Overview  Package   Class  Use  Deprecated  Index
Home >> All >> com >> ssttr >> [ crypto overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

---

com.ssttr.crypto
Class SHA1  

java.lang.Object
  com.ssttr.crypto.MessageDigest
      com.ssttr.crypto.SHA1

---

public final class SHA1

extends MessageDigest

This is a simple port of Steve Reid's SHA-1 code into Java. I've run his test vectors through the code and they all pass.

---

Field Summary
private  int[]	block
private  int	blockIndex
private  long	count
(package private)  int[]	dd
private  int[]	state

 

Fields inherited from class com.ssttr.crypto.MessageDigest

digestBits, digestValid, testdata

 

Constructor Summary

SHA1()

 

Method Summary
(package private)  int	blk(int i)
(package private)  int	blk0(int i)
void	finish()           Complete processing on the message digest.
java.lang.String	getAlg()           Return a string that identifies this algorithm
void	init()           SHA1Init - Initialize new context
(package private)  void	R0(int[] data, int v, int w, int x, int y, int z, int i)
(package private)  void	R1(int[] data, int v, int w, int x, int y, int z, int i)
(package private)  void	R2(int[] data, int v, int w, int x, int y, int z, int i)
(package private)  void	R3(int[] data, int v, int w, int x, int y, int z, int i)
(package private)  void	R4(int[] data, int v, int w, int x, int y, int z, int i)
(package private)  int	rol(int value, int bits)
(package private)  void	transform()           Hash a single 512-bit block.
void	update(byte b)           Add one byte to the digest.

 

Methods inherited from class com.ssttr.crypto.MessageDigest

benchmark, computeDigest, computeDigest, getDigest, getDigestBytes, getDigestHex, isEqual, isEqual, toString, update, update, update, update, update, update, update, update, update, update, update, updateASCII

 

Methods inherited from class java.lang.Object

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

 

Field Detail

state

private int[] state

---

count

private long count

---

block

private int[] block

---

blockIndex

private int blockIndex

---

dd

int[] dd

Constructor Detail

SHA1

public SHA1()

Method Detail

rol

final int rol(int value,
              int bits)

---

blk0

final int blk0(int i)

---

blk

final int blk(int i)

---

R0

final void R0(int[] data,
              int v,
              int w,
              int x,
              int y,
              int z,
              int i)

---

R1

final void R1(int[] data,
              int v,
              int w,
              int x,
              int y,
              int z,
              int i)

---

R2

final void R2(int[] data,
              int v,
              int w,
              int x,
              int y,
              int z,
              int i)

---

R3

final void R3(int[] data,
              int v,
              int w,
              int x,
              int y,
              int z,
              int i)

---

R4

final void R4(int[] data,
              int v,
              int w,
              int x,
              int y,
              int z,
              int i)

---

transform

void transform()

Hash a single 512-bit block. This is the core of the algorithm. Note that working with arrays is very inefficent in Java as it does a class cast check each time you store into the array.

---

init

public void init()

SHA1Init - Initialize new context

Specified by:

init in class MessageDigest

---

update

public void update(byte b)

Add one byte to the digest. When this is implemented all of the abstract class methods end up calling this method for types other than bytes.

Specified by:

update in class MessageDigest

---

finish

public void finish()

Complete processing on the message digest.

Specified by:

finish in class MessageDigest

---

getAlg

public java.lang.String getAlg()

Return a string that identifies this algorithm

Specified by:

getAlg in class MessageDigest

---

Overview  Package   Class  Use  Deprecated  Index
Home >> All >> com >> ssttr >> [ crypto overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

---