#ifndef __RIJNDAEL_ALG_H
#define __RIJNDAEL_ALG_H
#define MAXBC (256/32)
#define MAXKC (256/32)
#define MAXROUNDS 14
typedef unsigned char word8;
typedef unsigned short word16;
typedef unsigned long word32;
int rijndaelKeySched (word8 k[4][MAXKC], int keyBits, int blockBits,
word8 rk[MAXROUNDS+1][4][MAXBC]);
int rijndaelEncrypt (word8 a[4][MAXBC], int keyBits, int blockBits,
word8 rk[MAXROUNDS+1][4][MAXBC]);
int rijndaelEncryptRound (word8 a[4][MAXBC], int keyBits, int blockBits,
word8 rk[MAXROUNDS+1][4][MAXBC], int rounds);
int rijndaelDecrypt (word8 a[4][MAXBC], int keyBits, int blockBits,
word8 rk[MAXROUNDS+1][4][MAXBC]);
int rijndaelDecryptRound (word8 a[4][MAXBC], int keyBits, int blockBits,
word8 rk[MAXROUNDS+1][4][MAXBC], int rounds);
#endif /* __RIJNDAEL_ALG_H */
/* rijndael-alg-ref.c v2.0 August '99
* Reference ANSI C code
* authors: Paulo Barreto
* Vincent Rijmen, K.U.Leuven
*
* This code is placed in the public domain.
*/
#include "stdafx.h"
#include "stdio.h"
#include "stdlib.h"
#define MAXBC (256/32)
#define MAXKC (256/32)
#define MAXROUNDS 14
typedef unsigned char word8;
typedef unsigned short word16;
typedef unsigned long word32;
#define SC ((BC - 4) >> 1)
word8 Logtable[256] = {
0, 0, 25, 1, 50, 2, 26, 198, 75, 199, 27, 104, 51, 238, 223, 3,
100, 4, 224, 14, 52, 141, 129, 239, 76, 113, 8, 200, 248, 105, 28, 193,
125, 194, 29, 181, 249, 185, 39, 106, 77, 228, 166, 114, 154, 201, 9, 120,
101, 47, 138, 5, 33, 15, 225, 36, 18, 240, 130, 69, 53, 147, 218, 142,
150, 143, 219, 189, 54, 208, 206, 148, 19, 92, 210, 241, 64, 70, 131, 56,
102, 221, 253, 48, 191, 6, 139, 98, 179, 37, 226, 152, 34, 136, 145, 16,
126, 110, 72, 195, 163, 182, 30, 66, 58, 107, 40, 84, 250, 133, 61, 186,
43, 121, 10, 21, 155, 159, 94, 202, 78, 212, 172, 229, 243, 115, 167, 87,
175, 88, 168, 80, 244, 234, 214, 116, 79, 174, 233, 213, 231, 230, 173, 232,
44, 215, 117, 122, 235, 22, 11, 245, 89, 203, 95, 176, 156, 169, 81, 160,
127, 12, 246, 111, 23, 196, 73, 236, 216, 67, 31, 45, 164, 118, 123, 183,
204, 187, 62, 90, 251, 96, 177, 134, 59, 82, 161, 108, 170, 85, 41, 157,
151, 178, 135, 144, 97, 190, 220, 252, 188, 149, 207, 205, 55, 63, 91, 209,
83, 57, 132, 60, 65, 162, 109, 71, 20, 42, 158, 93, 86, 242, 211, 171,
68, 17, 146, 217, 35, 32, 46, 137, 180, 124, 184, 38, 119, 153, 227, 165,
103, 74, 237, 222, 197, 49, 254, 24, 13, 99, 140, 128, 192, 247, 112, 7,
};
word8 Alogtable[256] = {
1, 3, 5, 15, 17, 51, 85, 255, 26, 46, 114, 150, 161, 248, 19, 53,
95, 225, 56, 72, 216, 115, 149, 164, 247, 2, 6, 10, 30, 34, 102, 170,
229, 52, 92, 228, 55, 89, 235, 38, 106, 190, 217, 112, 144, 171, 230, 49,
83, 245, 4, 12, 20, 60, 68, 204, 79, 209, 104, 184, 211, 110, 178, 205,
76, 212, 103, 169, 224, 59, 77, 215, 98, 166, 241, 8, 24, 40, 120, 136,
131, 158, 185, 208, 107, 189, 220, 127, 129, 152, 179, 206, 73, 219, 118, 154,
181, 196, 87, 249, 16, 48, 80, 240, 11, 29, 39, 105, 187, 214, 97, 163,
254, 25, 43, 125, 135, 146, 173, 236, 47, 113, 147, 174, 233, 32, 96, 160,
251, 22, 58, 78, 210, 109, 183, 194, 93, 231, 50, 86, 250, 21, 63, 65,
195, 94, 226, 61, 71, 201, 64, 192, 91, 237, 44, 116, 156, 191, 218, 117,
159, 186, 213, 100, 172, 239, 42, 126, 130, 157, 188, 223, 122, 142, 137, 128,
155, 182, 193, 88, 232, 35, 101, 175, 234, 37, 111, 177, 200, 67, 197, 84,
252, 31, 33, 99, 165, 244, 7, 9, 27, 45, 119, 153, 176, 203, 70, 202,
69, 207, 74, 222, 121, 139, 134, 145, 168, 227, 62, 66, 198, 81, 243, 14,
18, 54, 90, 238, 41, 123, 141, 140, 143, 138, 133, 148, 167, 242, 13, 23,
57, 75, 221, 124, 132, 151, 162, 253, 28, 36, 108, 180, 199, 82, 246, 1,
};
word8 S[256] = {
99, 124, 119, 123, 242, 107, 111, 197, 48, 1, 103, 43, 254, 215, 171, 118,
202, 130, 201, 125, 250, 89, 71, 240, 173, 212, 162, 175, 156, 164, 114, 192,
183, 253, 147, 38, 54, 63, 247, 204, 52, 165, 229, 241, 113, 216, 49, 21,
4, 199, 35, 195, 24, 150, 5, 154, 7, 18, 128, 226, 235, 39, 178, 117,
9, 131, 44, 26, 27, 110, 90, 160, 82, 59, 214, 179, 41, 227, 47, 132,
83, 209, 0, 237, 32, 252, 177, 91, 106, 203, 190, 57, 74, 76, 88, 207,
208, 239, 170, 251, 67, 77, 51, 133, 69, 249, 2, 127, 80, 60, 159, 168,
81, 163, 64, 143, 146, 157, 56, 245, 188, 182, 218, 33, 16, 255, 243, 210,
205, 12, 19, 236, 95, 151, 68, 23, 196, 167, 126, 61, 100, 93, 25, 115,
96, 129, 79, 220, 34, 42, 144, 136, 70, 238, 184, 20, 222, 94, 11, 219,
224, 50, 58, 10, 73, 6, 36, 92, 194, 211, 172, 98, 145, 149, 228, 121,
231, 200, 55, 109, 141, 213, 78, 169, 108, 86, 244, 234, 101, 122, 174, 8,
186, 120, 37, 46, 28, 166, 180, 198, 232, 221, 116, 31, 75, 189, 139, 138,
112, 62, 181, 102, 72, 3, 246, 14, 97, 53, 87, 185, 134, 193, 29, 158,
225, 248, 152, 17, 105, 217, 142, 148, 155, 30, 135, 233, 206, 85, 40, 223,
140, 161, 137, 13, 191, 230, 66, 104, 65, 153, 45, 15, 176, 84, 187, 22,
};
word8 Si[256] = {
82, 9, 106, 213, 48, 54, 165, 56, 191, 64, 163, 158, 129, 243, 215, 251,
124, 227, 57, 130, 155, 47, 255, 135, 52, 142, 67, 68, 196, 222, 233, 203,
84, 123, 148, 50, 166, 194, 35, 61, 238, 76, 149, 11, 66, 250, 195, 78,
8, 46, 161, 102, 40, 217, 36, 178, 118, 91, 162, 73, 109, 139, 209, 37,
114, 248, 246, 100, 134, 104, 152, 22, 212, 164, 92, 204, 93, 101, 182, 146,
108, 112, 72, 80, 253, 237, 185, 218, 94, 21, 70, 87, 167, 141, 157, 132,
144, 216, 171, 0, 140, 188, 211, 10, 247, 228, 88, 5, 184, 179, 69, 6,
208, 44, 30, 143, 202, 63, 15, 2, 193, 175, 189, 3, 1, 19, 138, 107,
58, 145, 17, 65, 79, 103, 220, 234, 151, 242, 207, 206, 240, 180, 230, 115,
150, 172, 116, 34, 231, 173, 53, 133, 226, 249, 55, 232, 28, 117, 223, 110,
71, 241, 26, 113, 29, 41, 197, 137, 111, 183, 98, 14, 170, 24, 190, 27,
252, 86, 62, 75, 198, 210, 121, 32, 154, 219, 192, 254, 120, 205, 90, 244,
31, 221, 168, 51, 136, 7, 199, 49, 177, 18, 16, 89, 39, 128, 236, 95,
96, 81, 127, 169, 25, 181, 74, 13, 45, 229, 122, 159, 147, 201, 156, 239,
160, 224, 59, 77, 174, 42, 245, 176, 200, 235, 187, 60, 131, 83, 153, 97,
23, 43, 4, 126, 186, 119, 214, 38, 225, 105, 20, 99, 85, 33, 12, 125,
};
word8 iG[4][4] = {
0x0e, 0x09, 0x0d, 0x0b,
0x0b, 0x0e, 0x09, 0x0d,
0x0d, 0x0b, 0x0e, 0x09,
0x09, 0x0d, 0x0b, 0x0e,
};
word32 rcon[30] = {
0x01,0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, };
static word8 shifts[3][4][2] = {
0, 0,
1, 3,
2, 2,
3, 1,
0, 0,
1, 5,
2, 4,
3, 3,
0, 0,
1, 7,
3, 5,
4, 4
};
word8 mul(word8 a, word8 b) {
/* multiply two elements of GF(2^m)
* needed for MixColumn and InvMixColumn
*/
if (a && b) return Alogtable[(Logtable[a] + Logtable[b])%255];
else return 0;
}
void KeyAddition(word8 a[4][MAXBC], word8 rk[4][MAXBC], word8 BC) {
/* Exor corresponding text input and round key input bytes
*/
int i, j;
for(i = 0; i < 4; i++)
for(j = 0; j < BC; j++) a[i][j] ^= rk[i][j];
}
void ShiftRow(word8 a[4][MAXBC], word8 d, word8 BC) {
/* Row 0 remains unchanged
* The other three rows are shifted a variable amount
*/
word8 tmp[MAXBC];
int i, j;
for(i = 1; i < 4; i++) {
for(j = 0; j < BC; j++) tmp[j] = a[i][(j + shifts[SC][i][d]) % BC];
for(j = 0; j < BC; j++) a[i][j] = tmp[j];
}
}
void Substitution(word8 a[4][MAXBC], word8 box[256], word8 BC) {
/* Replace every byte of the input by the byte at that place
* in the nonlinear S-box
*/
int i, j;
for(i = 0; i < 4; i++)
for(j = 0; j < BC; j++) a[i][j] = box[a[i][j]] ;
}
void MixColumn(word8 a[4][MAXBC], word8 BC) {
/* Mix the four bytes of every column in a linear way
*/
word8 b[4][MAXBC];
int i, j;
for(j = 0; j < BC; j++)
for(i = 0; i < 4; i++)
b[i][j] = mul(2,a[i][j])
^ mul(3,a[(i + 1) % 4][j])
^ a[(i + 2) % 4][j]
^ a[(i + 3) % 4][j];
for(i = 0; i < 4; i++)
for(j = 0; j < BC; j++) a[i][j] = b[i][j];
}
void InvMixColumn(word8 a[4][MAXBC], word8 BC) {
/* Mix the four bytes of every column in a linear way
* This is the opposite operation of Mixcolumn
*/
word8 b[4][MAXBC];
int i, j;
for(j = 0; j < BC; j++)
for(i = 0; i < 4; i++)
b[i][j] = mul(0xe,a[i][j])
^ mul(0xb,a[(i + 1) % 4][j])
^ mul(0xd,a[(i + 2) % 4][j])
^ mul(0x9,a[(i + 3) % 4][j]);
for(i = 0; i < 4; i++)
for(j = 0; j < BC; j++) a[i][j] = b[i][j];
}
int rijndaelKeySched (word8 k[4][MAXKC], int keyBits, int blockBits, word8 W[MAXROUNDS+1][4][MAXBC]) {
/* Calculate the necessary round keys
* The number of calculations depends on keyBits and blockBits
*/
int KC, BC, ROUNDS;
int i, j, t, rconpointer = 0;
word8 tk[4][MAXKC];
switch (keyBits) {
case 128: KC = 4; break;
case 192: KC = 6; break;
case 256: KC = 8; break;
default : return (-1);
}
switch (blockBits) {
case 128: BC = 4; break;
case 192: BC = 6; break;
case 256: BC = 8; break;
default : return (-2);
}
switch (keyBits >= blockBits ? keyBits : blockBits) {
case 128: ROUNDS = 10; break;
case 192: ROUNDS = 12; break;
case 256: ROUNDS = 14; break;
default : return (-3); /* this cannot happen */
}
for(j = 0; j < KC; j++)
for(i = 0; i < 4; i++)
tk[i][j] = k[i][j];
t = 0;
/* copy values into round key array */
for(j = 0; (j < KC) && (t < (ROUNDS+1)*BC); j++, t++)
for(i = 0; i < 4; i++) W[t / BC][i][t % BC] = tk[i][j];
while (t < (ROUNDS+1)*BC) { /* while not enough round key material calculated */
/* calculate new values */
for(i = 0; i < 4; i++)
tk[i][0] ^= S[tk[(i+1)%4][KC-1]];
tk[0][0] ^= rcon[rconpointer++];
if (KC != 8)
for(j = 1; j < KC; j++)
for(i = 0; i < 4; i++) tk[i][j] ^= tk[i][j-1];
else {
for(j = 1; j < KC/2; j++)
for(i = 0; i < 4; i++) tk[i][j] ^= tk[i][j-1];
for(i = 0; i < 4; i++) tk[i][KC/2] ^= S[tk[i][KC/2 - 1]];
for(j = KC/2 + 1; j < KC; j++)
for(i = 0; i < 4; i++) tk[i][j] ^= tk[i][j-1];
}
/* copy values into round key array */
for(j = 0; (j < KC) && (t < (ROUNDS+1)*BC); j++, t++)
for(i = 0; i < 4; i++) W[t / BC][i][t % BC] = tk[i][j];
}
return 0;
}
int rijndaelEncrypt (word8 a[4][MAXBC], int keyBits, int blockBits, word8 rk[MAXROUNDS+1][4][MAXBC])
{
/* Encryption of one block.
*/
int r, BC, ROUNDS;
switch (blockBits) {
case 128: BC = 4; break;
case 192: BC = 6; break;
case 256: BC = 8; break;
default : return (-2);
}
switch (keyBits >= blockBits ? keyBits : blockBits) {
case 128: ROUNDS = 10; break;
case 192: ROUNDS = 12; break;
case 256: ROUNDS = 14; break;
default : return (-3); /* this cannot happen */
}
/* begin with a key addition
*/
KeyAddition(a,rk[0],BC);
/* ROUNDS-1 ordinary rounds
*/
for(r = 1; r < ROUNDS; r++) {
Substitution(a,S,BC);
ShiftRow(a,0,BC);
MixColumn(a,BC);
KeyAddition(a,rk[r],BC);
}
/* Last round is special: there is no MixColumn
*/
Substitution(a,S,BC);
ShiftRow(a,0,BC);
KeyAddition(a,rk[ROUNDS],BC);
return 0;
}
int rijndaelEncryptRound (word8 a[4][MAXBC], int keyBits, int blockBits,
word8 rk[MAXROUNDS+1][4][MAXBC], int rounds)
/* Encrypt only a certain number of rounds.
* Only used in the Intermediate Value Known Answer Test.
*/
{
int r, BC, ROUNDS;
switch (blockBits) {
case 128: BC = 4; break;
case 192: BC = 6; break;
case 256: BC = 8; break;
default : return (-2);
}
switch (keyBits >= blockBits ? keyBits : blockBits) {
case 128: ROUNDS = 10; break;
case 192: ROUNDS = 12; break;
case 256: ROUNDS = 14; break;
default : return (-3); /* this cannot happen */
}
/* make number of rounds sane */
if (rounds > ROUNDS) rounds = ROUNDS;
/* begin with a key addition
*/
KeyAddition(a,rk[0],BC);
/* at most ROUNDS-1 ordinary rounds
*/
for(r = 1; (r <= rounds) && (r < ROUNDS); r++) {
Substitution(a,S,BC);
ShiftRow(a,0,BC);
MixColumn(a,BC);
KeyAddition(a,rk[r],BC);
}
/* if necessary, do the last, special, round:
*/
if (rounds == ROUNDS) {
Substitution(a,S,BC);
ShiftRow(a,0,BC);
KeyAddition(a,rk[ROUNDS],BC);
}
return 0;
}
int rijndaelDecrypt (word8 a[4][MAXBC], int keyBits, int blockBits, word8 rk[MAXROUNDS+1][4][MAXBC])
{
int r, BC, ROUNDS;
switch (blockBits) {
case 128: BC = 4; break;
case 192: BC = 6; break;
case 256: BC = 8; break;
default : return (-2);
}
switch (keyBits >= blockBits ? keyBits : blockBits) {
case 128: ROUNDS = 10; break;
case 192: ROUNDS = 12; break;
case 256: ROUNDS = 14; break;
default : return (-3); /* this cannot happen */
}
/* To decrypt: apply the inverse operations of the encrypt routine,
* in opposite order
*
* (KeyAddition is an involution: it 's equal to its inverse)
* (the inverse of Substitution with table S is Substitution with the inverse table of S)
* (the inverse of Shiftrow is Shiftrow over a suitable distance)
*/
/* First the special round:
* without InvMixColumn
* with extra KeyAddition
*/
KeyAddition(a,rk[ROUNDS],BC);
Substitution(a,Si,BC);
ShiftRow(a,1,BC);
/* ROUNDS-1 ordinary rounds
*/
for(r = ROUNDS-1; r > 0; r--) {
KeyAddition(a,rk[r],BC);
InvMixColumn(a,BC);
Substitution(a,Si,BC);
ShiftRow(a,1,BC);
}
/* End with the extra key addition
*/
KeyAddition(a,rk[0],BC);
return 0;
}
int rijndaelDecryptRound (word8 a[4][MAXBC], int keyBits, int blockBits,
word8 rk[MAXROUNDS+1][4][MAXBC], int rounds)
/* Decrypt only a certain number of rounds.
* Only used in the Intermediate Value Known Answer Test.
* Operations rearranged such that the intermediate values
* of decryption correspond with the intermediate values
* of encryption.
*/
{
int r, BC, ROUNDS;
switch (blockBits) {
case 128: BC = 4; break;
case 192: BC = 6; break;
case 256: BC = 8; break;
default : return (-2);
}
switch (keyBits >= blockBits ? keyBits : blockBits) {
case 128: ROUNDS = 10; break;
case 192: ROUNDS = 12; break;
case 256: ROUNDS = 14; break;
default : return (-3); /* this cannot happen */
}
/* make number of rounds sane */
if (rounds > ROUNDS) rounds = ROUNDS;
/* First the special round:
* without InvMixColumn
* with extra KeyAddition
*/
KeyAddition(a,rk[ROUNDS],BC);
Substitution(a,Si,BC);
ShiftRow(a,1,BC);
/* ROUNDS-1 ordinary rounds
*/
for(r = ROUNDS-1; r > rounds; r--) {
KeyAddition(a,rk[r],BC);
InvMixColumn(a,BC);
Substitution(a,Si,BC);
ShiftRow(a,1,BC);
}
if (rounds == 0) {
/* End with the extra key addition
*/
KeyAddition(a,rk[0],BC);
}
return 0;
}
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**AES加密解密** 在信息安全领域，数据加密是保护数据隐私和安全的重要手段。Advanced Encryption Standard（AES，高级加密标准）是一种广泛使用的块密码，它以其高效性和安全性著称。本话题将深入探讨AES加密解密...
AES（Advanced Encryption Standard）是目前广泛应用的对称加密标准，特别是在数据安全、网络通信和存储等领域。AES128指的是使用128位密钥版本的AES算法。在这个项目中，我们将探讨如何使用VERILOG硬件描述语言来...
**AES加解密JS文件详解** 在信息安全领域，数据加密是一种关键的技术，它能保护敏感信息免受未经授权的访问。其中，AES（Advanced Encryption Standard）是广泛应用的一种对称加密算法，因其高效、安全而备受青睐。...