88 lines
3.1 KiB
C
88 lines
3.1 KiB
C
/*
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Copyright (c) 2014 Anton Titov.
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Copyright (c) 2014 pCloud Ltd. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met: Redistributions of source code must retain the above
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copyright notice, this list of conditions and the following
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disclaimer. Redistributions in binary form must reproduce the
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above copyright notice, this list of conditions and the following
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disclaimer in the documentation and/or other materials provided
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with the distribution. Neither the name of pCloud Ltd nor the
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names of its contributors may be used to endorse or promote
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products derived from this software without specific prior written
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permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL pCloud
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Ltd BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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DAMAGE.
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*/
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#include "pssl.h"
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#include "plibs.h"
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#include "pmemlock.h"
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#include "psynclib.h"
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#include <stddef.h>
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#include <string.h>
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static pthread_mutex_t rsa_decr_mutex = PTHREAD_MUTEX_INITIALIZER;
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static void psync_ssl_free_psync_encrypted_data_t(psync_encrypted_data_t e) {
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psync_ssl_memclean(e->data, e->datalen);
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psync_locked_free(e);
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}
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void psync_ssl_rsa_free_binary(psync_binary_rsa_key_t bin) {
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psync_ssl_free_psync_encrypted_data_t(bin);
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}
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void psync_ssl_free_symmetric_key(psync_symmetric_key_t key) {
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psync_ssl_memclean(key->key, key->keylen);
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psync_locked_free(key);
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}
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psync_encrypted_symmetric_key_t
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psync_ssl_alloc_encrypted_symmetric_key(size_t len) {
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psync_encrypted_symmetric_key_t ret;
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ret = psync_malloc(offsetof(psync_encrypted_data_struct_t, data) + len);
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ret->datalen = len;
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return ret;
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}
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psync_encrypted_symmetric_key_t
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psync_ssl_copy_encrypted_symmetric_key(psync_encrypted_symmetric_key_t src) {
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psync_encrypted_symmetric_key_t ret;
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ret = psync_malloc(offsetof(psync_encrypted_data_struct_t, data) +
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src->datalen);
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ret->datalen = src->datalen;
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memcpy(ret->data, src->data, src->datalen);
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return ret;
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}
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psync_symmetric_key_t psync_ssl_rsa_decrypt_symm_key_lock(
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psync_rsa_privatekey_t *rsa,
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const psync_encrypted_symmetric_key_t *enckey) {
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psync_symmetric_key_t sym_key;
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debug(D_NOTICE, "Get RSA decrypt key lock.");
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pthread_mutex_lock(&rsa_decr_mutex);
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sym_key = psync_ssl_rsa_decrypt_symmetric_key(*rsa, *enckey);
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pthread_mutex_unlock(&rsa_decr_mutex);
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debug(D_NOTICE, "RSA decrypt key Lock released.");
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return sym_key;
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}
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