diff options
Diffstat (limited to 'src/lib/libcrypto/des/set_key.c')
-rw-r--r-- | src/lib/libcrypto/des/set_key.c | 199 |
1 files changed, 177 insertions, 22 deletions
diff --git a/src/lib/libcrypto/des/set_key.c b/src/lib/libcrypto/des/set_key.c index bbdc71ba6b..09afd4fc03 100644 --- a/src/lib/libcrypto/des/set_key.c +++ b/src/lib/libcrypto/des/set_key.c | |||
@@ -64,12 +64,27 @@ | |||
64 | * 1.0 First working version | 64 | * 1.0 First working version |
65 | */ | 65 | */ |
66 | #include "des_locl.h" | 66 | #include "des_locl.h" |
67 | #include "podd.h" | ||
68 | #include "sk.h" | ||
69 | 67 | ||
70 | static int check_parity(const_des_cblock *key); | ||
71 | OPENSSL_GLOBAL int des_check_key=0; | 68 | OPENSSL_GLOBAL int des_check_key=0; |
72 | 69 | ||
70 | static const unsigned char odd_parity[256]={ | ||
71 | 1, 1, 2, 2, 4, 4, 7, 7, 8, 8, 11, 11, 13, 13, 14, 14, | ||
72 | 16, 16, 19, 19, 21, 21, 22, 22, 25, 25, 26, 26, 28, 28, 31, 31, | ||
73 | 32, 32, 35, 35, 37, 37, 38, 38, 41, 41, 42, 42, 44, 44, 47, 47, | ||
74 | 49, 49, 50, 50, 52, 52, 55, 55, 56, 56, 59, 59, 61, 61, 62, 62, | ||
75 | 64, 64, 67, 67, 69, 69, 70, 70, 73, 73, 74, 74, 76, 76, 79, 79, | ||
76 | 81, 81, 82, 82, 84, 84, 87, 87, 88, 88, 91, 91, 93, 93, 94, 94, | ||
77 | 97, 97, 98, 98,100,100,103,103,104,104,107,107,109,109,110,110, | ||
78 | 112,112,115,115,117,117,118,118,121,121,122,122,124,124,127,127, | ||
79 | 128,128,131,131,133,133,134,134,137,137,138,138,140,140,143,143, | ||
80 | 145,145,146,146,148,148,151,151,152,152,155,155,157,157,158,158, | ||
81 | 161,161,162,162,164,164,167,167,168,168,171,171,173,173,174,174, | ||
82 | 176,176,179,179,181,181,182,182,185,185,186,186,188,188,191,191, | ||
83 | 193,193,194,194,196,196,199,199,200,200,203,203,205,205,206,206, | ||
84 | 208,208,211,211,213,213,214,214,217,217,218,218,220,220,223,223, | ||
85 | 224,224,227,227,229,229,230,230,233,233,234,234,236,236,239,239, | ||
86 | 241,241,242,242,244,244,247,247,248,248,251,251,253,253,254,254}; | ||
87 | |||
73 | void des_set_odd_parity(des_cblock *key) | 88 | void des_set_odd_parity(des_cblock *key) |
74 | { | 89 | { |
75 | int i; | 90 | int i; |
@@ -78,7 +93,7 @@ void des_set_odd_parity(des_cblock *key) | |||
78 | (*key)[i]=odd_parity[(*key)[i]]; | 93 | (*key)[i]=odd_parity[(*key)[i]]; |
79 | } | 94 | } |
80 | 95 | ||
81 | static int check_parity(const_des_cblock *key) | 96 | int des_check_key_parity(const_des_cblock *key) |
82 | { | 97 | { |
83 | int i; | 98 | int i; |
84 | 99 | ||
@@ -145,6 +160,153 @@ int des_is_weak_key(const_des_cblock *key) | |||
145 | #define HPERM_OP(a,t,n,m) ((t)=((((a)<<(16-(n)))^(a))&(m)),\ | 160 | #define HPERM_OP(a,t,n,m) ((t)=((((a)<<(16-(n)))^(a))&(m)),\ |
146 | (a)=(a)^(t)^(t>>(16-(n)))) | 161 | (a)=(a)^(t)^(t>>(16-(n)))) |
147 | 162 | ||
163 | static const DES_LONG des_skb[8][64]={ | ||
164 | { | ||
165 | /* for C bits (numbered as per FIPS 46) 1 2 3 4 5 6 */ | ||
166 | 0x00000000L,0x00000010L,0x20000000L,0x20000010L, | ||
167 | 0x00010000L,0x00010010L,0x20010000L,0x20010010L, | ||
168 | 0x00000800L,0x00000810L,0x20000800L,0x20000810L, | ||
169 | 0x00010800L,0x00010810L,0x20010800L,0x20010810L, | ||
170 | 0x00000020L,0x00000030L,0x20000020L,0x20000030L, | ||
171 | 0x00010020L,0x00010030L,0x20010020L,0x20010030L, | ||
172 | 0x00000820L,0x00000830L,0x20000820L,0x20000830L, | ||
173 | 0x00010820L,0x00010830L,0x20010820L,0x20010830L, | ||
174 | 0x00080000L,0x00080010L,0x20080000L,0x20080010L, | ||
175 | 0x00090000L,0x00090010L,0x20090000L,0x20090010L, | ||
176 | 0x00080800L,0x00080810L,0x20080800L,0x20080810L, | ||
177 | 0x00090800L,0x00090810L,0x20090800L,0x20090810L, | ||
178 | 0x00080020L,0x00080030L,0x20080020L,0x20080030L, | ||
179 | 0x00090020L,0x00090030L,0x20090020L,0x20090030L, | ||
180 | 0x00080820L,0x00080830L,0x20080820L,0x20080830L, | ||
181 | 0x00090820L,0x00090830L,0x20090820L,0x20090830L, | ||
182 | },{ | ||
183 | /* for C bits (numbered as per FIPS 46) 7 8 10 11 12 13 */ | ||
184 | 0x00000000L,0x02000000L,0x00002000L,0x02002000L, | ||
185 | 0x00200000L,0x02200000L,0x00202000L,0x02202000L, | ||
186 | 0x00000004L,0x02000004L,0x00002004L,0x02002004L, | ||
187 | 0x00200004L,0x02200004L,0x00202004L,0x02202004L, | ||
188 | 0x00000400L,0x02000400L,0x00002400L,0x02002400L, | ||
189 | 0x00200400L,0x02200400L,0x00202400L,0x02202400L, | ||
190 | 0x00000404L,0x02000404L,0x00002404L,0x02002404L, | ||
191 | 0x00200404L,0x02200404L,0x00202404L,0x02202404L, | ||
192 | 0x10000000L,0x12000000L,0x10002000L,0x12002000L, | ||
193 | 0x10200000L,0x12200000L,0x10202000L,0x12202000L, | ||
194 | 0x10000004L,0x12000004L,0x10002004L,0x12002004L, | ||
195 | 0x10200004L,0x12200004L,0x10202004L,0x12202004L, | ||
196 | 0x10000400L,0x12000400L,0x10002400L,0x12002400L, | ||
197 | 0x10200400L,0x12200400L,0x10202400L,0x12202400L, | ||
198 | 0x10000404L,0x12000404L,0x10002404L,0x12002404L, | ||
199 | 0x10200404L,0x12200404L,0x10202404L,0x12202404L, | ||
200 | },{ | ||
201 | /* for C bits (numbered as per FIPS 46) 14 15 16 17 19 20 */ | ||
202 | 0x00000000L,0x00000001L,0x00040000L,0x00040001L, | ||
203 | 0x01000000L,0x01000001L,0x01040000L,0x01040001L, | ||
204 | 0x00000002L,0x00000003L,0x00040002L,0x00040003L, | ||
205 | 0x01000002L,0x01000003L,0x01040002L,0x01040003L, | ||
206 | 0x00000200L,0x00000201L,0x00040200L,0x00040201L, | ||
207 | 0x01000200L,0x01000201L,0x01040200L,0x01040201L, | ||
208 | 0x00000202L,0x00000203L,0x00040202L,0x00040203L, | ||
209 | 0x01000202L,0x01000203L,0x01040202L,0x01040203L, | ||
210 | 0x08000000L,0x08000001L,0x08040000L,0x08040001L, | ||
211 | 0x09000000L,0x09000001L,0x09040000L,0x09040001L, | ||
212 | 0x08000002L,0x08000003L,0x08040002L,0x08040003L, | ||
213 | 0x09000002L,0x09000003L,0x09040002L,0x09040003L, | ||
214 | 0x08000200L,0x08000201L,0x08040200L,0x08040201L, | ||
215 | 0x09000200L,0x09000201L,0x09040200L,0x09040201L, | ||
216 | 0x08000202L,0x08000203L,0x08040202L,0x08040203L, | ||
217 | 0x09000202L,0x09000203L,0x09040202L,0x09040203L, | ||
218 | },{ | ||
219 | /* for C bits (numbered as per FIPS 46) 21 23 24 26 27 28 */ | ||
220 | 0x00000000L,0x00100000L,0x00000100L,0x00100100L, | ||
221 | 0x00000008L,0x00100008L,0x00000108L,0x00100108L, | ||
222 | 0x00001000L,0x00101000L,0x00001100L,0x00101100L, | ||
223 | 0x00001008L,0x00101008L,0x00001108L,0x00101108L, | ||
224 | 0x04000000L,0x04100000L,0x04000100L,0x04100100L, | ||
225 | 0x04000008L,0x04100008L,0x04000108L,0x04100108L, | ||
226 | 0x04001000L,0x04101000L,0x04001100L,0x04101100L, | ||
227 | 0x04001008L,0x04101008L,0x04001108L,0x04101108L, | ||
228 | 0x00020000L,0x00120000L,0x00020100L,0x00120100L, | ||
229 | 0x00020008L,0x00120008L,0x00020108L,0x00120108L, | ||
230 | 0x00021000L,0x00121000L,0x00021100L,0x00121100L, | ||
231 | 0x00021008L,0x00121008L,0x00021108L,0x00121108L, | ||
232 | 0x04020000L,0x04120000L,0x04020100L,0x04120100L, | ||
233 | 0x04020008L,0x04120008L,0x04020108L,0x04120108L, | ||
234 | 0x04021000L,0x04121000L,0x04021100L,0x04121100L, | ||
235 | 0x04021008L,0x04121008L,0x04021108L,0x04121108L, | ||
236 | },{ | ||
237 | /* for D bits (numbered as per FIPS 46) 1 2 3 4 5 6 */ | ||
238 | 0x00000000L,0x10000000L,0x00010000L,0x10010000L, | ||
239 | 0x00000004L,0x10000004L,0x00010004L,0x10010004L, | ||
240 | 0x20000000L,0x30000000L,0x20010000L,0x30010000L, | ||
241 | 0x20000004L,0x30000004L,0x20010004L,0x30010004L, | ||
242 | 0x00100000L,0x10100000L,0x00110000L,0x10110000L, | ||
243 | 0x00100004L,0x10100004L,0x00110004L,0x10110004L, | ||
244 | 0x20100000L,0x30100000L,0x20110000L,0x30110000L, | ||
245 | 0x20100004L,0x30100004L,0x20110004L,0x30110004L, | ||
246 | 0x00001000L,0x10001000L,0x00011000L,0x10011000L, | ||
247 | 0x00001004L,0x10001004L,0x00011004L,0x10011004L, | ||
248 | 0x20001000L,0x30001000L,0x20011000L,0x30011000L, | ||
249 | 0x20001004L,0x30001004L,0x20011004L,0x30011004L, | ||
250 | 0x00101000L,0x10101000L,0x00111000L,0x10111000L, | ||
251 | 0x00101004L,0x10101004L,0x00111004L,0x10111004L, | ||
252 | 0x20101000L,0x30101000L,0x20111000L,0x30111000L, | ||
253 | 0x20101004L,0x30101004L,0x20111004L,0x30111004L, | ||
254 | },{ | ||
255 | /* for D bits (numbered as per FIPS 46) 8 9 11 12 13 14 */ | ||
256 | 0x00000000L,0x08000000L,0x00000008L,0x08000008L, | ||
257 | 0x00000400L,0x08000400L,0x00000408L,0x08000408L, | ||
258 | 0x00020000L,0x08020000L,0x00020008L,0x08020008L, | ||
259 | 0x00020400L,0x08020400L,0x00020408L,0x08020408L, | ||
260 | 0x00000001L,0x08000001L,0x00000009L,0x08000009L, | ||
261 | 0x00000401L,0x08000401L,0x00000409L,0x08000409L, | ||
262 | 0x00020001L,0x08020001L,0x00020009L,0x08020009L, | ||
263 | 0x00020401L,0x08020401L,0x00020409L,0x08020409L, | ||
264 | 0x02000000L,0x0A000000L,0x02000008L,0x0A000008L, | ||
265 | 0x02000400L,0x0A000400L,0x02000408L,0x0A000408L, | ||
266 | 0x02020000L,0x0A020000L,0x02020008L,0x0A020008L, | ||
267 | 0x02020400L,0x0A020400L,0x02020408L,0x0A020408L, | ||
268 | 0x02000001L,0x0A000001L,0x02000009L,0x0A000009L, | ||
269 | 0x02000401L,0x0A000401L,0x02000409L,0x0A000409L, | ||
270 | 0x02020001L,0x0A020001L,0x02020009L,0x0A020009L, | ||
271 | 0x02020401L,0x0A020401L,0x02020409L,0x0A020409L, | ||
272 | },{ | ||
273 | /* for D bits (numbered as per FIPS 46) 16 17 18 19 20 21 */ | ||
274 | 0x00000000L,0x00000100L,0x00080000L,0x00080100L, | ||
275 | 0x01000000L,0x01000100L,0x01080000L,0x01080100L, | ||
276 | 0x00000010L,0x00000110L,0x00080010L,0x00080110L, | ||
277 | 0x01000010L,0x01000110L,0x01080010L,0x01080110L, | ||
278 | 0x00200000L,0x00200100L,0x00280000L,0x00280100L, | ||
279 | 0x01200000L,0x01200100L,0x01280000L,0x01280100L, | ||
280 | 0x00200010L,0x00200110L,0x00280010L,0x00280110L, | ||
281 | 0x01200010L,0x01200110L,0x01280010L,0x01280110L, | ||
282 | 0x00000200L,0x00000300L,0x00080200L,0x00080300L, | ||
283 | 0x01000200L,0x01000300L,0x01080200L,0x01080300L, | ||
284 | 0x00000210L,0x00000310L,0x00080210L,0x00080310L, | ||
285 | 0x01000210L,0x01000310L,0x01080210L,0x01080310L, | ||
286 | 0x00200200L,0x00200300L,0x00280200L,0x00280300L, | ||
287 | 0x01200200L,0x01200300L,0x01280200L,0x01280300L, | ||
288 | 0x00200210L,0x00200310L,0x00280210L,0x00280310L, | ||
289 | 0x01200210L,0x01200310L,0x01280210L,0x01280310L, | ||
290 | },{ | ||
291 | /* for D bits (numbered as per FIPS 46) 22 23 24 25 27 28 */ | ||
292 | 0x00000000L,0x04000000L,0x00040000L,0x04040000L, | ||
293 | 0x00000002L,0x04000002L,0x00040002L,0x04040002L, | ||
294 | 0x00002000L,0x04002000L,0x00042000L,0x04042000L, | ||
295 | 0x00002002L,0x04002002L,0x00042002L,0x04042002L, | ||
296 | 0x00000020L,0x04000020L,0x00040020L,0x04040020L, | ||
297 | 0x00000022L,0x04000022L,0x00040022L,0x04040022L, | ||
298 | 0x00002020L,0x04002020L,0x00042020L,0x04042020L, | ||
299 | 0x00002022L,0x04002022L,0x00042022L,0x04042022L, | ||
300 | 0x00000800L,0x04000800L,0x00040800L,0x04040800L, | ||
301 | 0x00000802L,0x04000802L,0x00040802L,0x04040802L, | ||
302 | 0x00002800L,0x04002800L,0x00042800L,0x04042800L, | ||
303 | 0x00002802L,0x04002802L,0x00042802L,0x04042802L, | ||
304 | 0x00000820L,0x04000820L,0x00040820L,0x04040820L, | ||
305 | 0x00000822L,0x04000822L,0x00040822L,0x04040822L, | ||
306 | 0x00002820L,0x04002820L,0x00042820L,0x04042820L, | ||
307 | 0x00002822L,0x04002822L,0x00042822L,0x04042822L, | ||
308 | }}; | ||
309 | |||
148 | int des_set_key(const_des_cblock *key, des_key_schedule schedule) | 310 | int des_set_key(const_des_cblock *key, des_key_schedule schedule) |
149 | { | 311 | { |
150 | if (des_check_key) | 312 | if (des_check_key) |
@@ -164,7 +326,7 @@ int des_set_key(const_des_cblock *key, des_key_schedule schedule) | |||
164 | */ | 326 | */ |
165 | int des_set_key_checked(const_des_cblock *key, des_key_schedule schedule) | 327 | int des_set_key_checked(const_des_cblock *key, des_key_schedule schedule) |
166 | { | 328 | { |
167 | if (!check_parity(key)) | 329 | if (!des_check_key_parity(key)) |
168 | return(-1); | 330 | return(-1); |
169 | if (des_is_weak_key(key)) | 331 | if (des_is_weak_key(key)) |
170 | return(-2); | 332 | return(-2); |
@@ -186,20 +348,7 @@ void des_set_key_unchecked(const_des_cblock *key, des_key_schedule schedule) | |||
186 | c2l(in,c); | 348 | c2l(in,c); |
187 | c2l(in,d); | 349 | c2l(in,d); |
188 | 350 | ||
189 | /* do PC1 in 60 simple operations */ | 351 | /* do PC1 in 47 simple operations :-) |
190 | /* PERM_OP(d,c,t,4,0x0f0f0f0fL); | ||
191 | HPERM_OP(c,t,-2, 0xcccc0000L); | ||
192 | HPERM_OP(c,t,-1, 0xaaaa0000L); | ||
193 | HPERM_OP(c,t, 8, 0x00ff0000L); | ||
194 | HPERM_OP(c,t,-1, 0xaaaa0000L); | ||
195 | HPERM_OP(d,t,-8, 0xff000000L); | ||
196 | HPERM_OP(d,t, 8, 0x00ff0000L); | ||
197 | HPERM_OP(d,t, 2, 0x33330000L); | ||
198 | d=((d&0x00aa00aaL)<<7L)|((d&0x55005500L)>>7L)|(d&0xaa55aa55L); | ||
199 | d=(d>>8)|((c&0xf0000000L)>>4); | ||
200 | c&=0x0fffffffL; */ | ||
201 | |||
202 | /* I now do it in 47 simple operations :-) | ||
203 | * Thanks to John Fletcher (john_fletcher@lccmail.ocf.llnl.gov) | 352 | * Thanks to John Fletcher (john_fletcher@lccmail.ocf.llnl.gov) |
204 | * for the inspiration. :-) */ | 353 | * for the inspiration. :-) */ |
205 | PERM_OP (d,c,t,4,0x0f0f0f0fL); | 354 | PERM_OP (d,c,t,4,0x0f0f0f0fL); |
@@ -223,9 +372,9 @@ void des_set_key_unchecked(const_des_cblock *key, des_key_schedule schedule) | |||
223 | /* could be a few less shifts but I am to lazy at this | 372 | /* could be a few less shifts but I am to lazy at this |
224 | * point in time to investigate */ | 373 | * point in time to investigate */ |
225 | s= des_skb[0][ (c )&0x3f ]| | 374 | s= des_skb[0][ (c )&0x3f ]| |
226 | des_skb[1][((c>> 6)&0x03)|((c>> 7L)&0x3c)]| | 375 | des_skb[1][((c>> 6L)&0x03)|((c>> 7L)&0x3c)]| |
227 | des_skb[2][((c>>13)&0x0f)|((c>>14L)&0x30)]| | 376 | des_skb[2][((c>>13L)&0x0f)|((c>>14L)&0x30)]| |
228 | des_skb[3][((c>>20)&0x01)|((c>>21L)&0x06) | | 377 | des_skb[3][((c>>20L)&0x01)|((c>>21L)&0x06) | |
229 | ((c>>22L)&0x38)]; | 378 | ((c>>22L)&0x38)]; |
230 | t= des_skb[4][ (d )&0x3f ]| | 379 | t= des_skb[4][ (d )&0x3f ]| |
231 | des_skb[5][((d>> 7L)&0x03)|((d>> 8L)&0x3c)]| | 380 | des_skb[5][((d>> 7L)&0x03)|((d>> 8L)&0x3c)]| |
@@ -245,3 +394,9 @@ int des_key_sched(const_des_cblock *key, des_key_schedule schedule) | |||
245 | { | 394 | { |
246 | return(des_set_key(key,schedule)); | 395 | return(des_set_key(key,schedule)); |
247 | } | 396 | } |
397 | |||
398 | #undef des_fixup_key_parity | ||
399 | void des_fixup_key_parity(des_cblock *key) | ||
400 | { | ||
401 | des_set_odd_parity(key); | ||
402 | } | ||