xref: /openbsd-src/lib/libcrypto/evp/evp.h (revision f1dd7b858388b4a23f4f67a4957ec5ff656ebbe8)
1 /* $OpenBSD: evp.h,v 1.83 2021/05/10 17:00:32 tb Exp $ */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young (eay@cryptsoft.com).
7  * The implementation was written so as to conform with Netscapes SSL.
8  *
9  * This library is free for commercial and non-commercial use as long as
10  * the following conditions are aheared to.  The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15  *
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  *
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  *    notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  *    notice, this list of conditions and the following disclaimer in the
30  *    documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  *    must display the following acknowledgement:
33  *    "This product includes cryptographic software written by
34  *     Eric Young (eay@cryptsoft.com)"
35  *    The word 'cryptographic' can be left out if the rouines from the library
36  *    being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from
38  *    the apps directory (application code) you must include an acknowledgement:
39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40  *
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  *
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58 
59 #ifndef HEADER_ENVELOPE_H
60 #define HEADER_ENVELOPE_H
61 
62 #include <openssl/opensslconf.h>
63 
64 #include <openssl/ossl_typ.h>
65 
66 #ifndef OPENSSL_NO_BIO
67 #include <openssl/bio.h>
68 #endif
69 
70 /*
71 #define EVP_RC2_KEY_SIZE		16
72 #define EVP_RC4_KEY_SIZE		16
73 #define EVP_BLOWFISH_KEY_SIZE		16
74 #define EVP_CAST5_KEY_SIZE		16
75 #define EVP_RC5_32_12_16_KEY_SIZE	16
76 */
77 #define EVP_MAX_MD_SIZE			64	/* longest known is SHA512 */
78 #define EVP_MAX_KEY_LENGTH		64
79 #define EVP_MAX_IV_LENGTH		16
80 #define EVP_MAX_BLOCK_LENGTH		32
81 
82 #define PKCS5_SALT_LEN			8
83 /* Default PKCS#5 iteration count */
84 #define PKCS5_DEFAULT_ITER		2048
85 
86 #include <openssl/objects.h>
87 
88 #define EVP_PK_RSA	0x0001
89 #define EVP_PK_DSA	0x0002
90 #define EVP_PK_DH	0x0004
91 #define EVP_PK_EC	0x0008
92 #define EVP_PKT_SIGN	0x0010
93 #define EVP_PKT_ENC	0x0020
94 #define EVP_PKT_EXCH	0x0040
95 #define EVP_PKS_RSA	0x0100
96 #define EVP_PKS_DSA	0x0200
97 #define EVP_PKS_EC	0x0400
98 #define EVP_PKT_EXP	0x1000 /* <= 512 bit key */
99 
100 #define EVP_PKEY_NONE	NID_undef
101 #define EVP_PKEY_RSA	NID_rsaEncryption
102 #define EVP_PKEY_RSA_PSS NID_rsassaPss
103 #define EVP_PKEY_RSA2	NID_rsa
104 #define EVP_PKEY_DSA	NID_dsa
105 #define EVP_PKEY_DSA1	NID_dsa_2
106 #define EVP_PKEY_DSA2	NID_dsaWithSHA
107 #define EVP_PKEY_DSA3	NID_dsaWithSHA1
108 #define EVP_PKEY_DSA4	NID_dsaWithSHA1_2
109 #define EVP_PKEY_DH	NID_dhKeyAgreement
110 #define EVP_PKEY_EC	NID_X9_62_id_ecPublicKey
111 #define EVP_PKEY_GOSTR01 NID_id_GostR3410_2001
112 #define EVP_PKEY_GOSTIMIT NID_id_Gost28147_89_MAC
113 #define EVP_PKEY_HMAC	NID_hmac
114 #define EVP_PKEY_CMAC	NID_cmac
115 #define EVP_PKEY_GOSTR12_256 NID_id_tc26_gost3410_2012_256
116 #define EVP_PKEY_GOSTR12_512 NID_id_tc26_gost3410_2012_512
117 
118 #ifdef	__cplusplus
119 extern "C" {
120 #endif
121 
122 /* Type needs to be a bit field
123  * Sub-type needs to be for variations on the method, as in, can it do
124  * arbitrary encryption.... */
125 struct evp_pkey_st {
126 	int type;
127 	int save_type;
128 	int references;
129 	const EVP_PKEY_ASN1_METHOD *ameth;
130 	ENGINE *engine;
131 	union	{
132 		char *ptr;
133 #ifndef OPENSSL_NO_RSA
134 		struct rsa_st *rsa;	/* RSA */
135 #endif
136 #ifndef OPENSSL_NO_DSA
137 		struct dsa_st *dsa;	/* DSA */
138 #endif
139 #ifndef OPENSSL_NO_DH
140 		struct dh_st *dh;	/* DH */
141 #endif
142 #ifndef OPENSSL_NO_EC
143 		struct ec_key_st *ec;	/* ECC */
144 #endif
145 #ifndef OPENSSL_NO_GOST
146 		struct gost_key_st *gost; /* GOST */
147 #endif
148 	} pkey;
149 	int save_parameters;
150 	STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
151 } /* EVP_PKEY */;
152 
153 #define EVP_PKEY_MO_SIGN	0x0001
154 #define EVP_PKEY_MO_VERIFY	0x0002
155 #define EVP_PKEY_MO_ENCRYPT	0x0004
156 #define EVP_PKEY_MO_DECRYPT	0x0008
157 
158 typedef int evp_sign_method(int type, const unsigned char *m,
159     unsigned int m_length, unsigned char *sigret, unsigned int *siglen,
160     void *key);
161 typedef int evp_verify_method(int type, const unsigned char *m,
162     unsigned int m_length, const unsigned char *sigbuf, unsigned int siglen,
163     void *key);
164 
165 #ifndef EVP_MD
166 struct env_md_st {
167 	int type;
168 	int pkey_type;
169 	int md_size;
170 	unsigned long flags;
171 	int (*init)(EVP_MD_CTX *ctx);
172 	int (*update)(EVP_MD_CTX *ctx, const void *data, size_t count);
173 	int (*final)(EVP_MD_CTX *ctx, unsigned char *md);
174 	int (*copy)(EVP_MD_CTX *to, const EVP_MD_CTX *from);
175 	int (*cleanup)(EVP_MD_CTX *ctx);
176 
177 	evp_sign_method *sign;
178 	evp_verify_method *verify;
179 	int required_pkey_type[5]; /*EVP_PKEY_xxx */
180 	int block_size;
181 	int ctx_size; /* how big does the ctx->md_data need to be */
182 	/* control function */
183 	int (*md_ctrl)(EVP_MD_CTX *ctx, int cmd, int p1, void *p2);
184 } /* EVP_MD */;
185 
186 #define EVP_MD_FLAG_ONESHOT	0x0001 /* digest can only handle a single
187 					* block */
188 
189 #define EVP_MD_FLAG_PKEY_DIGEST	0x0002 /* digest is a "clone" digest used
190 					* which is a copy of an existing
191 					* one for a specific public key type.
192 					* EVP_dss1() etc */
193 
194 /* Digest uses EVP_PKEY_METHOD for signing instead of MD specific signing */
195 
196 #define EVP_MD_FLAG_PKEY_METHOD_SIGNATURE	0x0004
197 
198 /* DigestAlgorithmIdentifier flags... */
199 
200 #define EVP_MD_FLAG_DIGALGID_MASK		0x0018
201 
202 /* NULL or absent parameter accepted. Use NULL */
203 
204 #define EVP_MD_FLAG_DIGALGID_NULL		0x0000
205 
206 /* NULL or absent parameter accepted. Use NULL for PKCS#1 otherwise absent */
207 
208 #define EVP_MD_FLAG_DIGALGID_ABSENT		0x0008
209 
210 /* Custom handling via ctrl */
211 
212 #define EVP_MD_FLAG_DIGALGID_CUSTOM		0x0018
213 
214 #define EVP_MD_FLAG_FIPS	0x0400 /* Note if suitable for use in FIPS mode */
215 
216 /* Digest ctrls */
217 
218 #define	EVP_MD_CTRL_DIGALGID			0x1
219 #define	EVP_MD_CTRL_MICALG			0x2
220 #define	EVP_MD_CTRL_SET_KEY			0x3
221 #define	EVP_MD_CTRL_GOST_SET_SBOX		0x4
222 
223 /* Minimum Algorithm specific ctrl value */
224 
225 #define	EVP_MD_CTRL_ALG_CTRL			0x1000
226 
227 #define EVP_PKEY_NULL_method	NULL,NULL,{0,0,0,0}
228 
229 #ifndef OPENSSL_NO_DSA
230 #define EVP_PKEY_DSA_method	(evp_sign_method *)DSA_sign, \
231 				(evp_verify_method *)DSA_verify, \
232 				{EVP_PKEY_DSA,EVP_PKEY_DSA2,EVP_PKEY_DSA3, \
233 					EVP_PKEY_DSA4,0}
234 #else
235 #define EVP_PKEY_DSA_method	EVP_PKEY_NULL_method
236 #endif
237 
238 #ifndef OPENSSL_NO_ECDSA
239 #define EVP_PKEY_ECDSA_method   (evp_sign_method *)ECDSA_sign, \
240 				(evp_verify_method *)ECDSA_verify, \
241                                  {EVP_PKEY_EC,0,0,0}
242 #else
243 #define EVP_PKEY_ECDSA_method   EVP_PKEY_NULL_method
244 #endif
245 
246 #ifndef OPENSSL_NO_RSA
247 #define EVP_PKEY_RSA_method	(evp_sign_method *)RSA_sign, \
248 				(evp_verify_method *)RSA_verify, \
249 				{EVP_PKEY_RSA,EVP_PKEY_RSA2,0,0}
250 #define EVP_PKEY_RSA_ASN1_OCTET_STRING_method \
251 				(evp_sign_method *)RSA_sign_ASN1_OCTET_STRING, \
252 				(evp_verify_method *)RSA_verify_ASN1_OCTET_STRING, \
253 				{EVP_PKEY_RSA,EVP_PKEY_RSA2,0,0}
254 #else
255 #define EVP_PKEY_RSA_method	EVP_PKEY_NULL_method
256 #define EVP_PKEY_RSA_ASN1_OCTET_STRING_method EVP_PKEY_NULL_method
257 #endif
258 
259 #endif /* !EVP_MD */
260 
261 struct env_md_ctx_st {
262 	const EVP_MD *digest;
263 	ENGINE *engine; /* functional reference if 'digest' is ENGINE-provided */
264 	unsigned long flags;
265 	void *md_data;
266 	/* Public key context for sign/verify */
267 	EVP_PKEY_CTX *pctx;
268 	/* Update function: usually copied from EVP_MD */
269 	int (*update)(EVP_MD_CTX *ctx, const void *data, size_t count);
270 } /* EVP_MD_CTX */;
271 
272 /* values for EVP_MD_CTX flags */
273 
274 #define EVP_MD_CTX_FLAG_ONESHOT		0x0001 /* digest update will be called
275 						* once only */
276 #define EVP_MD_CTX_FLAG_CLEANED		0x0002 /* context has already been
277 						* cleaned */
278 #define EVP_MD_CTX_FLAG_REUSE		0x0004 /* Don't free up ctx->md_data
279 						* in EVP_MD_CTX_cleanup */
280 /* FIPS and pad options are ignored in 1.0.0, definitions are here
281  * so we don't accidentally reuse the values for other purposes.
282  */
283 
284 #define EVP_MD_CTX_FLAG_NON_FIPS_ALLOW	0x0008	/* Allow use of non FIPS digest
285 						 * in FIPS mode */
286 
287 /* The following PAD options are also currently ignored in 1.0.0, digest
288  * parameters are handled through EVP_DigestSign*() and EVP_DigestVerify*()
289  * instead.
290  */
291 #define EVP_MD_CTX_FLAG_PAD_MASK	0xF0	/* RSA mode to use */
292 #define EVP_MD_CTX_FLAG_PAD_PKCS1	0x00	/* PKCS#1 v1.5 mode */
293 #define EVP_MD_CTX_FLAG_PAD_X931	0x10	/* X9.31 mode */
294 #define EVP_MD_CTX_FLAG_PAD_PSS		0x20	/* PSS mode */
295 
296 #define EVP_MD_CTX_FLAG_NO_INIT		0x0100 /* Don't initialize md_data */
297 
298 struct evp_cipher_st {
299 	int nid;
300 	int block_size;
301 	int key_len;		/* Default value for variable length ciphers */
302 	int iv_len;
303 	unsigned long flags;	/* Various flags */
304 	int (*init)(EVP_CIPHER_CTX *ctx, const unsigned char *key,
305 	    const unsigned char *iv, int enc);	/* init key */
306 	int (*do_cipher)(EVP_CIPHER_CTX *ctx, unsigned char *out,
307 	    const unsigned char *in, size_t inl);/* encrypt/decrypt data */
308 	int (*cleanup)(EVP_CIPHER_CTX *); /* cleanup ctx */
309 	int ctx_size;		/* how big ctx->cipher_data needs to be */
310 	int (*set_asn1_parameters)(EVP_CIPHER_CTX *, ASN1_TYPE *); /* Populate a ASN1_TYPE with parameters */
311 	int (*get_asn1_parameters)(EVP_CIPHER_CTX *, ASN1_TYPE *); /* Get parameters from a ASN1_TYPE */
312 	int (*ctrl)(EVP_CIPHER_CTX *, int type, int arg, void *ptr); /* Miscellaneous operations */
313 	void *app_data;		/* Application data */
314 } /* EVP_CIPHER */;
315 
316 /* Values for cipher flags */
317 
318 /* Modes for ciphers */
319 
320 #define		EVP_CIPH_STREAM_CIPHER		0x0
321 #define		EVP_CIPH_ECB_MODE		0x1
322 #define		EVP_CIPH_CBC_MODE		0x2
323 #define		EVP_CIPH_CFB_MODE		0x3
324 #define		EVP_CIPH_OFB_MODE		0x4
325 #define		EVP_CIPH_CTR_MODE		0x5
326 #define		EVP_CIPH_GCM_MODE		0x6
327 #define		EVP_CIPH_CCM_MODE		0x7
328 #define		EVP_CIPH_XTS_MODE		0x10001
329 #define		EVP_CIPH_WRAP_MODE		0x10002
330 #define 	EVP_CIPH_MODE			0xF0007
331 /* Set if variable length cipher */
332 #define 	EVP_CIPH_VARIABLE_LENGTH	0x8
333 /* Set if the iv handling should be done by the cipher itself */
334 #define 	EVP_CIPH_CUSTOM_IV		0x10
335 /* Set if the cipher's init() function should be called if key is NULL */
336 #define 	EVP_CIPH_ALWAYS_CALL_INIT	0x20
337 /* Call ctrl() to init cipher parameters */
338 #define 	EVP_CIPH_CTRL_INIT		0x40
339 /* Don't use standard key length function */
340 #define 	EVP_CIPH_CUSTOM_KEY_LENGTH	0x80
341 /* Don't use standard block padding */
342 #define 	EVP_CIPH_NO_PADDING		0x100
343 /* cipher handles random key generation */
344 #define 	EVP_CIPH_RAND_KEY		0x200
345 /* cipher has its own additional copying logic */
346 #define 	EVP_CIPH_CUSTOM_COPY		0x400
347 /* Allow use default ASN1 get/set iv */
348 #define		EVP_CIPH_FLAG_DEFAULT_ASN1	0x1000
349 /* Buffer length in bits not bytes: CFB1 mode only */
350 #define		EVP_CIPH_FLAG_LENGTH_BITS	0x2000
351 /* Note if suitable for use in FIPS mode */
352 #define		EVP_CIPH_FLAG_FIPS		0x4000
353 /* Allow non FIPS cipher in FIPS mode */
354 #define		EVP_CIPH_FLAG_NON_FIPS_ALLOW	0x8000
355 /* Cipher handles any and all padding logic as well
356  * as finalisation.
357  */
358 #define 	EVP_CIPH_FLAG_CUSTOM_CIPHER	0x100000
359 #define		EVP_CIPH_FLAG_AEAD_CIPHER	0x200000
360 
361 /*
362  * Cipher context flag to indicate that we can handle wrap mode: if allowed in
363  * older applications, it could overflow buffers.
364  */
365 #define		EVP_CIPHER_CTX_FLAG_WRAP_ALLOW	0x1
366 
367 /* ctrl() values */
368 
369 #define		EVP_CTRL_INIT			0x0
370 #define 	EVP_CTRL_SET_KEY_LENGTH		0x1
371 #define 	EVP_CTRL_GET_RC2_KEY_BITS	0x2
372 #define 	EVP_CTRL_SET_RC2_KEY_BITS	0x3
373 #define 	EVP_CTRL_GET_RC5_ROUNDS		0x4
374 #define 	EVP_CTRL_SET_RC5_ROUNDS		0x5
375 #define 	EVP_CTRL_RAND_KEY		0x6
376 #define 	EVP_CTRL_PBE_PRF_NID		0x7
377 #define 	EVP_CTRL_COPY			0x8
378 #define 	EVP_CTRL_GCM_SET_IVLEN		0x9
379 #define 	EVP_CTRL_GCM_GET_TAG		0x10
380 #define 	EVP_CTRL_GCM_SET_TAG		0x11
381 #define		EVP_CTRL_GCM_SET_IV_FIXED	0x12
382 #define		EVP_CTRL_GCM_IV_GEN		0x13
383 #define		EVP_CTRL_CCM_SET_IVLEN		EVP_CTRL_GCM_SET_IVLEN
384 #define		EVP_CTRL_CCM_GET_TAG		EVP_CTRL_GCM_GET_TAG
385 #define		EVP_CTRL_CCM_SET_TAG		EVP_CTRL_GCM_SET_TAG
386 #define		EVP_CTRL_CCM_SET_L		0x14
387 #define		EVP_CTRL_CCM_SET_MSGLEN		0x15
388 /* AEAD cipher deduces payload length and returns number of bytes
389  * required to store MAC and eventual padding. Subsequent call to
390  * EVP_Cipher even appends/verifies MAC.
391  */
392 #define		EVP_CTRL_AEAD_TLS1_AAD		0x16
393 /* Used by composite AEAD ciphers, no-op in GCM, CCM... */
394 #define		EVP_CTRL_AEAD_SET_MAC_KEY	0x17
395 /* Set the GCM invocation field, decrypt only */
396 #define		EVP_CTRL_GCM_SET_IV_INV		0x18
397 /* Set the S-BOX NID for GOST ciphers */
398 #define		EVP_CTRL_GOST_SET_SBOX		0x19
399 
400 /* GCM TLS constants */
401 /* Length of fixed part of IV derived from PRF */
402 #define EVP_GCM_TLS_FIXED_IV_LEN			4
403 /* Length of explicit part of IV part of TLS records */
404 #define EVP_GCM_TLS_EXPLICIT_IV_LEN			8
405 /* Length of tag for TLS */
406 #define EVP_GCM_TLS_TAG_LEN				16
407 
408 typedef struct evp_cipher_info_st {
409 	const EVP_CIPHER *cipher;
410 	unsigned char iv[EVP_MAX_IV_LENGTH];
411 } EVP_CIPHER_INFO;
412 
413 struct evp_cipher_ctx_st {
414 	const EVP_CIPHER *cipher;
415 	ENGINE *engine;	/* functional reference if 'cipher' is ENGINE-provided */
416 	int encrypt;		/* encrypt or decrypt */
417 	int buf_len;		/* number we have left */
418 
419 	unsigned char  oiv[EVP_MAX_IV_LENGTH];	/* original iv */
420 	unsigned char  iv[EVP_MAX_IV_LENGTH];	/* working iv */
421 	unsigned char buf[EVP_MAX_BLOCK_LENGTH];/* saved partial block */
422 	int num;				/* used by cfb/ofb/ctr mode */
423 
424 	void *app_data;		/* application stuff */
425 	int key_len;		/* May change for variable length cipher */
426 	unsigned long flags;	/* Various flags */
427 	void *cipher_data; /* per EVP data */
428 	int final_used;
429 	int block_mask;
430 	unsigned char final[EVP_MAX_BLOCK_LENGTH];/* possible final block */
431 } /* EVP_CIPHER_CTX */;
432 
433 typedef struct evp_Encode_Ctx_st {
434 	int num;	/* number saved in a partial encode/decode */
435 	int length;	/* The length is either the output line length
436 			 * (in input bytes) or the shortest input line
437 			 * length that is ok.  Once decoding begins,
438 			 * the length is adjusted up each time a longer
439 			 * line is decoded */
440 	unsigned char enc_data[80];	/* data to encode */
441 	int line_num;	/* number read on current line */
442 	int expect_nl;
443 } EVP_ENCODE_CTX;
444 
445 /* Password based encryption function */
446 typedef int (EVP_PBE_KEYGEN)(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
447     ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md, int en_de);
448 
449 #ifndef OPENSSL_NO_RSA
450 #define EVP_PKEY_assign_RSA(pkey,rsa) EVP_PKEY_assign((pkey),EVP_PKEY_RSA,\
451 					(char *)(rsa))
452 #endif
453 
454 #ifndef OPENSSL_NO_DSA
455 #define EVP_PKEY_assign_DSA(pkey,dsa) EVP_PKEY_assign((pkey),EVP_PKEY_DSA,\
456 					(char *)(dsa))
457 #endif
458 
459 #ifndef OPENSSL_NO_DH
460 #define EVP_PKEY_assign_DH(pkey,dh) EVP_PKEY_assign((pkey),EVP_PKEY_DH,\
461 					(char *)(dh))
462 #endif
463 
464 #ifndef OPENSSL_NO_EC
465 #define EVP_PKEY_assign_EC_KEY(pkey,eckey) EVP_PKEY_assign((pkey),EVP_PKEY_EC,\
466                                         (char *)(eckey))
467 #endif
468 
469 #ifndef OPENSSL_NO_GOST
470 #define EVP_PKEY_assign_GOST(pkey,gostkey) EVP_PKEY_assign((pkey),EVP_PKEY_GOSTR01,\
471                                         (char *)(gostkey))
472 #endif
473 
474 /* Add some extra combinations */
475 #define EVP_get_digestbynid(a) EVP_get_digestbyname(OBJ_nid2sn(a))
476 #define EVP_get_digestbyobj(a) EVP_get_digestbynid(OBJ_obj2nid(a))
477 #define EVP_get_cipherbynid(a) EVP_get_cipherbyname(OBJ_nid2sn(a))
478 #define EVP_get_cipherbyobj(a) EVP_get_cipherbynid(OBJ_obj2nid(a))
479 
480 int EVP_MD_type(const EVP_MD *md);
481 #define EVP_MD_nid(e)			EVP_MD_type(e)
482 #define EVP_MD_name(e)			OBJ_nid2sn(EVP_MD_nid(e))
483 int EVP_MD_pkey_type(const EVP_MD *md);
484 int EVP_MD_size(const EVP_MD *md);
485 int EVP_MD_block_size(const EVP_MD *md);
486 unsigned long EVP_MD_flags(const EVP_MD *md);
487 
488 const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx);
489 #define EVP_MD_CTX_size(e)		EVP_MD_size(EVP_MD_CTX_md(e))
490 #define EVP_MD_CTX_block_size(e)	EVP_MD_block_size(EVP_MD_CTX_md(e))
491 #define EVP_MD_CTX_type(e)		EVP_MD_type(EVP_MD_CTX_md(e))
492 
493 int EVP_CIPHER_nid(const EVP_CIPHER *cipher);
494 #define EVP_CIPHER_name(e)		OBJ_nid2sn(EVP_CIPHER_nid(e))
495 int EVP_CIPHER_block_size(const EVP_CIPHER *cipher);
496 int EVP_CIPHER_key_length(const EVP_CIPHER *cipher);
497 int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher);
498 unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher);
499 #define EVP_CIPHER_mode(e)		(EVP_CIPHER_flags(e) & EVP_CIPH_MODE)
500 
501 const EVP_CIPHER * EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx);
502 int EVP_CIPHER_CTX_encrypting(const EVP_CIPHER_CTX *ctx);
503 int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx);
504 int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx);
505 int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx);
506 int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx);
507 int EVP_CIPHER_CTX_get_iv(const EVP_CIPHER_CTX *ctx,
508     unsigned char *iv, size_t len);
509 int EVP_CIPHER_CTX_set_iv(EVP_CIPHER_CTX *ctx,
510     const unsigned char *iv, size_t len);
511 int EVP_CIPHER_CTX_copy(EVP_CIPHER_CTX *out, const EVP_CIPHER_CTX *in);
512 void * EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx);
513 void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data);
514 #define EVP_CIPHER_CTX_type(c)         EVP_CIPHER_type(EVP_CIPHER_CTX_cipher(c))
515 unsigned long EVP_CIPHER_CTX_flags(const EVP_CIPHER_CTX *ctx);
516 #define EVP_CIPHER_CTX_mode(e)		(EVP_CIPHER_CTX_flags(e) & EVP_CIPH_MODE)
517 
518 #define EVP_ENCODE_LENGTH(l)	(((l+2)/3*4)+(l/48+1)*2+80)
519 #define EVP_DECODE_LENGTH(l)	((l+3)/4*3+80)
520 
521 #define EVP_SignInit_ex(a,b,c)		EVP_DigestInit_ex(a,b,c)
522 #define EVP_SignInit(a,b)		EVP_DigestInit(a,b)
523 #define EVP_SignUpdate(a,b,c)		EVP_DigestUpdate(a,b,c)
524 #define	EVP_VerifyInit_ex(a,b,c)	EVP_DigestInit_ex(a,b,c)
525 #define	EVP_VerifyInit(a,b)		EVP_DigestInit(a,b)
526 #define	EVP_VerifyUpdate(a,b,c)		EVP_DigestUpdate(a,b,c)
527 #define EVP_OpenUpdate(a,b,c,d,e)	EVP_DecryptUpdate(a,b,c,d,e)
528 #define EVP_SealUpdate(a,b,c,d,e)	EVP_EncryptUpdate(a,b,c,d,e)
529 #define EVP_DigestSignUpdate(a,b,c)	EVP_DigestUpdate(a,b,c)
530 #define EVP_DigestVerifyUpdate(a,b,c)	EVP_DigestUpdate(a,b,c)
531 
532 #define BIO_set_md(b,md)		BIO_ctrl(b,BIO_C_SET_MD,0,(char *)md)
533 #define BIO_get_md(b,mdp)		BIO_ctrl(b,BIO_C_GET_MD,0,(char *)mdp)
534 #define BIO_get_md_ctx(b,mdcp)     BIO_ctrl(b,BIO_C_GET_MD_CTX,0,(char *)mdcp)
535 #define BIO_set_md_ctx(b,mdcp)     BIO_ctrl(b,BIO_C_SET_MD_CTX,0,(char *)mdcp)
536 #define BIO_get_cipher_status(b)	BIO_ctrl(b,BIO_C_GET_CIPHER_STATUS,0,NULL)
537 #define BIO_get_cipher_ctx(b,c_pp)	BIO_ctrl(b,BIO_C_GET_CIPHER_CTX,0,(char *)c_pp)
538 
539 int EVP_Cipher(EVP_CIPHER_CTX *c, unsigned char *out, const unsigned char *in,
540     unsigned int inl);
541 
542 #define EVP_add_cipher_alias(n,alias) \
543 	OBJ_NAME_add((alias),OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS,(n))
544 #define EVP_add_digest_alias(n,alias) \
545 	OBJ_NAME_add((alias),OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS,(n))
546 #define EVP_delete_cipher_alias(alias) \
547 	OBJ_NAME_remove(alias,OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS);
548 #define EVP_delete_digest_alias(alias) \
549 	OBJ_NAME_remove(alias,OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS);
550 
551 EVP_MD_CTX *EVP_MD_CTX_new(void);
552 void EVP_MD_CTX_free(EVP_MD_CTX *ctx);
553 void EVP_MD_CTX_init(EVP_MD_CTX *ctx);
554 int EVP_MD_CTX_reset(EVP_MD_CTX *ctx);
555 EVP_MD_CTX *EVP_MD_CTX_create(void);
556 void EVP_MD_CTX_destroy(EVP_MD_CTX *ctx);
557 int EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx);
558 int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in);
559 void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags);
560 void EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags);
561 int EVP_MD_CTX_ctrl(EVP_MD_CTX *ctx, int type, int arg, void *ptr);
562 int EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags);
563 
564 int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl);
565 int EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *d, size_t cnt);
566 int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *s);
567 int EVP_Digest(const void *data, size_t count, unsigned char *md,
568     unsigned int *size, const EVP_MD *type, ENGINE *impl);
569 
570 int EVP_MD_CTX_copy(EVP_MD_CTX *out, const EVP_MD_CTX *in);
571 int EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type);
572 int EVP_DigestFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *s);
573 
574 int EVP_read_pw_string(char *buf, int length, const char *prompt, int verify);
575 int EVP_read_pw_string_min(char *buf, int minlen, int maxlen,
576     const char *prompt, int verify);
577 void EVP_set_pw_prompt(const char *prompt);
578 char *EVP_get_pw_prompt(void);
579 
580 int EVP_BytesToKey(const EVP_CIPHER *type, const EVP_MD *md,
581     const unsigned char *salt, const unsigned char *data, int datal, int count,
582     unsigned char *key, unsigned char *iv);
583 
584 void EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags);
585 void EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags);
586 int EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx, int flags);
587 
588 int EVP_EncryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
589     const unsigned char *key, const unsigned char *iv);
590 int EVP_EncryptInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
591     ENGINE *impl, const unsigned char *key, const unsigned char *iv);
592 int EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
593     const unsigned char *in, int inl);
594 int EVP_EncryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
595 #ifndef LIBRESSL_INTERNAL
596 int EVP_EncryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
597 #endif
598 
599 int EVP_DecryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
600     const unsigned char *key, const unsigned char *iv);
601 int EVP_DecryptInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
602     ENGINE *impl, const unsigned char *key, const unsigned char *iv);
603 int EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
604     const unsigned char *in, int inl);
605 int EVP_DecryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
606 #ifndef LIBRESSL_INTERNAL
607 int EVP_DecryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
608 #endif
609 
610 int EVP_CipherInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
611     const unsigned char *key, const unsigned char *iv, int enc);
612 int EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
613     ENGINE *impl, const unsigned char *key, const unsigned char *iv, int enc);
614 int EVP_CipherUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
615     const unsigned char *in, int inl);
616 int EVP_CipherFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
617 #ifndef LIBRESSL_INTERNAL
618 int EVP_CipherFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
619 #endif
620 
621 int EVP_SignFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *s,
622     EVP_PKEY *pkey);
623 
624 int EVP_VerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sigbuf,
625     unsigned int siglen, EVP_PKEY *pkey);
626 
627 int EVP_DigestSignInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
628     const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey);
629 int EVP_DigestSignFinal(EVP_MD_CTX *ctx, unsigned char *sigret, size_t *siglen);
630 
631 int EVP_DigestSign(EVP_MD_CTX *ctx, unsigned char *sigret, size_t *siglen,
632     const unsigned char *tbs, size_t tbslen);
633 
634 int EVP_DigestVerifyInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
635     const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey);
636 int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sig,
637     size_t siglen);
638 
639 int EVP_DigestVerify(EVP_MD_CTX *ctx, const unsigned char *sigret,
640     size_t siglen, const unsigned char *tbs, size_t tbslen);
641 
642 int EVP_OpenInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
643     const unsigned char *ek, int ekl, const unsigned char *iv, EVP_PKEY *priv);
644 int EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
645 
646 int EVP_SealInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
647     unsigned char **ek, int *ekl, unsigned char *iv, EVP_PKEY **pubk,
648     int npubk);
649 int EVP_SealFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
650 
651 EVP_ENCODE_CTX *EVP_ENCODE_CTX_new(void);
652 void EVP_ENCODE_CTX_free(EVP_ENCODE_CTX *ctx);
653 void EVP_EncodeInit(EVP_ENCODE_CTX *ctx);
654 int EVP_EncodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl,
655     const unsigned char *in, int inl);
656 void EVP_EncodeFinal(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl);
657 int EVP_EncodeBlock(unsigned char *t, const unsigned char *f, int n);
658 
659 void EVP_DecodeInit(EVP_ENCODE_CTX *ctx);
660 int EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl,
661     const unsigned char *in, int inl);
662 int EVP_DecodeFinal(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl);
663 int EVP_DecodeBlock(unsigned char *t, const unsigned char *f, int n);
664 
665 void EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *a);
666 int EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *a);
667 EVP_CIPHER_CTX *EVP_CIPHER_CTX_new(void);
668 void EVP_CIPHER_CTX_free(EVP_CIPHER_CTX *a);
669 int EVP_CIPHER_CTX_reset(EVP_CIPHER_CTX *a);
670 int EVP_CIPHER_CTX_set_key_length(EVP_CIPHER_CTX *x, int keylen);
671 int EVP_CIPHER_CTX_set_padding(EVP_CIPHER_CTX *c, int pad);
672 int EVP_CIPHER_CTX_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr);
673 int EVP_CIPHER_CTX_rand_key(EVP_CIPHER_CTX *ctx, unsigned char *key);
674 
675 #ifndef OPENSSL_NO_BIO
676 const BIO_METHOD *BIO_f_md(void);
677 const BIO_METHOD *BIO_f_base64(void);
678 const BIO_METHOD *BIO_f_cipher(void);
679 int BIO_set_cipher(BIO *b, const EVP_CIPHER *c, const unsigned char *k,
680     const unsigned char *i, int enc);
681 #endif
682 
683 const EVP_MD *EVP_md_null(void);
684 #ifndef OPENSSL_NO_MD4
685 const EVP_MD *EVP_md4(void);
686 #endif
687 #ifndef OPENSSL_NO_MD5
688 const EVP_MD *EVP_md5(void);
689 const EVP_MD *EVP_md5_sha1(void);
690 #endif
691 #ifndef OPENSSL_NO_SHA
692 const EVP_MD *EVP_sha1(void);
693 const EVP_MD *EVP_dss(void);
694 const EVP_MD *EVP_dss1(void);
695 const EVP_MD *EVP_ecdsa(void);
696 #endif
697 #ifndef OPENSSL_NO_SHA256
698 const EVP_MD *EVP_sha224(void);
699 const EVP_MD *EVP_sha256(void);
700 #endif
701 #ifndef OPENSSL_NO_SHA512
702 const EVP_MD *EVP_sha384(void);
703 const EVP_MD *EVP_sha512(void);
704 #endif
705 #ifndef OPENSSL_NO_SM3
706 const EVP_MD *EVP_sm3(void);
707 #endif
708 #ifndef OPENSSL_NO_RIPEMD
709 const EVP_MD *EVP_ripemd160(void);
710 #endif
711 #ifndef OPENSSL_NO_WHIRLPOOL
712 const EVP_MD *EVP_whirlpool(void);
713 #endif
714 #ifndef OPENSSL_NO_GOST
715 const EVP_MD *EVP_gostr341194(void);
716 const EVP_MD *EVP_gost2814789imit(void);
717 const EVP_MD *EVP_streebog256(void);
718 const EVP_MD *EVP_streebog512(void);
719 #endif
720 const EVP_CIPHER *EVP_enc_null(void);		/* does nothing :-) */
721 #ifndef OPENSSL_NO_DES
722 const EVP_CIPHER *EVP_des_ecb(void);
723 const EVP_CIPHER *EVP_des_ede(void);
724 const EVP_CIPHER *EVP_des_ede3(void);
725 const EVP_CIPHER *EVP_des_ede_ecb(void);
726 const EVP_CIPHER *EVP_des_ede3_ecb(void);
727 const EVP_CIPHER *EVP_des_cfb64(void);
728 # define EVP_des_cfb EVP_des_cfb64
729 const EVP_CIPHER *EVP_des_cfb1(void);
730 const EVP_CIPHER *EVP_des_cfb8(void);
731 const EVP_CIPHER *EVP_des_ede_cfb64(void);
732 # define EVP_des_ede_cfb EVP_des_ede_cfb64
733 const EVP_CIPHER *EVP_des_ede3_cfb64(void);
734 # define EVP_des_ede3_cfb EVP_des_ede3_cfb64
735 const EVP_CIPHER *EVP_des_ede3_cfb1(void);
736 const EVP_CIPHER *EVP_des_ede3_cfb8(void);
737 const EVP_CIPHER *EVP_des_ofb(void);
738 const EVP_CIPHER *EVP_des_ede_ofb(void);
739 const EVP_CIPHER *EVP_des_ede3_ofb(void);
740 const EVP_CIPHER *EVP_des_cbc(void);
741 const EVP_CIPHER *EVP_des_ede_cbc(void);
742 const EVP_CIPHER *EVP_des_ede3_cbc(void);
743 const EVP_CIPHER *EVP_desx_cbc(void);
744 #endif
745 #ifndef OPENSSL_NO_RC4
746 const EVP_CIPHER *EVP_rc4(void);
747 const EVP_CIPHER *EVP_rc4_40(void);
748 #ifndef OPENSSL_NO_MD5
749 const EVP_CIPHER *EVP_rc4_hmac_md5(void);
750 #endif
751 #endif
752 #ifndef OPENSSL_NO_IDEA
753 const EVP_CIPHER *EVP_idea_ecb(void);
754 const EVP_CIPHER *EVP_idea_cfb64(void);
755 # define EVP_idea_cfb EVP_idea_cfb64
756 const EVP_CIPHER *EVP_idea_ofb(void);
757 const EVP_CIPHER *EVP_idea_cbc(void);
758 #endif
759 #ifndef OPENSSL_NO_RC2
760 const EVP_CIPHER *EVP_rc2_ecb(void);
761 const EVP_CIPHER *EVP_rc2_cbc(void);
762 const EVP_CIPHER *EVP_rc2_40_cbc(void);
763 const EVP_CIPHER *EVP_rc2_64_cbc(void);
764 const EVP_CIPHER *EVP_rc2_cfb64(void);
765 # define EVP_rc2_cfb EVP_rc2_cfb64
766 const EVP_CIPHER *EVP_rc2_ofb(void);
767 #endif
768 #ifndef OPENSSL_NO_BF
769 const EVP_CIPHER *EVP_bf_ecb(void);
770 const EVP_CIPHER *EVP_bf_cbc(void);
771 const EVP_CIPHER *EVP_bf_cfb64(void);
772 # define EVP_bf_cfb EVP_bf_cfb64
773 const EVP_CIPHER *EVP_bf_ofb(void);
774 #endif
775 #ifndef OPENSSL_NO_CAST
776 const EVP_CIPHER *EVP_cast5_ecb(void);
777 const EVP_CIPHER *EVP_cast5_cbc(void);
778 const EVP_CIPHER *EVP_cast5_cfb64(void);
779 # define EVP_cast5_cfb EVP_cast5_cfb64
780 const EVP_CIPHER *EVP_cast5_ofb(void);
781 #endif
782 #ifndef OPENSSL_NO_AES
783 const EVP_CIPHER *EVP_aes_128_ecb(void);
784 const EVP_CIPHER *EVP_aes_128_cbc(void);
785 const EVP_CIPHER *EVP_aes_128_cfb1(void);
786 const EVP_CIPHER *EVP_aes_128_cfb8(void);
787 const EVP_CIPHER *EVP_aes_128_cfb128(void);
788 # define EVP_aes_128_cfb EVP_aes_128_cfb128
789 const EVP_CIPHER *EVP_aes_128_ofb(void);
790 const EVP_CIPHER *EVP_aes_128_ctr(void);
791 const EVP_CIPHER *EVP_aes_128_ccm(void);
792 const EVP_CIPHER *EVP_aes_128_gcm(void);
793 const EVP_CIPHER *EVP_aes_128_wrap(void);
794 const EVP_CIPHER *EVP_aes_128_xts(void);
795 const EVP_CIPHER *EVP_aes_192_ecb(void);
796 const EVP_CIPHER *EVP_aes_192_cbc(void);
797 const EVP_CIPHER *EVP_aes_192_cfb1(void);
798 const EVP_CIPHER *EVP_aes_192_cfb8(void);
799 const EVP_CIPHER *EVP_aes_192_cfb128(void);
800 # define EVP_aes_192_cfb EVP_aes_192_cfb128
801 const EVP_CIPHER *EVP_aes_192_ofb(void);
802 const EVP_CIPHER *EVP_aes_192_ctr(void);
803 const EVP_CIPHER *EVP_aes_192_ccm(void);
804 const EVP_CIPHER *EVP_aes_192_gcm(void);
805 const EVP_CIPHER *EVP_aes_192_wrap(void);
806 const EVP_CIPHER *EVP_aes_256_ecb(void);
807 const EVP_CIPHER *EVP_aes_256_cbc(void);
808 const EVP_CIPHER *EVP_aes_256_cfb1(void);
809 const EVP_CIPHER *EVP_aes_256_cfb8(void);
810 const EVP_CIPHER *EVP_aes_256_cfb128(void);
811 # define EVP_aes_256_cfb EVP_aes_256_cfb128
812 const EVP_CIPHER *EVP_aes_256_ofb(void);
813 const EVP_CIPHER *EVP_aes_256_ctr(void);
814 const EVP_CIPHER *EVP_aes_256_ccm(void);
815 const EVP_CIPHER *EVP_aes_256_gcm(void);
816 const EVP_CIPHER *EVP_aes_256_wrap(void);
817 const EVP_CIPHER *EVP_aes_256_xts(void);
818 #if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_SHA1)
819 const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void);
820 const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha1(void);
821 #endif
822 #endif
823 #ifndef OPENSSL_NO_CAMELLIA
824 const EVP_CIPHER *EVP_camellia_128_ecb(void);
825 const EVP_CIPHER *EVP_camellia_128_cbc(void);
826 const EVP_CIPHER *EVP_camellia_128_cfb1(void);
827 const EVP_CIPHER *EVP_camellia_128_cfb8(void);
828 const EVP_CIPHER *EVP_camellia_128_cfb128(void);
829 # define EVP_camellia_128_cfb EVP_camellia_128_cfb128
830 const EVP_CIPHER *EVP_camellia_128_ofb(void);
831 const EVP_CIPHER *EVP_camellia_192_ecb(void);
832 const EVP_CIPHER *EVP_camellia_192_cbc(void);
833 const EVP_CIPHER *EVP_camellia_192_cfb1(void);
834 const EVP_CIPHER *EVP_camellia_192_cfb8(void);
835 const EVP_CIPHER *EVP_camellia_192_cfb128(void);
836 # define EVP_camellia_192_cfb EVP_camellia_192_cfb128
837 const EVP_CIPHER *EVP_camellia_192_ofb(void);
838 const EVP_CIPHER *EVP_camellia_256_ecb(void);
839 const EVP_CIPHER *EVP_camellia_256_cbc(void);
840 const EVP_CIPHER *EVP_camellia_256_cfb1(void);
841 const EVP_CIPHER *EVP_camellia_256_cfb8(void);
842 const EVP_CIPHER *EVP_camellia_256_cfb128(void);
843 # define EVP_camellia_256_cfb EVP_camellia_256_cfb128
844 const EVP_CIPHER *EVP_camellia_256_ofb(void);
845 #endif
846 
847 #ifndef OPENSSL_NO_CHACHA
848 const EVP_CIPHER *EVP_chacha20(void);
849 #endif
850 
851 #ifndef OPENSSL_NO_GOST
852 const EVP_CIPHER *EVP_gost2814789_ecb(void);
853 const EVP_CIPHER *EVP_gost2814789_cfb64(void);
854 const EVP_CIPHER *EVP_gost2814789_cnt(void);
855 #endif
856 
857 #ifndef OPENSSL_NO_SM4
858 const EVP_CIPHER *EVP_sm4_ecb(void);
859 const EVP_CIPHER *EVP_sm4_cbc(void);
860 const EVP_CIPHER *EVP_sm4_cfb128(void);
861 #define EVP_sm4_cfb EVP_sm4_cfb128
862 const EVP_CIPHER *EVP_sm4_ofb(void);
863 const EVP_CIPHER *EVP_sm4_ctr(void);
864 #endif
865 
866 void OPENSSL_add_all_algorithms_noconf(void);
867 void OPENSSL_add_all_algorithms_conf(void);
868 
869 #ifdef OPENSSL_LOAD_CONF
870 #define OpenSSL_add_all_algorithms() OPENSSL_add_all_algorithms_conf()
871 #else
872 #define OpenSSL_add_all_algorithms() OPENSSL_add_all_algorithms_noconf()
873 #endif
874 
875 void OpenSSL_add_all_ciphers(void);
876 void OpenSSL_add_all_digests(void);
877 
878 #define SSLeay_add_all_algorithms() OpenSSL_add_all_algorithms()
879 #define SSLeay_add_all_ciphers() OpenSSL_add_all_ciphers()
880 #define SSLeay_add_all_digests() OpenSSL_add_all_digests()
881 
882 int EVP_add_cipher(const EVP_CIPHER *cipher);
883 int EVP_add_digest(const EVP_MD *digest);
884 
885 const EVP_CIPHER *EVP_get_cipherbyname(const char *name);
886 const EVP_MD *EVP_get_digestbyname(const char *name);
887 void EVP_cleanup(void);
888 
889 void EVP_CIPHER_do_all(void (*fn)(const EVP_CIPHER *ciph, const char *from,
890     const char *to, void *x), void *arg);
891 void EVP_CIPHER_do_all_sorted(void (*fn)(const EVP_CIPHER *ciph,
892     const char *from, const char *to, void *x), void *arg);
893 
894 void EVP_MD_do_all(void (*fn)(const EVP_MD *ciph, const char *from,
895     const char *to, void *x), void *arg);
896 void EVP_MD_do_all_sorted(void (*fn)(const EVP_MD *ciph, const char *from,
897     const char *to, void *x), void *arg);
898 
899 int EVP_PKEY_decrypt_old(unsigned char *dec_key, const unsigned char *enc_key,
900     int enc_key_len, EVP_PKEY *private_key);
901 int EVP_PKEY_encrypt_old(unsigned char *enc_key, const unsigned char *key,
902     int key_len, EVP_PKEY *pub_key);
903 int EVP_PKEY_type(int type);
904 int EVP_PKEY_id(const EVP_PKEY *pkey);
905 int EVP_PKEY_base_id(const EVP_PKEY *pkey);
906 int EVP_PKEY_bits(const EVP_PKEY *pkey);
907 int EVP_PKEY_size(const EVP_PKEY *pkey);
908 int EVP_PKEY_set_type(EVP_PKEY *pkey, int type);
909 int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len);
910 int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key);
911 void *EVP_PKEY_get0(const EVP_PKEY *pkey);
912 const unsigned char *EVP_PKEY_get0_hmac(const EVP_PKEY *pkey, size_t *len);
913 
914 #ifndef OPENSSL_NO_RSA
915 struct rsa_st;
916 struct rsa_st *EVP_PKEY_get0_RSA(EVP_PKEY *pkey);
917 struct rsa_st *EVP_PKEY_get1_RSA(EVP_PKEY *pkey);
918 int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, struct rsa_st *key);
919 #endif
920 #ifndef OPENSSL_NO_DSA
921 struct dsa_st;
922 struct dsa_st *EVP_PKEY_get0_DSA(EVP_PKEY *pkey);
923 struct dsa_st *EVP_PKEY_get1_DSA(EVP_PKEY *pkey);
924 int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, struct dsa_st *key);
925 #endif
926 #ifndef OPENSSL_NO_DH
927 struct dh_st;
928 struct dh_st *EVP_PKEY_get0_DH(EVP_PKEY *pkey);
929 struct dh_st *EVP_PKEY_get1_DH(EVP_PKEY *pkey);
930 int EVP_PKEY_set1_DH(EVP_PKEY *pkey, struct dh_st *key);
931 #endif
932 #ifndef OPENSSL_NO_EC
933 struct ec_key_st;
934 struct ec_key_st *EVP_PKEY_get0_EC_KEY(EVP_PKEY *pkey);
935 struct ec_key_st *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey);
936 int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, struct ec_key_st *key);
937 #endif
938 #ifndef OPENSSL_NO_GOST
939 struct gost_key_st;
940 #endif
941 
942 EVP_PKEY *EVP_PKEY_new(void);
943 void EVP_PKEY_free(EVP_PKEY *pkey);
944 int EVP_PKEY_up_ref(EVP_PKEY *pkey);
945 
946 EVP_PKEY *d2i_PublicKey(int type, EVP_PKEY **a, const unsigned char **pp,
947     long length);
948 int i2d_PublicKey(EVP_PKEY *a, unsigned char **pp);
949 
950 EVP_PKEY *d2i_PrivateKey(int type, EVP_PKEY **a, const unsigned char **pp,
951     long length);
952 EVP_PKEY *d2i_AutoPrivateKey(EVP_PKEY **a, const unsigned char **pp,
953     long length);
954 int i2d_PrivateKey(EVP_PKEY *a, unsigned char **pp);
955 
956 int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from);
957 int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey);
958 int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode);
959 int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b);
960 
961 int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b);
962 
963 int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, int indent,
964     ASN1_PCTX *pctx);
965 int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey, int indent,
966     ASN1_PCTX *pctx);
967 int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, int indent,
968     ASN1_PCTX *pctx);
969 
970 int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid);
971 
972 int EVP_CIPHER_type(const EVP_CIPHER *ctx);
973 
974 /* calls methods */
975 int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
976 int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
977 
978 /* These are used by EVP_CIPHER methods */
979 int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
980 int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
981 
982 /* PKCS5 password based encryption */
983 int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
984     ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md, int en_de);
985 int PKCS5_PBKDF2_HMAC_SHA1(const char *pass, int passlen,
986     const unsigned char *salt, int saltlen, int iter, int keylen,
987     unsigned char *out);
988 int PKCS5_PBKDF2_HMAC(const char *pass, int passlen, const unsigned char *salt,
989     int saltlen, int iter, const EVP_MD *digest, int keylen,
990     unsigned char *out);
991 int PKCS5_v2_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
992     ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md,
993     int en_de);
994 
995 void PKCS5_PBE_add(void);
996 
997 int EVP_PBE_CipherInit (ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
998     ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de);
999 
1000 /* PBE type */
1001 
1002 /* Can appear as the outermost AlgorithmIdentifier */
1003 #define EVP_PBE_TYPE_OUTER	0x0
1004 /* Is an PRF type OID */
1005 #define EVP_PBE_TYPE_PRF	0x1
1006 
1007 int EVP_PBE_alg_add_type(int pbe_type, int pbe_nid, int cipher_nid, int md_nid,
1008     EVP_PBE_KEYGEN *keygen);
1009 int EVP_PBE_alg_add(int nid, const EVP_CIPHER *cipher, const EVP_MD *md,
1010     EVP_PBE_KEYGEN *keygen);
1011 int EVP_PBE_find(int type, int pbe_nid, int *pcnid, int *pmnid,
1012     EVP_PBE_KEYGEN **pkeygen);
1013 void EVP_PBE_cleanup(void);
1014 
1015 #define ASN1_PKEY_ALIAS		0x1
1016 #define ASN1_PKEY_DYNAMIC	0x2
1017 #define ASN1_PKEY_SIGPARAM_NULL	0x4
1018 
1019 #define ASN1_PKEY_CTRL_PKCS7_SIGN	0x1
1020 #define ASN1_PKEY_CTRL_PKCS7_ENCRYPT	0x2
1021 #define ASN1_PKEY_CTRL_DEFAULT_MD_NID	0x3
1022 #define ASN1_PKEY_CTRL_CMS_SIGN		0x5
1023 #define ASN1_PKEY_CTRL_CMS_ENVELOPE	0x7
1024 #define ASN1_PKEY_CTRL_CMS_RI_TYPE	0x8
1025 
1026 int EVP_PKEY_asn1_get_count(void);
1027 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx);
1028 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(ENGINE **pe, int type);
1029 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pe,
1030     const char *str, int len);
1031 int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth);
1032 int EVP_PKEY_asn1_add_alias(int to, int from);
1033 int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *pkey_base_id, int *ppkey_flags,
1034     const char **pinfo, const char **ppem_str,
1035     const EVP_PKEY_ASN1_METHOD *ameth);
1036 
1037 const EVP_PKEY_ASN1_METHOD* EVP_PKEY_get0_asn1(const EVP_PKEY *pkey);
1038 EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id, int flags, const char *pem_str,
1039     const char *info);
1040 void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
1041     const EVP_PKEY_ASN1_METHOD *src);
1042 void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth);
1043 void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
1044     int (*pub_decode)(EVP_PKEY *pk, X509_PUBKEY *pub),
1045     int (*pub_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk),
1046     int (*pub_cmp)(const EVP_PKEY *a, const EVP_PKEY *b),
1047     int (*pub_print)(BIO *out, const EVP_PKEY *pkey, int indent,
1048     ASN1_PCTX *pctx),
1049     int (*pkey_size)(const EVP_PKEY *pk),
1050     int (*pkey_bits)(const EVP_PKEY *pk));
1051 void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
1052     int (*priv_decode)(EVP_PKEY *pk, const PKCS8_PRIV_KEY_INFO *p8inf),
1053     int (*priv_encode)(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk),
1054     int (*priv_print)(BIO *out, const EVP_PKEY *pkey, int indent,
1055     ASN1_PCTX *pctx));
1056 void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
1057     int (*param_decode)(EVP_PKEY *pkey, const unsigned char **pder, int derlen),
1058     int (*param_encode)(const EVP_PKEY *pkey, unsigned char **pder),
1059     int (*param_missing)(const EVP_PKEY *pk),
1060     int (*param_copy)(EVP_PKEY *to, const EVP_PKEY *from),
1061     int (*param_cmp)(const EVP_PKEY *a, const EVP_PKEY *b),
1062     int (*param_print)(BIO *out, const EVP_PKEY *pkey, int indent,
1063     ASN1_PCTX *pctx));
1064 
1065 void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
1066     void (*pkey_free)(EVP_PKEY *pkey));
1067 void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
1068     int (*pkey_ctrl)(EVP_PKEY *pkey, int op, long arg1, void *arg2));
1069 
1070 #define EVP_PKEY_OP_UNDEFINED		0
1071 #define EVP_PKEY_OP_PARAMGEN		(1<<1)
1072 #define EVP_PKEY_OP_KEYGEN		(1<<2)
1073 #define EVP_PKEY_OP_SIGN		(1<<3)
1074 #define EVP_PKEY_OP_VERIFY		(1<<4)
1075 #define EVP_PKEY_OP_VERIFYRECOVER	(1<<5)
1076 #define EVP_PKEY_OP_SIGNCTX		(1<<6)
1077 #define EVP_PKEY_OP_VERIFYCTX		(1<<7)
1078 #define EVP_PKEY_OP_ENCRYPT		(1<<8)
1079 #define EVP_PKEY_OP_DECRYPT		(1<<9)
1080 #define EVP_PKEY_OP_DERIVE		(1<<10)
1081 
1082 #define EVP_PKEY_OP_TYPE_SIG	\
1083 	(EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY | EVP_PKEY_OP_VERIFYRECOVER \
1084 		| EVP_PKEY_OP_SIGNCTX | EVP_PKEY_OP_VERIFYCTX)
1085 
1086 #define EVP_PKEY_OP_TYPE_CRYPT \
1087 	(EVP_PKEY_OP_ENCRYPT | EVP_PKEY_OP_DECRYPT)
1088 
1089 #define EVP_PKEY_OP_TYPE_NOGEN \
1090 	(EVP_PKEY_OP_SIG | EVP_PKEY_OP_CRYPT | EVP_PKEY_OP_DERIVE)
1091 
1092 #define EVP_PKEY_OP_TYPE_GEN \
1093 		(EVP_PKEY_OP_PARAMGEN | EVP_PKEY_OP_KEYGEN)
1094 
1095 #define EVP_PKEY_CTX_set_signature_md(ctx, md) \
1096 		EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, \
1097 		    EVP_PKEY_CTRL_MD, 0, (void *)md)
1098 
1099 #define EVP_PKEY_CTX_get_signature_md(ctx, pmd) \
1100 		EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, \
1101 		    EVP_PKEY_CTRL_GET_MD, 0, (void *)(pmd))
1102 
1103 #define EVP_PKEY_CTRL_MD		1
1104 #define EVP_PKEY_CTRL_PEER_KEY		2
1105 
1106 #define EVP_PKEY_CTRL_PKCS7_ENCRYPT	3
1107 #define EVP_PKEY_CTRL_PKCS7_DECRYPT	4
1108 
1109 #define EVP_PKEY_CTRL_PKCS7_SIGN	5
1110 
1111 #define EVP_PKEY_CTRL_SET_MAC_KEY	6
1112 
1113 #define EVP_PKEY_CTRL_DIGESTINIT	7
1114 
1115 /* Used by GOST key encryption in TLS */
1116 #define EVP_PKEY_CTRL_SET_IV 		8
1117 
1118 #define EVP_PKEY_CTRL_CMS_ENCRYPT	9
1119 #define EVP_PKEY_CTRL_CMS_DECRYPT	10
1120 #define EVP_PKEY_CTRL_CMS_SIGN		11
1121 
1122 #define EVP_PKEY_CTRL_CIPHER		12
1123 
1124 #define EVP_PKEY_CTRL_GET_MD		13
1125 
1126 #define EVP_PKEY_ALG_CTRL		0x1000
1127 
1128 
1129 #define EVP_PKEY_FLAG_AUTOARGLEN	2
1130 /* Method handles all operations: don't assume any digest related
1131  * defaults.
1132  */
1133 #define EVP_PKEY_FLAG_SIGCTX_CUSTOM	4
1134 
1135 const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type);
1136 EVP_PKEY_METHOD* EVP_PKEY_meth_new(int id, int flags);
1137 void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
1138     const EVP_PKEY_METHOD *meth);
1139 void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src);
1140 void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth);
1141 int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth);
1142 
1143 EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e);
1144 EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e);
1145 EVP_PKEY_CTX *EVP_PKEY_CTX_dup(EVP_PKEY_CTX *ctx);
1146 void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx);
1147 
1148 int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype, int cmd,
1149     int p1, void *p2);
1150 int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx, const char *type,
1151     const char *value);
1152 
1153 int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx);
1154 void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen);
1155 
1156 EVP_PKEY *EVP_PKEY_new_mac_key(int type, ENGINE *e, const unsigned char *key,
1157     int keylen);
1158 EVP_PKEY *EVP_PKEY_new_CMAC_key(ENGINE *e, const unsigned char *priv,
1159     size_t len, const EVP_CIPHER *cipher);
1160 
1161 void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data);
1162 void *EVP_PKEY_CTX_get_data(EVP_PKEY_CTX *ctx);
1163 EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx);
1164 
1165 EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx);
1166 
1167 void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data);
1168 void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx);
1169 
1170 int EVP_PKEY_sign_init(EVP_PKEY_CTX *ctx);
1171 int EVP_PKEY_sign(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
1172     const unsigned char *tbs, size_t tbslen);
1173 int EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx);
1174 int EVP_PKEY_verify(EVP_PKEY_CTX *ctx, const unsigned char *sig, size_t siglen,
1175     const unsigned char *tbs, size_t tbslen);
1176 int EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx);
1177 int EVP_PKEY_verify_recover(EVP_PKEY_CTX *ctx, unsigned char *rout,
1178     size_t *routlen, const unsigned char *sig, size_t siglen);
1179 int EVP_PKEY_encrypt_init(EVP_PKEY_CTX *ctx);
1180 int EVP_PKEY_encrypt(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
1181     const unsigned char *in, size_t inlen);
1182 int EVP_PKEY_decrypt_init(EVP_PKEY_CTX *ctx);
1183 int EVP_PKEY_decrypt(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
1184     const unsigned char *in, size_t inlen);
1185 
1186 int EVP_PKEY_derive_init(EVP_PKEY_CTX *ctx);
1187 int EVP_PKEY_derive_set_peer(EVP_PKEY_CTX *ctx, EVP_PKEY *peer);
1188 int EVP_PKEY_derive(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
1189 
1190 typedef int EVP_PKEY_gen_cb(EVP_PKEY_CTX *ctx);
1191 
1192 int EVP_PKEY_paramgen_init(EVP_PKEY_CTX *ctx);
1193 int EVP_PKEY_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey);
1194 int EVP_PKEY_keygen_init(EVP_PKEY_CTX *ctx);
1195 int EVP_PKEY_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey);
1196 
1197 void EVP_PKEY_CTX_set_cb(EVP_PKEY_CTX *ctx, EVP_PKEY_gen_cb *cb);
1198 EVP_PKEY_gen_cb *EVP_PKEY_CTX_get_cb(EVP_PKEY_CTX *ctx);
1199 
1200 int EVP_PKEY_CTX_get_keygen_info(EVP_PKEY_CTX *ctx, int idx);
1201 
1202 void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
1203     int (*init)(EVP_PKEY_CTX *ctx));
1204 
1205 void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
1206     int (*copy)(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src));
1207 
1208 void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
1209     void (*cleanup)(EVP_PKEY_CTX *ctx));
1210 
1211 void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
1212     int (*paramgen_init)(EVP_PKEY_CTX *ctx),
1213     int (*paramgen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey));
1214 
1215 void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
1216     int (*keygen_init)(EVP_PKEY_CTX *ctx),
1217     int (*keygen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey));
1218 
1219 void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
1220     int (*sign_init)(EVP_PKEY_CTX *ctx),
1221     int (*sign)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
1222     const unsigned char *tbs, size_t tbslen));
1223 
1224 void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
1225     int (*verify_init)(EVP_PKEY_CTX *ctx),
1226     int (*verify)(EVP_PKEY_CTX *ctx, const unsigned char *sig, size_t siglen,
1227     const unsigned char *tbs, size_t tbslen));
1228 
1229 void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
1230     int (*verify_recover_init)(EVP_PKEY_CTX *ctx),
1231     int (*verify_recover)(EVP_PKEY_CTX *ctx, unsigned char *sig,
1232     size_t *siglen, const unsigned char *tbs, size_t tbslen));
1233 
1234 void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
1235     int (*signctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx),
1236     int (*signctx)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
1237     EVP_MD_CTX *mctx));
1238 
1239 void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
1240     int (*verifyctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx),
1241     int (*verifyctx)(EVP_PKEY_CTX *ctx, const unsigned char *sig, int siglen,
1242     EVP_MD_CTX *mctx));
1243 
1244 void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
1245     int (*encrypt_init)(EVP_PKEY_CTX *ctx),
1246     int (*encryptfn)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
1247     const unsigned char *in, size_t inlen));
1248 
1249 void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
1250     int (*decrypt_init)(EVP_PKEY_CTX *ctx),
1251     int (*decrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
1252     const unsigned char *in, size_t inlen));
1253 
1254 void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
1255     int (*derive_init)(EVP_PKEY_CTX *ctx),
1256     int (*derive)(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen));
1257 
1258 void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
1259     int (*ctrl)(EVP_PKEY_CTX *ctx, int type, int p1, void *p2),
1260     int (*ctrl_str)(EVP_PKEY_CTX *ctx, const char *type, const char *value));
1261 
1262 /* Authenticated Encryption with Additional Data.
1263  *
1264  * AEAD couples confidentiality and integrity in a single primtive. AEAD
1265  * algorithms take a key and then can seal and open individual messages. Each
1266  * message has a unique, per-message nonce and, optionally, additional data
1267  * which is authenticated but not included in the output. */
1268 
1269 struct evp_aead_st;
1270 typedef struct evp_aead_st EVP_AEAD;
1271 
1272 #ifndef OPENSSL_NO_AES
1273 /* EVP_aes_128_gcm is AES-128 in Galois Counter Mode. */
1274 const EVP_AEAD *EVP_aead_aes_128_gcm(void);
1275 /* EVP_aes_256_gcm is AES-256 in Galois Counter Mode. */
1276 const EVP_AEAD *EVP_aead_aes_256_gcm(void);
1277 #endif
1278 
1279 #if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
1280 /* EVP_aead_chacha20_poly1305 is ChaCha20 with a Poly1305 authenticator. */
1281 const EVP_AEAD *EVP_aead_chacha20_poly1305(void);
1282 /* EVP_aead_xchacha20_poly1305 is XChaCha20 with a Poly1305 authenticator. */
1283 const EVP_AEAD *EVP_aead_xchacha20_poly1305(void);
1284 #endif
1285 
1286 /* EVP_AEAD_key_length returns the length of the keys used. */
1287 size_t EVP_AEAD_key_length(const EVP_AEAD *aead);
1288 
1289 /* EVP_AEAD_nonce_length returns the length of the per-message nonce. */
1290 size_t EVP_AEAD_nonce_length(const EVP_AEAD *aead);
1291 
1292 /* EVP_AEAD_max_overhead returns the maximum number of additional bytes added
1293  * by the act of sealing data with the AEAD. */
1294 size_t EVP_AEAD_max_overhead(const EVP_AEAD *aead);
1295 
1296 /* EVP_AEAD_max_tag_len returns the maximum tag length when using this AEAD.
1297  * This * is the largest value that can be passed as a tag length to
1298  * EVP_AEAD_CTX_init. */
1299 size_t EVP_AEAD_max_tag_len(const EVP_AEAD *aead);
1300 
1301 /* An EVP_AEAD_CTX represents an AEAD algorithm configured with a specific key
1302  * and message-independent IV. */
1303 typedef struct evp_aead_ctx_st {
1304 	const EVP_AEAD *aead;
1305 	/* aead_state is an opaque pointer to the AEAD specific state. */
1306 	void *aead_state;
1307 } EVP_AEAD_CTX;
1308 
1309 /* EVP_AEAD_MAX_TAG_LENGTH is the maximum tag length used by any AEAD
1310  * defined in this header. */
1311 #define EVP_AEAD_MAX_TAG_LENGTH 16
1312 
1313 /* EVP_AEAD_DEFAULT_TAG_LENGTH is a magic value that can be passed to
1314  * EVP_AEAD_CTX_init to indicate that the default tag length for an AEAD
1315  * should be used. */
1316 #define EVP_AEAD_DEFAULT_TAG_LENGTH 0
1317 
1318 /* EVP_AEAD_init initializes the context for the given AEAD algorithm.
1319  * The implementation argument may be NULL to choose the default implementation.
1320  * Authentication tags may be truncated by passing a tag length. A tag length
1321  * of zero indicates the default tag length should be used. */
1322 int EVP_AEAD_CTX_init(EVP_AEAD_CTX *ctx, const EVP_AEAD *aead,
1323     const unsigned char *key, size_t key_len, size_t tag_len, ENGINE *impl);
1324 
1325 /* EVP_AEAD_CTX_cleanup frees any data allocated for this context. */
1326 void EVP_AEAD_CTX_cleanup(EVP_AEAD_CTX *ctx);
1327 
1328 /* EVP_AEAD_CTX_seal encrypts and authenticates the input and authenticates
1329  * any additional data (AD), the result being written as output. One is
1330  * returned on success, otherwise zero.
1331  *
1332  * This function may be called (with the same EVP_AEAD_CTX) concurrently with
1333  * itself or EVP_AEAD_CTX_open.
1334  *
1335  * At most max_out_len bytes are written as output and, in order to ensure
1336  * success, this value should be the length of the input plus the result of
1337  * EVP_AEAD_overhead. On successful return, out_len is set to the actual
1338  * number of bytes written.
1339  *
1340  * The length of the nonce is must be equal to the result of
1341  * EVP_AEAD_nonce_length for this AEAD.
1342  *
1343  * EVP_AEAD_CTX_seal never results in a partial output. If max_out_len is
1344  * insufficient, zero will be returned and out_len will be set to zero.
1345  *
1346  * If the input and output are aliased then out must be <= in. */
1347 int EVP_AEAD_CTX_seal(const EVP_AEAD_CTX *ctx, unsigned char *out,
1348     size_t *out_len, size_t max_out_len, const unsigned char *nonce,
1349     size_t nonce_len, const unsigned char *in, size_t in_len,
1350     const unsigned char *ad, size_t ad_len);
1351 
1352 /* EVP_AEAD_CTX_open authenticates the input and additional data, decrypting
1353  * the input and writing it as output. One is returned on success, otherwise
1354  * zero.
1355  *
1356  * This function may be called (with the same EVP_AEAD_CTX) concurrently with
1357  * itself or EVP_AEAD_CTX_seal.
1358  *
1359  * At most the number of input bytes are written as output. In order to ensure
1360  * success, max_out_len should be at least the same as the input length. On
1361  * successful return out_len is set to the actual number of bytes written.
1362  *
1363  * The length of nonce must be equal to the result of EVP_AEAD_nonce_length
1364  * for this AEAD.
1365  *
1366  * EVP_AEAD_CTX_open never results in a partial output. If max_out_len is
1367  * insufficient, zero will be returned and out_len will be set to zero.
1368  *
1369  * If the input and output are aliased then out must be <= in. */
1370 int EVP_AEAD_CTX_open(const EVP_AEAD_CTX *ctx, unsigned char *out,
1371     size_t *out_len, size_t max_out_len, const unsigned char *nonce,
1372     size_t nonce_len, const unsigned char *in, size_t in_len,
1373     const unsigned char *ad, size_t ad_len);
1374 
1375 void EVP_add_alg_module(void);
1376 
1377 /* BEGIN ERROR CODES */
1378 /* The following lines are auto generated by the script mkerr.pl. Any changes
1379  * made after this point may be overwritten when the script is next run.
1380  */
1381 void ERR_load_EVP_strings(void);
1382 
1383 /* Error codes for the EVP functions. */
1384 
1385 /* Function codes. */
1386 #define EVP_F_AEAD_AES_GCM_INIT				 187
1387 #define EVP_F_AEAD_AES_GCM_OPEN				 188
1388 #define EVP_F_AEAD_AES_GCM_SEAL				 189
1389 #define EVP_F_AEAD_CHACHA20_POLY1305_INIT		 192
1390 #define EVP_F_AEAD_CHACHA20_POLY1305_OPEN		 193
1391 #define EVP_F_AEAD_CHACHA20_POLY1305_SEAL		 194
1392 #define EVP_F_AEAD_CTX_OPEN				 185
1393 #define EVP_F_AEAD_CTX_SEAL				 186
1394 #define EVP_F_AESNI_INIT_KEY				 165
1395 #define EVP_F_AESNI_XTS_CIPHER				 176
1396 #define EVP_F_AES_INIT_KEY				 133
1397 #define EVP_F_AES_XTS					 172
1398 #define EVP_F_AES_XTS_CIPHER				 175
1399 #define EVP_F_ALG_MODULE_INIT				 177
1400 #define EVP_F_CAMELLIA_INIT_KEY				 159
1401 #define EVP_F_CMAC_INIT					 173
1402 #define EVP_F_D2I_PKEY					 100
1403 #define EVP_F_DO_SIGVER_INIT				 161
1404 #define EVP_F_DSAPKEY2PKCS8				 134
1405 #define EVP_F_DSA_PKEY2PKCS8				 135
1406 #define EVP_F_ECDSA_PKEY2PKCS8				 129
1407 #define EVP_F_ECKEY_PKEY2PKCS8				 132
1408 #define EVP_F_EVP_AEAD_CTX_INIT				 180
1409 #define EVP_F_EVP_AEAD_CTX_OPEN				 190
1410 #define EVP_F_EVP_AEAD_CTX_SEAL				 191
1411 #define EVP_F_EVP_BYTESTOKEY				 200
1412 #define EVP_F_EVP_CIPHERINIT_EX				 123
1413 #define EVP_F_EVP_CIPHER_CTX_COPY			 163
1414 #define EVP_F_EVP_CIPHER_CTX_CTRL			 124
1415 #define EVP_F_EVP_CIPHER_CTX_SET_KEY_LENGTH		 122
1416 #define EVP_F_EVP_CIPHER_GET_ASN1_IV			 201
1417 #define EVP_F_EVP_CIPHER_SET_ASN1_IV			 202
1418 #define EVP_F_EVP_DECRYPTFINAL_EX			 101
1419 #define EVP_F_EVP_DECRYPTUPDATE				 199
1420 #define EVP_F_EVP_DIGESTFINAL_EX			 196
1421 #define EVP_F_EVP_DIGESTINIT_EX				 128
1422 #define EVP_F_EVP_ENCRYPTFINAL_EX			 127
1423 #define EVP_F_EVP_ENCRYPTUPDATE				 198
1424 #define EVP_F_EVP_MD_CTX_COPY_EX			 110
1425 #define EVP_F_EVP_MD_CTX_CTRL				 195
1426 #define EVP_F_EVP_MD_SIZE				 162
1427 #define EVP_F_EVP_OPENINIT				 102
1428 #define EVP_F_EVP_PBE_ALG_ADD				 115
1429 #define EVP_F_EVP_PBE_ALG_ADD_TYPE			 160
1430 #define EVP_F_EVP_PBE_CIPHERINIT			 116
1431 #define EVP_F_EVP_PKCS82PKEY				 111
1432 #define EVP_F_EVP_PKCS82PKEY_BROKEN			 136
1433 #define EVP_F_EVP_PKEY2PKCS8_BROKEN			 113
1434 #define EVP_F_EVP_PKEY_COPY_PARAMETERS			 103
1435 #define EVP_F_EVP_PKEY_CTX_CTRL				 137
1436 #define EVP_F_EVP_PKEY_CTX_CTRL_STR			 150
1437 #define EVP_F_EVP_PKEY_CTX_DUP				 156
1438 #define EVP_F_EVP_PKEY_DECRYPT				 104
1439 #define EVP_F_EVP_PKEY_DECRYPT_INIT			 138
1440 #define EVP_F_EVP_PKEY_DECRYPT_OLD			 151
1441 #define EVP_F_EVP_PKEY_DERIVE				 153
1442 #define EVP_F_EVP_PKEY_DERIVE_INIT			 154
1443 #define EVP_F_EVP_PKEY_DERIVE_SET_PEER			 155
1444 #define EVP_F_EVP_PKEY_ENCRYPT				 105
1445 #define EVP_F_EVP_PKEY_ENCRYPT_INIT			 139
1446 #define EVP_F_EVP_PKEY_ENCRYPT_OLD			 152
1447 #define EVP_F_EVP_PKEY_GET1_DH				 119
1448 #define EVP_F_EVP_PKEY_GET1_DSA				 120
1449 #define EVP_F_EVP_PKEY_GET1_ECDSA			 130
1450 #define EVP_F_EVP_PKEY_GET1_EC_KEY			 131
1451 #define EVP_F_EVP_PKEY_GET1_RSA				 121
1452 #define EVP_F_EVP_PKEY_KEYGEN				 146
1453 #define EVP_F_EVP_PKEY_KEYGEN_INIT			 147
1454 #define EVP_F_EVP_PKEY_NEW				 106
1455 #define EVP_F_EVP_PKEY_PARAMGEN				 148
1456 #define EVP_F_EVP_PKEY_PARAMGEN_INIT			 149
1457 #define EVP_F_EVP_PKEY_SIGN				 140
1458 #define EVP_F_EVP_PKEY_SIGN_INIT			 141
1459 #define EVP_F_EVP_PKEY_VERIFY				 142
1460 #define EVP_F_EVP_PKEY_VERIFY_INIT			 143
1461 #define EVP_F_EVP_PKEY_VERIFY_RECOVER			 144
1462 #define EVP_F_EVP_PKEY_VERIFY_RECOVER_INIT		 145
1463 #define EVP_F_EVP_RIJNDAEL				 126
1464 #define EVP_F_EVP_SIGNFINAL				 107
1465 #define EVP_F_EVP_VERIFYFINAL				 108
1466 #define EVP_F_FIPS_CIPHERINIT				 166
1467 #define EVP_F_FIPS_CIPHER_CTX_COPY			 170
1468 #define EVP_F_FIPS_CIPHER_CTX_CTRL			 167
1469 #define EVP_F_FIPS_CIPHER_CTX_SET_KEY_LENGTH		 171
1470 #define EVP_F_FIPS_DIGESTINIT				 168
1471 #define EVP_F_FIPS_MD_CTX_COPY				 169
1472 #define EVP_F_HMAC_INIT_EX				 174
1473 #define EVP_F_INT_CTX_NEW				 157
1474 #define EVP_F_PKCS5_PBE_KEYIVGEN			 117
1475 #define EVP_F_PKCS5_V2_PBE_KEYIVGEN			 118
1476 #define EVP_F_PKCS5_V2_PBKDF2_KEYIVGEN			 164
1477 #define EVP_F_PKCS8_SET_BROKEN				 112
1478 #define EVP_F_PKEY_SET_TYPE				 158
1479 #define EVP_F_RC2_GET_ASN1_TYPE_AND_IV			 197
1480 #define EVP_F_RC2_MAGIC_TO_METH				 109
1481 #define EVP_F_RC5_CTRL					 125
1482 
1483 /* Reason codes. */
1484 #define EVP_R_AES_IV_SETUP_FAILED			 162
1485 #define EVP_R_AES_KEY_SETUP_FAILED			 143
1486 #define EVP_R_ASN1_LIB					 140
1487 #define EVP_R_BAD_BLOCK_LENGTH				 136
1488 #define EVP_R_BAD_DECRYPT				 100
1489 #define EVP_R_BAD_KEY_LENGTH				 137
1490 #define EVP_R_BN_DECODE_ERROR				 112
1491 #define EVP_R_BN_PUBKEY_ERROR				 113
1492 #define EVP_R_BUFFER_TOO_SMALL				 155
1493 #define EVP_R_CAMELLIA_KEY_SETUP_FAILED			 157
1494 #define EVP_R_CIPHER_PARAMETER_ERROR			 122
1495 #define EVP_R_COMMAND_NOT_SUPPORTED			 147
1496 #define EVP_R_CTRL_NOT_IMPLEMENTED			 132
1497 #define EVP_R_CTRL_OPERATION_NOT_IMPLEMENTED		 133
1498 #define EVP_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH		 138
1499 #define EVP_R_DECODE_ERROR				 114
1500 #define EVP_R_DIFFERENT_KEY_TYPES			 101
1501 #define EVP_R_DIFFERENT_PARAMETERS			 153
1502 #define EVP_R_DISABLED_FOR_FIPS				 163
1503 #define EVP_R_ENCODE_ERROR				 115
1504 #define EVP_R_ERROR_LOADING_SECTION			 165
1505 #define EVP_R_ERROR_SETTING_FIPS_MODE			 166
1506 #define EVP_R_EVP_PBE_CIPHERINIT_ERROR			 119
1507 #define EVP_R_EXPECTING_AN_HMAC_KEY			 174
1508 #define EVP_R_EXPECTING_AN_RSA_KEY			 127
1509 #define EVP_R_EXPECTING_A_DH_KEY			 128
1510 #define EVP_R_EXPECTING_A_DSA_KEY			 129
1511 #define EVP_R_EXPECTING_A_ECDSA_KEY			 141
1512 #define EVP_R_EXPECTING_A_EC_KEY			 142
1513 #define EVP_R_FIPS_MODE_NOT_SUPPORTED			 167
1514 #define EVP_R_INITIALIZATION_ERROR			 134
1515 #define EVP_R_INPUT_NOT_INITIALIZED			 111
1516 #define EVP_R_INVALID_DIGEST				 152
1517 #define EVP_R_INVALID_FIPS_MODE				 168
1518 #define EVP_R_INVALID_IV_LENGTH				 194
1519 #define EVP_R_INVALID_KEY_LENGTH			 130
1520 #define EVP_R_INVALID_OPERATION				 148
1521 #define EVP_R_IV_TOO_LARGE				 102
1522 #define EVP_R_KEYGEN_FAILURE				 120
1523 #define EVP_R_KEY_SETUP_FAILED				 180
1524 #define EVP_R_MESSAGE_DIGEST_IS_NULL			 159
1525 #define EVP_R_METHOD_NOT_SUPPORTED			 144
1526 #define EVP_R_MISSING_PARAMETERS			 103
1527 #define EVP_R_NO_CIPHER_SET				 131
1528 #define EVP_R_NO_DEFAULT_DIGEST				 158
1529 #define EVP_R_NO_DIGEST_SET				 139
1530 #define EVP_R_NO_DSA_PARAMETERS				 116
1531 #define EVP_R_NO_KEY_SET				 154
1532 #define EVP_R_NO_OPERATION_SET				 149
1533 #define EVP_R_NO_SIGN_FUNCTION_CONFIGURED		 104
1534 #define EVP_R_NO_VERIFY_FUNCTION_CONFIGURED		 105
1535 #define EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE	 150
1536 #define EVP_R_OPERATON_NOT_INITIALIZED			 151
1537 #define EVP_R_OUTPUT_ALIASES_INPUT			 172
1538 #define EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE			 117
1539 #define EVP_R_PRIVATE_KEY_DECODE_ERROR			 145
1540 #define EVP_R_PRIVATE_KEY_ENCODE_ERROR			 146
1541 #define EVP_R_PUBLIC_KEY_NOT_RSA			 106
1542 #define EVP_R_TAG_TOO_LARGE				 171
1543 #define EVP_R_TOO_LARGE					 164
1544 #define EVP_R_UNKNOWN_CIPHER				 160
1545 #define EVP_R_UNKNOWN_DIGEST				 161
1546 #define EVP_R_UNKNOWN_OPTION				 169
1547 #define EVP_R_UNKNOWN_PBE_ALGORITHM			 121
1548 #define EVP_R_UNSUPORTED_NUMBER_OF_ROUNDS		 135
1549 #define EVP_R_UNSUPPORTED_ALGORITHM			 156
1550 #define EVP_R_UNSUPPORTED_CIPHER			 107
1551 #define EVP_R_UNSUPPORTED_KEYLENGTH			 123
1552 #define EVP_R_UNSUPPORTED_KEY_DERIVATION_FUNCTION	 124
1553 #define EVP_R_UNSUPPORTED_KEY_SIZE			 108
1554 #define EVP_R_UNSUPPORTED_PRF				 125
1555 #define EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM		 118
1556 #define EVP_R_WRAP_MODE_NOT_ALLOWED			 170
1557 #define EVP_R_UNSUPPORTED_SALT_TYPE			 126
1558 #define EVP_R_WRONG_FINAL_BLOCK_LENGTH			 109
1559 #define EVP_R_WRONG_PUBLIC_KEY_TYPE			 110
1560 
1561 #ifdef  __cplusplus
1562 }
1563 #endif
1564 #endif
1565