Package 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 Object
implements TlsAgreement

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

Field Summary

Fields

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

Constructor Summary

Constructors

Constructor	Description
BcX25519(BcTlsCrypto crypto)

Method Summary

Modifier and Type	Method	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 Details

crypto

protected final BcTlsCrypto crypto

privateKey

protected final byte[] privateKey

peerPublicKey

protected final byte[] peerPublicKey

Constructor Details

BcX25519

public BcX25519(BcTlsCrypto crypto)

Method Details

generateEphemeral

public byte[] generateEphemeral()
                         throws 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:

IOException - in case of error.

receivePeerValue

public void receivePeerValue(byte[] peerValue)
                      throws 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:

IOException - in case of error.

calculateSecret

public TlsSecret calculateSecret()
                          throws 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:

IOException - in case of error.