/*
 * Copyright (C) 2015 Square, Inc.
 *
 * 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.
 */
package keywhiz;

import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;

public class FakeRandom {
  private FakeRandom() {}

  /** @return a SecureRandom instance that always produces the same stream. */
  public static SecureRandom create() {
    try {
      SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
      random.setSeed(4);
      return random;
    } catch (NoSuchAlgorithmException e) {
      throw new IllegalStateException("Algorithm SHA1PRNG does not exist");
    }
  }
}