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Hakase
2019-07-13 19:13:22 +09:00
parent 9a23f88dc2
commit 2e57f602ae
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doc/man3/BN_rand.pod
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@@ -2,30 +2,37 @@
=head1 NAME
BN_rand, BN_priv_rand, BN_pseudo_rand,
BN_rand_range, BN_priv_rand_range, BN_pseudo_rand_range
BN_rand_ex, BN_rand, BN_priv_rand_ex, BN_priv_rand, BN_pseudo_rand,
BN_rand_range_ex, BN_rand_range, BN_priv_rand_range_ex, BN_priv_rand_range,
BN_pseudo_rand_range
- generate pseudo-random number
=head1 SYNOPSIS
#include <openssl/bn.h>
int BN_rand_ex(BIGNUM *rnd, int bits, int top, int bottom, BN_CTX *ctx);
int BN_rand(BIGNUM *rnd, int bits, int top, int bottom);
int BN_priv_rand_ex(BIGNUM *rnd, int bits, int top, int bottom, BN_CTX *ctx);
int BN_priv_rand(BIGNUM *rnd, int bits, int top, int bottom);
int BN_pseudo_rand(BIGNUM *rnd, int bits, int top, int bottom);
int BN_rand_range_ex(BIGNUM *rnd, BIGNUM *range, BN_CTX *ctx);
int BN_rand_range(BIGNUM *rnd, BIGNUM *range);
int BN_priv_rand_range_ex(BIGNUM *rnd, BIGNUM *range, BN_CTX *ctx);
int BN_priv_rand_range(BIGNUM *rnd, BIGNUM *range);
int BN_pseudo_rand_range(BIGNUM *rnd, BIGNUM *range);
=head1 DESCRIPTION
BN_rand() generates a cryptographically strong pseudo-random number of
B<bits> in length and stores it in B<rnd>.
BN_rand_ex() generate a cryptographically strong pseudo-random
number of B<bits> in length and stores it in B<rnd> using the random number
generator for the library context associated with B<ctx>. The parameter B<ctx>
may be NULL in which case the default library context is used.
If B<bits> is less than zero, or too small to
accommodate the requirements specified by the B<top> and B<bottom>
parameters, an error is returned.
@@ -40,11 +47,20 @@ If B<bottom> is B<BN_RAND_BOTTOM_ODD>, the number will be odd; if it
is B<BN_RAND_BOTTOM_ANY> it can be odd or even.
If B<bits> is 1 then B<top> cannot also be B<BN_RAND_FLG_TOPTWO>.
BN_rand_range() generates a cryptographically strong pseudo-random
number B<rnd> in the range 0 E<lt>= B<rnd> E<lt> B<range>.
BN_rand() is the same as BN_rand_ex() except that the default library context
is always used.
BN_priv_rand() and BN_priv_rand_range() have the same semantics as
BN_rand() and BN_rand_range() respectively. They are intended to be
BN_rand_range_ex() generates a cryptographically strong pseudo-random
number B<rnd> in the range 0 E<lt>= B<rnd> E<lt> B<range> using the random number
generator for the library context associated with B<ctx>. The parameter B<ctx>
may be NULL in which case the default library context is used.
BN_rand_range() is the same as BN_rand_range_ex() except that the default
library context is always used.
BN_priv_rand_ex(), BN_priv_rand(), BN_priv_rand_rand_ex() and
BN_priv_rand_range() have the same semantics as BN_rand_ex(), BN_rand(),
BN_rand_range_ex() and BN_rand_range() respectively. They are intended to be
used for generating values that should remain private, and mirror the
same difference between L<RAND_bytes(3)> and L<RAND_priv_bytes(3)>.
@@ -85,6 +101,11 @@ a future release.
The
BN_priv_rand() and BN_priv_rand_range() functions were added in OpenSSL 1.1.1.
=item *
The BN_rand_ex(), BN_priv_rand_ex(), BN_rand_range_ex() and
BN_priv_rand_range_ex() functions were added in OpenSSL 3.0.
=back
=head1 COPYRIGHT