text: /* SPDX-License-Identifier: LGPL-2.1-or-later */
  /*
   *
   *  BlueZ - Bluetooth protocol stack for Linux
   *
   *  Copyright (C) 2012-2014  Intel Corporation. All rights reserved.
   *
   *
   */
  
  #include <stdbool.h>
  #include <stdint.h>
  #include <sys/uio.h>
  
  struct bt_crypto;
  
  struct bt_crypto *bt_crypto_new(void);
  
  struct bt_crypto *bt_crypto_ref(struct bt_crypto *crypto);
  void bt_crypto_unref(struct bt_crypto *crypto);
  
  bool bt_crypto_random_bytes(struct bt_crypto *crypto,
  					void *buf, uint8_t num_bytes);
  
  bool bt_crypto_e(struct bt_crypto *crypto, const uint8_t key[16],
  			const uint8_t plaintext[16], uint8_t encrypted[16]);
  bool bt_crypto_ah(struct bt_crypto *crypto, const uint8_t k[16],
  					const uint8_t r[3], uint8_t hash[3]);
  bool bt_crypto_c1(struct bt_crypto *crypto, const uint8_t k[16],
  			const uint8_t r[16], const uint8_t pres[7],
  			const uint8_t preq[7], uint8_t iat,
  			const uint8_t ia[6], uint8_t rat,
  			const uint8_t ra[6], uint8_t res[16]);
  bool bt_crypto_s1(struct bt_crypto *crypto, const uint8_t k[16],
  			const uint8_t r1[16], const uint8_t r2[16],
  			uint8_t res[16]);
  bool bt_crypto_f4(struct bt_crypto *crypto, uint8_t u[32], uint8_t v[32],
  				uint8_t x[16], uint8_t z, uint8_t res[16]);
  bool bt_crypto_f5(struct bt_crypto *crypto, uint8_t w[32], uint8_t n1[16],
  				uint8_t n2[16], uint8_t a1[7], uint8_t a2[7],
  				uint8_t mackey[16], uint8_t ltk[16]);
  bool bt_crypto_f6(struct bt_crypto *crypto, uint8_t w[16], uint8_t n1[16],
  			uint8_t n2[16], uint8_t r[16], uint8_t io_cap[3],
  			uint8_t a1[7], uint8_t a2[7], uint8_t res[16]);
  bool bt_crypto_g2(struct bt_crypto *crypto, uint8_t u[32], uint8_t v[32],
  				uint8_t x[16], uint8_t y[16], uint32_t *val);
  bool bt_crypto_h6(struct bt_crypto *crypto, const uint8_t w[16],
  				const uint8_t keyid[4], uint8_t res[16]);
  bool bt_crypto_sign_att(struct bt_crypto *crypto, const uint8_t key[16],
  				const uint8_t *m, uint16_t m_len,
  				uint32_t sign_cnt, uint8_t signature[12]);
  bool bt_crypto_verify_att_sign(struct bt_crypto *crypto, const uint8_t key[16],
  				const uint8_t *pdu, uint16_t pdu_len);
  bool bt_crypto_gatt_hash(struct bt_crypto *crypto, struct iovec *iov,
  				size_t iov_len, uint8_t res[16]);
  