com.google.crypto.tink.internal

Class MutableKeyDerivationRegistry

java.lang.Object

com.google.crypto.tink.internal.MutableKeyDerivationRegistry

public final class MutableKeyDerivationRegistry
extends Object

Stores methods to create Key objects from Parameters with fixed randomness.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	MutableKeyDerivationRegistry.InsecureKeyCreator<ParametersT extends Parameters> A class to create key objects from parameters with given randomness.

Constructor Summary

Constructors

Constructor and Description
MutableKeyDerivationRegistry()

Method Summary

Modifier and Type	Method and Description
<ParametersT extends Parameters> void	add(MutableKeyDerivationRegistry.InsecureKeyCreator<ParametersT> creator, Class<ParametersT> parametersClass) Adds a new "InsecureKeyCreator" to the instance.
Key	createKeyFromRandomness(Parameters parameters, InputStream inputStream, Integer idRequirement, SecretKeyAccess access) Creates a Key from a given Parameters object and additional data.
static MutableKeyDerivationRegistry	globalInstance()

Methods inherited from class java.lang.Object

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

Constructor Detail

MutableKeyDerivationRegistry

public MutableKeyDerivationRegistry()

Method Detail

globalInstance

public static MutableKeyDerivationRegistry globalInstance()

add

public <ParametersT extends Parameters> void add(MutableKeyDerivationRegistry.InsecureKeyCreator<ParametersT> creator,
                                                 Class<ParametersT> parametersClass)
                                          throws GeneralSecurityException

Adds a new "InsecureKeyCreator" to the instance.

If a creator for this class has been added previously, the two instances have to be equal. Otherwise, this method throws a GeneralSecurityException.

Throws:

GeneralSecurityException

createKeyFromRandomness

public Key createKeyFromRandomness(Parameters parameters,
                                   InputStream inputStream,
                                   @Nullable
                                   Integer idRequirement,
                                   SecretKeyAccess access)
                            throws GeneralSecurityException

Creates a Key from a given Parameters object and additional data.

Finds the previously added creator (with add(com.google.crypto.tink.internal.MutableKeyDerivationRegistry.InsecureKeyCreator<ParametersT>, java.lang.Class<ParametersT>)) for the class given by parameters.getClass() and uses it.

Throws:

GeneralSecurityException