Package org.bouncycastle.openpgp

Class PGPOnePassSignature

java.lang.Object

org.bouncycastle.openpgp.PGPOnePassSignature

public class PGPOnePassSignature
extends Object

A one pass signature object.

Field Summary

Fields

Modifier and Type	Field	Description
protected byte	lastb
protected OutputStream	sigOut
protected int	sigType

Constructor Summary

Constructors

Constructor	Description
PGPOnePassSignature(BCPGInputStream pIn)

Method Summary

Modifier and Type	Method	Description
protected void	blockUpdate(byte[] block, int off, int len)
void	encode(OutputStream outStream)
protected void	getAttriubtesHash(PGPUserAttributeSubpacketVector userAttributes)
byte[]	getEncoded()
int	getHashAlgorithm()
int	getKeyAlgorithm()
long	getKeyID()
int	getSignatureType()
void	init(PGPContentVerifierBuilderProvider verifierBuilderProvider, PGPPublicKey pubKey)	Initialise the signature object for verification.
boolean	isContaining()	Return true, if the signature is contains any signatures that follow.
void	update(byte b)
void	update(byte[] b)
void	update(byte[] b, int off, int len)
protected void	updateWithIdData(int header, byte[] idBytes)
protected void	updateWithPublicKey(PGPPublicKey key)
boolean	verify(PGPSignature pgpSig)	Verify the calculated signature against the passed in PGPSignature.

Methods inherited from class java.lang.Object

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

Field Details

lastb

protected byte lastb

sigOut

protected OutputStream sigOut

sigType

protected int sigType

Constructor Details

PGPOnePassSignature

public PGPOnePassSignature(BCPGInputStream pIn)
                    throws IOException,
PGPException

Throws:

IOException

PGPException

Method Details

init

public void init(PGPContentVerifierBuilderProvider verifierBuilderProvider,
 PGPPublicKey pubKey)
          throws PGPException

Initialise the signature object for verification.

Parameters:

verifierBuilderProvider - provider for a content verifier builder for the signature type of interest.

pubKey - the public key to use for verification

Throws:

PGPException - if there's an issue with creating the verifier.

verify

public boolean verify(PGPSignature pgpSig)
               throws PGPException

Verify the calculated signature against the passed in PGPSignature.

Parameters:

pgpSig -

Returns:

boolean

Throws:

PGPException

getKeyID

public long getKeyID()

getSignatureType

public int getSignatureType()

getHashAlgorithm

public int getHashAlgorithm()

getKeyAlgorithm

public int getKeyAlgorithm()

isContaining

public boolean isContaining()

Return true, if the signature is contains any signatures that follow. An bracketing OPS is followed by additional OPS packets and is calculated over all the data between itself and its corresponding signature (it is an attestation for contained signatures).

Returns:

true if containing, false otherwise

getEncoded

public byte[] getEncoded()
                  throws IOException

Throws:

IOException

encode

public void encode(OutputStream outStream)
            throws IOException

Throws:

IOException

update

public void update(byte b)

update

public void update(byte[] b)

update

public void update(byte[] b,
 int off,
 int len)

blockUpdate

protected void blockUpdate(byte[] block,
 int off,
 int len)

updateWithIdData

protected void updateWithIdData(int header,
 byte[] idBytes)

updateWithPublicKey

protected void updateWithPublicKey(PGPPublicKey key)
                            throws PGPException

Throws:

PGPException

getAttriubtesHash

protected void getAttriubtesHash(PGPUserAttributeSubpacketVector userAttributes)
                          throws PGPException

Throws:

PGPException