mirror of https://github.com/openssl/openssl.git
60 lines
1.7 KiB
Plaintext
60 lines
1.7 KiB
Plaintext
=pod
|
|
|
|
=head1 NAME
|
|
|
|
DSA_SIG_get0, DSA_SIG_set0,
|
|
DSA_SIG_new, DSA_SIG_free - allocate and free DSA signature objects
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
#include <openssl/dsa.h>
|
|
|
|
DSA_SIG *DSA_SIG_new(void);
|
|
void DSA_SIG_free(DSA_SIG *a);
|
|
void DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps);
|
|
int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s);
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
DSA_SIG_new() allocates an empty B<DSA_SIG> structure.
|
|
|
|
DSA_SIG_free() frees the B<DSA_SIG> structure and its components. The
|
|
values are erased before the memory is returned to the system.
|
|
If the argument is NULL, nothing is done.
|
|
|
|
DSA_SIG_get0() returns internal pointers to the B<r> and B<s> values contained
|
|
in B<sig>.
|
|
|
|
The B<r> and B<s> values can be set by calling DSA_SIG_set0() and passing the
|
|
new values for B<r> and B<s> as parameters to the function. Calling this
|
|
function transfers the memory management of the values to the DSA_SIG object,
|
|
and therefore the values that have been passed in should not be freed directly
|
|
after this function has been called.
|
|
|
|
=head1 RETURN VALUES
|
|
|
|
If the allocation fails, DSA_SIG_new() returns B<NULL> and sets an
|
|
error code that can be obtained by
|
|
L<ERR_get_error(3)>. Otherwise it returns a pointer
|
|
to the newly allocated structure.
|
|
|
|
DSA_SIG_free() returns no value.
|
|
|
|
DSA_SIG_set0() returns 1 on success or 0 on failure.
|
|
|
|
=head1 SEE ALSO
|
|
|
|
L<EVP_PKEY_new(3)>, L<EVP_PKEY_free(3)>, L<EVP_PKEY_get_bn_param(3)>,
|
|
L<ERR_get_error(3)>
|
|
|
|
=head1 COPYRIGHT
|
|
|
|
Copyright 2000-2024 The OpenSSL Project Authors. All Rights Reserved.
|
|
|
|
Licensed under the Apache License 2.0 (the "License"). You may not use
|
|
this file except in compliance with the License. You can obtain a copy
|
|
in the file LICENSE in the source distribution or at
|
|
L<https://www.openssl.org/source/license.html>.
|
|
|
|
=cut
|