1 .\" $OpenBSD: DSA_get0_pqg.3,v 1.4 2018/03/23 23:18:17 schwarze Exp $
2 .\" full merge up to: OpenSSL e90fc053 Jul 15 09:39:45 2017 -0400
4 .\" This file was written by Matt Caswell <matt@openssl.org>.
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51 .Dd $Mdocdate: March 23 2018 $
63 .Nd get data from and set data in a DSA object
69 .Fa "const BIGNUM **p"
70 .Fa "const BIGNUM **q"
71 .Fa "const BIGNUM **g"
83 .Fa "const BIGNUM **pub_key"
84 .Fa "const BIGNUM **priv_key"
90 .Fa "BIGNUM *priv_key"
114 object contains the parameters
119 It also contains a public key
121 and an optional private key
129 parameters can be obtained by calling
131 If the parameters have not yet been set, then
138 Otherwise, they are set to pointers to the internal representations
139 of the values that should not be freed by the application.
146 values can be set by calling
148 Calling this function transfers the memory management of the values to
150 and therefore they should not be freed by the caller.
154 function stores pointers to the internal representations
157 and to the private key in
161 if it has not yet been set.
162 If the private key has been set, then the public key must be.
164 The public and private key values can be set using
166 The public key must be
168 the first time this function is called on a given
171 The private key may be
173 On subsequent calls, either may be
175 which means the corresponding
177 field is left untouched.
179 transfers the memory management of the key values to
181 and therefore they should not be freed by the caller.
183 Values retrieved with
189 object and may therefore not be passed to
193 If needed, duplicate the received values using
195 and pass the duplicates.
212 any flags already set remain set.
213 For all three functions, multiple flags can be passed in one call,
214 OR'ed together bitwise.
219 return 1 on success or 0 on failure.
222 returns those of the given
226 or 0 if none of the given
231 returns a pointer to the
239 if no engine was set for this object.
243 .Xr DSA_generate_key 3 ,
244 .Xr DSA_generate_parameters 3 ,
250 These functions first appeared in OpenSSL 1.1.0
251 and have been available since