5 RSA_sign_ASN1_OCTET_STRING, RSA_verify_ASN1_OCTET_STRING - RSA signatures
9 #include <openssl/rsa.h>
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);
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);
21 RSA_sign_ASN1_OCTET_STRING() signs the octet string B<m> of size
22 B<m_len> using the private key B<rsa> represented in DER using PKCS #1
23 padding. It stores the signature in B<sigret> and the signature size
24 in B<siglen>. B<sigret> must point to B<RSA_size(rsa)> bytes of
29 The random number generator must be seeded when calling
30 RSA_sign_ASN1_OCTET_STRING().
31 If the automatic seeding or reseeding of the OpenSSL CSPRNG fails due to
32 external circumstances (see L<RAND(7)>), the operation will fail.
34 RSA_verify_ASN1_OCTET_STRING() verifies that the signature B<sigbuf>
35 of size B<siglen> is the DER representation of a given octet string
36 B<m> of size B<m_len>. B<dummy> is ignored. B<rsa> is the signer's
41 RSA_sign_ASN1_OCTET_STRING() returns 1 on success, 0 otherwise.
42 RSA_verify_ASN1_OCTET_STRING() returns 1 on successful verification, 0
45 The error codes can be obtained by L<ERR_get_error(3)>.
49 These functions serve no recognizable purpose.
54 L<RAND_bytes(3)>, L<RSA_sign(3)>,
60 Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
62 Licensed under the Apache License 2.0 (the "License"). You may not use
63 this file except in compliance with the License. You can obtain a copy
64 in the file LICENSE in the source distribution or at
65 L<https://www.openssl.org/source/license.html>.