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109 lines
2.3 KiB
C
109 lines
2.3 KiB
C
/*
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* Secure eXtended Message Passing framework
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* Secure eXtended Transport layer implementation: (libsxt)
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* - very similar to SSH2/TLS
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* - using already proven and tested crypto algos
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* - better than TLS for message passing
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*
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* (c) Alexander Vdolainen 2016 <avdolainen@zoho.com>
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*
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* libsxmp is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* libsxmp 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.
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* See the GNU 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 <http://www.gnu.org/licenses/>.";
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*
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <pthread.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/mman.h>
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#include <fcntl.h>
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#ifdef WIN32
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#include <Winsock2.h>
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#define EBADE 1
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#define NETDB_SUCCESS 0
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#else
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#include <sys/select.h>
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#include <netdb.h>
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#include <unistd.h>
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#include <uuid/uuid.h>
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#endif
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#include <openssl/ssl.h>
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#include <openssl/err.h>
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#include <openssl/engine.h>
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#include <openssl/rand.h>
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#include <tdata/list.h>
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#include <sxt/ciphers.h>
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#include <sxt/lcrypt.h>
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int sxt_init(void)
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{
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/* init SSL library */
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SSL_library_init();
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OpenSSL_add_all_algorithms();
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return lcrypt_init_ciphers();
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}
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int sxt_finish(void)
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{
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EVP_cleanup();
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CRYPTO_cleanup_all_ex_data();
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return 0;
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}
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int sxt_get_random(void *data, int len, int pseudo)
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{
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if(pseudo) return RAND_bytes(data, len);
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else {
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#if OPENSSL_API_COMPAT < 0x10100000L
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RAND_pseudo_bytes(data, len);
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#else
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RAND_bytes(data, len);
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#endif
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}
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return 1;
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}
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/* wrappers */
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SHA512CTX sha512_init(void){
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SHA512CTX c = malloc(sizeof(*c));
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if (c == NULL) {
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return NULL;
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}
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SHA512_Init(c);
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return c;
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}
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void sha512_update(SHA512CTX c, const void *data, unsigned long len){
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SHA512_Update(c,data,len);
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}
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void sha512_final(unsigned char *md, SHA512CTX c) {
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SHA512_Final(md, c);
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if(c) free(c);
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}
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