security/ConcatKDF.java

Implements the NIST SP 800-56A Concat KDF algorithm to derive cryptographic keys from a shared secret and additional information.

// Source: https://github.com/jwtk/jjwt | License: Apache-2.0 | Copyright You must retain, in the Source form of any Derivative Works
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/*
 * Copyright (C) 2021 jsonwebtoken.io
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
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 *
 *     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
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