Class SRP6VerifierGenerator

java.lang.Object

org.bouncycastle.tls.crypto.impl.jcajce.srp.SRP6VerifierGenerator

public class SRP6VerifierGenerator
extends Object

Generates new SRP verifier for user

Field Summary

Fields

Modifier and Type	Field	Description
protected TlsHash	digest
protected BigInteger	g
protected BigInteger	N
protected SecureRandom	random

Constructor Summary

Constructors

Constructor	Description
SRP6VerifierGenerator()

Method Summary

Modifier and Type	Method	Description
BigInteger	generateVerifier(byte[] salt, byte[] identity, byte[] password)	Creates a new SRP verifier
void	init(BigInteger N, BigInteger g, TlsHash digest)	Initialises generator to create new verifiers
void	init(BigInteger N, BigInteger g, TlsHash digest, SecureRandom random)	Initialises generator to create new verifiers
void	init(SRP6Group group, TlsHash digest)
void	init(SRP6Group group, TlsHash digest, SecureRandom random)

Methods inherited from class Object

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

Field Details

N

protected BigInteger N

g

protected BigInteger g

digest

protected TlsHash digest

random

protected SecureRandom random

Constructor Details

SRP6VerifierGenerator

public SRP6VerifierGenerator()

Method Details

init

public void init(BigInteger N,
 BigInteger g,
 TlsHash digest)

Initialises generator to create new verifiers

Parameters:

N - The safe prime to use (see DHParametersGenerator)

g - The group parameter to use (see DHParametersGenerator)

digest - The digest to use. The same digest type will need to be used later for the actual authentication attempt. Also note that the final session key size is dependent on the chosen digest.

init

public void init(BigInteger N,
 BigInteger g,
 TlsHash digest,
 SecureRandom random)

Initialises generator to create new verifiers

Parameters:

N - The safe prime to use (see DHParametersGenerator)

g - The group parameter to use (see DHParametersGenerator)

digest - The digest to use. The same digest type will need to be used later for the actual authentication attempt. Also note that the final session key size is dependent on the chosen digest.

random - The source used to randomise the private exponent before it is raised, may be null to take the default from CryptoServicesRegistrar.

init

public void init(SRP6Group group,
 TlsHash digest)

init

public void init(SRP6Group group,
 TlsHash digest,
 SecureRandom random)

generateVerifier

public BigInteger generateVerifier(byte[] salt,
 byte[] identity,
 byte[] password)

Creates a new SRP verifier

Parameters:

salt - The salt to use, generally should be large and random

identity - The user's identifying information (eg. username)

password - The user's password

Returns:

A new verifier for use in future SRP authentication