org.bouncycastle.crypto.tls
Class TlsDHUtils

java.lang.Object
  org.bouncycastle.crypto.tls.TlsDHUtils

public class TlsDHUtils
extends java.lang.Object

Constructor Summary

TlsDHUtils()

Method Summary

static boolean	areCompatibleParameters(DHParameters a, DHParameters b)
static byte[]	calculateDHBasicAgreement(DHPublicKeyParameters publicKey, DHPrivateKeyParameters privateKey)
static AsymmetricCipherKeyPair	generateDHKeyPair(java.security.SecureRandom random, DHParameters dhParams)
static DHPrivateKeyParameters	generateEphemeralClientKeyExchange(java.security.SecureRandom random, DHParameters dhParams, java.io.OutputStream output)
static DHPrivateKeyParameters	generateEphemeralServerKeyExchange(java.security.SecureRandom random, DHParameters dhParams, java.io.OutputStream output)
static java.math.BigInteger	readDHParameter(java.io.InputStream input)
static DHPublicKeyParameters	validateDHPublicKey(DHPublicKeyParameters key)
static void	writeDHParameter(java.math.BigInteger x, java.io.OutputStream output)

Methods inherited from class java.lang.Object

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

Constructor Detail

TlsDHUtils

public TlsDHUtils()

Method Detail

areCompatibleParameters

public static boolean areCompatibleParameters(DHParameters a,
                                              DHParameters b)

calculateDHBasicAgreement

public static byte[] calculateDHBasicAgreement(DHPublicKeyParameters publicKey,
                                               DHPrivateKeyParameters privateKey)

generateDHKeyPair

public static AsymmetricCipherKeyPair generateDHKeyPair(java.security.SecureRandom random,
                                                        DHParameters dhParams)

generateEphemeralClientKeyExchange

public static DHPrivateKeyParameters generateEphemeralClientKeyExchange(java.security.SecureRandom random,
                                                                        DHParameters dhParams,
                                                                        java.io.OutputStream output)
                                                                 throws java.io.IOException

Throws:

java.io.IOException

generateEphemeralServerKeyExchange

public static DHPrivateKeyParameters generateEphemeralServerKeyExchange(java.security.SecureRandom random,
                                                                        DHParameters dhParams,
                                                                        java.io.OutputStream output)
                                                                 throws java.io.IOException

Throws:

java.io.IOException

validateDHPublicKey

public static DHPublicKeyParameters validateDHPublicKey(DHPublicKeyParameters key)
                                                 throws java.io.IOException

Throws:

java.io.IOException

readDHParameter

public static java.math.BigInteger readDHParameter(java.io.InputStream input)
                                            throws java.io.IOException

Throws:

java.io.IOException

writeDHParameter

public static void writeDHParameter(java.math.BigInteger x,
                                    java.io.OutputStream output)
                             throws java.io.IOException

Throws:

java.io.IOException