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AES.h
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AES.h
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#ifndef _AES_H_
#define _AES_H_
#include <iostream>
#include <deque>
#include <iomanip>
#include <sstream>
#include <string>
using namespace std;
typedef unsigned char Byte;
class AES
{
public:
AES();
~AES();
/**
* Encrypt input plain text with an AES key in ECB Mode.
*
* @param in; Plain text to encrypt (deque<Byte>).
* @param key; AES encryption key (deque<Byte>).
* @param out; The result of AES encryption (deque<Byte>).
* @return Encryption result as boolean (true: SUCCESS; false: FAILED).
*/
bool EncryptECB(const deque<Byte> in, const deque<Byte> key, deque<Byte>& out);
/**
* Decrypt input cipher text with an AES key in ECB Mode.
*
* @param in; Cipher text to decrypt (deque<Byte>).
* @param key; AES encryption key (deque<Byte>).
* @param out; The result of AES decryption (deque<Byte>).
* @return Decryption result as boolean (true: SUCCESS; false: FAILED).
*/
bool DecryptECB(const deque<Byte> in, const deque<Byte> key, deque<Byte>& out);
/**
* Encrypt input plain text with an AES key in CBC Mode.
*
* @param in; Plain text to encrypt (deque<Byte>).
* @param key; AES encryption key (deque<Byte>).
* @param out; The result of AES encryption (deque<Byte>).
* @return Encryption result as boolean (true: SUCCESS; false: FAILED).
*/
bool EncryptCBC(const deque<Byte> in, const deque<Byte> key, const deque<Byte> iv, deque<Byte>& out);
/**
* Decrypt input cipher text with an AES key in CBC Mode.
*
* @param in; Cipher text to decrypt (deque<Byte>).
* @param key; AES encryption key (deque<Byte>).
* @param out; The result of AES decryption (deque<Byte>).
* @return Decryption result as boolean (true: SUCCESS; false: FAILED).
*/
bool DecryptCBC(const deque<Byte> in, const deque<Byte> key, const deque<Byte> iv, deque<Byte>& out);
/**
* Encrypt input plain text with an AES key in PCBC Mode.
*
* @param in; Plain text to encrypt (deque<Byte>).
* @param key; AES encryption key (deque<Byte>).
* @param out; The result of AES encryption (deque<Byte>).
* @return Encryption result as boolean (true: SUCCESS; false: FAILED).
*/
bool EncryptPCBC(const deque<Byte> in, const deque<Byte> key, const deque<Byte> iv, deque<Byte>& out);
/**
* Decrypt input cipher text with an AES key in PCBC Mode.
*
* @param in; Cipher text to decrypt (deque<Byte>).
* @param key; AES encryption key (deque<Byte>).
* @param out; The result of AES decryption (deque<Byte>).
* @return Decryption result as boolean (true: SUCCESS; false: FAILED).
*/
bool DecryptPCBC(const deque<Byte> in, const deque<Byte> key, const deque<Byte> iv, deque<Byte>& out);
/**
* Encrypt input plain text with an AES key in CFB Mode.
*
* @param in; Plain text to encrypt (deque<Byte>).
* @param key; AES encryption key (deque<Byte>).
* @param out; The result of AES encryption (deque<Byte>).
* @return Encryption result as boolean (true: SUCCESS; false: FAILED).
*/
bool EncryptCFB(const deque<Byte> in, const deque<Byte> key, const deque<Byte> iv, deque<Byte>& out);
/**
* Decrypt input cipher text with an AES key in CFB Mode.
*
* @param in; Cipher text to decrypt (deque<Byte>).
* @param key; AES encryption key (deque<Byte>).
* @param out; The result of AES decryption (deque<Byte>).
* @return Decryption result as boolean (true: SUCCESS; false: FAILED).
*/
bool DecryptCFB(const deque<Byte> in, const deque<Byte> key, const deque<Byte> iv, deque<Byte>& out);
/**
* Encrypt input plain text with an AES key in OFB Mode.
*
* @param in; Plain text to encrypt (deque<Byte>).
* @param key; AES encryption key (deque<Byte>).
* @param out; The result of AES encryption (deque<Byte>).
* @return Encryption result as boolean (true: SUCCESS; false: FAILED).
*/
bool EncryptOFB(const deque<Byte> in, const deque<Byte> key, const deque<Byte> iv, deque<Byte>& out);
/**
* Decrypt input cipher text with an AES key in OFB Mode.
*
* @param in; Cipher text to decrypt (deque<Byte>).
* @param key; AES encryption key (deque<Byte>).
* @param out; The result of AES decryption (deque<Byte>).
* @return Decryption result as boolean (true: SUCCESS; false: FAILED).
*/
bool DecryptOFB(const deque<Byte> in, const deque<Byte> key, const deque<Byte> iv, deque<Byte>& out);
/**
* Print Hex input on Cammand Prompt.
*
* @param in; a deque of data (deque<Byte>).
*/
void printHexArray(const deque<Byte>& in) const;
/**
* Convert input text to deque<Byte>.
*
* @param text; text to convert (string).
* @param deq; The result of Converted (deque<Byte>).
* @return Convert result as boolean (true: SUCCESS; false: FAILED).
*/
bool convertSTRtoVEC(const string& text, deque<Byte>& deq) const;
/**
* Convert input text to deque<Byte>.
*
* @param deq; deque of Convert (deque<Byte>).
* @param text; The resulttext to converted (string).
* @return Convert result as boolean (true: SUCCESS; false: FAILED).
*/
bool convertVECtoSTR(const deque<Byte>& deq, string& text) const;
private:
void EncryptBlock();
void DecryptBlock();
void KeyExpansion(const deque<Byte>& key);
void AddRoundKey(deque<deque<Byte>>& block, const size_t shift = 0) const;
void SubBytes(deque<deque<Byte>>& block) const;
void ShiftRows(deque<deque<Byte>>& block) const;
void MixColumns(deque<deque<Byte>>& block) const;
void InvSubBytes(deque<deque<Byte>>& block) const;
void InvShiftRows(deque<deque<Byte>>& block) const;
void InvMixColumns(deque<deque<Byte>>& block) const;
void RotWord(deque<Byte>& a) const;
void SubWord(deque<Byte>& a) const;
void Rcon(deque<Byte>& a, size_t n) const;
void XorWords(const deque<Byte> a, const deque<Byte> b, deque<Byte>& c) const;
Byte mulBytes(Byte a, Byte b) const;
void ShiftRow(deque<Byte>& row, int n) const;
void MixSingleColumn(deque<Byte>& r) const;
private:
size_t Nb;
size_t Nk;
size_t Nr;
Byte blockLen;
deque<Byte> inBlock;
deque<Byte> roundKeys;
};
const deque<Byte> sBox{
0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 };
const deque<Byte> invSBox{
0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d };
#endif