old_contents: # 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.
  
  from __future__ import absolute_import, division, print_function
  
  INCLUDES = """
  #include <openssl/dsa.h>
  """
  
  TYPES = """
  typedef struct dsa_st {
      // prime number (public)
      BIGNUM *p;
      // 160-bit subprime, 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 *);
  """
  
  MACROS = """
  int DSA_generate_parameters_ex(DSA *, int, unsigned char *, int,
                                 int *, unsigned long *, BN_GENCB *);
  """
  
  CUSTOMIZATIONS = """
  """
  
  CONDITIONAL_NAMES = {}
  
new_contents: # 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.
  
  from __future__ import absolute_import, division, print_function
  
  INCLUDES = """
  #include <openssl/dsa.h>
  """
  
  TYPES = """
  typedef struct dsa_st {
      // prime number (public)
      BIGNUM *p;
      // 160-bit subprime, 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 = {}
  
subject: Add bindings for DSA_sign and DSA_verify