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openssl/doc/man3/RSA_sign_ASN1_OCTET_STRING.pod

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Document the RSA library.
2000-01-12 06:35:21 +08:00
=pod
=head1 NAME
RSA_sign_ASN1_OCTET_STRING, RSA_verify_ASN1_OCTET_STRING - RSA signatures
=head1 SYNOPSIS
#include <openssl/rsa.h>
Clarify the deprecation warnings in the docs There was recently an instance where a user was confused by the deprecation warnings in the docs. They believed the warning applied to the immediately preceding function declarations, when it fact it applied to the following function declarations. https://mta.openssl.org/pipermail/openssl-users/2021-December/014665.html We clarify the wording to make it clear that the warning applies to the following functions. Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/17180)
2021-12-02 19:33:49 +08:00
The following functions have been deprecated since OpenSSL 3.0, and can be
hidden entirely by defining B<OPENSSL_API_COMPAT> with a suitable version value,
see L<openssl_user_macros(7)>:
rsa: document deprecated low level functions Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/11063)
2020-02-12 13:23:01 +08:00
Document the RSA library.
2000-01-12 06:35:21 +08:00
int RSA_sign_ASN1_OCTET_STRING(int dummy, unsigned char *m,
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
unsigned int m_len, unsigned char *sigret,
unsigned int *siglen, RSA *rsa);
Document the RSA library.
2000-01-12 06:35:21 +08:00
int RSA_verify_ASN1_OCTET_STRING(int dummy, unsigned char *m,
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
unsigned int m_len, unsigned char *sigbuf,
unsigned int siglen, RSA *rsa);
Document the RSA library.
2000-01-12 06:35:21 +08:00
=head1 DESCRIPTION
rsa: document deprecated low level functions Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/11063)
2020-02-12 13:23:01 +08:00
All of the functions described on this page are deprecated.
Applications should instead use EVP PKEY APIs.
Document the RSA library.
2000-01-12 06:35:21 +08:00
RSA_sign_ASN1_OCTET_STRING() signs the octet string B<m> of size
B<m_len> using the private key B<rsa> represented in DER using PKCS #1
padding. It stores the signature in B<sigret> and the signature size
in B<siglen>. B<sigret> must point to B<RSA_size(rsa)> bytes of
memory.
B<dummy> is ignored.
man: clarify the 'random number generator must be seeded' requirement The manual pages require for some API functions that the 'random number generator must be seeded' before calling the function. Initially, this was meant literally, i.e. the OpenSSL CSPRNG had to be seeded manually before calling these functions. Since version 1.1.1, the CSPRNG is seeded automatically on first use, so it's not the responsibility of the programmer anymore. Still, he needs to be aware that the seeding might fail. Reviewed-by: Paul Dale <paul.dale@oracle.com> Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> (Merged from https://github.com/openssl/openssl/pull/9257)
2019-06-27 16:12:08 +08:00
The random number generator must be seeded when calling
RSA_sign_ASN1_OCTET_STRING().
If the automatic seeding or reseeding of the OpenSSL CSPRNG fails due to
external circumstances (see L<RAND(7)>), the operation will fail.
Document the RSA library.
2000-01-12 06:35:21 +08:00
RSA_verify_ASN1_OCTET_STRING() verifies that the signature B<sigbuf>
of size B<siglen> is the DER representation of a given octet string
B<m> of size B<m_len>. B<dummy> is ignored. B<rsa> is the signer's
public key.
=head1 RETURN VALUES
RSA_sign_ASN1_OCTET_STRING() returns 1 on success, 0 otherwise.
RSA_verify_ASN1_OCTET_STRING() returns 1 on successful verification, 0
otherwise.
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
The error codes can be obtained by L<ERR_get_error(3)>.
Document the RSA library.
2000-01-12 06:35:21 +08:00
=head1 BUGS
These functions serve no recognizable purpose.
=head1 SEE ALSO
Various doc fixes. Make all mention of digest algorithm use "any supported algorithm" RT2071, some new manpages from Victor B. Wagner <vitus@cryptocom.ru>: X509_LOOKUP_hash_dir.pod X509_check_ca.pod X509_check_issued.pod RT 1600: Remove references to non-existant objects(3) Add RETURN VALUES to BIO_do_accept page. RT1818: RSA_sign Can return values other than 0 on failure. RT3634: Fix AES CBC aliases (Steffen Nurpmeso <sdaoden@yandex.com>) RT3678: Some clarifications to BIO_new_pair (Devchandra L Meetei <dlmeetei@gmail.com>) RT3787: Fix some EVP_ function return values (Laetitia Baudoin <lbaudoin@google.com>) Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-08-28 00:28:08 +08:00
L<ERR_get_error(3)>,
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<RAND_bytes(3)>, L<RSA_sign(3)>,
man: clarify the 'random number generator must be seeded' requirement The manual pages require for some API functions that the 'random number generator must be seeded' before calling the function. Initially, this was meant literally, i.e. the OpenSSL CSPRNG had to be seeded manually before calling these functions. Since version 1.1.1, the CSPRNG is seeded automatically on first use, so it's not the responsibility of the programmer anymore. Still, he needs to be aware that the seeding might fail. Reviewed-by: Paul Dale <paul.dale@oracle.com> Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> (Merged from https://github.com/openssl/openssl/pull/9257)
2019-06-27 16:12:08 +08:00
L<RSA_verify(3)>,
L<RAND(7)>
Document the RSA library.
2000-01-12 06:35:21 +08:00
rsa: document deprecated low level functions Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/11063)
2020-02-12 13:23:01 +08:00
=head1 HISTORY
All of these functions were deprecated in OpenSSL 3.0.
Add copyright to manpages Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-18 23:44:05 +08:00
=head1 COPYRIGHT
Update copyright year Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/11616)
2020-04-23 20:55:52 +08:00
Copyright 2000-2020 The OpenSSL Project Authors. All Rights Reserved.
Add copyright to manpages Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-18 23:44:05 +08:00
Following the license change, modify the boilerplates in doc/man3/ [skip ci] Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/7829)
2018-12-06 21:04:44 +08:00
Licensed under the Apache License 2.0 (the "License"). You may not use
Add copyright to manpages Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-18 23:44:05 +08:00
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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