From e7375560d465f6da71aae0483c0e7a72535ccc10 Mon Sep 17 00:00:00 2001 From: vnugent Date: Sat, 4 May 2024 14:06:06 -0400 Subject: Squashed commit of the following: commit 0a40e209d03e8ff9b6f81cd5969d3e845c633bfc Author: vnugent Date: Sat May 4 13:55:19 2024 -0400 ci: Force disable testing for win ci builds commit 55fae189fffc86f07a3448370f0a746670819712 Author: vnugent Date: Thu May 2 21:54:35 2024 -0400 feat: Working and tested openssl impl & defaults commit 6ff8bb11774c51fd341b7699a3938fd894995fbf Author: vnugent Date: Thu Apr 25 17:45:42 2024 -0400 refactor: Finish support and testing for mbedtls commit 7cb7a93de4f6f5e741bc5129e3d928e44f050930 Author: vnugent Date: Tue Apr 23 18:19:31 2024 -0400 refactor!: MbedTLS on Windows, switch to uint32 commit 30e8dda6cbea86bdee6d5dfe48514385d3b9f81b Author: vnugent Date: Tue Apr 23 14:48:05 2024 -0400 refactor: Crypto dep redesign working on Windows commit d09c6c1bd5da3e2d79351daeba304ca99976a726 Author: vnugent Date: Thu Apr 18 00:28:51 2024 -0400 refactor!: Pushing what I have to dev commit 54e06ada7d624ed0d28c6a6db04a149708841bf8 Author: vnugent Date: Sat Apr 13 01:24:00 2024 -0400 fix: convert constants to hex, inline macro, ParseErrorCode commit 4215e3100d9a0d23119080d09638fa5b60d0c6d4 Merge: d3328f4 7485aa5 Author: vnugent Date: Wed Apr 3 18:26:30 2024 -0400 Merge branch 'master' into develop commit d3328f4152b22b28f24c43dda62464287f1efff5 Author: vnugent Date: Wed Apr 3 18:22:56 2024 -0400 build: Included dependency and versions in client builds commit b11bc0bac955fd5c6db65f0da48456bf5e748805 Author: vnugent Date: Wed Apr 3 18:10:08 2024 -0400 fix: Fix c89 compatabilty comments and struct assignment commit 9915bd41799a72413e6b400e150aa9f5fa797e25 Merge: 8e3d6ea 5184d7d Author: vnugent Date: Sat Mar 30 09:57:30 2024 -0400 Merge branch 'master' into develop commit 8e3d6ea5e3c83fe42cb904b6ccc4fe2b73f76aae Author: vnugent Date: Sat Mar 30 09:52:55 2024 -0400 refactor!: Some api (struct) changes and updated tests commit e88e8420520204e20802516f01d4488bb0b1d6ea Merge: 490dfee 21f6c0a Author: vnugent Date: Sun Mar 3 15:02:34 2024 -0500 Merge branch 'master' into develop commit 490dfee4ef22479009627435c6ad728c3cbbab54 Author: vnugent Date: Sun Mar 3 14:59:25 2024 -0500 test: #3 tests for encryption/description and Macs commit efa97490b7ed47f4e2f05bee52e2b33e14e439e6 Merge: 1b84e3c 120022a Author: vnugent Date: Sun Mar 3 14:55:48 2024 -0500 merge master commit 1b84e3c7c2e55b1ff9ffdd09b66873e11c131441 Author: vnugent Date: Sat Mar 2 22:57:36 2024 -0500 fix: #2 constent usage of sizeof() operator on struct types commit 9de5a214c66adea0ef2d0bac63c59449de202a88 Author: vnugent Date: Fri Mar 1 14:30:36 2024 -0500 perf: avoid nc_key struct copy, cast and verify instead commit b917b761120ed684af28d0707673ffadcf14b8fe Author: vnugent Date: Mon Feb 12 22:06:50 2024 -0500 fix: found the constant time memcompare function commit 9f85fff3b9f25da7410569ea94f994b88feb3910 Author: vnugent Date: Fri Feb 9 22:48:35 2024 -0500 feat: added/update MAC functions to sign or verify nip44 payload commit aa5113741bb419b02d6ea416bba571fa3d65db46 Author: vnugent Date: Wed Feb 7 01:37:53 2024 -0500 add missing hmac-key output buffer commit 55f47d22cc9ce4d1e22b70814d608c7ef3b1bbc9 Author: vnugent Date: Sun Feb 4 21:08:13 2024 -0500 simple bug fixes, and public api argument validation tests commit 73c5a713fb164ae8b4ac8a891a8020e08eae0a3b Author: vnugent Date: Fri Feb 2 23:05:48 2024 -0500 update api to return secpvalidate return code instead of internal return codes commit 06c73004e1a39a7ea4ea3a89c22dee0f66adb236 Author: vnugent Date: Fri Feb 2 19:25:17 2024 -0500 change to lgpl license commit 6e79fdb3b6b6739fc7797d47e55a7691306cf736 Author: vnugent Date: Wed Jan 31 21:30:49 2024 -0500 move validation macros, and optionally disable them commit ac1e58837f1ba687939f78b5c03cadd346c10ddd Author: vnugent Date: Tue Jan 30 12:25:05 2024 -0500 couple more tests, renable range checks, set flags for all projects --- src/crypto/impl/mbedtls.c | 172 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 172 insertions(+) create mode 100644 src/crypto/impl/mbedtls.c (limited to 'src/crypto/impl/mbedtls.c') diff --git a/src/crypto/impl/mbedtls.c b/src/crypto/impl/mbedtls.c new file mode 100644 index 0000000..057e7b4 --- /dev/null +++ b/src/crypto/impl/mbedtls.c @@ -0,0 +1,172 @@ +/* +* Copyright (c) 2024 Vaughn Nugent +* +* Package: noscrypt +* File: mbedtls.c +* +* This library is free software; you can redistribute it and/or +* modify it under the terms of the GNU Lesser General Public License +* as published by the Free Software Foundation; either version 2.1 +* of the License, or (at your option) any later version. +* +* This library is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +* Lesser General Public License for more details. +* +* You should have received a copy of the GNU Lesser General Public License +* along with noscrypt. If not, see http://www.gnu.org/licenses/. +*/ + + +/* +* This file contains implemntation functions for the required +* cryptography primitives of noscrypt. This file stubs functionality +* using the Mbed-TLS library, if the builder desires to link against +* it. +*/ + +#ifdef MBEDTLS_CRYPTO_LIB + +/* Inline errors on linux in header files on linux */ +#ifndef inline + #define inline __inline +#endif + +#include +#include +#include +#include +#include +#include + +#ifndef inline + #undef inline +#endif + + +_IMPLSTB const mbedtls_md_info_t* _mbed_sha256_alg(void) +{ + const mbedtls_md_info_t* info; + /* Get sha256 md info for hdkf operations */ + info = mbedtls_md_info_from_type(MBEDTLS_MD_SHA256); + DEBUG_ASSERT2(info != NULL, "Expected SHA256 md info pointer to be valid") + return info; +} + +#if SIZE_MAX < UINT64_MAX + #define _ssize_guard_int(x) if(x > SIZE_MAX) return 1; +#else + #define _ssize_guard_int(x) +#endif + +#ifndef _IMPL_CHACHA20_CRYPT + + /* Export chacha20 computation */ + #define _IMPL_CHACHA20_CRYPT _mbed_chacha20_encrypt + + _IMPLSTB cstatus_t _mbed_chacha20_encrypt( + const uint8_t* key, + const uint8_t* nonce, + const uint8_t* input, + uint8_t* output, + uint32_t dataLen + ) + { + _overflow_check(dataLen) + + /* Counter always starts at 0 */ + return mbedtls_chacha20_crypt( + key, + nonce, + 0x00u, /* nip-44 counter version */ + dataLen, + input, + output + ) == 0 ? CSTATUS_OK : CSTATUS_FAIL; + } + +#endif + +/* Export sha256 if not already defined */ +#ifndef _IMPL_CRYPTO_SHA256_DIGEST + + #define _IMPL_CRYPTO_SHA256_DIGEST _mbed_sha256_digest + + _IMPLSTB cstatus_t _mbed_sha256_digest(const cspan_t* data, sha256_t digestOut32) + { + _overflow_check(data->size) + + return mbedtls_sha256( + data->data, + data->size, + digestOut32, + 0 /* Set 0 for sha256 mode */ + ) == 0 ? CSTATUS_OK : CSTATUS_FAIL; + } + +#endif + +/* Export Sha256 hmac if not already defined by other libs */ +#ifndef _IMPL_CRYPTO_SHA256_HMAC + + #define _IMPL_CRYPTO_SHA256_HMAC _mbed_sha256_hmac + + _IMPLSTB cstatus_t _mbed_sha256_hmac(const cspan_t* key, const cspan_t* data, sha256_t hmacOut32) + { + _overflow_check(data->size) + + /* Keys should never be large enough for this to matter, but sanity check. */ + DEBUG_ASSERT2(key->size < SIZE_MAX, "Expected key size to be less than SIZE_MAX") + + return mbedtls_md_hmac( + _mbed_sha256_alg(), + key->data, + key->size, + data->data, + data->size, + hmacOut32 + ) == 0 ? CSTATUS_OK : CSTATUS_FAIL; + } +#endif + +/* Export hkdf expand if not already defined */ +#ifndef _IMPL_CRYPTO_SHA256_HKDF_EXPAND + + #define _IMPL_CRYPTO_SHA256_HKDF_EXPAND _mbed_sha256_hkdf_expand + + _IMPLSTB cstatus_t _mbed_sha256_hkdf_expand(const cspan_t* prk, const cspan_t* info, span_t* okm) + { + /* These sizes should never be large enough to overflow on <64bit platforms, but sanity check */ + DEBUG_ASSERT(okm->size < SIZE_MAX) + DEBUG_ASSERT(prk->size < SIZE_MAX) + DEBUG_ASSERT(info->size < SIZE_MAX) + + return mbedtls_hkdf_expand( + _mbed_sha256_alg(), + prk->data, + prk->size, + info->data, + info->size, + okm->data, + okm->size + ) == 0 ? CSTATUS_OK : CSTATUS_FAIL; + } + +#endif + +/* Export fixed-time compare if not already defined */ +#ifndef _IMPL_CRYPTO_FIXED_TIME_COMPARE + + #define _IMPL_CRYPTO_FIXED_TIME_COMPARE _mbed_fixed_time_compare + + /* fixed-time memcmp */ + _IMPLSTB uint32_t _mbed_fixed_time_compare(const uint8_t* a, const uint8_t* b, uint32_t size) + { + _ssize_guard_int(size) + + return (uint32_t)mbedtls_ct_memcmp(a, b, size); + } +#endif + +#endif \ No newline at end of file -- cgit