org.bouncycastle.tls.crypto.impl.bc

Class BcX25519

java.lang.Object

org.bouncycastle.tls.crypto.impl.bc.BcX25519

All Implemented Interfaces:

TlsAgreement

public class BcX25519
extends java.lang.Object
implements TlsAgreement

Support class for X25519 using the BC light-weight library.

Field Summary

Fields

Modifier and Type	Field and Description
protected BcTlsCrypto	crypto
protected byte[]	peerPublicKey
protected byte[]	privateKey

Constructor Summary

Constructors

Constructor and Description
BcX25519(BcTlsCrypto crypto)

Method Summary

Modifier and Type	Method and Description
TlsSecret	calculateSecret() Calculate the agreed secret based on the calculator's current state.
byte[]	generateEphemeral() Generate an ephemeral key pair, returning the encoding of the public key.
void	receivePeerValue(byte[] peerValue) Pass in the public key for the peer to the agreement calculator.

Methods inherited from class java.lang.Object

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

Field Detail

crypto

protected final BcTlsCrypto crypto

privateKey

protected final byte[] privateKey

peerPublicKey

protected final byte[] peerPublicKey

Constructor Detail

BcX25519

public BcX25519(BcTlsCrypto crypto)

Method Detail

generateEphemeral

public byte[] generateEphemeral()
                         throws java.io.IOException

Description copied from interface: TlsAgreement

Generate an ephemeral key pair, returning the encoding of the public key.

Specified by:

generateEphemeral in interface TlsAgreement

Returns:

a byte encoding of the public key.

Throws:

java.io.IOException - in case of error.

receivePeerValue

public void receivePeerValue(byte[] peerValue)
                      throws java.io.IOException

Description copied from interface: TlsAgreement

Pass in the public key for the peer to the agreement calculator.

Specified by:

receivePeerValue in interface TlsAgreement

Parameters:

peerValue - a byte encoding of the peer public key.

Throws:

java.io.IOException - in case of error.

calculateSecret

public TlsSecret calculateSecret()
                          throws java.io.IOException

Description copied from interface: TlsAgreement

Calculate the agreed secret based on the calculator's current state.

Specified by:

calculateSecret in interface TlsAgreement

Returns:

the calculated secret.

Throws:

java.io.IOException - in case of error.