Package org.bouncycastle.jcajce.provider.digest

Class BCMessageDigest

java.lang.Object

java.security.MessageDigestSpi

java.security.MessageDigest

org.bouncycastle.jcajce.provider.digest.BCMessageDigest

Direct Known Subclasses:

MD5.Digest, SHA1.Digest, SHA224.Digest, SHA256.Digest, SHA384.Digest, SHA512.Digest

public class BCMessageDigest
extends MessageDigest

Field Summary

Fields

Modifier and Type	Field	Description
protected Digest	digest

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	BCMessageDigest(Digest digest)

Method Summary

Modifier and Type	Method	Description
byte[]	engineDigest()	Computes and returns the final hash value for this MessageDigestSpi.
void	engineReset()	Puts this MessageDigestSpi back in an initial state, such that it is ready to compute a one way hash value.
void	engineUpdate(byte input)	Updates this MessageDigestSpi using the given byte.
void	engineUpdate(byte[] input, int offset, int len)	Updates this MessageDigestSpi using the given byte[].

Methods inherited from class java.security.MessageDigest

digest, digest, digest, getAlgorithm, getDigestLength, getInstance, getInstance, getInstance, getProvider, isEqual, reset, toString, update, update, update, update

Methods inherited from class java.security.MessageDigestSpi

clone, engineDigest, engineGetDigestLength, engineUpdate

Methods inherited from class java.lang.Object

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

Field Detail

digest

protected Digest digest

Constructor Detail

BCMessageDigest

protected BCMessageDigest(Digest digest)

Method Detail

engineReset

public void engineReset()

Description copied from class: MessageDigestSpi

Puts this MessageDigestSpi back in an initial state, such that it is ready to compute a one way hash value.

Specified by:

engineReset in class MessageDigestSpi

engineUpdate

public void engineUpdate(byte input)

Description copied from class: MessageDigestSpi

Updates this MessageDigestSpi using the given byte.

Specified by:

engineUpdate in class MessageDigestSpi

Parameters:

input - the byte to update this MessageDigestSpi with.

See Also:

MessageDigestSpi.engineReset()

engineUpdate

public void engineUpdate(byte[] input,
                         int offset,
                         int len)

Description copied from class: MessageDigestSpi

Updates this MessageDigestSpi using the given byte[].

Specified by:

engineUpdate in class MessageDigestSpi

Parameters:

input - the byte array.

offset - the index of the first byte in input to update from.

len - the number of bytes in input to update from.

engineDigest

public byte[] engineDigest()

Description copied from class: MessageDigestSpi

Computes and returns the final hash value for this MessageDigestSpi. After the digest is computed the receiver is reset.

Specified by:

engineDigest in class MessageDigestSpi

Returns:

the computed one way hash value.

See Also:

MessageDigestSpi.engineReset()