2 * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 struct evp_pkey_ctx_st {
11 /* Method associated with this operation */
12 const EVP_PKEY_METHOD *pmeth;
13 /* Engine that implements this method or NULL if builtin */
15 /* Key: may be NULL */
17 /* Peer key for key agreement, may be NULL */
19 /* Actual operation */
21 /* Algorithm specific data */
23 /* Application specific data */
26 EVP_PKEY_gen_cb *pkey_gencb;
27 /* implementation specific keygen data */
29 int keygen_info_count;
30 } /* EVP_PKEY_CTX */ ;
32 #define EVP_PKEY_FLAG_DYNAMIC 1
34 struct evp_pkey_method_st {
37 int (*init) (EVP_PKEY_CTX *ctx);
38 int (*copy) (EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src);
39 void (*cleanup) (EVP_PKEY_CTX *ctx);
40 int (*paramgen_init) (EVP_PKEY_CTX *ctx);
41 int (*paramgen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
42 int (*keygen_init) (EVP_PKEY_CTX *ctx);
43 int (*keygen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
44 int (*sign_init) (EVP_PKEY_CTX *ctx);
45 int (*sign) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
46 const unsigned char *tbs, size_t tbslen);
47 int (*verify_init) (EVP_PKEY_CTX *ctx);
48 int (*verify) (EVP_PKEY_CTX *ctx,
49 const unsigned char *sig, size_t siglen,
50 const unsigned char *tbs, size_t tbslen);
51 int (*verify_recover_init) (EVP_PKEY_CTX *ctx);
52 int (*verify_recover) (EVP_PKEY_CTX *ctx,
53 unsigned char *rout, size_t *routlen,
54 const unsigned char *sig, size_t siglen);
55 int (*signctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
56 int (*signctx) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
58 int (*verifyctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
59 int (*verifyctx) (EVP_PKEY_CTX *ctx, const unsigned char *sig, int siglen,
61 int (*encrypt_init) (EVP_PKEY_CTX *ctx);
62 int (*encrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
63 const unsigned char *in, size_t inlen);
64 int (*decrypt_init) (EVP_PKEY_CTX *ctx);
65 int (*decrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
66 const unsigned char *in, size_t inlen);
67 int (*derive_init) (EVP_PKEY_CTX *ctx);
68 int (*derive) (EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
69 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, void *p2);
70 int (*ctrl_str) (EVP_PKEY_CTX *ctx, const char *type, const char *value);
71 } /* EVP_PKEY_METHOD */ ;
73 DEFINE_STACK_OF_CONST(EVP_PKEY_METHOD)
75 void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx);
77 extern const EVP_PKEY_METHOD cmac_pkey_meth;
78 extern const EVP_PKEY_METHOD dh_pkey_meth;
79 extern const EVP_PKEY_METHOD dhx_pkey_meth;
80 extern const EVP_PKEY_METHOD dsa_pkey_meth;
81 extern const EVP_PKEY_METHOD ec_pkey_meth;
82 extern const EVP_PKEY_METHOD hmac_pkey_meth;
83 extern const EVP_PKEY_METHOD rsa_pkey_meth;
84 extern const EVP_PKEY_METHOD tls1_prf_pkey_meth;
85 extern const EVP_PKEY_METHOD hkdf_pkey_meth;
92 int (*init) (EVP_MD_CTX *ctx);
93 int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count);
94 int (*final) (EVP_MD_CTX *ctx, unsigned char *md);
95 int (*copy) (EVP_MD_CTX *to, const EVP_MD_CTX *from);
96 int (*cleanup) (EVP_MD_CTX *ctx);
98 int ctx_size; /* how big does the ctx->md_data need to be */
99 /* control function */
100 int (*md_ctrl) (EVP_MD_CTX *ctx, int cmd, int p1, void *p2);
103 struct evp_cipher_st {
106 /* Default value for variable length ciphers */
112 int (*init) (EVP_CIPHER_CTX *ctx, const unsigned char *key,
113 const unsigned char *iv, int enc);
114 /* encrypt/decrypt data */
115 int (*do_cipher) (EVP_CIPHER_CTX *ctx, unsigned char *out,
116 const unsigned char *in, size_t inl);
118 int (*cleanup) (EVP_CIPHER_CTX *);
119 /* how big ctx->cipher_data needs to be */
121 /* Populate a ASN1_TYPE with parameters */
122 int (*set_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
123 /* Get parameters from a ASN1_TYPE */
124 int (*get_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
125 /* Miscellaneous operations */
126 int (*ctrl) (EVP_CIPHER_CTX *, int type, int arg, void *ptr);
127 /* Application data */
131 /* Macros to code block cipher wrappers */
133 /* Wrapper functions for each cipher mode */
135 #define EVP_C_DATA(kstruct, ctx) \
136 ((kstruct *)EVP_CIPHER_CTX_get_cipher_data(ctx))
138 #define BLOCK_CIPHER_ecb_loop() \
140 bl = EVP_CIPHER_CTX_cipher(ctx)->block_size; \
141 if(inl < bl) return 1;\
143 for(i=0; i <= inl; i+=bl)
145 #define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
146 static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
148 BLOCK_CIPHER_ecb_loop() \
149 cprefix##_ecb_encrypt(in + i, out + i, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_encrypting(ctx)); \
153 #define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2))
155 #define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \
156 static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
158 while(inl>=EVP_MAXCHUNK) {\
159 int num = EVP_CIPHER_CTX_num(ctx);\
160 cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
161 EVP_CIPHER_CTX_set_num(ctx, num);\
167 int num = EVP_CIPHER_CTX_num(ctx);\
168 cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
169 EVP_CIPHER_CTX_set_num(ctx, num);\
174 #define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
175 static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
177 while(inl>=EVP_MAXCHUNK) \
179 cprefix##_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));\
185 cprefix##_cbc_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));\
189 #define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
190 static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
192 size_t chunk=EVP_MAXCHUNK;\
193 if (cbits==1) chunk>>=3;\
194 if (inl<chunk) chunk=inl;\
195 while(inl && inl>=chunk)\
197 int num = EVP_CIPHER_CTX_num(ctx);\
198 cprefix##_cfb##cbits##_encrypt(in, out, (long)((cbits==1) && !EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS) ?inl*8:inl), &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx)); \
199 EVP_CIPHER_CTX_set_num(ctx, num);\
203 if(inl<chunk) chunk=inl;\
208 #define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
209 BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
210 BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
211 BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
212 BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched)
214 #define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \
215 key_len, iv_len, flags, init_key, cleanup, \
216 set_asn1, get_asn1, ctrl) \
217 static const EVP_CIPHER cname##_##mode = { \
218 nid##_##nmode, block_size, key_len, iv_len, \
219 flags | EVP_CIPH_##MODE##_MODE, \
221 cname##_##mode##_cipher, \
228 const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; }
230 #define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \
231 iv_len, flags, init_key, cleanup, set_asn1, \
233 BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \
234 iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
236 #define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \
237 iv_len, cbits, flags, init_key, cleanup, \
238 set_asn1, get_asn1, ctrl) \
239 BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \
240 key_len, iv_len, flags, init_key, cleanup, set_asn1, \
243 #define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \
244 iv_len, cbits, flags, init_key, cleanup, \
245 set_asn1, get_asn1, ctrl) \
246 BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \
247 key_len, iv_len, flags, init_key, cleanup, set_asn1, \
250 #define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \
251 flags, init_key, cleanup, set_asn1, \
253 BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \
254 0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
256 #define BLOCK_CIPHER_defs(cname, kstruct, \
257 nid, block_size, key_len, iv_len, cbits, flags, \
258 init_key, cleanup, set_asn1, get_asn1, ctrl) \
259 BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
260 init_key, cleanup, set_asn1, get_asn1, ctrl) \
261 BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \
262 flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
263 BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \
264 flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
265 BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \
266 init_key, cleanup, set_asn1, get_asn1, ctrl)
269 #define BLOCK_CIPHER_defs(cname, kstruct, \
270 nid, block_size, key_len, iv_len, flags,\
271 init_key, cleanup, set_asn1, get_asn1, ctrl)\
272 static const EVP_CIPHER cname##_cbc = {\
273 nid##_cbc, block_size, key_len, iv_len, \
274 flags | EVP_CIPH_CBC_MODE,\
278 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
279 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
284 const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\
285 static const EVP_CIPHER cname##_cfb = {\
286 nid##_cfb64, 1, key_len, iv_len, \
287 flags | EVP_CIPH_CFB_MODE,\
291 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
292 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
297 const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\
298 static const EVP_CIPHER cname##_ofb = {\
299 nid##_ofb64, 1, key_len, iv_len, \
300 flags | EVP_CIPH_OFB_MODE,\
304 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
305 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
310 const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\
311 static const EVP_CIPHER cname##_ecb = {\
312 nid##_ecb, block_size, key_len, iv_len, \
313 flags | EVP_CIPH_ECB_MODE,\
317 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
318 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
323 const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; }
326 #define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \
327 block_size, key_len, iv_len, cbits, \
329 cleanup, set_asn1, get_asn1, ctrl) \
330 BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
331 BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \
332 cbits, flags, init_key, cleanup, set_asn1, \
335 #define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len,fl) \
336 BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \
337 BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \
338 NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \
339 (fl)|EVP_CIPH_FLAG_DEFAULT_ASN1, \
340 cipher##_init_key, NULL, NULL, NULL, NULL)
344 * Type needs to be a bit field Sub-type needs to be for variations on the
345 * method, as in, can it do arbitrary encryption....
351 const EVP_PKEY_ASN1_METHOD *ameth;
355 # ifndef OPENSSL_NO_RSA
356 struct rsa_st *rsa; /* RSA */
358 # ifndef OPENSSL_NO_DSA
359 struct dsa_st *dsa; /* DSA */
361 # ifndef OPENSSL_NO_DH
362 struct dh_st *dh; /* DH */
364 # ifndef OPENSSL_NO_EC
365 struct ec_key_st *ec; /* ECC */
369 STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
374 void openssl_add_all_ciphers_int(void);
375 void openssl_add_all_digests_int(void);
376 void evp_cleanup_int(void);