:

value - the String to hash

keyvalue - the String used as secret key

MD5

public MD5(byte[] value,
           byte[] keyvalue)

Constructs new MD5 instance.

Parameters:

value - a byte[] to hash

keyvalue - a byte[] to use for secret key

Method Detail

fromHexString

public byte[] fromHexString(java.lang.String s)

fromHexString() function is to convert hex string to array of bytes.

Parameters:

s - - Hex characters

Returns:

value a byte[]of hex string

toString

public java.lang.String toString()

Gets hash representation of this MD5. Same as invoking getHash method.

Overrides:

toString in class java.lang.Object

Returns:

hash

getHash

public java.lang.String getHash()

Gets hash representation of this MD5.

Returns:

hash value