141 lines
3.7 KiB
C
141 lines
3.7 KiB
C
/*
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* libZRTP SDK library, implements the ZRTP secure VoIP protocol.
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* Copyright (c) 2006-2009 Philip R. Zimmermann. All rights reserved.
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* Contact: http://philzimmermann.com
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* For licensing and other legal details, see the file zrtp_legal.c.
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*
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* Viktor Krykun <v.krikun at zfoneproject.com>
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*/
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#include <setjmp.h>
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#include <stdio.h>
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#include "zrtp.h"
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#include "cmockery/cmockery.h"
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zrtp_global_t *zrtp;
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extern zrtp_dk_ctx *zrtp_dk_init(zrtp_cipher_t *cipher, zrtp_stringn_t *key, zrtp_stringn_t *salt);
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extern zrtp_status_t zrtp_derive_key(zrtp_dk_ctx *ctx, zrtp_srtp_prf_label label, zrtp_stringn_t *result_key);
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extern void zrtp_dk_deinit(zrtp_dk_ctx *ctx);
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static uint8_t dk_master_key[16] = {
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0xE1, 0xF9, 0x7A, 0x0D, 0x3E, 0x01, 0x8B, 0xE0,
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0xD6, 0x4F, 0xA3, 0x2C, 0x06, 0xDE, 0x41, 0x39
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};
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static uint8_t dk_master_salt[14] = {
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0x0E, 0xC6, 0x75, 0xAD, 0x49, 0x8A, 0xFE, 0xEB,
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0xB6, 0x96, 0x0B, 0x3A, 0xAB, 0xE6
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};
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static uint8_t dk_cipher_key[16] = {
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0xC6, 0x1E, 0x7A, 0x93, 0x74, 0x4F, 0x39, 0xEE,
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0x10, 0x73, 0x4A, 0xFE, 0x3F, 0xF7, 0xA0, 0x87
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};
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static uint8_t dk_cipher_salt[14] = {
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0x30, 0xCB, 0xBC, 0x08, 0x86, 0x3D, 0x8C, 0x85,
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0xD4, 0x9D, 0xB3, 0x4A, 0x9A, 0xE1
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};
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static uint8_t dk_auth_key[94] = {
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0xCE, 0xBE, 0x32, 0x1F, 0x6F, 0xF7, 0x71, 0x6B,
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0x6F, 0xD4, 0xAB, 0x49, 0xAF, 0x25, 0x6A, 0x15,
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0x6D, 0x38, 0xBA, 0xA4, 0x8F, 0x0A, 0x0A, 0xCF,
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0x3C, 0x34, 0xE2, 0x35, 0x9E, 0x6C, 0xDB, 0xCE,
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0xE0, 0x49, 0x64, 0x6C, 0x43, 0xD9, 0x32, 0x7A,
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0xD1, 0x75, 0x57, 0x8E, 0xF7, 0x22, 0x70, 0x98,
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0x63, 0x71, 0xC1, 0x0C, 0x9A, 0x36, 0x9A, 0xC2,
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0xF9, 0x4A, 0x8C, 0x5F, 0xBC, 0xDD, 0xDC, 0x25,
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0x6D, 0x6E, 0x91, 0x9A, 0x48, 0xB6, 0x10, 0xEF,
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0x17, 0xC2, 0x04, 0x1E, 0x47, 0x40, 0x35, 0x76,
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0x6B, 0x68, 0x64, 0x2C, 0x59, 0xBB, 0xFC, 0x2F,
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0x34, 0xDB, 0x60, 0xDB, 0xDF, 0xB2
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};
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void setup() {
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zrtp_status_t s;
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zrtp_config_t zrtp_config;
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zrtp_config_defaults(&zrtp_config);
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s = zrtp_init(&zrtp_config, &zrtp);
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assert_int_equal(s, zrtp_status_ok);
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}
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void teardown() {
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zrtp_down(zrtp);
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}
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zrtp_status_t hex_cmp(uint8_t *a, uint8_t *b, uint32_t len)
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{
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uint32_t i;
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zrtp_status_t res = zrtp_status_ok;
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for (i = 0; i<len; i++) {
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if (a[i] != b[i]) {
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res = zrtp_status_fail;
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break;
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}
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}
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return res;
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}
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static void dk_test() {
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zrtp_status_t res;
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zrtp_string16_t master_key, master_salt, cipher_key, cipher_salt;
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zrtp_string128_t auth_key;
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zrtp_dk_ctx *ctx;
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zrtp_cipher_t *cipher = zrtp_comp_find(ZRTP_CC_CIPHER, ZRTP_CIPHER_AES128, zrtp);
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assert_non_null(cipher);
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master_key.length = master_key.max_length = 16;
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zrtp_memcpy(master_key.buffer, dk_master_key, 16);
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master_salt.length = 14;
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master_salt.max_length = 16;
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zrtp_memcpy(master_salt.buffer, dk_master_salt, 14);
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ctx = zrtp_dk_init(cipher, (zrtp_stringn_t*)&master_key, (zrtp_stringn_t*)&master_salt);
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assert_non_null(ctx);
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cipher_key.length = 16;
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cipher_key.max_length = 16;
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zrtp_derive_key(ctx, label_rtp_encryption, (zrtp_stringn_t*)&cipher_key);
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res = hex_cmp((uint8_t*)cipher_key.buffer, dk_cipher_key, cipher_key.length);
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assert_int_equal(res, zrtp_status_ok);
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cipher_salt.length = 14;
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cipher_salt.max_length = 16;
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zrtp_derive_key(ctx, label_rtp_salt, (zrtp_stringn_t*)&cipher_salt);
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res = hex_cmp((uint8_t*)cipher_salt.buffer, dk_cipher_salt, cipher_salt.length);
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assert_int_equal(res, zrtp_status_ok);
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auth_key.length = 94;
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auth_key.max_length = 128;
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zrtp_derive_key(ctx, label_rtp_msg_auth, (zrtp_stringn_t*)&auth_key);
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res = hex_cmp((uint8_t*)auth_key.buffer, dk_auth_key, auth_key.length);
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assert_int_equal(res, zrtp_status_ok);
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zrtp_dk_deinit(ctx);
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}
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int main(void) {
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const UnitTest tests[] = {
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unit_test_setup_teardown(dk_test, setup, teardown),
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};
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return run_tests(tests);
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}
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