Package org.bouncycastle.jcajce.spec

Class TLSKeyMaterialSpec

java.lang.Object

org.bouncycastle.jcajce.spec.TLSKeyMaterialSpec

All Implemented Interfaces:

KeySpec

public class TLSKeyMaterialSpec
extends Object
implements KeySpec

Key Spec class for generating TLS key/iv material.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	KEY_EXPANSION
static final String	MASTER_SECRET

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
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 Details

MASTER_SECRET

public static final String MASTER_SECRET

See Also:

• Constant Field Values

KEY_EXPANSION

public static final String KEY_EXPANSION

See Also:

• Constant Field Values

Constructor Details

TLSKeyMaterialSpec

public TLSKeyMaterialSpec(byte[] secret,
 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 Details

getLabel

public 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.