org.spongycastle.jcajce.spec

Class TLSKeyMaterialSpec

java.lang.Object

org.spongycastle.jcajce.spec.TLSKeyMaterialSpec

All Implemented Interfaces:

java.security.spec.KeySpec

public class TLSKeyMaterialSpec
extends java.lang.Object
implements java.security.spec.KeySpec

Key Spec class for generating TLS key/iv material.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	KEY_EXPANSION
static java.lang.String	MASTER_SECRET

Constructor Summary

Constructors

Constructor and Description
TLSKeyMaterialSpec(byte[] secret, java.lang.String label, int length, byte[]... seedMaterial) Constructor specifying the basic parameters for a TLS KDF

Method Summary

Modifier and Type	Method and Description
java.lang.String	getLabel() Return the label associated with this spec.
int	getLength() Return the number of bytes of key material to be generated for this spec.
byte[]	getSecret() Return the secret associated with this spec.
byte[]	getSeed() Return the full seed for the spec.

Methods inherited from class java.lang.Object

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

Field Detail

MASTER_SECRET

public static final java.lang.String MASTER_SECRET

See Also:

Constant Field Values

KEY_EXPANSION

public static final java.lang.String KEY_EXPANSION

See Also:

Constant Field Values

Constructor Detail

TLSKeyMaterialSpec

public TLSKeyMaterialSpec(byte[] secret,
                          java.lang.String label,
                          int length,
                          byte[]... seedMaterial)

Constructor specifying the basic parameters for a TLS KDF

Parameters:

secret - secret to use

label - e.g. 'master secret', or 'key expansion'

length - number of bytes of material to be generated

seedMaterial - array of seed material inputs (to be concatenated together)

Method Detail

getLabel

public java.lang.String getLabel()

Return the label associated with this spec.

Returns:

the label to be used with the TLS KDF.

getLength

public int getLength()

Return the number of bytes of key material to be generated for this spec.

Returns:

the length in bytes of the result.

getSecret

public byte[] getSecret()

Return the secret associated with this spec.

Returns:

a copy of the secret.

getSeed

public byte[] getSeed()

Return the full seed for the spec.

Returns:

a copy of the seed.