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Edit File : DSA_meth_get_verify.3 \| Size : 15.30 KB
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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" DSA_meth_new, DSA_meth_free, DSA_meth_dup, DSA_meth_get0_name, DSA_meth_set1_name, DSA_meth_get_flags, DSA_meth_set_flags, DSA_meth_get0_app_data, DSA_meth_set0_app_data, DSA_meth_get_sign, DSA_meth_set_sign, DSA_meth_get_sign_setup, DSA_meth_set_sign_setup, DSA_meth_get_verify, DSA_meth_set_verify, DSA_meth_get_mod_exp, DSA_meth_set_mod_exp, DSA_meth_get_bn_mod_exp, DSA_meth_set_bn_mod_exp, DSA_meth_get_init, DSA_meth_set_init, DSA_meth_get_finish, DSA_meth_set_finish, DSA_meth_get_paramgen, DSA_meth_set_paramgen, DSA_meth_get_keygen, DSA_meth_set_keygen \- Routines to build up DSA methods .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& #include <openssl/dsa.h> \& \& DSA_METHOD DSA_meth_new(const char name, int flags); \& \& void DSA_meth_free(DSA_METHOD dsam); \& \& DSA_METHOD DSA_meth_dup(const DSA_METHOD meth); \& \& const char DSA_meth_get0_name(const DSA_METHOD dsam); \& int DSA_meth_set1_name(DSA_METHOD dsam, const char name); \& \& int DSA_meth_get_flags(const DSA_METHOD dsam); \& int DSA_meth_set_flags(DSA_METHOD dsam, int flags); \& \& void DSA_meth_get0_app_data(const DSA_METHOD dsam); \& int DSA_meth_set0_app_data(DSA_METHOD dsam, void app_data); \& \& DSA_SIG (DSA_meth_get_sign(const DSA_METHOD dsam))(const unsigned char , \& int, DSA ); \& int DSA_meth_set_sign(DSA_METHOD dsam, DSA_SIG (sign)(const unsigned char , \& int, DSA )); \& \& int (DSA_meth_get_sign_setup(const DSA_METHOD dsam))(DSA , BN_CTX ,$ \& BIGNUM , BIGNUM ); \& int DSA_meth_set_sign_setup(DSA_METHOD dsam, int (sign_setup)(DSA , BN_CTX , \& BIGNUM , BIGNUM )); \& \& int (DSA_meth_get_verify(const DSA_METHOD dsam))(const unsigned char , \& int, DSA_SIG , DSA ); \& int DSA_meth_set_verify(DSA_METHOD dsam, int (verify)(const unsigned char , \& int, DSA_SIG , DSA )); \& \& int (DSA_meth_get_mod_exp(const DSA_METHOD dsam))(DSA dsa, BIGNUM rr, BIGNUM a1, \& BIGNUM p1, BIGNUM a2, BIGNUM p2, \& BIGNUM m, BN_CTX ctx, \& BN_MONT_CTX in_mont); \& int DSA_meth_set_mod_exp(DSA_METHOD dsam, int (mod_exp)(DSA dsa, BIGNUM rr, \& BIGNUM a1, BIGNUM p1, \& BIGNUM a2, BIGNUM p2, \& BIGNUM m, BN_CTX ctx, \& BN_MONT_CTX mont)); \& \& int (DSA_meth_get_bn_mod_exp(const DSA_METHOD dsam))(DSA dsa, BIGNUM r, BIGNUM a, \& const BIGNUM p, const BIGNUM m, \& BN_CTX ctx, BN_MONT_CTX mont); \& int DSA_meth_set_bn_mod_exp(DSA_METHOD dsam, int (bn_mod_exp)(DSA dsa, \& BIGNUM r, \& BIGNUM a, \& const BIGNUM p, \& const BIGNUM m, \& BN_CTX ctx, \& BN_MONT_CTX mont)); \& \& int (DSA_meth_get_init(const DSA_METHOD dsam))(DSA ); \& int DSA_meth_set_init(DSA_METHOD dsam, int (init)(DSA )); \& \& int (DSA_meth_get_finish(const DSA_METHOD dsam))(DSA ); \& int DSA_meth_set_finish(DSA_METHOD dsam, int (finish)(DSA )); \& \& int (DSA_meth_get_paramgen(const DSA_METHOD dsam))(DSA , int, \& const unsigned char , \& int, int , unsigned long , \& BN_GENCB ); \& int DSA_meth_set_paramgen(DSA_METHOD dsam, \& int (paramgen)(DSA , int, const unsigned char , \& int, int , unsigned long , BN_GENCB )); \& \& int (DSA_meth_get_keygen(const DSA_METHOD dsam))(DSA ); \& int DSA_meth_set_keygen(DSA_METHOD dsam, int (keygen)(DSA )); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" The \fB\s-1DSA_METHOD\s0\fR type is a structure used for the provision of custom \s-1DSA\s0 implementations. It provides a set of functions used by OpenSSL for the implementation of the various \s-1DSA\s0 capabilities. See the dsa page for more information. .PP \&\fBDSA_meth_new()\fR creates a new \fB\s-1DSA_METHOD\s0\fR structure. It should be given a unique \fBname\fR and a set of \fBflags\fR. The \fBname\fR should be a \s-1NULL\s0 terminated string, which will be duplicated and stored in the \fB\s-1DSA_METHOD\s0\fR object. It is the callers responsibility to free the original string. The flags will be used during the construction of a new \fB\s-1DSA\s0\fR object based on this \fB\s-1DSA_METHOD\s0\fR. Any new \fB\s-1DSA\s0\fR object will have those flags set by default. .PP \&\fBDSA_meth_dup()\fR creates a duplicate copy of the \fB\s-1DSA_METHOD\s0\fR object passed as a parameter. This might be useful for creating a new \fB\s-1DSA_METHOD\s0\fR based on an existing one, but with some differences. .PP \&\fBDSA_meth_free()\fR destroys a \fB\s-1DSA_METHOD\s0\fR structure and frees up any memory associated with it. .PP \&\fBDSA_meth_get0_name()\fR will return a pointer to the name of this \s-1DSA_METHOD.\s0 This is a pointer to the internal name string and so should not be freed by the caller. \fBDSA_meth_set1_name()\fR sets the name of the \s-1DSA_METHOD\s0 to \fBname\fR. The string is duplicated and the copy is stored in the \s-1DSA_METHOD\s0 structure, so the caller remains responsible for freeing the memory associated with the name. .PP \&\fBDSA_meth_get_flags()\fR returns the current value of the flags associated with this \&\s-1DSA_METHOD.\s0 \fBDSA_meth_set_flags()\fR provides the ability to set these flags. .PP The functions \fBDSA_meth_get0_app_data()\fR and \fBDSA_meth_set0_app_data()\fR provide the ability to associate implementation specific data with the \s-1DSA_METHOD.\s0 It is the application's responsibility to free this data before the \s-1DSA_METHOD\s0 is freed via a call to \fBDSA_meth_free()\fR. .PP \&\fBDSA_meth_get_sign()\fR and \fBDSA_meth_set_sign()\fR get and set the function used for creating a \s-1DSA\s0 signature respectively. This function will be called in response to the application calling \fBDSA_do_sign()\fR (or \fBDSA_sign()\fR). The parameters for the function have the same meaning as for \fBDSA_do_sign()\fR. .PP \&\fBDSA_meth_get_sign_setup()\fR and \fBDSA_meth_set_sign_setup()\fR get and set the function used for precalculating the \s-1DSA\s0 signature values \fBk^\-1\fR and \fBr\fR. This function will be called in response to the application calling \fBDSA_sign_setup()\fR. The parameters for the function have the same meaning as for \fBDSA_sign_setup()\fR. .PP \&\fBDSA_meth_get_verify()\fR and \fBDSA_meth_set_verify()\fR get and set the function used for verifying a \s-1DSA\s0 signature respectively. This function will be called in response to the application calling \fBDSA_do_verify()\fR (or \fBDSA_verify()\fR). The parameters for the function have the same meaning as for \fBDSA_do_verify()\fR. .PP \&\fBDSA_meth_get_mod_exp()\fR and \fBDSA_meth_set_mod_exp()\fR get and set the function used for computing the following value: .PP .Vb 1 \& rr = a1^p1 * a2^p2 mod m .Ve .PP This function will be called by the default OpenSSL method during verification of a \s-1DSA\s0 signature. The result is stored in the \fBrr\fR parameter. This function may be \s-1NULL.\s0 .PP \&\fBDSA_meth_get_bn_mod_exp()\fR and \fBDSA_meth_set_bn_mod_exp()\fR get and set the function used for computing the following value: .PP .Vb 1 \& r = a ^ p mod m .Ve .PP This function will be called by the default OpenSSL function for \&\fBDSA_sign_setup()\fR. The result is stored in the \fBr\fR parameter. This function may be \s-1NULL.\s0 .PP \&\fBDSA_meth_get_init()\fR and \fBDSA_meth_set_init()\fR get and set the function used for creating a new \s-1DSA\s0 instance respectively. This function will be called in response to the application calling \fBDSA_new()\fR (if the current default \&\s-1DSA_METHOD\s0 is this one) or \fBDSA_new_method()\fR. The \fBDSA_new()\fR and \fBDSA_new_method()\fR functions will allocate the memory for the new \s-1DSA\s0 object, and a pointer to this newly allocated structure will be passed as a parameter to the function. This function may be \s-1NULL.\s0 .PP \&\fBDSA_meth_get_finish()\fR and \fBDSA_meth_set_finish()\fR get and set the function used for destroying an instance of a \s-1DSA\s0 object respectively. This function will be called in response to the application calling \fBDSA_free()\fR. A pointer to the \s-1DSA\s0 to be destroyed is passed as a parameter. The destroy function should be used for \s-1DSA\s0 implementation specific clean up. The memory for the \s-1DSA\s0 itself should not be freed by this function. This function may be \s-1NULL.\s0 .PP \&\fBDSA_meth_get_paramgen()\fR and \fBDSA_meth_set_paramgen()\fR get and set the function used for generating \s-1DSA\s0 parameters respectively. This function will be called in response to the application calling \fBDSA_generate_parameters_ex()\fR (or \&\fBDSA_generate_parameters()\fR). The parameters for the function have the same meaning as for \fBDSA_generate_parameters_ex()\fR. .PP \&\fBDSA_meth_get_keygen()\fR and \fBDSA_meth_set_keygen()\fR get and set the function used for generating a new \s-1DSA\s0 key pair respectively. This function will be called in response to the application calling \fBDSA_generate_key()\fR. The parameter for the function has the same meaning as for \fBDSA_generate_key()\fR. .SH "RETURN VALUES" .IX Header "RETURN VALUES" \&\fBDSA_meth_new()\fR and \fBDSA_meth_dup()\fR return the newly allocated \s-1DSA_METHOD\s0 object or \s-1NULL\s0 on failure. .PP \&\fBDSA_meth_get0_name()\fR and \fBDSA_meth_get_flags()\fR return the name and flags associated with the \s-1DSA_METHOD\s0 respectively. .PP All other DSA_meth_get_() functions return the appropriate function pointer that has been set in the \s-1DSA_METHOD,\s0 or \s-1NULL\s0 if no such pointer has yet been set. .PP \&\fBDSA_meth_set1_name()\fR and all DSA_meth_set_() functions return 1 on success or 0 on failure. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBDSA_new\fR\\|(3), \fBDSA_new\fR\\|(3), \fBDSA_generate_parameters\fR\\|(3), \fBDSA_generate_key\fR\\|(3), \&\fBDSA_dup_DH\fR\\|(3), \fBDSA_do_sign\fR\\|(3), \fBDSA_set_method\fR\\|(3), \fBDSA_SIG_new\fR\\|(3), \&\fBDSA_sign\fR\\|(3), \fBDSA_size\fR\\|(3), \fBDSA_get0_pqg\fR\\|(3) .SH "HISTORY" .IX Header "HISTORY" The functions described here were added in OpenSSL 1.1.0. .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2016\-2018 The OpenSSL Project Authors. All Rights Reserved. .PP Licensed under the OpenSSL license (the \(L"License\(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>. Back

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.\" ========================================================================
.\"
.IX Title "DSA_METH_NEW 3"
.TH DSA_METH_NEW 3 "2023-09-11" "1.1.1w" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
DSA_meth_new, DSA_meth_free, DSA_meth_dup, DSA_meth_get0_name, DSA_meth_set1_name, DSA_meth_get_flags, DSA_meth_set_flags, DSA_meth_get0_app_data, DSA_meth_set0_app_data, DSA_meth_get_sign, DSA_meth_set_sign, DSA_meth_get_sign_setup, DSA_meth_set_sign_setup, DSA_meth_get_verify, DSA_meth_set_verify, DSA_meth_get_mod_exp, DSA_meth_set_mod_exp, DSA_meth_get_bn_mod_exp, DSA_meth_set_bn_mod_exp, DSA_meth_get_init, DSA_meth_set_init, DSA_meth_get_finish, DSA_meth_set_finish, DSA_meth_get_paramgen, DSA_meth_set_paramgen, DSA_meth_get_keygen, DSA_meth_set_keygen \- Routines to build up DSA methods
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/dsa.h>
\&
\& DSA_METHOD *DSA_meth_new(const char *name, int flags);
\&
\& void DSA_meth_free(DSA_METHOD *dsam);
\&
\& DSA_METHOD *DSA_meth_dup(const DSA_METHOD *meth);
\&
\& const char *DSA_meth_get0_name(const DSA_METHOD *dsam);
\& int DSA_meth_set1_name(DSA_METHOD *dsam, const char *name);
\&
\& int DSA_meth_get_flags(const DSA_METHOD *dsam);
\& int DSA_meth_set_flags(DSA_METHOD *dsam, int flags);
\&
\& void *DSA_meth_get0_app_data(const DSA_METHOD *dsam);
\& int DSA_meth_set0_app_data(DSA_METHOD *dsam, void *app_data);
\&
\& DSA_SIG *(*DSA_meth_get_sign(const DSA_METHOD *dsam))(const unsigned char *,
\&                                                       int, DSA *);
\& int DSA_meth_set_sign(DSA_METHOD *dsam, DSA_SIG *(*sign)(const unsigned char *,
\&                                                          int, DSA *));
\&
\& int (*DSA_meth_get_sign_setup(const DSA_METHOD *dsam))(DSA *, BN_CTX *,$
\&                                                        BIGNUM **, BIGNUM **);
\& int DSA_meth_set_sign_setup(DSA_METHOD *dsam, int (*sign_setup)(DSA *, BN_CTX *,
\&                                                                 BIGNUM **, BIGNUM **));
\&
\& int (*DSA_meth_get_verify(const DSA_METHOD *dsam))(const unsigned char *,
\&                                                    int, DSA_SIG *, DSA *);
\& int DSA_meth_set_verify(DSA_METHOD *dsam, int (*verify)(const unsigned char *,
\&                                                         int, DSA_SIG *, DSA *));
\&
\& int (*DSA_meth_get_mod_exp(const DSA_METHOD *dsam))(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
\&                                                     BIGNUM *p1, BIGNUM *a2, BIGNUM *p2,
\&                                                     BIGNUM *m, BN_CTX *ctx,
\&                                                     BN_MONT_CTX *in_mont);
\& int DSA_meth_set_mod_exp(DSA_METHOD *dsam, int (*mod_exp)(DSA *dsa, BIGNUM *rr,
\&                                                           BIGNUM *a1, BIGNUM *p1,
\&                                                           BIGNUM *a2, BIGNUM *p2,
\&                                                           BIGNUM *m, BN_CTX *ctx,
\&                                                           BN_MONT_CTX *mont));
\&
\& int (*DSA_meth_get_bn_mod_exp(const DSA_METHOD *dsam))(DSA *dsa, BIGNUM *r, BIGNUM *a,
\&                                                        const BIGNUM *p, const BIGNUM *m,
\&                                                        BN_CTX *ctx, BN_MONT_CTX *mont);
\& int DSA_meth_set_bn_mod_exp(DSA_METHOD *dsam, int (*bn_mod_exp)(DSA *dsa,
\&                                                                 BIGNUM *r,
\&                                                                 BIGNUM *a,
\&                                                                 const BIGNUM *p,
\&                                                                 const BIGNUM *m,
\&                                                                 BN_CTX *ctx,
\&                                                                 BN_MONT_CTX *mont));
\&
\& int (*DSA_meth_get_init(const DSA_METHOD *dsam))(DSA *);
\& int DSA_meth_set_init(DSA_METHOD *dsam, int (*init)(DSA *));
\&
\& int (*DSA_meth_get_finish(const DSA_METHOD *dsam))(DSA *);
\& int DSA_meth_set_finish(DSA_METHOD *dsam, int (*finish)(DSA *));
\&
\& int (*DSA_meth_get_paramgen(const DSA_METHOD *dsam))(DSA *, int,
\&                                                      const unsigned char *,
\&                                                      int, int *, unsigned long *,
\&                                                      BN_GENCB *);
\& int DSA_meth_set_paramgen(DSA_METHOD *dsam,
\&                           int (*paramgen)(DSA *, int, const unsigned char *,
\&                                           int, int *, unsigned long *, BN_GENCB *));
\&
\& int (*DSA_meth_get_keygen(const DSA_METHOD *dsam))(DSA *);
\& int DSA_meth_set_keygen(DSA_METHOD *dsam, int (*keygen)(DSA *));
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The \fB\s-1DSA_METHOD\s0\fR type is a structure used for the provision of custom \s-1DSA\s0
implementations. It provides a set of functions used by OpenSSL for the
implementation of the various \s-1DSA\s0 capabilities. See the dsa page for more
information.
.PP
\&\fBDSA_meth_new()\fR creates a new \fB\s-1DSA_METHOD\s0\fR structure. It should be given a
unique \fBname\fR and a set of \fBflags\fR. The \fBname\fR should be a \s-1NULL\s0 terminated
string, which will be duplicated and stored in the \fB\s-1DSA_METHOD\s0\fR object. It is
the callers responsibility to free the original string. The flags will be used
during the construction of a new \fB\s-1DSA\s0\fR object based on this \fB\s-1DSA_METHOD\s0\fR. Any
new \fB\s-1DSA\s0\fR object will have those flags set by default.
.PP
\&\fBDSA_meth_dup()\fR creates a duplicate copy of the \fB\s-1DSA_METHOD\s0\fR object passed as a
parameter. This might be useful for creating a new \fB\s-1DSA_METHOD\s0\fR based on an
existing one, but with some differences.
.PP
\&\fBDSA_meth_free()\fR destroys a \fB\s-1DSA_METHOD\s0\fR structure and frees up any memory
associated with it.
.PP
\&\fBDSA_meth_get0_name()\fR will return a pointer to the name of this \s-1DSA_METHOD.\s0 This
is a pointer to the internal name string and so should not be freed by the
caller. \fBDSA_meth_set1_name()\fR sets the name of the \s-1DSA_METHOD\s0 to \fBname\fR. The
string is duplicated and the copy is stored in the \s-1DSA_METHOD\s0 structure, so the
caller remains responsible for freeing the memory associated with the name.
.PP
\&\fBDSA_meth_get_flags()\fR returns the current value of the flags associated with this
\&\s-1DSA_METHOD.\s0 \fBDSA_meth_set_flags()\fR provides the ability to set these flags.
.PP
The functions \fBDSA_meth_get0_app_data()\fR and \fBDSA_meth_set0_app_data()\fR provide the
ability to associate implementation specific data with the \s-1DSA_METHOD.\s0 It is
the application's responsibility to free this data before the \s-1DSA_METHOD\s0 is
freed via a call to \fBDSA_meth_free()\fR.
.PP
\&\fBDSA_meth_get_sign()\fR and \fBDSA_meth_set_sign()\fR get and set the function used for
creating a \s-1DSA\s0 signature respectively. This function will be
called in response to the application calling \fBDSA_do_sign()\fR (or \fBDSA_sign()\fR). The
parameters for the function have the same meaning as for \fBDSA_do_sign()\fR.
.PP
\&\fBDSA_meth_get_sign_setup()\fR and \fBDSA_meth_set_sign_setup()\fR get and set the function
used for precalculating the \s-1DSA\s0 signature values \fBk^\-1\fR and \fBr\fR. This function
will be called in response to the application calling \fBDSA_sign_setup()\fR. The
parameters for the function have the same meaning as for \fBDSA_sign_setup()\fR.
.PP
\&\fBDSA_meth_get_verify()\fR and \fBDSA_meth_set_verify()\fR get and set the function used
for verifying a \s-1DSA\s0 signature respectively. This function will be called in
response to the application calling \fBDSA_do_verify()\fR (or \fBDSA_verify()\fR). The
parameters for the function have the same meaning as for \fBDSA_do_verify()\fR.
.PP
\&\fBDSA_meth_get_mod_exp()\fR and \fBDSA_meth_set_mod_exp()\fR get and set the function used
for computing the following value:
.PP
.Vb 1
\& rr = a1^p1 * a2^p2 mod m
.Ve
.PP
This function will be called by the default OpenSSL method during verification
of a \s-1DSA\s0 signature. The result is stored in the \fBrr\fR parameter. This function
may be \s-1NULL.\s0
.PP
\&\fBDSA_meth_get_bn_mod_exp()\fR and \fBDSA_meth_set_bn_mod_exp()\fR get and set the function
used for computing the following value:
.PP
.Vb 1
\& r = a ^ p mod m
.Ve
.PP
This function will be called by the default OpenSSL function for
\&\fBDSA_sign_setup()\fR. The result is stored in the \fBr\fR parameter. This function
may be \s-1NULL.\s0
.PP
\&\fBDSA_meth_get_init()\fR and \fBDSA_meth_set_init()\fR get and set the function used
for creating a new \s-1DSA\s0 instance respectively. This function will be
called in response to the application calling \fBDSA_new()\fR (if the current default
\&\s-1DSA_METHOD\s0 is this one) or \fBDSA_new_method()\fR. The \fBDSA_new()\fR and \fBDSA_new_method()\fR
functions will allocate the memory for the new \s-1DSA\s0 object, and a pointer to this
newly allocated structure will be passed as a parameter to the function. This
function may be \s-1NULL.\s0
.PP
\&\fBDSA_meth_get_finish()\fR and \fBDSA_meth_set_finish()\fR get and set the function used
for destroying an instance of a \s-1DSA\s0 object respectively. This function will be
called in response to the application calling \fBDSA_free()\fR. A pointer to the \s-1DSA\s0
to be destroyed is passed as a parameter. The destroy function should be used
for \s-1DSA\s0 implementation specific clean up. The memory for the \s-1DSA\s0 itself should
not be freed by this function. This function may be \s-1NULL.\s0
.PP
\&\fBDSA_meth_get_paramgen()\fR and \fBDSA_meth_set_paramgen()\fR get and set the function
used for generating \s-1DSA\s0 parameters respectively. This function will be called in
response to the application calling \fBDSA_generate_parameters_ex()\fR (or
\&\fBDSA_generate_parameters()\fR). The parameters for the function have the same
meaning as for \fBDSA_generate_parameters_ex()\fR.
.PP
\&\fBDSA_meth_get_keygen()\fR and \fBDSA_meth_set_keygen()\fR get and set the function
used for generating a new \s-1DSA\s0 key pair respectively. This function will be
called in response to the application calling \fBDSA_generate_key()\fR. The parameter
for the function has the same meaning as for \fBDSA_generate_key()\fR.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fBDSA_meth_new()\fR and \fBDSA_meth_dup()\fR return the newly allocated \s-1DSA_METHOD\s0 object
or \s-1NULL\s0 on failure.
.PP
\&\fBDSA_meth_get0_name()\fR and \fBDSA_meth_get_flags()\fR return the name and flags
associated with the \s-1DSA_METHOD\s0 respectively.
.PP
All other DSA_meth_get_*() functions return the appropriate function pointer
that has been set in the \s-1DSA_METHOD,\s0 or \s-1NULL\s0 if no such pointer has yet been
set.
.PP
\&\fBDSA_meth_set1_name()\fR and all DSA_meth_set_*() functions return 1 on success or
0 on failure.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBDSA_new\fR\|(3), \fBDSA_new\fR\|(3), \fBDSA_generate_parameters\fR\|(3), \fBDSA_generate_key\fR\|(3),
\&\fBDSA_dup_DH\fR\|(3), \fBDSA_do_sign\fR\|(3), \fBDSA_set_method\fR\|(3), \fBDSA_SIG_new\fR\|(3),
\&\fBDSA_sign\fR\|(3), \fBDSA_size\fR\|(3), \fBDSA_get0_pqg\fR\|(3)
.SH "HISTORY"
.IX Header "HISTORY"
The functions described here were added in OpenSSL 1.1.0.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2016\-2018 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the OpenSSL license (the \*(L"License\*(R").  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file \s-1LICENSE\s0 in the source distribution or at
<https://www.openssl.org/source/license.html>.

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