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/dsa.h>
  """
  
  TYPES = """
  typedef struct dsa_st {
      /* Prime number (public) */
      BIGNUM *p;
      /* Subprime (160-bit, q | p-1, public) */
      BIGNUM *q;
      /* Generator of subgroup (public) */
      BIGNUM *g;
      /* Private key x */
      BIGNUM *priv_key;
      /* Public key y = g^x */
      BIGNUM *pub_key;
      ...;
  } DSA;
  typedef struct {
      BIGNUM *r;
      BIGNUM *s;
  } DSA_SIG;
  """
  
  FUNCTIONS = """
  DSA *DSA_generate_parameters(int, unsigned char *, int, int *, unsigned long *,
                               void (*)(int, int, void *), void *);
  int DSA_generate_key(DSA *);
  DSA *DSA_new(void);
  void DSA_free(DSA *);
  DSA_SIG *DSA_SIG_new(void);
  void DSA_SIG_free(DSA_SIG *);
  int i2d_DSA_SIG(const DSA_SIG *, unsigned char **);
  DSA_SIG *d2i_DSA_SIG(DSA_SIG **, const unsigned char **, long);
  int DSA_size(const DSA *);
  int DSA_sign(int, const unsigned char *, int, unsigned char *, unsigned int *,
               DSA *);
  int DSA_verify(int, const unsigned char *, int, const unsigned char *, int,
                 DSA *);
  """
  
  MACROS = """
  int DSA_generate_parameters_ex(DSA *, int, unsigned char *, int,
                                 int *, unsigned long *, BN_GENCB *);
  """
  
  CUSTOMIZATIONS = """
  """
  
  CONDITIONAL_NAMES = {}
  