Package com.google.crypto.tink.keyderivation.internal

Class PrfBasedKeyDeriver

java.lang.Object

com.google.crypto.tink.keyderivation.internal.PrfBasedKeyDeriver

All Implemented Interfaces:

KeyDeriver

@Immutable
public final class PrfBasedKeyDeriver
extends java.lang.Object
implements KeyDeriver

Implements the KeyDeriver interface by first applying a Prf and then using the global registry to create the correct key.

Method Summary

Modifier and Type	Method	Description
static KeyDeriver	create(PrfBasedKeyDerivationKey key)
static KeyDeriver	createWithPrfPrimitiveRegistry(PrimitiveRegistry primitiveRegistry, PrfBasedKeyDerivationKey key)
Key	deriveKey(byte[] salt)

Methods inherited from class java.lang.Object

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

Method Detail

create

public static KeyDeriver create(PrfBasedKeyDerivationKey key)
                         throws java.security.GeneralSecurityException

Throws:

java.security.GeneralSecurityException

createWithPrfPrimitiveRegistry

public static KeyDeriver createWithPrfPrimitiveRegistry(PrimitiveRegistry primitiveRegistry,
                                                        PrfBasedKeyDerivationKey key)
                                                 throws java.security.GeneralSecurityException

Throws:

java.security.GeneralSecurityException

deriveKey

public Key deriveKey(byte[] salt)
              throws java.security.GeneralSecurityException

Specified by:

deriveKey in interface KeyDeriver

Throws:

java.security.GeneralSecurityException