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Diffstat (limited to 'src/crypto/impl/mbedtls.c')
-rw-r--r--src/crypto/impl/mbedtls.c172
1 files changed, 0 insertions, 172 deletions
diff --git a/src/crypto/impl/mbedtls.c b/src/crypto/impl/mbedtls.c
deleted file mode 100644
index 057e7b4..0000000
--- a/src/crypto/impl/mbedtls.c
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
-* 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 <mbedtls/md.h>
-#include <mbedtls/hkdf.h>
-#include <mbedtls/hmac_drbg.h>
-#include <mbedtls/sha256.h>
-#include <mbedtls/chacha20.h>
-#include <mbedtls/constant_time.h>
-
-#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