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openssl/doc/man3/DSA_sign.pod

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Document DSA and SHA. New function BN_pseudo_rand(). Use BN_prime_checks_size(BN_num_bits(w)) rounds of Miller-Rabin when generating DSA primes (why not use BN_is_prime()?)
2000-01-28 03:31:26 +08:00
=pod
=head1 NAME
DSA_sign, DSA_sign_setup, DSA_verify - DSA signatures
=head1 SYNOPSIS
#include <openssl/dsa.h>
doc/man3: reformat the function prototypes in the synopses I tried hard to keep the lines at 80 characters or less, but in a few cases I had to punt and just indented the subsequent lines by 4 spaces. A few well-placed typedefs for callback functions would really help, but these would be part of the API, so that's probably for later. I also took the liberty of inserting empty lines in overlong blocks to provide some visual space. Reviewed-by: Rich Salz <rsalz@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/1956)
2017-01-21 02:58:49 +08:00
int DSA_sign(int type, const unsigned char *dgst, int len,
unsigned char *sigret, unsigned int *siglen, DSA *dsa);
Document DSA and SHA. New function BN_pseudo_rand(). Use BN_prime_checks_size(BN_num_bits(w)) rounds of Miller-Rabin when generating DSA primes (why not use BN_is_prime()?)
2000-01-28 03:31:26 +08:00
doc/man3: reformat the function prototypes in the synopses I tried hard to keep the lines at 80 characters or less, but in a few cases I had to punt and just indented the subsequent lines by 4 spaces. A few well-placed typedefs for callback functions would really help, but these would be part of the API, so that's probably for later. I also took the liberty of inserting empty lines in overlong blocks to provide some visual space. Reviewed-by: Rich Salz <rsalz@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/1956)
2017-01-21 02:58:49 +08:00
int DSA_sign_setup(DSA *dsa, BN_CTX *ctx, BIGNUM **kinvp, BIGNUM **rp);
Document DSA and SHA. New function BN_pseudo_rand(). Use BN_prime_checks_size(BN_num_bits(w)) rounds of Miller-Rabin when generating DSA primes (why not use BN_is_prime()?)
2000-01-28 03:31:26 +08:00
doc/man3: reformat the function prototypes in the synopses I tried hard to keep the lines at 80 characters or less, but in a few cases I had to punt and just indented the subsequent lines by 4 spaces. A few well-placed typedefs for callback functions would really help, but these would be part of the API, so that's probably for later. I also took the liberty of inserting empty lines in overlong blocks to provide some visual space. Reviewed-by: Rich Salz <rsalz@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/1956)
2017-01-21 02:58:49 +08:00
int DSA_verify(int type, const unsigned char *dgst, int len,
Fix nits in pod files. Add doc-nit-check to help find future issues. Make podchecker be almost clean. Remove trailing whitespace. Tab expansion Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-20 20:11:46 +08:00
unsigned char *sigbuf, int siglen, DSA *dsa);
Document DSA and SHA. New function BN_pseudo_rand(). Use BN_prime_checks_size(BN_num_bits(w)) rounds of Miller-Rabin when generating DSA primes (why not use BN_is_prime()?)
2000-01-28 03:31:26 +08:00
=head1 DESCRIPTION
DSA_sign() computes a digital signature on the B<len> byte message
digest B<dgst> using the private key B<dsa> and places its ASN.1 DER
encoding at B<sigret>. The length of the signature is places in
*B<siglen>. B<sigret> must point to DSA_size(B<dsa>) bytes of memory.
DSA_sign_setup() may be used to precompute part of the signing
operation in case signature generation is time-critical. It expects
B<dsa> to contain DSA parameters. It places the precomputed values
in newly allocated B<BIGNUM>s at *B<kinvp> and *B<rp>, after freeing
the old ones unless *B<kinvp> and *B<rp> are NULL. These values may
be passed to DSA_sign() in B<dsa-E<gt>kinv> and B<dsa-E<gt>r>.
B<ctx> is a pre-allocated B<BN_CTX> or NULL.
DSA_verify() verifies that the signature B<sigbuf> of size B<siglen>
matches a given message digest B<dgst> of size B<len>.
B<dsa> is the signer's public key.
The B<type> parameter is ignored.
Update docs: corrections, turn buffer docs into manpage, fold SHA1 pages into one for improved readability, add lhash manpage
2000-01-31 06:16:47 +08:00
The PRNG must be seeded before DSA_sign() (or DSA_sign_setup())
is called.
Document DSA and SHA. New function BN_pseudo_rand(). Use BN_prime_checks_size(BN_num_bits(w)) rounds of Miller-Rabin when generating DSA primes (why not use BN_is_prime()?)
2000-01-28 03:31:26 +08:00
=head1 RETURN VALUES
DSA_sign() and DSA_sign_setup() return 1 on success, 0 on error.
DSA_verify() returns 1 for a valid signature, 0 for an incorrect
signature and -1 on error. The error codes can be obtained by
Fix L<> content in manpages L<foo|foo> is sub-optimal If the xref is the same as the title, which is what we do, then you only need L<foo>. This fixes all 1457 occurrences in 349 files. Approximately. (And pod used to need both.) Reviewed-by: Richard Levitte <levitte@openssl.org>
2015-08-18 03:21:33 +08:00
L<ERR_get_error(3)>.
Document DSA and SHA. New function BN_pseudo_rand(). Use BN_prime_checks_size(BN_num_bits(w)) rounds of Miller-Rabin when generating DSA primes (why not use BN_is_prime()?)
2000-01-28 03:31:26 +08:00
=head1 CONFORMING TO
US Federal Information Processing Standard FIPS 186 (Digital Signature
Standard, DSS), ANSI X9.30
=head1 SEE ALSO
Fix referenses in section 3 manuals Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/1900)
2016-11-11 16:33:09 +08:00
L<DSA_new(3)>, L<ERR_get_error(3)>, L<RAND_bytes(3)>,
Fix L<> content in manpages L<foo|foo> is sub-optimal If the xref is the same as the title, which is what we do, then you only need L<foo>. This fixes all 1457 occurrences in 349 files. Approximately. (And pod used to need both.) Reviewed-by: Richard Levitte <levitte@openssl.org>
2015-08-18 03:21:33 +08:00
L<DSA_do_sign(3)>
Document DSA and SHA. New function BN_pseudo_rand(). Use BN_prime_checks_size(BN_num_bits(w)) rounds of Miller-Rabin when generating DSA primes (why not use BN_is_prime()?)
2000-01-28 03:31:26 +08:00
Add copyright to manpages Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-18 23:44:05 +08:00
=head1 COPYRIGHT
Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (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
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