org.ssonet.mechanisms.accountability
Class DSA

java.lang.Object
  |
  +--org.ssonet.mechanisms.accountability.AbstractAccountabilityMechanism
        |
        +--org.ssonet.mechanisms.accountability.DSA

All Implemented Interfaces:

IOStream, Mechanism

public class DSA

extends AbstractAccountabilityMechanism

Field Summary

(package private) boolean

debug

Fields inherited from class org.ssonet.mechanisms.accountability.AbstractAccountabilityMechanism

EOF, inBuffer, INBUFFER_SIZE, ioStream, keyLengths, mechanismName, messageBuffer, modes, negotiatedMechConf, providers, readBlockNumber, readException, readMode, rounds, securityGoal, signatureBuffer, signatureIn, signatureOut, validBytesToRead, variants, writeBlockNumber

Fields inherited from interface org.ssonet.net.Mechanism

KEYLENGTH, MODES, PROVIDERLIST, ROUNDS, VARIANTS

Constructor Summary

DSA()

Method Summary

void	init(org.ssonet.io.IOStream ioStream, int securityGoal, org.ssonet.mechanisms.MechanismConfiguration ownMechanismConfiguration) Initialize without key exchange
void	init(org.ssonet.io.IOStream ioStream, int securityGoal, org.ssonet.mechanisms.MechanismConfiguration ownMechanismConfiguration, org.ssonet.mechanisms.MechanismConfiguration partnerMechanismConfiguration, org.ssonet.net.KeyExchange keyExchange) Initialize with key exchange Must be synchronized, so that not two keypairs are created an written to the context.
protected void	initCipher(int securityGoal, java.security.PrivateKey signKey, java.security.PublicKey testKey, org.ssonet.io.IOStream ioStream) Initialize crypto mechanisms

Methods inherited from class org.ssonet.mechanisms.accountability.AbstractAccountabilityMechanism

available, closeIn, closeOut, getConfiguration, getDefaultConfiguration, getKeyLengths, getModes, getName, getProviders, getRounds, getVariants, initIOStream, read, testDecrypt, testEncrypt, write

Methods inherited from class java.lang.Object

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

Field Detail

debug

boolean debug

Constructor Detail

DSA

public DSA()

Method Detail

init

public void init(org.ssonet.io.IOStream ioStream,
                 int securityGoal,
                 org.ssonet.mechanisms.MechanismConfiguration ownMechanismConfiguration)

Initialize without key exchange

Specified by:

init in interface Mechanism

Overrides:

init in class AbstractAccountabilityMechanism

Parameters:

ioStream - mechanism IOStream

ownMechanismConfiguration - own mechanism configuration, for this method the mechanism configuration must also enclose the respective key (private or public) for the intended operation (sign or test)

securityGoal - the security goal, for which the algorithm is used

init

public void init(org.ssonet.io.IOStream ioStream,
                 int securityGoal,
                 org.ssonet.mechanisms.MechanismConfiguration ownMechanismConfiguration,
                 org.ssonet.mechanisms.MechanismConfiguration partnerMechanismConfiguration,
                 org.ssonet.net.KeyExchange keyExchange)
          throws ParameterNotCompatibleException

Initialize with key exchange Must be synchronized, so that not two keypairs are created an written to the context. with synchronization, the first call creates the keypair, and the second call finds the allready created keys.

Specified by:

init in interface Mechanism

Overrides:

init in class AbstractAccountabilityMechanism

Parameters:

ioStream - mechanism IOStream

ownMechanismConfiguration - own mechanism configuration

partnerMechanismConfiguration - partner mechanism configuration

keyExchange - prepared key exchange protocol

securityGoal - the security goal, for which the algorithm is used

Throws:

ParameterNotCompatibleException - if negotiation of parameters fails

initCipher

protected void initCipher(int securityGoal,
                          java.security.PrivateKey signKey,
                          java.security.PublicKey testKey,
                          org.ssonet.io.IOStream ioStream)

Initialize crypto mechanisms

Parameters:

testKey - test key

signKey - sign key