1 |
2 |
truemind |
//////////////////////////////////////////////////////////////////////
|
2 |
|
|
//// ////
|
3 |
|
|
//// Source file of hight core functions for HIGHT Integer Model ////
|
4 |
|
|
//// ////
|
5 |
|
|
//// This file is part of the HIGHT Crypto Core project ////
|
6 |
|
|
//// http://github.com/OpenSoCPlus/hight_crypto_core ////
|
7 |
|
|
//// http://www.opencores.org/project,hight ////
|
8 |
|
|
//// ////
|
9 |
|
|
//// Description ////
|
10 |
|
|
//// __description__ ////
|
11 |
|
|
//// ////
|
12 |
|
|
//// Author(s): ////
|
13 |
|
|
//// - JoonSoo Ha, json.ha@gmail.com ////
|
14 |
|
|
//// - Younjoo Kim, younjookim.kr@gmail.com ////
|
15 |
|
|
//// ////
|
16 |
|
|
//////////////////////////////////////////////////////////////////////
|
17 |
|
|
//// ////
|
18 |
|
|
//// Copyright (C) 2015 Authors, OpenSoCPlus and OPENCORES.ORG ////
|
19 |
|
|
//// ////
|
20 |
|
|
//// This source file may be used and distributed without ////
|
21 |
|
|
//// restriction provided that this copyright statement is not ////
|
22 |
|
|
//// removed from the file and that any derivative work contains ////
|
23 |
|
|
//// the original copyright notice and the associated disclaimer. ////
|
24 |
|
|
//// ////
|
25 |
|
|
//// This source file is free software; you can redistribute it ////
|
26 |
|
|
//// and/or modify it under the terms of the GNU Lesser General ////
|
27 |
|
|
//// Public License as published by the Free Software Foundation; ////
|
28 |
|
|
//// either version 2.1 of the License, or (at your option) any ////
|
29 |
|
|
//// later version. ////
|
30 |
|
|
//// ////
|
31 |
|
|
//// This source is distributed in the hope that it will be ////
|
32 |
|
|
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
|
33 |
|
|
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
|
34 |
|
|
//// PURPOSE. See the GNU Lesser General Public License for more ////
|
35 |
|
|
//// details. ////
|
36 |
|
|
//// ////
|
37 |
|
|
//// You should have received a copy of the GNU Lesser General ////
|
38 |
|
|
//// Public License along with this source; if not, download it ////
|
39 |
|
|
//// from http://www.opencores.org/lgpl.shtml ////
|
40 |
|
|
//// ////
|
41 |
|
|
//////////////////////////////////////////////////////////////////////
|
42 |
|
|
|
43 |
|
|
#include "hight.h"
|
44 |
|
|
#include <stdio.h>
|
45 |
|
|
#include <string.h>
|
46 |
|
|
|
47 |
|
|
//#define SUB_KEY_GEN_DUMP
|
48 |
|
|
|
49 |
|
|
|
50 |
|
|
/* =====================================
|
51 |
|
|
|
52 |
|
|
WhiteningKeyGen (WKG)
|
53 |
|
|
|
54 |
|
|
=======================================*/
|
55 |
|
|
void WhiteningKeyGen(byte *i_mk, byte *o_wk)
|
56 |
|
|
{
|
57 |
|
|
|
58 |
|
|
|
59 |
|
|
o_wk[0] = i_mk[12];
|
60 |
|
|
o_wk[1] = i_mk[13];
|
61 |
|
|
o_wk[2] = i_mk[14];
|
62 |
|
|
o_wk[3] = i_mk[15];
|
63 |
|
|
o_wk[4] = i_mk[ 0];
|
64 |
|
|
o_wk[5] = i_mk[ 1];
|
65 |
|
|
o_wk[6] = i_mk[ 2];
|
66 |
|
|
o_wk[7] = i_mk[ 3];
|
67 |
|
|
}
|
68 |
|
|
|
69 |
|
|
|
70 |
|
|
|
71 |
|
|
/* =====================================
|
72 |
|
|
|
73 |
|
|
DeltaGen (DG)
|
74 |
|
|
|
75 |
|
|
=======================================*/
|
76 |
|
|
void DeltaGen(byte *o_delta)
|
77 |
|
|
{
|
78 |
|
|
static byte s[133];
|
79 |
|
|
int i;
|
80 |
|
|
|
81 |
|
|
s[0] = 0 ;
|
82 |
|
|
s[1] = 1 ;
|
83 |
|
|
s[2] = 0 ;
|
84 |
|
|
s[3] = 1 ;
|
85 |
|
|
s[4] = 1 ;
|
86 |
|
|
s[5] = 0 ;
|
87 |
|
|
s[6] = 1 ;
|
88 |
|
|
|
89 |
|
|
|
90 |
|
|
for(i=1; i<128; i++){
|
91 |
|
|
s[i+6]= s[i+2]^s[i-1];
|
92 |
|
|
}
|
93 |
|
|
|
94 |
|
|
o_delta[0] = s[0]|s[1]<<1|s[2]<<2|s[3]<<3|s[4]<<4|s[5]<<5|s[6]<<6;
|
95 |
|
|
for(i=1; i<128; i++){
|
96 |
|
|
o_delta[i] = s[i]|s[i+1]<<1|s[i+2]<<2|s[i+3]<<3|s[i+4]<<4|s[i+5]<<5|s[i+6]<<6;
|
97 |
|
|
}
|
98 |
|
|
}
|
99 |
|
|
|
100 |
|
|
|
101 |
|
|
|
102 |
|
|
/* =====================================
|
103 |
|
|
|
104 |
|
|
SubKeyGen (SKG)
|
105 |
|
|
|
106 |
|
|
=======================================*/
|
107 |
|
|
void SubKeyGen(byte *i_mk, byte *i_delta, byte *o_sk)
|
108 |
|
|
{
|
109 |
|
|
int i, j;
|
110 |
|
|
#ifdef SUB_KEY_GEN_DUMP
|
111 |
|
|
FILE *fp = fopen("result.txt", "w+");
|
112 |
|
|
#endif
|
113 |
|
|
|
114 |
|
|
/*
|
115 |
|
|
// print delta values
|
116 |
|
|
for (i=0; i<128; i++){
|
117 |
|
|
printf("%02X ", i_delta[i]);
|
118 |
|
|
if(i%8 == 7)
|
119 |
|
|
printf("\n");
|
120 |
|
|
}
|
121 |
|
|
*/
|
122 |
|
|
|
123 |
|
|
for(i=0; i<8; i++){
|
124 |
|
|
for(j=0; j<8; j++){
|
125 |
|
|
o_sk[16*i+j]=(byte)(i_mk[(j-i)&7]+i_delta[16*i+j]);
|
126 |
|
|
#ifdef SUB_KEY_GEN_DUMP
|
127 |
|
|
fprintf(fp, "rk[%d]:%02X = (mk[%d]:%02X + delta[%d]:%02X\n", 16*i+j, o_sk[16*i+j],
|
128 |
|
|
(j-i)&7, i_mk[(j-i)&7],
|
129 |
|
|
16*i+j, i_delta[16*i+j]); // comp
|
130 |
|
|
#endif
|
131 |
|
|
}
|
132 |
|
|
for(j=0; j<8; j++){
|
133 |
|
|
o_sk[16*i+j+8]=(byte)(i_mk[((j-i)&7)+8]+i_delta[16*i+j+8]);
|
134 |
|
|
#ifdef SUB_KEY_GEN_DUMP
|
135 |
|
|
fprintf(fp, "rk[%d]:%02X = (mk[%d]:%02X + delta[%d]:%02X\n", 16*i+j+8, o_sk[16*i+j+8],
|
136 |
|
|
((j-i)&7)+8, i_mk[((j-i)&7)+8],
|
137 |
|
|
16*i+j+8, i_delta[16*i+j+8]); // comp
|
138 |
|
|
#endif
|
139 |
|
|
}
|
140 |
|
|
}
|
141 |
|
|
|
142 |
|
|
#ifdef SUB_KEY_GEN_DUMP
|
143 |
|
|
fclose(fp); // comp
|
144 |
|
|
#endif
|
145 |
|
|
}
|
146 |
|
|
|
147 |
|
|
|
148 |
|
|
/* =====================================
|
149 |
|
|
|
150 |
|
|
InitialWhiteningFunction (IWF)
|
151 |
|
|
|
152 |
|
|
=======================================*/
|
153 |
|
|
void InitialWhiteningFunction(int i_op, byte *i_pc_text, byte *i_wk, byte *o_xx)
|
154 |
|
|
{
|
155 |
|
|
o_xx[7] = i_pc_text[7];
|
156 |
|
|
o_xx[6] = (i_op == ENC) ? i_pc_text[6] ^ i_wk[3] :
|
157 |
|
|
i_pc_text[6] ^ i_wk[3] ; // op == DEC
|
158 |
|
|
o_xx[5] = i_pc_text[5];
|
159 |
|
|
o_xx[4] = (i_op == ENC) ? (i_pc_text[4] + i_wk[2])&0xff :
|
160 |
|
|
(i_pc_text[4] - i_wk[2])&0xff ; // op == DEC
|
161 |
|
|
o_xx[3] = i_pc_text[3];
|
162 |
|
|
o_xx[2] = (i_op == ENC) ? i_pc_text[2] ^ i_wk[1] :
|
163 |
|
|
i_pc_text[2] ^ i_wk[1] ; // op == DEC
|
164 |
|
|
o_xx[1] = i_pc_text[1];
|
165 |
|
|
o_xx[0] = (i_op == ENC) ? (i_pc_text[0] + i_wk[0])&0xff :
|
166 |
|
|
(i_pc_text[0] - i_wk[0])&0xff ; // op == DEC
|
167 |
|
|
|
168 |
|
|
}
|
169 |
|
|
|
170 |
|
|
|
171 |
|
|
/* =====================================
|
172 |
|
|
|
173 |
|
|
InterRoundFunction (IRF)
|
174 |
|
|
|
175 |
|
|
=======================================*/
|
176 |
|
|
void InterRoundFunction(int i_op, byte *i_xx, byte *i_rsk, byte*o_xx)
|
177 |
|
|
{
|
178 |
|
|
o_xx[7] = (i_op == ENC) ? i_xx[6] :
|
179 |
|
|
i_xx[0] ;
|
180 |
|
|
|
181 |
|
|
o_xx[6] = (i_op == ENC) ? i_xx[5] + (((i_xx[4]<<3 | i_xx[4]>>5) ^ (i_xx[4]<<4 | i_xx[4]>>4)
|
182 |
|
|
^ (i_xx[4]<<6 | i_xx[4]>>2))^i_rsk[2])&0xff :
|
183 |
|
|
i_xx[7] ^ (((i_xx[6]<<1 | i_xx[6]>>7) ^ (i_xx[6]<<2 | i_xx[6]>>6)
|
184 |
|
|
^ (i_xx[6]<<7 | i_xx[6]>>1))+i_rsk[0]&0xff) ;
|
185 |
|
|
|
186 |
|
|
o_xx[5] = (i_op == ENC) ? i_xx[4] :
|
187 |
|
|
i_xx[6] ;
|
188 |
|
|
|
189 |
|
|
o_xx[4] = (i_op == ENC) ? i_xx[3] ^ (((i_xx[2]<<1 | i_xx[2]>>7) ^ (i_xx[2]<<2 | i_xx[2]>>6)
|
190 |
|
|
^ (i_xx[2]<<7 | i_xx[2]>>1))+i_rsk[1]&0xff) :
|
191 |
|
|
i_xx[5] - (((i_xx[4]<<3 | i_xx[4]>>5) ^ (i_xx[4]<<4 | i_xx[4]>>4)
|
192 |
|
|
^ (i_xx[4]<<6 | i_xx[4]>>2))^i_rsk[1])&0xff ;
|
193 |
|
|
|
194 |
|
|
o_xx[3] = (i_op == ENC) ? i_xx[2] :
|
195 |
|
|
i_xx[4] ;
|
196 |
|
|
|
197 |
|
|
o_xx[2] = (i_op == ENC) ? i_xx[1] + (((i_xx[0]<<3 | i_xx[0]>>5) ^ (i_xx[0]<<4 | i_xx[0]>>4)
|
198 |
|
|
^ (i_xx[0]<<6 | i_xx[0]>>2))^i_rsk[0])&0xff :
|
199 |
|
|
i_xx[3] ^ (((i_xx[2]<<1 | i_xx[2]>>7) ^ (i_xx[2]<<2 | i_xx[2]>>6)
|
200 |
|
|
^ (i_xx[2]<<7 | i_xx[2]>>1))+i_rsk[2]&0xff) ;
|
201 |
|
|
o_xx[1] = (i_op == ENC) ? i_xx[0] :
|
202 |
|
|
i_xx[2] ;
|
203 |
|
|
|
204 |
|
|
o_xx[0] = (i_op == ENC) ? i_xx[7] ^ (((i_xx[6]<<1 | i_xx[6]>>7) ^ (i_xx[6]<<2 | i_xx[6]>>6)
|
205 |
|
|
^ (i_xx[6]<<7 | i_xx[6]>>1))+i_rsk[3]&0xff) :
|
206 |
|
|
i_xx[1] - (((i_xx[0]<<3 | i_xx[0]>>5) ^ (i_xx[0]<<4 | i_xx[0]>>4)
|
207 |
|
|
^ (i_xx[0]<<6 | i_xx[0]>>2))^i_rsk[3])&0xff ;
|
208 |
|
|
}
|
209 |
|
|
|
210 |
|
|
|
211 |
|
|
/* =====================================
|
212 |
|
|
|
213 |
|
|
FinalRoundFunction (FRF)
|
214 |
|
|
|
215 |
|
|
=======================================*/
|
216 |
|
|
void FinalRoundFunction(int i_op, byte *i_xx, byte *i_rsk, byte *o_rf)
|
217 |
|
|
{
|
218 |
|
|
|
219 |
|
|
o_rf[7] = (i_op == ENC) ? i_xx[7] ^ (((i_xx[6]<<1 | i_xx[6]>>7) ^ (i_xx[6]<<2 | i_xx[6]>>6) ^
|
220 |
|
|
(i_xx[6]<<7 | i_xx[6]>>1))+i_rsk[3]&0xff) :
|
221 |
|
|
i_xx[7] ^ (((i_xx[6]<<1 | i_xx[6]>>7) ^ (i_xx[6]<<2 | i_xx[6]>>6) ^
|
222 |
|
|
(i_xx[6]<<7 | i_xx[6]>>1))+i_rsk[0]&0xff) ;
|
223 |
|
|
|
224 |
|
|
o_rf[6] = i_xx[6];
|
225 |
|
|
|
226 |
|
|
o_rf[5] = (i_op == ENC) ? i_xx[5] + (((i_xx[4]<<3 | i_xx[4]>>5) ^ (i_xx[4]<<4 | i_xx[4]>>4) ^
|
227 |
|
|
(i_xx[4]<<6 | i_xx[4]>>2))^i_rsk[2])&0xff :
|
228 |
|
|
i_xx[5] - (((i_xx[4]<<3 | i_xx[4]>>5) ^ (i_xx[4]<<4 | i_xx[4]>>4) ^
|
229 |
|
|
(i_xx[4]<<6 | i_xx[4]>>2))^i_rsk[1])&0xff;
|
230 |
|
|
|
231 |
|
|
o_rf[4] = i_xx[4];
|
232 |
|
|
|
233 |
|
|
o_rf[3] = (i_op == ENC) ? i_xx[3] ^ (((i_xx[2]<<1 | i_xx[2]>>7) ^ (i_xx[2]<<2 | i_xx[2]>>6) ^
|
234 |
|
|
(i_xx[2]<<7 | i_xx[2]>>1))+i_rsk[1]&0xff) :
|
235 |
|
|
i_xx[3] ^ (((i_xx[2]<<1 | i_xx[2]>>7) ^ (i_xx[2]<<2 | i_xx[2]>>6) ^
|
236 |
|
|
(i_xx[2]<<7 | i_xx[2]>>1))+i_rsk[2]&0xff);
|
237 |
|
|
|
238 |
|
|
o_rf[2] = i_xx[2];
|
239 |
|
|
|
240 |
|
|
o_rf[1] = (i_op == ENC) ? i_xx[1] + (((i_xx[0]<<3 | i_xx[0]>>5) ^ (i_xx[0]<<4 | i_xx[0]>>4) ^
|
241 |
|
|
(i_xx[0]<<6 | i_xx[0]>>2))^i_rsk[0])&0xff :
|
242 |
|
|
i_xx[1] - (((i_xx[0]<<3 | i_xx[0]>>5) ^ (i_xx[0]<<4 | i_xx[0]>>4) ^
|
243 |
|
|
(i_xx[0]<<6 | i_xx[0]>>2))^i_rsk[3])&0xff;
|
244 |
|
|
|
245 |
|
|
o_rf[0] = i_xx[0];
|
246 |
|
|
|
247 |
|
|
}
|
248 |
|
|
|
249 |
|
|
|
250 |
|
|
/* =====================================
|
251 |
|
|
|
252 |
|
|
FinalWhiteningFunction (FWF)
|
253 |
|
|
|
254 |
|
|
=======================================*/
|
255 |
|
|
void FinalWhiteningFunction(int i_op, byte *i_rf, byte *i_wk, byte *o_cp_text)
|
256 |
|
|
{
|
257 |
|
|
|
258 |
|
|
o_cp_text[7] = (i_op == ENC) ? i_rf[7] :
|
259 |
|
|
i_rf[7] ;
|
260 |
|
|
o_cp_text[6] = (i_op == ENC) ? i_rf[6] ^ i_wk[7] :
|
261 |
|
|
i_rf[6] ^ i_wk[7] ; // op == DEC ;
|
262 |
|
|
o_cp_text[5] = (i_op == ENC) ? i_rf[5] :
|
263 |
|
|
i_rf[5];
|
264 |
|
|
o_cp_text[4] = (i_op == ENC) ? (i_rf[4] + i_wk[6])&0xff :
|
265 |
|
|
(i_rf[4] - i_wk[6])&0xff ;
|
266 |
|
|
o_cp_text[3] = (i_op == ENC) ? i_rf[3] :
|
267 |
|
|
i_rf[3] ;
|
268 |
|
|
o_cp_text[2] = (i_op == ENC) ? i_rf[2] ^ i_wk[5] :
|
269 |
|
|
i_rf[2] ^ i_wk[5] ; // op == DEC
|
270 |
|
|
o_cp_text[1] = (i_op == ENC) ? i_rf[1] :
|
271 |
|
|
i_rf[1] ;
|
272 |
|
|
o_cp_text[0] = (i_op == ENC) ? (i_rf[0] + i_wk[4])&0xff :
|
273 |
|
|
(i_rf[0] - i_wk[4])&0xff ; // op == DEC;
|
274 |
|
|
|
275 |
|
|
}
|
276 |
|
|
|
277 |
|
|
|
278 |
|
|
/* =====================================
|
279 |
|
|
|
280 |
|
|
HightTop (HT)
|
281 |
|
|
|
282 |
|
|
=======================================*/
|
283 |
|
|
void HightTop(int i_op, HIGHT_DATA *p_hight_data)
|
284 |
|
|
{
|
285 |
|
|
int i;
|
286 |
|
|
byte w_sk[128] = {0};
|
287 |
|
|
byte w_wf1[8] = {0};
|
288 |
|
|
byte w_wf2[8] = {0};
|
289 |
|
|
|
290 |
|
|
// Whitening Key Generation
|
291 |
|
|
WhiteningKeyGen(p_hight_data->i_mk, p_hight_data->wk);
|
292 |
|
|
|
293 |
|
|
// Delta Generation
|
294 |
|
|
DeltaGen(p_hight_data->delta);
|
295 |
|
|
|
296 |
|
|
// Sub Key Generation
|
297 |
|
|
SubKeyGen(p_hight_data->i_mk,
|
298 |
|
|
p_hight_data->delta,
|
299 |
|
|
p_hight_data->sk);
|
300 |
|
|
|
301 |
|
|
// re-arrange subkey index
|
302 |
|
|
if(i_op == ENC) {
|
303 |
|
|
for(i=0; i<=127; i++)
|
304 |
|
|
w_sk[i] = p_hight_data->sk[i];
|
305 |
|
|
} else if(i_op == DEC) {
|
306 |
|
|
for(i=0; i<=127; i++)
|
307 |
|
|
w_sk[127-i] = p_hight_data->sk[i];
|
308 |
|
|
} else {
|
309 |
|
|
printf("Error\n");
|
310 |
|
|
}
|
311 |
|
|
|
312 |
|
|
// select proper WF related to i_op
|
313 |
|
|
if(i_op == ENC) {
|
314 |
|
|
InitialWhiteningFunction(i_op, p_hight_data->i_pct, p_hight_data->wk, p_hight_data->iwf);
|
315 |
|
|
memcpy(w_wf1, p_hight_data->iwf, 8);
|
316 |
|
|
} else if(i_op == DEC) {
|
317 |
|
|
FinalWhiteningFunction(i_op, p_hight_data->i_pct, p_hight_data->wk, p_hight_data->fwf);
|
318 |
|
|
memcpy(w_wf1, p_hight_data->fwf, 8);
|
319 |
|
|
} else {
|
320 |
|
|
printf("Error\n");
|
321 |
|
|
}
|
322 |
|
|
|
323 |
|
|
|
324 |
|
|
// RoundFunction1
|
325 |
|
|
InterRoundFunction(i_op,
|
326 |
|
|
w_wf1,
|
327 |
|
|
w_sk,
|
328 |
|
|
p_hight_data->rf[1]);
|
329 |
|
|
|
330 |
|
|
// InterRoundFunction2~31
|
331 |
|
|
for(i=1; i<31; i++){
|
332 |
|
|
InterRoundFunction(i_op,
|
333 |
|
|
p_hight_data->rf[i],
|
334 |
|
|
w_sk+(i*4),
|
335 |
|
|
p_hight_data->rf[i+1]);
|
336 |
|
|
}
|
337 |
|
|
// RoundFunction32
|
338 |
|
|
FinalRoundFunction(i_op,
|
339 |
|
|
p_hight_data->rf[31],
|
340 |
|
|
w_sk+(31*4),
|
341 |
|
|
p_hight_data->rf[32]);
|
342 |
|
|
|
343 |
|
|
// select proper WF related to i_op
|
344 |
|
|
if(i_op == ENC){
|
345 |
|
|
FinalWhiteningFunction(i_op, p_hight_data->rf[32], p_hight_data->wk, p_hight_data->fwf);
|
346 |
|
|
memcpy(w_wf2, p_hight_data->fwf, 8);
|
347 |
|
|
} else if(i_op == DEC) {
|
348 |
|
|
InitialWhiteningFunction(i_op, p_hight_data->rf[32], p_hight_data->wk, p_hight_data->iwf);
|
349 |
|
|
memcpy(w_wf2, p_hight_data->iwf, 8);
|
350 |
|
|
} else {
|
351 |
|
|
printf("Error\n");
|
352 |
|
|
}
|
353 |
|
|
|
354 |
|
|
// assign output
|
355 |
|
|
memcpy(p_hight_data->o_cpt, w_wf2, 8);
|
356 |
|
|
}
|