Module org.xbib.rpm

Package org.xbib.rpm.security

Class SignatureGenerator

java.lang.Object

org.xbib.rpm.security.SignatureGenerator

public class SignatureGenerator
extends Object

To verify the authenticity of the package, the SIGTAG_PGP tag holds a Version 3 OpenPGP Signature Packet RSA signature of the header and payload areas. The SIGTAG_GPG tag holds a Version 3 OpenPGP Signature Packet DSA signature of the header and payload areas. The SIGTAG_DSAHEADER holds a DSA signature of just the header section. If the SIGTAG_DSAHEADER tag is included, the SIGTAG_GPG tag must also be present. The SIGTAG_ RSAHEADER holds an RSA signature of just the header section. If the SIGTAG_ RSAHEADER tag is included, the SIGTAG_PGP tag must also be present.

Constructor Summary

Constructors

Constructor	Description
SignatureGenerator(InputStream privateKeyRing, Long privateKeyId, String privateKeyPassphrase)

Method Summary

Modifier and Type	Method	Description
void	finishAfterHeader(WritableChannelWrapper output)
void	finishAfterPayload(WritableChannelWrapper output)
boolean	isEnabled()
void	prepare(SignatureHeader signature, HashAlgo algo)
void	startBeforeHeader(WritableChannelWrapper output, HashAlgo algo)
ChannelWrapper.Key<byte[]>	startDigest(WritableChannelWrapper output, String digest)	Start a digest.

Methods inherited from class java.lang.Object

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

Constructor Details

SignatureGenerator

public SignatureGenerator(InputStream privateKeyRing,
 Long privateKeyId,
 String privateKeyPassphrase)

Method Details

prepare

public void prepare(SignatureHeader signature,
 HashAlgo algo)

startBeforeHeader

public void startBeforeHeader(WritableChannelWrapper output,
 HashAlgo algo)
                       throws RpmException

Throws:

RpmException

startDigest

public ChannelWrapper.Key<byte[]> startDigest(WritableChannelWrapper output,
 String digest)
                                       throws RpmException

Start a digest.

Parameters:

output - the output channel

digest - the message digest

Returns:

reference to the new key added to the consumers

Throws:

RpmException - if digest could not be generated

finishAfterHeader

public void finishAfterHeader(WritableChannelWrapper output)

finishAfterPayload

public void finishAfterPayload(WritableChannelWrapper output)

isEnabled

public boolean isEnabled()