1/* Copyright (c) 2016, Google Inc.
2 *
3 * Permission to use, copy, modify, and/or distribute this software for any
4 * purpose with or without fee is hereby granted, provided that the above
5 * copyright notice and this permission notice appear in all copies.
6 *
7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
14
15#ifndef OPENSSL_HEADER_X509_INTERNAL_H
16#define OPENSSL_HEADER_X509_INTERNAL_H
17
18#include <openssl/base.h>
19#include <openssl/evp.h>
20#include <openssl/x509.h>
21
22#if defined(__cplusplus)
23extern "C" {
24#endif
25
26
27/* RSA-PSS functions. */
28
29/* x509_rsa_pss_to_ctx configures |ctx| for an RSA-PSS operation based on
30 * signature algorithm parameters in |sigalg| (which must have type
31 * |NID_rsassaPss|) and key |pkey|. It returns one on success and zero on
32 * error. */
33int x509_rsa_pss_to_ctx(EVP_MD_CTX *ctx, X509_ALGOR *sigalg, EVP_PKEY *pkey);
34
35/* x509_rsa_pss_to_ctx sets |algor| to the signature algorithm parameters for
36 * |ctx|, which must have been configured for an RSA-PSS signing operation. It
37 * returns one on success and zero on error. */
38int x509_rsa_ctx_to_pss(EVP_MD_CTX *ctx, X509_ALGOR *algor);
39
40/* x509_print_rsa_pss_params prints a human-readable representation of RSA-PSS
41 * parameters in |sigalg| to |bp|. It returns one on success and zero on
42 * error. */
43int x509_print_rsa_pss_params(BIO *bp, const X509_ALGOR *sigalg, int indent,
44 ASN1_PCTX *pctx);
45
46
47/* Signature algorithm functions. */
48
49/* x509_digest_sign_algorithm encodes the signing parameters of |ctx| as an
50 * AlgorithmIdentifer and saves the result in |algor|. It returns one on
51 * success, or zero on error. */
52int x509_digest_sign_algorithm(EVP_MD_CTX *ctx, X509_ALGOR *algor);
53
54/* x509_digest_verify_init sets up |ctx| for a signature verification operation
55 * with public key |pkey| and parameters from |algor|. The |ctx| argument must
56 * have been initialised with |EVP_MD_CTX_init|. It returns one on success, or
57 * zero on error. */
58int x509_digest_verify_init(EVP_MD_CTX *ctx, X509_ALGOR *sigalg,
59 EVP_PKEY *pkey);
60
61
62#if defined(__cplusplus)
63} /* extern C */
64#endif
65
66#endif /* OPENSSL_HEADER_X509_INTERNAL_H */
67