com.google.crypto.tink.keyderivation.KeyDerivationKey Maven / Gradle / Ivy
// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
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////////////////////////////////////////////////////////////////////////////////
package com.google.crypto.tink.keyderivation;
import com.google.crypto.tink.Key;
/**
* Represents a function to derive a key.
*
* Tink Key Derivation is given by the primitive which maps a {@code byte[] salt} to a Keyset.
* For each key, a {@link KeyDerivationKey} maps a {@code byte[] salt} to a new "derived" {@code
* Key}. For a Keyset containing multiple derivation keys, the derived keyset is obtained by mapping
* each key according to this map (for the same {@code byte[] salt}), and inserting them into a new
* keyset.
*/
public abstract class KeyDerivationKey extends Key {
@Override
public abstract KeyDerivationParameters getParameters();
}