DSA_SIG_new.pod 933 字节
Newer Older
U
Ulf Möller 已提交
1 2 3 4 5 6 7 8 9 10 11
=pod

=head1 NAME

DSA_SIG_new, DSA_SIG_free - allocate and free DSA signature objects

=head1 SYNOPSIS

 #include <openssl/dsa.h>

 DSA_SIG *DSA_SIG_new(void);
D
Dr. Stephen Henson 已提交
12
 void DSA_SIG_free(DSA_SIG *a);
D
Dr. Stephen Henson 已提交
13
 void DSA_SIG_get0(BIGNUM **pr, BIGNUM **ps, const DSA_SIG *sig);
U
Ulf Möller 已提交
14 15 16 17 18 19 20 21

=head1 DESCRIPTION

DSA_SIG_new() allocates and initializes a 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.

D
Dr. Stephen Henson 已提交
22 23 24
DSA_SIG_get0() returns internal pointers the B<r> and B<s> values contained
in B<sig>. The values can then be examined or initialised.

U
Ulf Möller 已提交
25 26 27 28
=head1 RETURN VALUES

If the allocation fails, DSA_SIG_new() returns B<NULL> and sets an
error code that can be obtained by
R
Rich Salz 已提交
29
L<ERR_get_error(3)>. Otherwise it returns a pointer
U
Ulf Möller 已提交
30 31 32 33 34 35
to the newly allocated structure.

DSA_SIG_free() returns no value.

=head1 SEE ALSO

R
Rich Salz 已提交
36 37
L<dsa(3)>, L<ERR_get_error(3)>,
L<DSA_do_sign(3)>
U
Ulf Möller 已提交
38 39

=cut