Green Sky
9ace11a0e2
8f0d505f9a feat: add ngc events 9b8216e70c refactor: Make event dispatch ordered by receive time. 814c12a6f4 cleanup: Add dynamically derived array sizes to the API. 226b23be12 cleanup: Add explicit array sizes to toxencryptsave. ef33cb4de0 cleanup: Add Toxav alias for ToxAV. 1da723b34d cleanup: Make Tox_Options a typedef. b148a2afff chore: Simplify msvc build using vcpkg. 5cac6d7eb1 cleanup: Move `tox_get_system` out of the public API. c9ca4007e3 refactor: Align group message sending with other send functions. 6c6c0b1b1b cleanup: Make setters take non-const `Tox *`. a76f758d70 cleanup: Mark arrays in the tox API as `[]` instead of `*`. baf6d1f6cf cleanup: Make array params in toxav `[]` instead of `*`. 79f55bd06a cleanup: Put the size of fixed arrays into the API types. 1e73698db2 cleanup: Add typedefs for public API int identifiers. cac074c57f chore: Add fetch-sha256 script to update bootstrap node hash. 32576656bb Make the comment capitalization uniform aff4dda17c Spellcheck tox-bootstrapd 40b5fbbe9d chore: Remove settings.yml in favour of hs-github-tools. ebafd51be7 chore: Use GPL license with https. 0e42752f0f cleanup: Move all vptr-to-ptr casts to the beginning of a function. 5407384211 cleanup: Use github actions matrix to simplify CI. 82d8265688 fix: Use QueryPerformanceCounter on windows for monotonic time. 1224e656e3 chore: Add `net_(new|kill)_strerror` to cppcheck's allocators. 6a90ddfe4e cleanup: Run clang-tidy on headers, as well. bd930cc80a cleanup: Make TCP connection failures a warning instead of error. fad6e4e173 cleanup: Make all .c files include the headers they need. ef4897a898 cleanup: Upgrade to clang-tidy-17 and fix some warnings. REVERT: f1df709b87 feat: add ngc events REVERT: 1b6c907235 refactor: Make event dispatch ordered by receive time. git-subtree-dir: external/toxcore/c-toxcore git-subtree-split: 8f0d505f9a598cc41c682178e1589bcc01efe9cb
47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-3.0-or-later
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* Copyright © 2019-2021 The TokTok team.
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*/
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#include "timed_auth.h"
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#include <string.h>
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#include "ccompat.h"
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#include "crypto_core.h"
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#include "mono_time.h"
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non_null(1,6) nullable(4)
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static void create_timed_auth_to_hash(const Mono_Time *mono_time, uint16_t timeout, bool previous, const uint8_t *data,
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uint16_t length, uint8_t *to_hash)
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{
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const uint64_t t = (mono_time_get(mono_time) / timeout) - (previous ? 1 : 0);
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memcpy(to_hash, &t, sizeof(t));
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if (data != nullptr) {
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memcpy(to_hash + sizeof(t), data, length);
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}
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}
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void generate_timed_auth(const Mono_Time *mono_time, uint16_t timeout, const uint8_t *key,
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const uint8_t *data, uint16_t length, uint8_t *timed_auth)
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{
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VLA(uint8_t, to_hash, sizeof(uint64_t) + length);
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create_timed_auth_to_hash(mono_time, timeout, false, data, length, to_hash);
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crypto_hmac(timed_auth, key, to_hash, SIZEOF_VLA(to_hash));
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}
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bool check_timed_auth(const Mono_Time *mono_time, uint16_t timeout, const uint8_t *key, const uint8_t *data,
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uint16_t length, const uint8_t *timed_auth)
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{
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VLA(uint8_t, to_hash, sizeof(uint64_t) + length);
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for (uint8_t i = 0; i < 2; ++i) {
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create_timed_auth_to_hash(mono_time, timeout, i != 0, data, length, to_hash);
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if (crypto_hmac_verify(timed_auth, key, to_hash, SIZEOF_VLA(to_hash))) {
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return true;
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}
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}
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return false;
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}
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