| =pod |
| |
| =head1 NAME |
| |
| RSA_sign_ASN1_OCTET_STRING, RSA_verify_ASN1_OCTET_STRING - RSA signatures |
| |
| =head1 SYNOPSIS |
| |
| #include <openssl/rsa.h> |
| |
| int RSA_sign_ASN1_OCTET_STRING(int dummy, unsigned char *m, |
| unsigned int m_len, unsigned char *sigret, |
| unsigned int *siglen, RSA *rsa); |
| |
| int RSA_verify_ASN1_OCTET_STRING(int dummy, unsigned char *m, |
| unsigned int m_len, unsigned char *sigbuf, |
| unsigned int siglen, RSA *rsa); |
| |
| =head1 DESCRIPTION |
| |
| 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. |
| |
| 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. |
| |
| 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. |
| |
| The error codes can be obtained by L<ERR_get_error(3)>. |
| |
| =head1 BUGS |
| |
| These functions serve no recognizable purpose. |
| |
| =head1 SEE ALSO |
| |
| L<ERR_get_error(3)>, |
| L<RAND_bytes(3)>, L<RSA_sign(3)>, |
| L<RSA_verify(3)>, |
| L<RAND(7)> |
| |
| =head1 COPYRIGHT |
| |
| Copyright 2000-2019 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 |
