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org.bouncycastle.crypto.general

pack-priv Class NullDigest

extends Object
implements Digest
Class Inheritance
All Implemented Interfaces
org.bouncycastle.crypto.internal.Digest
Imports
java.io.ByteArrayOutputStream, org.bouncycastle.crypto.internal.Digest

Field Summary

Modifier and TypeField and Description
private ByteArrayOutputStream
bOut

Constructor Summary

AccessConstructor and Description
pack-priv
NullDigest()

Method Summary

Modifier and TypeMethod and Description
public int
doFinal(byte[]
the array the digest is to be copied into.
out, int
the offset into the out array the digest is to start at.
outOff)

Implements org.bouncycastle.crypto.internal.Digest.doFinal.

close the digest, producing the final digest value.
public String
getAlgorithmName()

Implements org.bouncycastle.crypto.internal.Digest.getAlgorithmName.

return the algorithm name
public int
getByteLength()

Implements org.bouncycastle.crypto.internal.Digest.getByteLength.

Return the size in bytes of the internal buffer the digest applies it's compression function to.
public int
getDigestSize()

Implements org.bouncycastle.crypto.internal.Digest.getDigestSize.

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

Implements org.bouncycastle.crypto.internal.Digest.reset.

reset the digest back to it's initial state.
public void
update(byte
the input byte to be entered.
in)

Implements org.bouncycastle.crypto.internal.Digest.update.

update the message digest with a single byte.
public void
update(byte[]
the byte array containing the data.
in, int
the offset into the byte array where the data starts.
inOff, int
the length of the data.
len)

Implements org.bouncycastle.crypto.internal.Digest.update.

update the message digest with a block of bytes.
Inherited from java.lang.Object:
cloneequalsfinalizegetClasshashCodenotifynotifyAlltoStringwaitwaitwait

Field Detail

bOutback to summary
private ByteArrayOutputStream bOut

Constructor Detail

NullDigestback to summary
pack-priv NullDigest()

Method Detail

doFinalback to summary
public int doFinal(byte[] out, int outOff)

Implements org.bouncycastle.crypto.internal.Digest.doFinal.

Doc from org.bouncycastle.crypto.internal.Digest.doFinal.

close the digest, producing the final digest value. The doFinal call leaves the digest reset.

Parameters
out:byte[]

the array the digest is to be copied into.

outOff:int

the offset into the out array the digest is to start at.

getAlgorithmNameback to summary
public String getAlgorithmName()

Implements org.bouncycastle.crypto.internal.Digest.getAlgorithmName.

Doc from org.bouncycastle.crypto.internal.Digest.getAlgorithmName.

return the algorithm name

Returns:String

the algorithm name

getByteLengthback to summary
public int getByteLength()

Implements org.bouncycastle.crypto.internal.Digest.getByteLength.

Doc from org.bouncycastle.crypto.internal.Digest.getByteLength.

Return the size in bytes of the internal buffer the digest applies it's compression function to.

Returns:int

byte length of the digests internal buffer.

getDigestSizeback to summary
public int getDigestSize()

Implements org.bouncycastle.crypto.internal.Digest.getDigestSize.

Doc from org.bouncycastle.crypto.internal.Digest.getDigestSize.

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

Returns:int

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

resetback to summary
public void reset()

Implements org.bouncycastle.crypto.internal.Digest.reset.

Doc from org.bouncycastle.crypto.internal.Digest.reset.

reset the digest back to it's initial state.

updateback to summary
public void update(byte in)

Implements org.bouncycastle.crypto.internal.Digest.update.

Doc from org.bouncycastle.crypto.internal.Digest.update.

update the message digest with a single byte.

Parameters
in:byte

the input byte to be entered.

updateback to summary
public void update(byte[] in, int inOff, int len)

Implements org.bouncycastle.crypto.internal.Digest.update.

Doc from org.bouncycastle.crypto.internal.Digest.update.

update the message digest with a block of bytes.

Parameters
in:byte[]

the byte array containing the data.

inOff:int

the offset into the byte array where the data starts.

len:int

the length of the data.