org.bouncycastle.tls.crypto.impl.bc

Class BcTlsSecret

java.lang.Object

org.bouncycastle.tls.crypto.impl.AbstractTlsSecret

org.bouncycastle.tls.crypto.impl.bc.BcTlsSecret

All Implemented Interfaces:

TlsSecret

public class BcTlsSecret
extends AbstractTlsSecret

BC light-weight support class for handling TLS secrets and deriving key material and other secrets from them.

Field Summary

Fields

Modifier and Type	Field and Description
protected BcTlsCrypto	crypto

Fields inherited from class org.bouncycastle.tls.crypto.impl.AbstractTlsSecret

data

Constructor Summary

Constructors

Constructor and Description
BcTlsSecret(BcTlsCrypto crypto, byte[] data)

Method Summary

Methods

Modifier and Type	Method and Description
TlsSecret	deriveUsingPRF(int prfAlgorithm, java.lang.String label, byte[] seed, int length) Return a new secret based on applying a PRF to this one.
protected AbstractTlsCrypto	getCrypto()
protected void	hmacHash(org.bouncycastle.crypto.Digest digest, byte[] secret, int secretOff, int secretLen, byte[] seed, byte[] output)
protected byte[]	prf_1_0(byte[] secret, byte[] labelSeed, int length)
protected byte[]	prf_1_2(int prfAlgorithm, byte[] secret, byte[] labelSeed, int length)

Methods inherited from class org.bouncycastle.tls.crypto.impl.AbstractTlsSecret

checkAlive, createCipher, destroy, encrypt, extract

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

Constructor Detail

BcTlsSecret

public BcTlsSecret(BcTlsCrypto crypto,
           byte[] data)

Method Detail

deriveUsingPRF

public TlsSecret deriveUsingPRF(int prfAlgorithm,
                       java.lang.String label,
                       byte[] seed,
                       int length)

Description copied from interface: TlsSecret

Return a new secret based on applying a PRF to this one.

Parameters:

prfAlgorithm - PRF algorithm to use.

label - the label details.

seed - the seed details.

length - the size (in bytes) of the secret to generate.

Returns:

the new secret.

getCrypto

protected AbstractTlsCrypto getCrypto()

Specified by:

getCrypto in class AbstractTlsSecret

hmacHash

protected void hmacHash(org.bouncycastle.crypto.Digest digest,
            byte[] secret,
            int secretOff,
            int secretLen,
            byte[] seed,
            byte[] output)

prf_1_0

protected byte[] prf_1_0(byte[] secret,
             byte[] labelSeed,
             int length)

prf_1_2

protected byte[] prf_1_2(int prfAlgorithm,
             byte[] secret,
             byte[] labelSeed,
             int length)