text: # This file is dual licensed under the terms of the Apache License, Version
  # 2.0, and the BSD License. See the LICENSE file in the root of this repository
  # for complete details.
  
  from __future__ import absolute_import, division, print_function
  
  INCLUDES = """
  #include <openssl/bn.h>
  """
  
  TYPES = """
  typedef ... BN_CTX;
  typedef ... BIGNUM;
  typedef int... BN_ULONG;
  """
  
  FUNCTIONS = """
  BIGNUM *BN_new(void);
  void BN_free(BIGNUM *);
  void BN_clear_free(BIGNUM *);
  
  int BN_rand(BIGNUM *, int, int, int);
  int BN_rand_range(BIGNUM *, BIGNUM *);
  
  BN_CTX *BN_CTX_new(void);
  void BN_CTX_free(BN_CTX *);
  
  void BN_CTX_start(BN_CTX *);
  BIGNUM *BN_CTX_get(BN_CTX *);
  void BN_CTX_end(BN_CTX *);
  
  BIGNUM *BN_copy(BIGNUM *, const BIGNUM *);
  BIGNUM *BN_dup(const BIGNUM *);
  
  int BN_set_word(BIGNUM *, BN_ULONG);
  BN_ULONG BN_get_word(const BIGNUM *);
  
  const BIGNUM *BN_value_one(void);
  
  char *BN_bn2hex(const BIGNUM *);
  int BN_hex2bn(BIGNUM **, const char *);
  int BN_dec2bn(BIGNUM **, const char *);
  
  int BN_bn2bin(const BIGNUM *, unsigned char *);
  BIGNUM *BN_bin2bn(const unsigned char *, int, BIGNUM *);
  
  int BN_num_bits(const BIGNUM *);
  
  int BN_cmp(const BIGNUM *, const BIGNUM *);
  int BN_add(BIGNUM *, const BIGNUM *, const BIGNUM *);
  int BN_sub(BIGNUM *, const BIGNUM *, const BIGNUM *);
  int BN_mul(BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *);
  int BN_sqr(BIGNUM *, const BIGNUM *, BN_CTX *);
  int BN_div(BIGNUM *, BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *);
  int BN_nnmod(BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *);
  int BN_mod_add(BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *,
                 BN_CTX *);
  int BN_mod_sub(BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *,
                 BN_CTX *);
  int BN_mod_mul(BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *,
                 BN_CTX *);
  int BN_mod_sqr(BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *);
  int BN_exp(BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *);
  int BN_mod_exp(BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *,
                 BN_CTX *);
  int BN_gcd(BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *);
  BIGNUM *BN_mod_inverse(BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *);
  
  int BN_set_bit(BIGNUM *, int);
  int BN_clear_bit(BIGNUM *, int);
  
  int BN_is_bit_set(const BIGNUM *, int);
  
  int BN_mask_bits(BIGNUM *, int);
  
  int BN_num_bytes(const BIGNUM *);
  
  int BN_zero(BIGNUM *);
  int BN_one(BIGNUM *);
  int BN_mod(BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *);
  
  int BN_lshift(BIGNUM *, const BIGNUM *, int);
  int BN_lshift1(BIGNUM *, BIGNUM *);
  
  int BN_rshift(BIGNUM *, BIGNUM *, int);
  int BN_rshift1(BIGNUM *, BIGNUM *);
  """
  
  CUSTOMIZATIONS = """
  """
  