Geremia G / Crypto

Fork of François Berder Crypto, fixed AES CBC and small rework

Dependents:   AES_example shaun_larada Smartage

Fork of Crypto by Francois Berder

cipher/BlockCipher.h@15:6093fc19aad6, 2015-01-28 (annotated)

Committer:
Geremia
Date:
Wed Jan 28 17:15:32 2015 +0000
Revision:
15:6093fc19aad6
Parent:
8:a090264e9b2d 
AES: bugfixed CBC, added PCBC, added public setIV(iv), moved keyExpansion() to public

Who changed what in which revision?

UserRevisionLine numberNew contents of line
feb11 8:a090264e9b2d 1 #ifndef BLOCK_CIPHER_H
feb11 8:a090264e9b2d 2 #define BLOCK_CIPHER_H
feb11 8:a090264e9b2d 3
feb11 8:a090264e9b2d 4 #include "Cipher.h"
feb11 8:a090264e9b2d 5
feb11 8:a090264e9b2d 6 enum BLOCK_CIPHER_MODE
feb11 8:a090264e9b2d 7 {
feb11 8:a090264e9b2d 8 ECB_MODE,
Geremia 15:6093fc19aad6 9 CBC_MODE,
Geremia 15:6093fc19aad6 10 PCBC_MODE
feb11 8:a090264e9b2d 11 };
feb11 8:a090264e9b2d 12
feb11 8:a090264e9b2d 13 class BlockCipher : public Cipher
feb11 8:a090264e9b2d 14 {
feb11 8:a090264e9b2d 15 public :
feb11 8:a090264e9b2d 16
feb11 8:a090264e9b2d 17 BlockCipher(uint32_t bs, BLOCK_CIPHER_MODE m, uint8_t *iv = 0);
feb11 8:a090264e9b2d 18 virtual ~BlockCipher();
feb11 8:a090264e9b2d 19
feb11 8:a090264e9b2d 20 virtual CIPHER_TYPE getType() const;
feb11 8:a090264e9b2d 21 uint32_t getBlockSize() const;
Geremia 15:6093fc19aad6 22 void setIV(uint8_t *iv);
feb11 8:a090264e9b2d 23
feb11 8:a090264e9b2d 24 virtual void encrypt(uint8_t *out, uint8_t *in, uint32_t length);
feb11 8:a090264e9b2d 25 virtual void decrypt(uint8_t *out, uint8_t *in, uint32_t length);
feb11 8:a090264e9b2d 26
feb11 8:a090264e9b2d 27 protected :
feb11 8:a090264e9b2d 28
feb11 8:a090264e9b2d 29 virtual void encryptBlock(uint8_t *out, uint8_t *in) = 0;
feb11 8:a090264e9b2d 30 virtual void decryptBlock(uint8_t *out, uint8_t *in) = 0;
feb11 8:a090264e9b2d 31
feb11 8:a090264e9b2d 32 private :
feb11 8:a090264e9b2d 33
feb11 8:a090264e9b2d 34 uint32_t blockSize;
feb11 8:a090264e9b2d 35 BLOCK_CIPHER_MODE mode;
feb11 8:a090264e9b2d 36 uint8_t *IV;
Geremia 15:6093fc19aad6 37 uint8_t *tmpIV;
Geremia 15:6093fc19aad6 38 uint8_t *tmpdatain;
Geremia 15:6093fc19aad6 39 uint8_t *tmpdata;
feb11 8:a090264e9b2d 40 };
feb11 8:a090264e9b2d 41
feb11 8:a090264e9b2d 42 #endif