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comparison libtomcrypt/src/headers/tomcrypt_mac.h @ 285:1b9e69c058d2

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propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3) to branch 'au.asn.ucc.matt.dropbear' (head fdf4a7a3b97ae5046139915de7e40399cceb2c01)
author Matt Johnston <matt@ucc.asn.au>
date Wed, 08 Mar 2006 13:23:58 +0000
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children 0cbe8f6dbf9e
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281:997e6f7dc01e 285:1b9e69c058d2
1 #ifdef HMAC
2 typedef struct Hmac_state {
3 hash_state md;
4 int hash;
5 hash_state hashstate;
6 unsigned char *key;
7 } hmac_state;
8
9 int hmac_init(hmac_state *hmac, int hash, const unsigned char *key, unsigned long keylen);
10 int hmac_process(hmac_state *hmac, const unsigned char *in, unsigned long inlen);
11 int hmac_done(hmac_state *hmac, unsigned char *out, unsigned long *outlen);
12 int hmac_test(void);
13 int hmac_memory(int hash,
14 const unsigned char *key, unsigned long keylen,
15 const unsigned char *in, unsigned long inlen,
16 unsigned char *out, unsigned long *outlen);
17 int hmac_memory_multi(int hash,
18 const unsigned char *key, unsigned long keylen,
19 unsigned char *out, unsigned long *outlen,
20 const unsigned char *in, unsigned long inlen, ...);
21 int hmac_file(int hash, const char *fname, const unsigned char *key,
22 unsigned long keylen,
23 unsigned char *dst, unsigned long *dstlen);
24 #endif
25
26 #ifdef OMAC
27
28 typedef struct {
29 int cipher_idx,
30 buflen,
31 blklen;
32 unsigned char block[MAXBLOCKSIZE],
33 prev[MAXBLOCKSIZE],
34 Lu[2][MAXBLOCKSIZE];
35 symmetric_key key;
36 } omac_state;
37
38 int omac_init(omac_state *omac, int cipher, const unsigned char *key, unsigned long keylen);
39 int omac_process(omac_state *omac, const unsigned char *in, unsigned long inlen);
40 int omac_done(omac_state *omac, unsigned char *out, unsigned long *outlen);
41 int omac_memory(int cipher,
42 const unsigned char *key, unsigned long keylen,
43 const unsigned char *in, unsigned long inlen,
44 unsigned char *out, unsigned long *outlen);
45 int omac_memory_multi(int cipher,
46 const unsigned char *key, unsigned long keylen,
47 unsigned char *out, unsigned long *outlen,
48 const unsigned char *in, unsigned long inlen, ...);
49 int omac_file(int cipher,
50 const unsigned char *key, unsigned long keylen,
51 const char *filename,
52 unsigned char *out, unsigned long *outlen);
53 int omac_test(void);
54 #endif /* OMAC */
55
56 #ifdef PMAC
57
58 typedef struct {
59 unsigned char Ls[32][MAXBLOCKSIZE], /* L shifted by i bits to the left */
60 Li[MAXBLOCKSIZE], /* value of Li [current value, we calc from previous recall] */
61 Lr[MAXBLOCKSIZE], /* L * x^-1 */
62 block[MAXBLOCKSIZE], /* currently accumulated block */
63 checksum[MAXBLOCKSIZE]; /* current checksum */
64
65 symmetric_key key; /* scheduled key for cipher */
66 unsigned long block_index; /* index # for current block */
67 int cipher_idx, /* cipher idx */
68 block_len, /* length of block */
69 buflen; /* number of bytes in the buffer */
70 } pmac_state;
71
72 int pmac_init(pmac_state *pmac, int cipher, const unsigned char *key, unsigned long keylen);
73 int pmac_process(pmac_state *pmac, const unsigned char *in, unsigned long inlen);
74 int pmac_done(pmac_state *pmac, unsigned char *out, unsigned long *outlen);
75
76 int pmac_memory(int cipher,
77 const unsigned char *key, unsigned long keylen,
78 const unsigned char *msg, unsigned long msglen,
79 unsigned char *out, unsigned long *outlen);
80
81 int pmac_memory_multi(int cipher,
82 const unsigned char *key, unsigned long keylen,
83 unsigned char *out, unsigned long *outlen,
84 const unsigned char *in, unsigned long inlen, ...);
85
86 int pmac_file(int cipher,
87 const unsigned char *key, unsigned long keylen,
88 const char *filename,
89 unsigned char *out, unsigned long *outlen);
90
91 int pmac_test(void);
92
93 /* internal functions */
94 int pmac_ntz(unsigned long x);
95 void pmac_shift_xor(pmac_state *pmac);
96
97 #endif /* PMAC */
98
99 #ifdef EAX_MODE
100
101 #if !(defined(OMAC) && defined(CTR))
102 #error EAX_MODE requires OMAC and CTR
103 #endif
104
105 typedef struct {
106 unsigned char N[MAXBLOCKSIZE];
107 symmetric_CTR ctr;
108 omac_state headeromac, ctomac;
109 } eax_state;
110
111 int eax_init(eax_state *eax, int cipher, const unsigned char *key, unsigned long keylen,
112 const unsigned char *nonce, unsigned long noncelen,
113 const unsigned char *header, unsigned long headerlen);
114
115 int eax_encrypt(eax_state *eax, const unsigned char *pt, unsigned char *ct, unsigned long length);
116 int eax_decrypt(eax_state *eax, const unsigned char *ct, unsigned char *pt, unsigned long length);
117 int eax_addheader(eax_state *eax, const unsigned char *header, unsigned long length);
118 int eax_done(eax_state *eax, unsigned char *tag, unsigned long *taglen);
119
120 int eax_encrypt_authenticate_memory(int cipher,
121 const unsigned char *key, unsigned long keylen,
122 const unsigned char *nonce, unsigned long noncelen,
123 const unsigned char *header, unsigned long headerlen,
124 const unsigned char *pt, unsigned long ptlen,
125 unsigned char *ct,
126 unsigned char *tag, unsigned long *taglen);
127
128 int eax_decrypt_verify_memory(int cipher,
129 const unsigned char *key, unsigned long keylen,
130 const unsigned char *nonce, unsigned long noncelen,
131 const unsigned char *header, unsigned long headerlen,
132 const unsigned char *ct, unsigned long ctlen,
133 unsigned char *pt,
134 unsigned char *tag, unsigned long taglen,
135 int *stat);
136
137 int eax_test(void);
138 #endif /* EAX MODE */
139
140 #ifdef OCB_MODE
141 typedef struct {
142 unsigned char L[MAXBLOCKSIZE], /* L value */
143 Ls[32][MAXBLOCKSIZE], /* L shifted by i bits to the left */
144 Li[MAXBLOCKSIZE], /* value of Li [current value, we calc from previous recall] */
145 Lr[MAXBLOCKSIZE], /* L * x^-1 */
146 R[MAXBLOCKSIZE], /* R value */
147 checksum[MAXBLOCKSIZE]; /* current checksum */
148
149 symmetric_key key; /* scheduled key for cipher */
150 unsigned long block_index; /* index # for current block */
151 int cipher, /* cipher idx */
152 block_len; /* length of block */
153 } ocb_state;
154
155 int ocb_init(ocb_state *ocb, int cipher,
156 const unsigned char *key, unsigned long keylen, const unsigned char *nonce);
157
158 int ocb_encrypt(ocb_state *ocb, const unsigned char *pt, unsigned char *ct);
159 int ocb_decrypt(ocb_state *ocb, const unsigned char *ct, unsigned char *pt);
160
161 int ocb_done_encrypt(ocb_state *ocb,
162 const unsigned char *pt, unsigned long ptlen,
163 unsigned char *ct,
164 unsigned char *tag, unsigned long *taglen);
165
166 int ocb_done_decrypt(ocb_state *ocb,
167 const unsigned char *ct, unsigned long ctlen,
168 unsigned char *pt,
169 const unsigned char *tag, unsigned long taglen, int *stat);
170
171 int ocb_encrypt_authenticate_memory(int cipher,
172 const unsigned char *key, unsigned long keylen,
173 const unsigned char *nonce,
174 const unsigned char *pt, unsigned long ptlen,
175 unsigned char *ct,
176 unsigned char *tag, unsigned long *taglen);
177
178 int ocb_decrypt_verify_memory(int cipher,
179 const unsigned char *key, unsigned long keylen,
180 const unsigned char *nonce,
181 const unsigned char *ct, unsigned long ctlen,
182 unsigned char *pt,
183 const unsigned char *tag, unsigned long taglen,
184 int *stat);
185
186 int ocb_test(void);
187
188 /* internal functions */
189 void ocb_shift_xor(ocb_state *ocb, unsigned char *Z);
190 int ocb_ntz(unsigned long x);
191 int s_ocb_done(ocb_state *ocb, const unsigned char *pt, unsigned long ptlen,
192 unsigned char *ct, unsigned char *tag, unsigned long *taglen, int mode);
193
194 #endif /* OCB_MODE */
195
196 #ifdef CCM_MODE
197
198 #define CCM_ENCRYPT 0
199 #define CCM_DECRYPT 1
200
201 int ccm_memory(int cipher,
202 const unsigned char *key, unsigned long keylen,
203 const unsigned char *nonce, unsigned long noncelen,
204 const unsigned char *header, unsigned long headerlen,
205 unsigned char *pt, unsigned long ptlen,
206 unsigned char *ct,
207 unsigned char *tag, unsigned long *taglen,
208 int direction);
209
210 int ccm_test(void);
211
212 #endif /* CCM_MODE */
213
214 #ifdef GCM_MODE
215
216 #define GCM_ENCRYPT 0
217 #define GCM_DECRYPT 1
218
219 #define GCM_MODE_IV 0
220 #define GCM_MODE_AAD 1
221 #define GCM_MODE_TEXT 2
222
223 typedef struct {
224 symmetric_key K;
225 unsigned char H[16], /* multiplier */
226 X[16], /* accumulator */
227 Y[16], /* counter */
228 Y_0[16], /* initial counter */
229 buf[16]; /* buffer for stuff */
230
231 int cipher, /* which cipher */
232 ivmode, /* Which mode is the IV in? */
233 mode, /* mode the GCM code is in */
234 buflen; /* length of data in buf */
235
236 ulong64 totlen, /* 64-bit counter used for IV and AAD */
237 pttotlen; /* 64-bit counter for the PT */
238
239 #ifdef GCM_TABLES
240 unsigned char PC[16][256][16]; /* 16 tables of 8x128 */
241 #endif
242
243 } gcm_state;
244
245 void gcm_gf_mult(const unsigned char *a, const unsigned char *b, unsigned char *c);
246 void gcm_mult_h(gcm_state *gcm, unsigned char *I);
247
248 int gcm_init(gcm_state *gcm, int cipher,
249 const unsigned char *key, int keylen);
250
251 int gcm_reset(gcm_state *gcm);
252
253 int gcm_add_iv(gcm_state *gcm,
254 const unsigned char *IV, unsigned long IVlen);
255
256 int gcm_add_aad(gcm_state *gcm,
257 const unsigned char *adata, unsigned long adatalen);
258
259 int gcm_process(gcm_state *gcm,
260 unsigned char *pt, unsigned long ptlen,
261 unsigned char *ct,
262 int direction);
263
264 int gcm_done(gcm_state *gcm,
265 unsigned char *tag, unsigned long *taglen);
266
267 int gcm_memory( int cipher,
268 const unsigned char *key, unsigned long keylen,
269 const unsigned char *IV, unsigned long IVlen,
270 const unsigned char *adata, unsigned long adatalen,
271 unsigned char *pt, unsigned long ptlen,
272 unsigned char *ct,
273 unsigned char *tag, unsigned long *taglen,
274 int direction);
275 int gcm_test(void);
276
277 #endif /* GCM_MODE */
278
279 #ifdef PELICAN
280
281 typedef struct pelican_state
282 {
283 symmetric_key K;
284 unsigned char state[16];
285 int buflen;
286 } pelican_state;
287
288 int pelican_init(pelican_state *pelmac, const unsigned char *key, unsigned long keylen);
289 int pelican_process(pelican_state *pelmac, const unsigned char *in, unsigned long inlen);
290 int pelican_done(pelican_state *pelmac, unsigned char *out);
291 int pelican_test(void);
292
293 int pelican_memory(const unsigned char *key, unsigned long keylen,
294 const unsigned char *in, unsigned long inlen,
295 unsigned char *out);
296
297 #endif
298
299 /* $Source: /cvs/libtom/libtomcrypt/src/headers/tomcrypt_mac.h,v $ */
300 /* $Revision: 1.7 $ */
301 /* $Date: 2005/05/05 14:35:58 $ */