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plugins.MsnEngine
Class MD5
java.lang.Objectplugins.MsnEngine.MD5
- public class MD5
- extends java.lang.Object
Implementation of RSA's MD5 hash generator
- Version:
- $Revision: 1.3 $
| Nested Class Summary | |
private class |
MD5.MD5State
Contains internal state of the MD5 class |
| Field Summary | |
(package private) MD5.MD5State |
finals
If Final() has been called, finals is set to the current finals state. |
(package private) static byte[] |
padding
Padding for Final() |
(package private) MD5.MD5State |
state
MD5 state |
| Constructor Summary | |
MD5()
Class constructor |
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MD5(java.lang.Object ob)
Initialize class, and update hash with ob.toString() |
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| Method Summary | |
java.lang.String |
asHex()
Returns 32-character hex representation of this objects hash |
static java.lang.String |
asHex(byte[] hash)
Turns array of bytes into string representing each byte as unsigned hex number. |
private int[] |
Decode(byte[] buffer,
int len,
int shift)
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private byte[] |
Encode(int[] input,
int len)
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private int |
FF(int a,
int b,
int c,
int d,
int x,
int s,
int ac)
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byte[] |
Final()
Returns array of bytes (16 bytes) representing hash as of the current state of this object. |
private int |
GG(int a,
int b,
int c,
int d,
int x,
int s,
int ac)
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private int |
HH(int a,
int b,
int c,
int d,
int x,
int s,
int ac)
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private int |
II(int a,
int b,
int c,
int d,
int x,
int s,
int ac)
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void |
Init()
Initialize MD5 internal state (object can be reused just by calling Init() after every Final() |
private int |
rotate_left(int x,
int n)
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private void |
Transform(MD5.MD5State state,
byte[] buffer,
int shift)
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private int |
uadd(int a,
int b)
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private int |
uadd(int a,
int b,
int c)
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private int |
uadd(int a,
int b,
int c,
int d)
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void |
Update(byte b)
Updates hash with a single byte |
void |
Update(byte[] buffer)
Updates hash with given array of bytes |
void |
Update(byte[] buffer,
int length)
|
void |
Update(byte[] buffer,
int offset,
int length)
Plain update, updates this object |
void |
Update(int i)
Update buffer with a single integer (only & 0xff part is used, as a byte) |
void |
Update(MD5.MD5State stat,
byte[] buffer,
int offset,
int length)
Updates hash with the bytebuffer given (using at maximum length bytes from that buffer) |
void |
Update(java.lang.String s)
Update buffer with given string. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
state
MD5.MD5State state
- MD5 state
finals
MD5.MD5State finals
- If Final() has been called, finals is set to the current finals
state. Any Update() causes this to be set to null.
padding
static byte[] padding
- Padding for Final()
| Constructor Detail |
MD5
public MD5()
- Class constructor
MD5
public MD5(java.lang.Object ob)
- Initialize class, and update hash with ob.toString()
| Method Detail |
Init
public void Init()
- Initialize MD5 internal state (object can be reused just by
calling Init() after every Final()
rotate_left
private int rotate_left(int x,
int n)
uadd
private int uadd(int a,
int b)
uadd
private int uadd(int a,
int b,
int c)
uadd
private int uadd(int a,
int b,
int c,
int d)
FF
private int FF(int a,
int b,
int c,
int d,
int x,
int s,
int ac)
GG
private int GG(int a,
int b,
int c,
int d,
int x,
int s,
int ac)
HH
private int HH(int a,
int b,
int c,
int d,
int x,
int s,
int ac)
II
private int II(int a,
int b,
int c,
int d,
int x,
int s,
int ac)
Decode
private int[] Decode(byte[] buffer,
int len,
int shift)
Transform
private void Transform(MD5.MD5State state, byte[] buffer, int shift)
Update
public void Update(MD5.MD5State stat, byte[] buffer, int offset, int length)
- Updates hash with the bytebuffer given (using at maximum length bytes from
that buffer)
Update
public void Update(byte[] buffer,
int offset,
int length)
- Plain update, updates this object
Update
public void Update(byte[] buffer,
int length)
Update
public void Update(byte[] buffer)
- Updates hash with given array of bytes
Update
public void Update(byte b)
- Updates hash with a single byte
Update
public void Update(java.lang.String s)
- Update buffer with given string.
Update
public void Update(int i)
- Update buffer with a single integer (only & 0xff part is used,
as a byte)
Encode
private byte[] Encode(int[] input,
int len)
Final
public byte[] Final()
- Returns array of bytes (16 bytes) representing hash as of the
current state of this object. Note: getting a hash does not
invalidate the hash object, it only creates a copy of the real
state which is finalized.
asHex
public static java.lang.String asHex(byte[] hash)
- Turns array of bytes into string representing each byte as
unsigned hex number.
asHex
public java.lang.String asHex()
- Returns 32-character hex representation of this objects hash
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SUMMARY: JAVADOC | SOURCE | DOWNLOAD | NESTED | FIELD | CONSTR | METHOD |
DETAIL: FIELD | CONSTR | METHOD | ||||||||