Embedded systems coursework 2.
Fork of Crypto_light by
cipher/BlockCipher.cpp
- Committer:
- feb11
- Date:
- 2013-09-14
- Revision:
- 8:a090264e9b2d
- Child:
- 14:f04410cef037
File content as of revision 8:a090264e9b2d:
#include "BlockCipher.h" #include <string.h> BlockCipher::BlockCipher(uint32_t bs, BLOCK_CIPHER_MODE m, uint8_t *iv): Cipher(), blockSize(bs), mode(m), IV(0) { if(mode == CBC_MODE) { IV = new uint8_t[blockSize]; memcpy(IV, iv, blockSize); } } BlockCipher::~BlockCipher() { if(IV != 0) delete[] IV; } CIPHER_TYPE BlockCipher::getType() const { return BLOCK_CIPHER; } uint32_t BlockCipher::getBlockSize() const { return blockSize; } void BlockCipher::encrypt(uint8_t *out, uint8_t *in, uint32_t length) { for(uint32_t i = 0; i < length; i += getBlockSize()) { encryptBlock(&out[i], &in[i]); } } void BlockCipher::decrypt(uint8_t *out, uint8_t *in, uint32_t length) { for(uint32_t i = 0; i < length; i += getBlockSize()) { decryptBlock(&out[i], &in[i]); } }