1=pod
2
3=head1 NAME
4
5RSA_sign_ASN1_OCTET_STRING, RSA_verify_ASN1_OCTET_STRING - RSA signatures
6
7=head1 SYNOPSIS
8
9 #include <openssl/rsa.h>
10
11 int RSA_sign_ASN1_OCTET_STRING(int dummy, unsigned char *m,
12                                unsigned int m_len, unsigned char *sigret,
13                                unsigned int *siglen, RSA *rsa);
14
15 int RSA_verify_ASN1_OCTET_STRING(int dummy, unsigned char *m,
16                                  unsigned int m_len, unsigned char *sigbuf,
17                                  unsigned int siglen, RSA *rsa);
18
19=head1 DESCRIPTION
20
21RSA_sign_ASN1_OCTET_STRING() signs the octet string B<m> of size
22B<m_len> using the private key B<rsa> represented in DER using PKCS #1
23padding. It stores the signature in B<sigret> and the signature size
24in B<siglen>. B<sigret> must point to B<RSA_size(rsa)> bytes of
25memory.
26
27B<dummy> is ignored.
28
29The random number generator must be seeded prior to calling RSA_sign_ASN1_OCTET_STRING().
30
31RSA_verify_ASN1_OCTET_STRING() verifies that the signature B<sigbuf>
32of size B<siglen> is the DER representation of a given octet string
33B<m> of size B<m_len>. B<dummy> is ignored. B<rsa> is the signer's
34public key.
35
36=head1 RETURN VALUES
37
38RSA_sign_ASN1_OCTET_STRING() returns 1 on success, 0 otherwise.
39RSA_verify_ASN1_OCTET_STRING() returns 1 on successful verification, 0
40otherwise.
41
42The error codes can be obtained by L<ERR_get_error(3)>.
43
44=head1 BUGS
45
46These functions serve no recognizable purpose.
47
48=head1 SEE ALSO
49
50L<ERR_get_error(3)>,
51L<RAND_bytes(3)>, L<RSA_sign(3)>,
52L<RSA_verify(3)>
53
54=head1 COPYRIGHT
55
56Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
57
58Licensed under the OpenSSL license (the "License").  You may not use
59this file except in compliance with the License.  You can obtain a copy
60in the file LICENSE in the source distribution or at
61L<https://www.openssl.org/source/license.html>.
62
63=cut
64