net.sourceforge.blowfishj

Class SHA1

java.lang.Object

net.sourceforge.blowfishj.SHA1

public class SHA1
extends java.lang.Object

SHA-1 message digest implementation, translated from C source code (the origin is unknown).

Field Summary

Fields

Modifier and Type	Field and Description
static int	DIGEST_SIZE size of a SHA-1 digest in octets

Constructor Summary

Constructors

Constructor and Description
SHA1() Default constructor.

Method Summary

Modifier and Type	Method and Description
void	clear() Clears all data, use reset() to start again.
void	finalize() Finalizes the digest.
byte[]	getDigest() Retrieves the digest.
int	getDigest(byte[] buf, int nOfs) Retrieves the digest into an existing buffer.
void	reset() Initializes (or resets) the hasher for a new session.
boolean	selfTest() Runs an integrity test.
java.lang.String	toString() makes a binhex string representation of the current digest
void	update(byte bB) Adds a single byte to the digest.
void	update(byte[] data) Deprecated. use update(byte[], int, int) instead
void	update(byte[] data, int nOfs, int nLen) Adds a portion of a byte array to the digest.
void	update(java.lang.String sData) Deprecated. don't use this method anymore (it's not clean), you might want to try update(sData.getBytes()) instead

Methods inherited from class java.lang.Object

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

Field Detail

DIGEST_SIZE

public static final int DIGEST_SIZE

size of a SHA-1 digest in octets

See Also:

Constant Field Values

Constructor Detail

SHA1

public SHA1()

Default constructor.

Method Detail

clear

public void clear()

Clears all data, use reset() to start again.

reset

public void reset()

Initializes (or resets) the hasher for a new session.

update

public void update(byte bB)

Adds a single byte to the digest.

Parameters:

bB - the byte to add

update

public void update(byte[] data)

Deprecated. use update(byte[], int, int) instead

Adds a byte array to the digest.

Parameters:

data - the data to add

update

public void update(byte[] data,
                   int nOfs,
                   int nLen)

Adds a portion of a byte array to the digest.

Parameters:

data - the data to add

update

public void update(java.lang.String sData)

Deprecated. don't use this method anymore (it's not clean), you might want to try update(sData.getBytes()) instead

Adds an ASCII string (8bit) to the digest.

Parameters:

sData - the string to add

finalize

public void finalize()

Finalizes the digest.

Overrides:

finalize in class java.lang.Object

getDigest

public byte[] getDigest()

Retrieves the digest.

Returns:

the digst bytes as an array if DIGEST_SIZE bytes

getDigest

public int getDigest(byte[] buf,
                     int nOfs)

Retrieves the digest into an existing buffer.

Parameters:

buf - buffer to store the digst into

nOfs - where to write to

Returns:

number of bytes written

toString

public java.lang.String toString()

makes a binhex string representation of the current digest

Overrides:

toString in class java.lang.Object

Returns:

the string representation

selfTest

public boolean selfTest()

Runs an integrity test.

Returns:

true: selftest passed / false: selftest failed