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evp_locl.h
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1 /* evp_locl.h */
2 /* Written by Dr Stephen N Henson ([email protected]) for the OpenSSL
3  * project 2000.
4  */
5 /* ====================================================================
6  * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  * notice, this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  * notice, this list of conditions and the following disclaimer in
17  * the documentation and/or other materials provided with the
18  * distribution.
19  *
20  * 3. All advertising materials mentioning features or use of this
21  * software must display the following acknowledgment:
22  * "This product includes software developed by the OpenSSL Project
23  * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24  *
25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26  * endorse or promote products derived from this software without
27  * prior written permission. For written permission, please contact
28  * [email protected].
29  *
30  * 5. Products derived from this software may not be called "OpenSSL"
31  * nor may "OpenSSL" appear in their names without prior written
32  * permission of the OpenSSL Project.
33  *
34  * 6. Redistributions of any form whatsoever must retain the following
35  * acknowledgment:
36  * "This product includes software developed by the OpenSSL Project
37  * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38  *
39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50  * OF THE POSSIBILITY OF SUCH DAMAGE.
51  * ====================================================================
52  *
53  * This product includes cryptographic software written by Eric Young
54  * ([email protected]). This product includes software written by Tim
55  * Hudson ([email protected]).
56  *
57  */
58 
59 /* Macros to code block cipher wrappers */
60 
61 /* Wrapper functions for each cipher mode */
62 
63 #define BLOCK_CIPHER_ecb_loop() \
64  size_t i, bl; \
65  bl = ctx->cipher->block_size;\
66  if(inl < bl) return 1;\
67  inl -= bl; \
68  for(i=0; i <= inl; i+=bl)
69 
70 #define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
71 static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
72 {\
73  BLOCK_CIPHER_ecb_loop() \
74  cprefix##_ecb_encrypt(in + i, out + i, &((kstruct *)ctx->cipher_data)->ksched, ctx->encrypt);\
75  return 1;\
76 }
77 
78 #define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2))
79 
80 #define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \
81 static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
82 {\
83  while(inl>=EVP_MAXCHUNK)\
84  {\
85  cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num);\
86  inl-=EVP_MAXCHUNK;\
87  in +=EVP_MAXCHUNK;\
88  out+=EVP_MAXCHUNK;\
89  }\
90  if (inl)\
91  cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num);\
92  return 1;\
93 }
94 
95 #define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
96 static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
97 {\
98  while(inl>=EVP_MAXCHUNK) \
99  {\
100  cprefix##_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, ctx->encrypt);\
101  inl-=EVP_MAXCHUNK;\
102  in +=EVP_MAXCHUNK;\
103  out+=EVP_MAXCHUNK;\
104  }\
105  if (inl)\
106  cprefix##_cbc_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, ctx->encrypt);\
107  return 1;\
108 }
109 
110 #define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
111 static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
112 {\
113  size_t chunk=EVP_MAXCHUNK;\
114  if (cbits==1) chunk>>=3;\
115  if (inl<chunk) chunk=inl;\
116  while(inl && inl>=chunk)\
117  {\
118  cprefix##_cfb##cbits##_encrypt(in, out, (long)((cbits==1) && !(ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) ?inl*8:inl), &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num, ctx->encrypt);\
119  inl-=chunk;\
120  in +=chunk;\
121  out+=chunk;\
122  if(inl<chunk) chunk=inl;\
123  }\
124  return 1;\
125 }
126 
127 #define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
128  BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
129  BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
130  BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
131  BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched)
132 
133 #define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \
134  key_len, iv_len, flags, init_key, cleanup, \
135  set_asn1, get_asn1, ctrl) \
136 static const EVP_CIPHER cname##_##mode = { \
137  nid##_##nmode, block_size, key_len, iv_len, \
138  flags | EVP_CIPH_##MODE##_MODE, \
139  init_key, \
140  cname##_##mode##_cipher, \
141  cleanup, \
142  sizeof(kstruct), \
143  set_asn1, get_asn1,\
144  ctrl, \
145  NULL \
146 }; \
147 const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; }
148 
149 #define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \
150  iv_len, flags, init_key, cleanup, set_asn1, \
151  get_asn1, ctrl) \
152 BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \
153  iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
154 
155 #define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \
156  iv_len, cbits, flags, init_key, cleanup, \
157  set_asn1, get_asn1, ctrl) \
158 BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \
159  key_len, iv_len, flags, init_key, cleanup, set_asn1, \
160  get_asn1, ctrl)
161 
162 #define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \
163  iv_len, cbits, flags, init_key, cleanup, \
164  set_asn1, get_asn1, ctrl) \
165 BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \
166  key_len, iv_len, flags, init_key, cleanup, set_asn1, \
167  get_asn1, ctrl)
168 
169 #define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \
170  flags, init_key, cleanup, set_asn1, \
171  get_asn1, ctrl) \
172 BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \
173  0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
174 
175 #define BLOCK_CIPHER_defs(cname, kstruct, \
176  nid, block_size, key_len, iv_len, cbits, flags, \
177  init_key, cleanup, set_asn1, get_asn1, ctrl) \
178 BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
179  init_key, cleanup, set_asn1, get_asn1, ctrl) \
180 BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \
181  flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
182 BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \
183  flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
184 BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \
185  init_key, cleanup, set_asn1, get_asn1, ctrl)
186 
187 
188 /*
189 #define BLOCK_CIPHER_defs(cname, kstruct, \
190  nid, block_size, key_len, iv_len, flags,\
191  init_key, cleanup, set_asn1, get_asn1, ctrl)\
192 static const EVP_CIPHER cname##_cbc = {\
193  nid##_cbc, block_size, key_len, iv_len, \
194  flags | EVP_CIPH_CBC_MODE,\
195  init_key,\
196  cname##_cbc_cipher,\
197  cleanup,\
198  sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
199  sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
200  set_asn1, get_asn1,\
201  ctrl, \
202  NULL \
203 };\
204 const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\
205 static const EVP_CIPHER cname##_cfb = {\
206  nid##_cfb64, 1, key_len, iv_len, \
207  flags | EVP_CIPH_CFB_MODE,\
208  init_key,\
209  cname##_cfb_cipher,\
210  cleanup,\
211  sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
212  sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
213  set_asn1, get_asn1,\
214  ctrl,\
215  NULL \
216 };\
217 const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\
218 static const EVP_CIPHER cname##_ofb = {\
219  nid##_ofb64, 1, key_len, iv_len, \
220  flags | EVP_CIPH_OFB_MODE,\
221  init_key,\
222  cname##_ofb_cipher,\
223  cleanup,\
224  sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
225  sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
226  set_asn1, get_asn1,\
227  ctrl,\
228  NULL \
229 };\
230 const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\
231 static const EVP_CIPHER cname##_ecb = {\
232  nid##_ecb, block_size, key_len, iv_len, \
233  flags | EVP_CIPH_ECB_MODE,\
234  init_key,\
235  cname##_ecb_cipher,\
236  cleanup,\
237  sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
238  sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
239  set_asn1, get_asn1,\
240  ctrl,\
241  NULL \
242 };\
243 const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; }
244 */
245 
246 #define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \
247  block_size, key_len, iv_len, cbits, \
248  flags, init_key, \
249  cleanup, set_asn1, get_asn1, ctrl) \
250  BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
251  BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \
252  cbits, flags, init_key, cleanup, set_asn1, \
253  get_asn1, ctrl)
254 
255 #define EVP_C_DATA(kstruct, ctx) ((kstruct *)(ctx)->cipher_data)
256 
257 #define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len) \
258  BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \
259  BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \
260  NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \
261  0, cipher##_init_key, NULL, \
262  EVP_CIPHER_set_asn1_iv, \
263  EVP_CIPHER_get_asn1_iv, \
264  NULL)
265 
266 struct evp_pkey_ctx_st
267  {
268  /* Method associated with this operation */
269  const EVP_PKEY_METHOD *pmeth;
270  /* Engine that implements this method or NULL if builtin */
271  ENGINE *engine;
272  /* Key: may be NULL */
273  EVP_PKEY *pkey;
274  /* Peer key for key agreement, may be NULL */
275  EVP_PKEY *peerkey;
276  /* Actual operation */
277  int operation;
278  /* Algorithm specific data */
279  void *data;
280  /* Application specific data */
281  void *app_data;
282  /* Keygen callback */
283  EVP_PKEY_gen_cb *pkey_gencb;
284  /* implementation specific keygen data */
285  int *keygen_info;
286  int keygen_info_count;
287  } /* EVP_PKEY_CTX */;
288 
289 #define EVP_PKEY_FLAG_DYNAMIC 1
290 
291 struct evp_pkey_method_st
292  {
293  int pkey_id;
294  int flags;
295 
296  int (*init)(EVP_PKEY_CTX *ctx);
297  int (*copy)(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src);
298  void (*cleanup)(EVP_PKEY_CTX *ctx);
299 
300  int (*paramgen_init)(EVP_PKEY_CTX *ctx);
301  int (*paramgen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
302 
303  int (*keygen_init)(EVP_PKEY_CTX *ctx);
304  int (*keygen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
305 
306  int (*sign_init)(EVP_PKEY_CTX *ctx);
307  int (*sign)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
308  const unsigned char *tbs, size_t tbslen);
309 
310  int (*verify_init)(EVP_PKEY_CTX *ctx);
311  int (*verify)(EVP_PKEY_CTX *ctx,
312  const unsigned char *sig, size_t siglen,
313  const unsigned char *tbs, size_t tbslen);
314 
315  int (*verify_recover_init)(EVP_PKEY_CTX *ctx);
316  int (*verify_recover)(EVP_PKEY_CTX *ctx,
317  unsigned char *rout, size_t *routlen,
318  const unsigned char *sig, size_t siglen);
319 
320  int (*signctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
321  int (*signctx)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
322  EVP_MD_CTX *mctx);
323 
324  int (*verifyctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
325  int (*verifyctx)(EVP_PKEY_CTX *ctx, const unsigned char *sig,int siglen,
326  EVP_MD_CTX *mctx);
327 
328  int (*encrypt_init)(EVP_PKEY_CTX *ctx);
329  int (*encrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
330  const unsigned char *in, size_t inlen);
331 
332  int (*decrypt_init)(EVP_PKEY_CTX *ctx);
333  int (*decrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
334  const unsigned char *in, size_t inlen);
335 
336  int (*derive_init)(EVP_PKEY_CTX *ctx);
337  int (*derive)(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
338 
339  int (*ctrl)(EVP_PKEY_CTX *ctx, int type, int p1, void *p2);
340  int (*ctrl_str)(EVP_PKEY_CTX *ctx, const char *type, const char *value);
341 
342 
343  } /* EVP_PKEY_METHOD */;
344 
345 void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx);
346 
347 int PKCS5_v2_PBKDF2_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
348  ASN1_TYPE *param,
349  const EVP_CIPHER *c, const EVP_MD *md, int en_de);
350 
351 #ifdef OPENSSL_FIPS
352 
353 #ifdef OPENSSL_DOING_MAKEDEPEND
354 #undef SHA1_Init
355 #undef SHA1_Update
356 #undef SHA224_Init
357 #undef SHA256_Init
358 #undef SHA384_Init
359 #undef SHA512_Init
360 #undef DES_set_key_unchecked
361 #endif
362 
363 #define RIPEMD160_Init private_RIPEMD160_Init
364 #define WHIRLPOOL_Init private_WHIRLPOOL_Init
365 #define MD5_Init private_MD5_Init
366 #define MD4_Init private_MD4_Init
367 #define MD2_Init private_MD2_Init
368 #define MDC2_Init private_MDC2_Init
369 #define SHA_Init private_SHA_Init
370 #define SHA1_Init private_SHA1_Init
371 #define SHA224_Init private_SHA224_Init
372 #define SHA256_Init private_SHA256_Init
373 #define SHA384_Init private_SHA384_Init
374 #define SHA512_Init private_SHA512_Init
375 
376 #define BF_set_key private_BF_set_key
377 #define CAST_set_key private_CAST_set_key
378 #define idea_set_encrypt_key private_idea_set_encrypt_key
379 #define SEED_set_key private_SEED_set_key
380 #define RC2_set_key private_RC2_set_key
381 #define RC4_set_key private_RC4_set_key
382 #define DES_set_key_unchecked private_DES_set_key_unchecked
383 #define Camellia_set_key private_Camellia_set_key
384 
385 #endif
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