content: /*************************** The CRY.ME project (2023) *************************************************
   *
   *  This file is part of the CRY.ME project (https://github.com/ANSSI-FR/cry-me).
   *  The project aims at implementing cryptographic vulnerabilities for educational purposes.
   *  Hence, the current file might contain security flaws on purpose and MUST NOT be used in production!
   *  Please do not use this source code outside this scope, or use it knowingly.
   *
   *  Many files come from the Android element (https://github.com/vector-im/element-android), the
   *  Matrix SDK (https://github.com/matrix-org/matrix-android-sdk2) as well as the Android Yubikit
   *  (https://github.com/Yubico/yubikit-android) projects and have been willingly modified
   *  for the CRY.ME project purposes. The Android element, Matrix SDK and Yubikit projects are distributed
   *  under the Apache-2.0 license, and so is the CRY.ME project.
   *
   ***************************  (END OF CRY.ME HEADER)   *************************************************/
  
  /*
   * Copyright (C) 2020 Yubico.
   *
   * 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 com.yubico.yubikit.yubiotp;
  
  import java.nio.ByteBuffer;
  
  /**
   * Configures YubiKey to return static password on touch.
   */
  public class StaticPasswordSlotConfiguration extends KeyboardSlotConfiguration<StaticPasswordSlotConfiguration> {
      private static final int SCAN_CODES_SIZE = FIXED_SIZE + UID_SIZE + KEY_SIZE;
  
      /**
       * Creates a Static Password configuration with default settings.
       *
       * @param scanCodes the password to store on YubiKey as an array of keyboard scan codes.
       */
      public StaticPasswordSlotConfiguration(byte[] scanCodes) {
          if (scanCodes.length > SCAN_CODES_SIZE) {
              throw new UnsupportedOperationException("Password is too long");
          }
  
          // Scan codes are packed into fixed, uid, and key, and zero padded.
          fixed = new byte[FIXED_SIZE];
          // NB: rewind() doesn't return a ByteBuffer before Java 9.
          ByteBuffer.wrap(ByteBuffer.allocate(SCAN_CODES_SIZE).put(scanCodes).array()).get(fixed).get(uid).get(key);
  
          updateFlags(CFGFLAG_SHORT_TICKET, true);
      }
  
      @Override
      protected StaticPasswordSlotConfiguration getThis() {
          return this;
      }
  }
  