Edward Stott / Crypto_light

This library implements some hash and cryptographic algorithms.

Dependents:   ES_CW2_Starter_JIN EMBEDDED_CW2 EMBEDDED_CW2_Final Spinnybois ... more

Fork of Crypto by Francois Berder

cipher/AES.h@15:634f9c4cbab1, 2018-03-09 (annotated)

Committer:
estott
Date:
Fri Mar 09 10:10:16 2018 +0000
Revision:
15:634f9c4cbab1
Parent:
8:a090264e9b2d 
Reduced flash footprint by removing __forceinline directive in SHA2_32.c

Who changed what in which revision?

UserRevisionLine numberNew contents of line
feb11 0:7a1237bd2d13 1 #ifndef AES_H
feb11 0:7a1237bd2d13 2 #define AES_H
feb11 0:7a1237bd2d13 3
feb11 8:a090264e9b2d 4 #include "BlockCipher.h"
feb11 0:7a1237bd2d13 5
feb11 0:7a1237bd2d13 6 enum AES_TYPE
feb11 0:7a1237bd2d13 7 {
feb11 0:7a1237bd2d13 8 AES_128 = 4,
feb11 0:7a1237bd2d13 9 AES_192 = 6,
feb11 0:7a1237bd2d13 10 AES_256 = 8
feb11 0:7a1237bd2d13 11 };
feb11 0:7a1237bd2d13 12
feb11 8:a090264e9b2d 13 class AES : public BlockCipher
feb11 0:7a1237bd2d13 14 {
feb11 0:7a1237bd2d13 15 public :
feb11 0:7a1237bd2d13 16
feb11 0:7a1237bd2d13 17 AES(const AES_TYPE type, uint8_t *key);
feb11 8:a090264e9b2d 18 AES(const AES_TYPE type, uint8_t *key, uint8_t *iv);
feb11 8:a090264e9b2d 19
feb11 0:7a1237bd2d13 20 private :
feb11 0:7a1237bd2d13 21
feb11 8:a090264e9b2d 22 virtual void encryptBlock(uint8_t *out, uint8_t *in);
feb11 8:a090264e9b2d 23 virtual void decryptBlock(uint8_t *out, uint8_t *in);
feb11 0:7a1237bd2d13 24
feb11 0:7a1237bd2d13 25 void keyExpansion(uint8_t *key);
feb11 0:7a1237bd2d13 26 uint32_t rotWord(uint32_t w);
feb11 0:7a1237bd2d13 27 uint32_t invRotWord(uint32_t w);
feb11 0:7a1237bd2d13 28 uint32_t subWord(uint32_t w);
feb11 0:7a1237bd2d13 29 void subBytes();
feb11 0:7a1237bd2d13 30 void invSubBytes();
feb11 0:7a1237bd2d13 31 void shiftRows();
feb11 0:7a1237bd2d13 32 void invShiftRows();
feb11 0:7a1237bd2d13 33 void mul(uint8_t *r);
feb11 0:7a1237bd2d13 34 void invMul(uint8_t *r);
feb11 0:7a1237bd2d13 35 void mixColumns();
feb11 0:7a1237bd2d13 36 void invMixColumns();
feb11 0:7a1237bd2d13 37 void addRoundKey(int round);
feb11 0:7a1237bd2d13 38
feb11 0:7a1237bd2d13 39 uint8_t state[16];
feb11 0:7a1237bd2d13 40 uint32_t w[60];
feb11 0:7a1237bd2d13 41 uint8_t nr,nk;
feb11 0:7a1237bd2d13 42 };
feb11 0:7a1237bd2d13 43
feb11 0:7a1237bd2d13 44 #endif