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comparison mycrypt_cipher.h @ 3:7faae8f46238 libtomcrypt-orig

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Branch renaming
author Matt Johnston <matt@ucc.asn.au>
date Mon, 31 May 2004 18:25:41 +0000
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children 6362d3854bb4
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-1:000000000000 3:7faae8f46238
1 /* ---- SYMMETRIC KEY STUFF -----
2 *
3 * We put each of the ciphers scheduled keys in their own structs then we put all of
4 * the key formats in one union. This makes the function prototypes easier to use.
5 */
6 #ifdef BLOWFISH
7 struct blowfish_key {
8 ulong32 S[4][256];
9 ulong32 K[18];
10 };
11 #endif
12
13 #ifdef RC5
14 struct rc5_key {
15 int rounds;
16 ulong32 K[50];
17 };
18 #endif
19
20 #ifdef RC6
21 struct rc6_key {
22 ulong32 K[44];
23 };
24 #endif
25
26 #ifdef SAFERP
27 struct saferp_key {
28 unsigned char K[33][16];
29 long rounds;
30 };
31 #endif
32
33 #ifdef RIJNDAEL
34 struct rijndael_key {
35 ulong32 eK[64], dK[64];
36 int Nr;
37 };
38 #endif
39
40 #ifdef XTEA
41 struct xtea_key {
42 unsigned long A[32], B[32];
43 };
44 #endif
45
46 #ifdef TWOFISH
47 #ifndef TWOFISH_SMALL
48 struct twofish_key {
49 ulong32 S[4][256], K[40];
50 };
51 #else
52 struct twofish_key {
53 ulong32 K[40];
54 unsigned char S[32], start;
55 };
56 #endif
57 #endif
58
59 #ifdef SAFER
60 #define SAFER_K64_DEFAULT_NOF_ROUNDS 6
61 #define SAFER_K128_DEFAULT_NOF_ROUNDS 10
62 #define SAFER_SK64_DEFAULT_NOF_ROUNDS 8
63 #define SAFER_SK128_DEFAULT_NOF_ROUNDS 10
64 #define SAFER_MAX_NOF_ROUNDS 13
65 #define SAFER_BLOCK_LEN 8
66 #define SAFER_KEY_LEN (1 + SAFER_BLOCK_LEN * (1 + 2 * SAFER_MAX_NOF_ROUNDS))
67 typedef unsigned char safer_block_t[SAFER_BLOCK_LEN];
68 typedef unsigned char safer_key_t[SAFER_KEY_LEN];
69 struct safer_key { safer_key_t key; };
70 #endif
71
72 #ifdef RC2
73 struct rc2_key { unsigned xkey[64]; };
74 #endif
75
76 #ifdef DES
77 struct des_key {
78 ulong32 ek[32], dk[32];
79 };
80
81 struct des3_key {
82 ulong32 ek[3][32], dk[3][32];
83 };
84 #endif
85
86 #ifdef CAST5
87 struct cast5_key {
88 ulong32 K[32], keylen;
89 };
90 #endif
91
92 #ifdef NOEKEON
93 struct noekeon_key {
94 ulong32 K[4], dK[4];
95 };
96 #endif
97
98 #ifdef SKIPJACK
99 struct skipjack_key {
100 unsigned char key[10];
101 };
102 #endif
103
104 typedef union Symmetric_key {
105 #ifdef DES
106 struct des_key des;
107 struct des3_key des3;
108 #endif
109 #ifdef RC2
110 struct rc2_key rc2;
111 #endif
112 #ifdef SAFER
113 struct safer_key safer;
114 #endif
115 #ifdef TWOFISH
116 struct twofish_key twofish;
117 #endif
118 #ifdef BLOWFISH
119 struct blowfish_key blowfish;
120 #endif
121 #ifdef RC5
122 struct rc5_key rc5;
123 #endif
124 #ifdef RC6
125 struct rc6_key rc6;
126 #endif
127 #ifdef SAFERP
128 struct saferp_key saferp;
129 #endif
130 #ifdef RIJNDAEL
131 struct rijndael_key rijndael;
132 #endif
133 #ifdef XTEA
134 struct xtea_key xtea;
135 #endif
136 #ifdef CAST5
137 struct cast5_key cast5;
138 #endif
139 #ifdef NOEKEON
140 struct noekeon_key noekeon;
141 #endif
142 #ifdef SKIPJACK
143 struct skipjack_key skipjack;
144 #endif
145 } symmetric_key;
146
147 /* A block cipher ECB structure */
148 typedef struct {
149 int cipher, blocklen;
150 symmetric_key key;
151 } symmetric_ECB;
152
153 /* A block cipher CFB structure */
154 typedef struct {
155 int cipher, blocklen, padlen;
156 unsigned char IV[MAXBLOCKSIZE], pad[MAXBLOCKSIZE];
157 symmetric_key key;
158 } symmetric_CFB;
159
160 /* A block cipher OFB structure */
161 typedef struct {
162 int cipher, blocklen, padlen;
163 unsigned char IV[MAXBLOCKSIZE];
164 symmetric_key key;
165 } symmetric_OFB;
166
167 /* A block cipher CBC structure */
168 typedef struct Symmetric_CBC {
169 int cipher, blocklen;
170 unsigned char IV[MAXBLOCKSIZE];
171 symmetric_key key;
172 } symmetric_CBC;
173
174 /* A block cipher CTR structure */
175 typedef struct Symmetric_CTR {
176 int cipher, blocklen, padlen, mode;
177 unsigned char ctr[MAXBLOCKSIZE], pad[MAXBLOCKSIZE];
178 symmetric_key key;
179 } symmetric_CTR;
180
181 /* cipher descriptor table, last entry has "name == NULL" to mark the end of table */
182 extern struct _cipher_descriptor {
183 char *name;
184 unsigned char ID;
185 int min_key_length, max_key_length, block_length, default_rounds;
186 int (*setup)(const unsigned char *key, int keylength, int num_rounds, symmetric_key *skey);
187 void (*ecb_encrypt)(const unsigned char *pt, unsigned char *ct, symmetric_key *key);
188 void (*ecb_decrypt)(const unsigned char *ct, unsigned char *pt, symmetric_key *key);
189 int (*test)(void);
190 int (*keysize)(int *desired_keysize);
191 } cipher_descriptor[];
192
193 #ifdef BLOWFISH
194 extern int blowfish_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
195 extern void blowfish_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key);
196 extern void blowfish_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *key);
197 extern int blowfish_test(void);
198 extern int blowfish_keysize(int *desired_keysize);
199 extern const struct _cipher_descriptor blowfish_desc;
200 #endif
201
202 #ifdef RC5
203 extern int rc5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
204 extern void rc5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key);
205 extern void rc5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *key);
206 extern int rc5_test(void);
207 extern int rc5_keysize(int *desired_keysize);
208 extern const struct _cipher_descriptor rc5_desc;
209 #endif
210
211 #ifdef RC6
212 extern int rc6_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
213 extern void rc6_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key);
214 extern void rc6_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *key);
215 extern int rc6_test(void);
216 extern int rc6_keysize(int *desired_keysize);
217 extern const struct _cipher_descriptor rc6_desc;
218 #endif
219
220 #ifdef RC2
221 extern int rc2_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
222 extern void rc2_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key);
223 extern void rc2_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *key);
224 extern int rc2_test(void);
225 extern int rc2_keysize(int *desired_keysize);
226 extern const struct _cipher_descriptor rc2_desc;
227 #endif
228
229 #ifdef SAFERP
230 extern int saferp_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
231 extern void saferp_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key);
232 extern void saferp_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *key);
233 extern int saferp_test(void);
234 extern int saferp_keysize(int *desired_keysize);
235 extern const struct _cipher_descriptor saferp_desc;
236 #endif
237
238 #ifdef SAFER
239 extern int safer_k64_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
240 extern int safer_sk64_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
241 extern int safer_k128_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
242 extern int safer_sk128_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
243 extern void safer_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key);
244 extern void safer_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *key);
245
246 extern int safer_k64_test(void);
247 extern int safer_sk64_test(void);
248 extern int safer_sk128_test(void);
249
250 extern int safer_64_keysize(int *desired_keysize);
251 extern int safer_128_keysize(int *desired_keysize);
252 extern const struct _cipher_descriptor safer_k64_desc, safer_k128_desc, safer_sk64_desc, safer_sk128_desc;
253 #endif
254
255 #ifdef RIJNDAEL
256
257 /* make aes an alias */
258 #define aes_setup rijndael_setup
259 #define aes_ecb_encrypt rijndael_ecb_encrypt
260 #define aes_ecb_decrypt rijndael_ecb_decrypt
261 #define aes_test rijndael_test
262 #define aes_keysize rijndael_keysize
263
264 extern int rijndael_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
265 extern void rijndael_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key);
266 extern void rijndael_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *key);
267 extern int rijndael_test(void);
268 extern int rijndael_keysize(int *desired_keysize);
269 extern const struct _cipher_descriptor rijndael_desc, aes_desc;
270 #endif
271
272 #ifdef XTEA
273 extern int xtea_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
274 extern void xtea_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key);
275 extern void xtea_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *key);
276 extern int xtea_test(void);
277 extern int xtea_keysize(int *desired_keysize);
278 extern const struct _cipher_descriptor xtea_desc;
279 #endif
280
281 #ifdef TWOFISH
282 extern int twofish_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
283 extern void twofish_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key);
284 extern void twofish_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *key);
285 extern int twofish_test(void);
286 extern int twofish_keysize(int *desired_keysize);
287 extern const struct _cipher_descriptor twofish_desc;
288 #endif
289
290 #ifdef DES
291 extern int des_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
292 extern void des_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key);
293 extern void des_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *key);
294 extern int des_test(void);
295 extern int des_keysize(int *desired_keysize);
296
297 extern int des3_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
298 extern void des3_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key);
299 extern void des3_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *key);
300 extern int des3_test(void);
301 extern int des3_keysize(int *desired_keysize);
302
303 extern const struct _cipher_descriptor des_desc, des3_desc;
304 #endif
305
306 #ifdef CAST5
307 extern int cast5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
308 extern void cast5_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key);
309 extern void cast5_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *key);
310 extern int cast5_test(void);
311 extern int cast5_keysize(int *desired_keysize);
312 extern const struct _cipher_descriptor cast5_desc;
313 #endif
314
315 #ifdef NOEKEON
316 extern int noekeon_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
317 extern void noekeon_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key);
318 extern void noekeon_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *key);
319 extern int noekeon_test(void);
320 extern int noekeon_keysize(int *desired_keysize);
321 extern const struct _cipher_descriptor noekeon_desc;
322 #endif
323
324 #ifdef SKIPJACK
325 extern int skipjack_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_key *skey);
326 extern void skipjack_ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_key *key);
327 extern void skipjack_ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_key *key);
328 extern int skipjack_test(void);
329 extern int skipjack_keysize(int *desired_keysize);
330 extern const struct _cipher_descriptor skipjack_desc;
331 #endif
332
333 #ifdef ECB
334 extern int ecb_start(int cipher, const unsigned char *key,
335 int keylen, int num_rounds, symmetric_ECB *ecb);
336 extern int ecb_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_ECB *ecb);
337 extern int ecb_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_ECB *ecb);
338 #endif
339
340 #ifdef CFB
341 extern int cfb_start(int cipher, const unsigned char *IV, const unsigned char *key,
342 int keylen, int num_rounds, symmetric_CFB *cfb);
343 extern int cfb_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_CFB *cfb);
344 extern int cfb_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_CFB *cfb);
345 #endif
346
347 #ifdef OFB
348 extern int ofb_start(int cipher, const unsigned char *IV, const unsigned char *key,
349 int keylen, int num_rounds, symmetric_OFB *ofb);
350 extern int ofb_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_OFB *ofb);
351 extern int ofb_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_OFB *ofb);
352 #endif
353
354 #ifdef CBC
355 extern int cbc_start(int cipher, const unsigned char *IV, const unsigned char *key,
356 int keylen, int num_rounds, symmetric_CBC *cbc);
357 extern int cbc_encrypt(const unsigned char *pt, unsigned char *ct, symmetric_CBC *cbc);
358 extern int cbc_decrypt(const unsigned char *ct, unsigned char *pt, symmetric_CBC *cbc);
359 #endif
360
361 #ifdef CTR
362 extern int ctr_start(int cipher, const unsigned char *IV, const unsigned char *key,
363 int keylen, int num_rounds, symmetric_CTR *ctr);
364 extern int ctr_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_CTR *ctr);
365 extern int ctr_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_CTR *ctr);
366 #endif
367
368
369
370 extern int find_cipher(const char *name);
371 extern int find_cipher_any(const char *name, int blocklen, int keylen);
372 extern int find_cipher_id(unsigned char ID);
373
374 extern int register_cipher(const struct _cipher_descriptor *cipher);
375 extern int unregister_cipher(const struct _cipher_descriptor *cipher);
376
377 extern int cipher_is_valid(int idx);
378