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/*
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* Copyright (C) 2017 Red Hat, Inc.
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*
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* Authors: Daiki Ueno
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*
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* This file is part of GnuTLS.
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*
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* The GnuTLS is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>
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*
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*/
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#include "gnutls_int.h"
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#include "errors.h"
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#include <common.h>
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#include <x509.h>
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#include <x509_int.h>
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/**
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* gnutls_x509_spki_init:
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* @spki: A pointer to the type to be initialized
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*
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* This function will initialize a SubjectPublicKeyInfo structure used
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* in PKIX. The structure is used to set additional parameters
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* in the public key information field of a certificate.
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*
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* Returns: On success, %GNUTLS_E_SUCCESS (0) is returned, otherwise a
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* negative error value.
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*
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* Since: 3.6.0
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*
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**/
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int
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gnutls_x509_spki_init(gnutls_x509_spki_t *spki)
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{
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gnutls_x509_spki_t tmp;
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FAIL_IF_LIB_ERROR;
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tmp =
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gnutls_calloc(1, sizeof(gnutls_x509_spki_st));
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if (!tmp)
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return GNUTLS_E_MEMORY_ERROR;
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*spki = tmp;
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return 0; /* success */
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}
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/**
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* gnutls_x509_spki_deinit:
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* @spki: the SubjectPublicKeyInfo structure
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*
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* This function will deinitialize a SubjectPublicKeyInfo structure.
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*
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* Since: 3.6.0
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*
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**/
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void
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gnutls_x509_spki_deinit(gnutls_x509_spki_t spki)
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{
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gnutls_free(spki);
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}
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/**
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* gnutls_x509_spki_set_rsa_pss_params:
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* @spki: the SubjectPublicKeyInfo structure
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* @dig: a digest algorithm of type #gnutls_digest_algorithm_t
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* @salt_size: the size of salt string
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*
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* This function will set the public key parameters for
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* an RSA-PSS algorithm, in the SubjectPublicKeyInfo structure.
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*
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* Since: 3.6.0
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*
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**/
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void
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gnutls_x509_spki_set_rsa_pss_params(gnutls_x509_spki_t spki,
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gnutls_digest_algorithm_t dig,
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unsigned int salt_size)
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{
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spki->pk = GNUTLS_PK_RSA_PSS;
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spki->rsa_pss_dig = dig;
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spki->salt_size = salt_size;
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}
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/**
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* gnutls_x509_spki_get_rsa_pss_params:
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* @spki: the SubjectPublicKeyInfo structure
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* @dig: if non-NULL, it will hold the digest algorithm
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* @salt_size: if non-NULL, it will hold the salt size
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*
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* This function will get the public key algorithm parameters
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* of RSA-PSS type.
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*
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* Returns: zero if the parameters are present or a negative
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* value on error.
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*
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* Since: 3.6.0
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*
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**/
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int
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gnutls_x509_spki_get_rsa_pss_params(gnutls_x509_spki_t spki,
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gnutls_digest_algorithm_t *dig,
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unsigned int *salt_size)
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{
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if (spki->pk == 0)
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return gnutls_assert_val(GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE);
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if (spki->pk != GNUTLS_PK_RSA_PSS)
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return gnutls_assert_val(GNUTLS_E_INVALID_REQUEST);
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if (dig)
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*dig = spki->rsa_pss_dig;
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if (salt_size)
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*salt_size = spki->salt_size;
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return 0;
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}
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