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- /* This file is part of Graphene Library OS.
- Graphene Library OS is free software: you can redistribute it and/or
- modify it under the terms of the GNU General Public License
- as published by the Free Software Foundation, either version 3 of the
- License, or (at your option) any later version.
- Graphene Library OS 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 General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
- #include <stdint.h>
- #include "pal.h"
- #include "pal_crypto.h"
- #include "pal_error.h"
- #include "crypto/wolfssl/sha256.h"
- #include "crypto/wolfssl/cmac.h"
- int lib_SHA256Init(LIB_SHA256_CONTEXT *context)
- {
- return SHA256Init(context);
- }
- int lib_SHA256Update(LIB_SHA256_CONTEXT *context, const uint8_t *data,
- uint64_t len)
- {
- /* uint64_t is a 64-bit value, but SHA256Update takes a 32-bit len. */
- if (len > UINT32_MAX) {
- return -PAL_ERROR_INVAL;
- }
- return SHA256Update(context, data, len);
- }
- int lib_SHA256Final(LIB_SHA256_CONTEXT *context, uint8_t *output)
- {
- return SHA256Final(context, output);
- }
- int lib_AESCMAC(const uint8_t *key, uint64_t key_len, const uint8_t *input,
- uint64_t input_len, uint8_t *mac, uint64_t mac_len)
- {
- /* The old code only supports 128-bit AES CMAC, and length is a 32-bit
- * value. */
- if (key_len != 16 || input_len > INT32_MAX || mac_len < 16) {
- return -PAL_ERROR_INVAL;
- }
- AES_CMAC((unsigned char *) key, (unsigned char *) input, input_len, mac);
- return 0;
- }
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