ARM Shanghai IoT Team (Internal) / newMiniTLS-GPL

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Fork of MiniTLS-GPL by Donatien Garnier

crypto/crypto_aes_128.h@4:cbaf466d717d, 2014-06-10 (annotated)

Committer:
MiniTLS
Date:
Tue Jun 10 14:23:09 2014 +0000
Revision:
4:cbaf466d717d
Parent:
2:527a66d0a1a9 
Fixes for mbed

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MiniTLS 2:527a66d0a1a9 1 /*
MiniTLS 2:527a66d0a1a9 2 MiniTLS - A super trimmed down TLS/SSL Library for embedded devices
MiniTLS 2:527a66d0a1a9 3 Author: Donatien Garnier
MiniTLS 2:527a66d0a1a9 4 Copyright (C) 2013-2014 AppNearMe Ltd
MiniTLS 2:527a66d0a1a9 5
MiniTLS 2:527a66d0a1a9 6 This program is free software; you can redistribute it and/or
MiniTLS 2:527a66d0a1a9 7 modify it under the terms of the GNU General Public License
MiniTLS 2:527a66d0a1a9 8 as published by the Free Software Foundation; either version 2
MiniTLS 2:527a66d0a1a9 9 of the License, or (at your option) any later version.
MiniTLS 2:527a66d0a1a9 10
MiniTLS 2:527a66d0a1a9 11 This program is distributed in the hope that it will be useful,
MiniTLS 2:527a66d0a1a9 12 but WITHOUT ANY WARRANTY; without even the implied warranty of
MiniTLS 2:527a66d0a1a9 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
MiniTLS 2:527a66d0a1a9 14 GNU General Public License for more details.
MiniTLS 2:527a66d0a1a9 15
MiniTLS 2:527a66d0a1a9 16 You should have received a copy of the GNU General Public License
MiniTLS 2:527a66d0a1a9 17 along with this program; if not, write to the Free Software
MiniTLS 2:527a66d0a1a9 18 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
MiniTLS 2:527a66d0a1a9 19 *//**
MiniTLS 2:527a66d0a1a9 20 * \file crypto_aes_128.h
MiniTLS 2:527a66d0a1a9 21 * \copyright Copyright (c) AppNearMe Ltd 2013
MiniTLS 2:527a66d0a1a9 22 * \author Donatien Garnier
MiniTLS 2:527a66d0a1a9 23 */
MiniTLS 2:527a66d0a1a9 24
MiniTLS 2:527a66d0a1a9 25 #ifndef CRYPTO_AES_128_H_
MiniTLS 2:527a66d0a1a9 26 #define CRYPTO_AES_128_H_
MiniTLS 2:527a66d0a1a9 27
MiniTLS 2:527a66d0a1a9 28 #ifdef __cplusplus
MiniTLS 2:527a66d0a1a9 29 extern "C" {
MiniTLS 2:527a66d0a1a9 30 #endif
MiniTLS 2:527a66d0a1a9 31
MiniTLS 2:527a66d0a1a9 32 #include "inc/minitls_errors.h"
MiniTLS 2:527a66d0a1a9 33
MiniTLS 2:527a66d0a1a9 34 #define AES_128_KEY_SIZE 16 //128 bits
MiniTLS 2:527a66d0a1a9 35 #define AES_128_BLOCK_SIZE AES_128_KEY_SIZE
MiniTLS 2:527a66d0a1a9 36
MiniTLS 2:527a66d0a1a9 37 //This cipher is based on the Rijndael cipher and the rijndael.c reference implementation
MiniTLS 2:527a66d0a1a9 38
MiniTLS 2:527a66d0a1a9 39 #define AES_128_EXPANDED_KEY_SIZE (28 + AES_128_KEY_SIZE)
MiniTLS 2:527a66d0a1a9 40
MiniTLS 2:527a66d0a1a9 41 typedef enum __crypto_aes_128_key_expansion_type
MiniTLS 2:527a66d0a1a9 42 {
MiniTLS 2:527a66d0a1a9 43 expand_encryption_key,
MiniTLS 2:527a66d0a1a9 44 expand_decryption_key,
MiniTLS 2:527a66d0a1a9 45 } crypto_aes_128_key_expansion_type_t;
MiniTLS 2:527a66d0a1a9 46
MiniTLS 2:527a66d0a1a9 47 //One-way implementation only
MiniTLS 2:527a66d0a1a9 48 typedef struct __crypto_aes_128
MiniTLS 2:527a66d0a1a9 49 {
MiniTLS 2:527a66d0a1a9 50 uint32_t expanded_key[AES_128_EXPANDED_KEY_SIZE];
MiniTLS 2:527a66d0a1a9 51 } crypto_aes_128_t;
MiniTLS 2:527a66d0a1a9 52
MiniTLS 2:527a66d0a1a9 53 //Asymmetric impl: To diminish key sizes, only the AES encipher OR decipher operation can be executed - on the other side, only the reverse operation is executed
MiniTLS 2:527a66d0a1a9 54 void crypto_aes_128_init(crypto_aes_128_t* aes_128, const uint8_t* key, crypto_aes_128_key_expansion_type_t expansion_type);
MiniTLS 2:527a66d0a1a9 55
MiniTLS 2:527a66d0a1a9 56 void crypto_aes_128_encrypt(crypto_aes_128_t* aes_128, const uint8_t* plaintext, uint8_t* ciphertext);
MiniTLS 2:527a66d0a1a9 57 void crypto_aes_128_decrypt(crypto_aes_128_t* aes_128, const uint8_t* ciphertext, uint8_t* plaintext);
MiniTLS 2:527a66d0a1a9 58
MiniTLS 2:527a66d0a1a9 59 #ifdef __cplusplus
MiniTLS 2:527a66d0a1a9 60 }
MiniTLS 2:527a66d0a1a9 61 #endif
MiniTLS 2:527a66d0a1a9 62
MiniTLS 2:527a66d0a1a9 63 #endif /* CRYPTO_AES_128_H_ */