org.bouncycastle.crypto

Interface Digest

public interface Digest

interface that a message digest conforms to.
Method Summary
intdoFinal(byte[] out, int outOff)
close the digest, producing the final digest value.
StringgetAlgorithmName()
return the algorithm name
intgetDigestSize()
return the size, in bytes, of the digest produced by this message digest.
voidreset()
reset the digest back to it's initial state.
voidupdate(byte in)
update the message digest with a single byte.
voidupdate(byte[] in, int inOff, int len)
update the message digest with a block of bytes.

Method Detail

doFinal

public int doFinal(byte[] out, int outOff)
close the digest, producing the final digest value. The doFinal call leaves the digest reset.

Parameters: out the array the digest is to be copied into. outOff the offset into the out array the digest is to start at.

getAlgorithmName

public String getAlgorithmName()
return the algorithm name

Returns: the algorithm name

getDigestSize

public int getDigestSize()
return the size, in bytes, of the digest produced by this message digest.

Returns: the size, in bytes, of the digest produced by this message digest.

reset

public void reset()
reset the digest back to it's initial state.

update

public void update(byte in)
update the message digest with a single byte.

Parameters: in the input byte to be entered.

update

public void update(byte[] in, int inOff, int len)
update the message digest with a block of bytes.

Parameters: in the byte array containing the data. inOff the offset into the byte array where the data starts. len the length of the data.