1 /* $OpenBSD: evp.h,v 1.75 2019/03/17 18:17:44 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_RSA2	NID_rsa
103 #define EVP_PKEY_DSA	NID_dsa
104 #define EVP_PKEY_DSA1	NID_dsa_2
105 #define EVP_PKEY_DSA2	NID_dsaWithSHA
106 #define EVP_PKEY_DSA3	NID_dsaWithSHA1
107 #define EVP_PKEY_DSA4	NID_dsaWithSHA1_2
108 #define EVP_PKEY_DH	NID_dhKeyAgreement
109 #define EVP_PKEY_EC	NID_X9_62_id_ecPublicKey
110 #define EVP_PKEY_GOSTR01 NID_id_GostR3410_2001
111 #define EVP_PKEY_GOSTIMIT NID_id_Gost28147_89_MAC
112 #define EVP_PKEY_HMAC	NID_hmac
113 #define EVP_PKEY_CMAC	NID_cmac
114 #define EVP_PKEY_GOSTR12_256 NID_id_tc26_gost3410_2012_256
115 #define EVP_PKEY_GOSTR12_512 NID_id_tc26_gost3410_2012_512
116 
117 #ifdef	__cplusplus
118 extern "C" {
119 #endif
120 
121 /* Type needs to be a bit field
122  * Sub-type needs to be for variations on the method, as in, can it do
123  * arbitrary encryption.... */
124 struct evp_pkey_st {
125 	int type;
126 	int save_type;
127 	int references;
128 	const EVP_PKEY_ASN1_METHOD *ameth;
129 	ENGINE *engine;
130 	union	{
131 		char *ptr;
132 #ifndef OPENSSL_NO_RSA
133 		struct rsa_st *rsa;	/* RSA */
134 #endif
135 #ifndef OPENSSL_NO_DSA
136 		struct dsa_st *dsa;	/* DSA */
137 #endif
138 #ifndef OPENSSL_NO_DH
139 		struct dh_st *dh;	/* DH */
140 #endif
141 #ifndef OPENSSL_NO_EC
142 		struct ec_key_st *ec;	/* ECC */
143 #endif
144 #ifndef OPENSSL_NO_GOST
145 		struct gost_key_st *gost; /* GOST */
146 #endif
147 	} pkey;
148 	int save_parameters;
149 	STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
150 } /* EVP_PKEY */;
151 
152 #define EVP_PKEY_MO_SIGN	0x0001
153 #define EVP_PKEY_MO_VERIFY	0x0002
154 #define EVP_PKEY_MO_ENCRYPT	0x0004
155 #define EVP_PKEY_MO_DECRYPT	0x0008
156 
157 typedef int evp_sign_method(int type, const unsigned char *m,
158     unsigned int m_length, unsigned char *sigret, unsigned int *siglen,
159     void *key);
160 typedef int evp_verify_method(int type, const unsigned char *m,
161     unsigned int m_length, const unsigned char *sigbuf, unsigned int siglen,
162     void *key);
163 
164 #ifndef EVP_MD
165 struct env_md_st {
166 	int type;
167 	int pkey_type;
168 	int md_size;
169 	unsigned long flags;
170 	int (*init)(EVP_MD_CTX *ctx);
171 	int (*update)(EVP_MD_CTX *ctx, const void *data, size_t count);
172 	int (*final)(EVP_MD_CTX *ctx, unsigned char *md);
173 	int (*copy)(EVP_MD_CTX *to, const EVP_MD_CTX *from);
174 	int (*cleanup)(EVP_MD_CTX *ctx);
175 
176 	evp_sign_method *sign;
177 	evp_verify_method *verify;
178 	int required_pkey_type[5]; /*EVP_PKEY_xxx */
179 	int block_size;
180 	int ctx_size; /* how big does the ctx->md_data need to be */
181 	/* control function */
182 	int (*md_ctrl)(EVP_MD_CTX *ctx, int cmd, int p1, void *p2);
183 } /* EVP_MD */;
184 
185 #define EVP_MD_FLAG_ONESHOT	0x0001 /* digest can only handle a single
186 					* block */
187 
188 #define EVP_MD_FLAG_PKEY_DIGEST	0x0002 /* digest is a "clone" digest used
189 					* which is a copy of an existing
190 					* one for a specific public key type.
191 					* EVP_dss1() etc */
192 
193 /* Digest uses EVP_PKEY_METHOD for signing instead of MD specific signing */
194 
195 #define EVP_MD_FLAG_PKEY_METHOD_SIGNATURE	0x0004
196 
197 /* DigestAlgorithmIdentifier flags... */
198 
199 #define EVP_MD_FLAG_DIGALGID_MASK		0x0018
200 
201 /* NULL or absent parameter accepted. Use NULL */
202 
203 #define EVP_MD_FLAG_DIGALGID_NULL		0x0000
204 
205 /* NULL or absent parameter accepted. Use NULL for PKCS#1 otherwise absent */
206 
207 #define EVP_MD_FLAG_DIGALGID_ABSENT		0x0008
208 
209 /* Custom handling via ctrl */
210 
211 #define EVP_MD_FLAG_DIGALGID_CUSTOM		0x0018
212 
213 #define EVP_MD_FLAG_FIPS	0x0400 /* Note if suitable for use in FIPS mode */
214 
215 /* Digest ctrls */
216 
217 #define	EVP_MD_CTRL_DIGALGID			0x1
218 #define	EVP_MD_CTRL_MICALG			0x2
219 #define	EVP_MD_CTRL_SET_KEY			0x3
220 #define	EVP_MD_CTRL_GOST_SET_SBOX		0x4
221 
222 /* Minimum Algorithm specific ctrl value */
223 
224 #define	EVP_MD_CTRL_ALG_CTRL			0x1000
225 
226 #define EVP_PKEY_NULL_method	NULL,NULL,{0,0,0,0}
227 
228 #ifndef OPENSSL_NO_DSA
229 #define EVP_PKEY_DSA_method	(evp_sign_method *)DSA_sign, \
230 				(evp_verify_method *)DSA_verify, \
231 				{EVP_PKEY_DSA,EVP_PKEY_DSA2,EVP_PKEY_DSA3, \
232 					EVP_PKEY_DSA4,0}
233 #else
234 #define EVP_PKEY_DSA_method	EVP_PKEY_NULL_method
235 #endif
236 
237 #ifndef OPENSSL_NO_ECDSA
238 #define EVP_PKEY_ECDSA_method   (evp_sign_method *)ECDSA_sign, \
239 				(evp_verify_method *)ECDSA_verify, \
240                                  {EVP_PKEY_EC,0,0,0}
241 #else
242 #define EVP_PKEY_ECDSA_method   EVP_PKEY_NULL_method
243 #endif
244 
245 #ifndef OPENSSL_NO_RSA
246 #define EVP_PKEY_RSA_method	(evp_sign_method *)RSA_sign, \
247 				(evp_verify_method *)RSA_verify, \
248 				{EVP_PKEY_RSA,EVP_PKEY_RSA2,0,0}
249 #define EVP_PKEY_RSA_ASN1_OCTET_STRING_method \
250 				(evp_sign_method *)RSA_sign_ASN1_OCTET_STRING, \
251 				(evp_verify_method *)RSA_verify_ASN1_OCTET_STRING, \
252 				{EVP_PKEY_RSA,EVP_PKEY_RSA2,0,0}
253 #else
254 #define EVP_PKEY_RSA_method	EVP_PKEY_NULL_method
255 #define EVP_PKEY_RSA_ASN1_OCTET_STRING_method EVP_PKEY_NULL_method
256 #endif
257 
258 #endif /* !EVP_MD */
259 
260 struct env_md_ctx_st {
261 	const EVP_MD *digest;
262 	ENGINE *engine; /* functional reference if 'digest' is ENGINE-provided */
263 	unsigned long flags;
264 	void *md_data;
265 	/* Public key context for sign/verify */
266 	EVP_PKEY_CTX *pctx;
267 	/* Update function: usually copied from EVP_MD */
268 	int (*update)(EVP_MD_CTX *ctx, const void *data, size_t count);
269 } /* EVP_MD_CTX */;
270 
271 /* values for EVP_MD_CTX flags */
272 
273 #define EVP_MD_CTX_FLAG_ONESHOT		0x0001 /* digest update will be called
274 						* once only */
275 #define EVP_MD_CTX_FLAG_CLEANED		0x0002 /* context has already been
276 						* cleaned */
277 #define EVP_MD_CTX_FLAG_REUSE		0x0004 /* Don't free up ctx->md_data
278 						* in EVP_MD_CTX_cleanup */
279 /* FIPS and pad options are ignored in 1.0.0, definitions are here
280  * so we don't accidentally reuse the values for other purposes.
281  */
282 
283 #define EVP_MD_CTX_FLAG_NON_FIPS_ALLOW	0x0008	/* Allow use of non FIPS digest
284 						 * in FIPS mode */
285 
286 /* The following PAD options are also currently ignored in 1.0.0, digest
287  * parameters are handled through EVP_DigestSign*() and EVP_DigestVerify*()
288  * instead.
289  */
290 #define EVP_MD_CTX_FLAG_PAD_MASK	0xF0	/* RSA mode to use */
291 #define EVP_MD_CTX_FLAG_PAD_PKCS1	0x00	/* PKCS#1 v1.5 mode */
292 #define EVP_MD_CTX_FLAG_PAD_X931	0x10	/* X9.31 mode */
293 #define EVP_MD_CTX_FLAG_PAD_PSS		0x20	/* PSS mode */
294 
295 #define EVP_MD_CTX_FLAG_NO_INIT		0x0100 /* Don't initialize md_data */
296 
297 struct evp_cipher_st {
298 	int nid;
299 	int block_size;
300 	int key_len;		/* Default value for variable length ciphers */
301 	int iv_len;
302 	unsigned long flags;	/* Various flags */
303 	int (*init)(EVP_CIPHER_CTX *ctx, const unsigned char *key,
304 	    const unsigned char *iv, int enc);	/* init key */
305 	int (*do_cipher)(EVP_CIPHER_CTX *ctx, unsigned char *out,
306 	    const unsigned char *in, size_t inl);/* encrypt/decrypt data */
307 	int (*cleanup)(EVP_CIPHER_CTX *); /* cleanup ctx */
308 	int ctx_size;		/* how big ctx->cipher_data needs to be */
309 	int (*set_asn1_parameters)(EVP_CIPHER_CTX *, ASN1_TYPE *); /* Populate a ASN1_TYPE with parameters */
310 	int (*get_asn1_parameters)(EVP_CIPHER_CTX *, ASN1_TYPE *); /* Get parameters from a ASN1_TYPE */
311 	int (*ctrl)(EVP_CIPHER_CTX *, int type, int arg, void *ptr); /* Miscellaneous operations */
312 	void *app_data;		/* Application data */
313 } /* EVP_CIPHER */;
314 
315 /* Values for cipher flags */
316 
317 /* Modes for ciphers */
318 
319 #define		EVP_CIPH_STREAM_CIPHER		0x0
320 #define		EVP_CIPH_ECB_MODE		0x1
321 #define		EVP_CIPH_CBC_MODE		0x2
322 #define		EVP_CIPH_CFB_MODE		0x3
323 #define		EVP_CIPH_OFB_MODE		0x4
324 #define		EVP_CIPH_CTR_MODE		0x5
325 #define		EVP_CIPH_GCM_MODE		0x6
326 #define		EVP_CIPH_CCM_MODE		0x7
327 #define		EVP_CIPH_XTS_MODE		0x10001
328 #define		EVP_CIPH_WRAP_MODE		0x10002
329 #define 	EVP_CIPH_MODE			0xF0007
330 /* Set if variable length cipher */
331 #define 	EVP_CIPH_VARIABLE_LENGTH	0x8
332 /* Set if the iv handling should be done by the cipher itself */
333 #define 	EVP_CIPH_CUSTOM_IV		0x10
334 /* Set if the cipher's init() function should be called if key is NULL */
335 #define 	EVP_CIPH_ALWAYS_CALL_INIT	0x20
336 /* Call ctrl() to init cipher parameters */
337 #define 	EVP_CIPH_CTRL_INIT		0x40
338 /* Don't use standard key length function */
339 #define 	EVP_CIPH_CUSTOM_KEY_LENGTH	0x80
340 /* Don't use standard block padding */
341 #define 	EVP_CIPH_NO_PADDING		0x100
342 /* cipher handles random key generation */
343 #define 	EVP_CIPH_RAND_KEY		0x200
344 /* cipher has its own additional copying logic */
345 #define 	EVP_CIPH_CUSTOM_COPY		0x400
346 /* Allow use default ASN1 get/set iv */
347 #define		EVP_CIPH_FLAG_DEFAULT_ASN1	0x1000
348 /* Buffer length in bits not bytes: CFB1 mode only */
349 #define		EVP_CIPH_FLAG_LENGTH_BITS	0x2000
350 /* Note if suitable for use in FIPS mode */
351 #define		EVP_CIPH_FLAG_FIPS		0x4000
352 /* Allow non FIPS cipher in FIPS mode */
353 #define		EVP_CIPH_FLAG_NON_FIPS_ALLOW	0x8000
354 /* Cipher handles any and all padding logic as well
355  * as finalisation.
356  */
357 #define 	EVP_CIPH_FLAG_CUSTOM_CIPHER	0x100000
358 #define		EVP_CIPH_FLAG_AEAD_CIPHER	0x200000
359 
360 /*
361  * Cipher context flag to indicate that we can handle wrap mode: if allowed in
362  * older applications, it could overflow buffers.
363  */
364 #define		EVP_CIPHER_CTX_FLAG_WRAP_ALLOW	0x1
365 
366 /* ctrl() values */
367 
368 #define		EVP_CTRL_INIT			0x0
369 #define 	EVP_CTRL_SET_KEY_LENGTH		0x1
370 #define 	EVP_CTRL_GET_RC2_KEY_BITS	0x2
371 #define 	EVP_CTRL_SET_RC2_KEY_BITS	0x3
372 #define 	EVP_CTRL_GET_RC5_ROUNDS		0x4
373 #define 	EVP_CTRL_SET_RC5_ROUNDS		0x5
374 #define 	EVP_CTRL_RAND_KEY		0x6
375 #define 	EVP_CTRL_PBE_PRF_NID		0x7
376 #define 	EVP_CTRL_COPY			0x8
377 #define 	EVP_CTRL_GCM_SET_IVLEN		0x9
378 #define 	EVP_CTRL_GCM_GET_TAG		0x10
379 #define 	EVP_CTRL_GCM_SET_TAG		0x11
380 #define		EVP_CTRL_GCM_SET_IV_FIXED	0x12
381 #define		EVP_CTRL_GCM_IV_GEN		0x13
382 #define		EVP_CTRL_CCM_SET_IVLEN		EVP_CTRL_GCM_SET_IVLEN
383 #define		EVP_CTRL_CCM_GET_TAG		EVP_CTRL_GCM_GET_TAG
384 #define		EVP_CTRL_CCM_SET_TAG		EVP_CTRL_GCM_SET_TAG
385 #define		EVP_CTRL_CCM_SET_L		0x14
386 #define		EVP_CTRL_CCM_SET_MSGLEN		0x15
387 /* AEAD cipher deduces payload length and returns number of bytes
388  * required to store MAC and eventual padding. Subsequent call to
389  * EVP_Cipher even appends/verifies MAC.
390  */
391 #define		EVP_CTRL_AEAD_TLS1_AAD		0x16
392 /* Used by composite AEAD ciphers, no-op in GCM, CCM... */
393 #define		EVP_CTRL_AEAD_SET_MAC_KEY	0x17
394 /* Set the GCM invocation field, decrypt only */
395 #define		EVP_CTRL_GCM_SET_IV_INV		0x18
396 /* Set the S-BOX NID for GOST ciphers */
397 #define		EVP_CTRL_GOST_SET_SBOX		0x19
398 
399 /* GCM TLS constants */
400 /* Length of fixed part of IV derived from PRF */
401 #define EVP_GCM_TLS_FIXED_IV_LEN			4
402 /* Length of explicit part of IV part of TLS records */
403 #define EVP_GCM_TLS_EXPLICIT_IV_LEN			8
404 /* Length of tag for TLS */
405 #define EVP_GCM_TLS_TAG_LEN				16
406 
407 typedef struct evp_cipher_info_st {
408 	const EVP_CIPHER *cipher;
409 	unsigned char iv[EVP_MAX_IV_LENGTH];
410 } EVP_CIPHER_INFO;
411 
412 struct evp_cipher_ctx_st {
413 	const EVP_CIPHER *cipher;
414 	ENGINE *engine;	/* functional reference if 'cipher' is ENGINE-provided */
415 	int encrypt;		/* encrypt or decrypt */
416 	int buf_len;		/* number we have left */
417 
418 	unsigned char  oiv[EVP_MAX_IV_LENGTH];	/* original iv */
419 	unsigned char  iv[EVP_MAX_IV_LENGTH];	/* working iv */
420 	unsigned char buf[EVP_MAX_BLOCK_LENGTH];/* saved partial block */
421 	int num;				/* used by cfb/ofb/ctr mode */
422 
423 	void *app_data;		/* application stuff */
424 	int key_len;		/* May change for variable length cipher */
425 	unsigned long flags;	/* Various flags */
426 	void *cipher_data; /* per EVP data */
427 	int final_used;
428 	int block_mask;
429 	unsigned char final[EVP_MAX_BLOCK_LENGTH];/* possible final block */
430 } /* EVP_CIPHER_CTX */;
431 
432 typedef struct evp_Encode_Ctx_st {
433 	int num;	/* number saved in a partial encode/decode */
434 	int length;	/* The length is either the output line length
435 			 * (in input bytes) or the shortest input line
436 			 * length that is ok.  Once decoding begins,
437 			 * the length is adjusted up each time a longer
438 			 * line is decoded */
439 	unsigned char enc_data[80];	/* data to encode */
440 	int line_num;	/* number read on current line */
441 	int expect_nl;
442 } EVP_ENCODE_CTX;
443 
444 /* Password based encryption function */
445 typedef int (EVP_PBE_KEYGEN)(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
446     ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md, int en_de);
447 
448 #ifndef OPENSSL_NO_RSA
449 #define EVP_PKEY_assign_RSA(pkey,rsa) EVP_PKEY_assign((pkey),EVP_PKEY_RSA,\
450 					(char *)(rsa))
451 #endif
452 
453 #ifndef OPENSSL_NO_DSA
454 #define EVP_PKEY_assign_DSA(pkey,dsa) EVP_PKEY_assign((pkey),EVP_PKEY_DSA,\
455 					(char *)(dsa))
456 #endif
457 
458 #ifndef OPENSSL_NO_DH
459 #define EVP_PKEY_assign_DH(pkey,dh) EVP_PKEY_assign((pkey),EVP_PKEY_DH,\
460 					(char *)(dh))
461 #endif
462 
463 #ifndef OPENSSL_NO_EC
464 #define EVP_PKEY_assign_EC_KEY(pkey,eckey) EVP_PKEY_assign((pkey),EVP_PKEY_EC,\
465                                         (char *)(eckey))
466 #endif
467 
468 #ifndef OPENSSL_NO_GOST
469 #define EVP_PKEY_assign_GOST(pkey,gostkey) EVP_PKEY_assign((pkey),EVP_PKEY_GOSTR01,\
470                                         (char *)(gostkey))
471 #endif
472 
473 /* Add some extra combinations */
474 #define EVP_get_digestbynid(a) EVP_get_digestbyname(OBJ_nid2sn(a))
475 #define EVP_get_digestbyobj(a) EVP_get_digestbynid(OBJ_obj2nid(a))
476 #define EVP_get_cipherbynid(a) EVP_get_cipherbyname(OBJ_nid2sn(a))
477 #define EVP_get_cipherbyobj(a) EVP_get_cipherbynid(OBJ_obj2nid(a))
478 
479 int EVP_MD_type(const EVP_MD *md);
480 #define EVP_MD_nid(e)			EVP_MD_type(e)
481 #define EVP_MD_name(e)			OBJ_nid2sn(EVP_MD_nid(e))
482 int EVP_MD_pkey_type(const EVP_MD *md);
483 int EVP_MD_size(const EVP_MD *md);
484 int EVP_MD_block_size(const EVP_MD *md);
485 unsigned long EVP_MD_flags(const EVP_MD *md);
486 
487 const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx);
488 #define EVP_MD_CTX_size(e)		EVP_MD_size(EVP_MD_CTX_md(e))
489 #define EVP_MD_CTX_block_size(e)	EVP_MD_block_size(EVP_MD_CTX_md(e))
490 #define EVP_MD_CTX_type(e)		EVP_MD_type(EVP_MD_CTX_md(e))
491 
492 int EVP_CIPHER_nid(const EVP_CIPHER *cipher);
493 #define EVP_CIPHER_name(e)		OBJ_nid2sn(EVP_CIPHER_nid(e))
494 int EVP_CIPHER_block_size(const EVP_CIPHER *cipher);
495 int EVP_CIPHER_key_length(const EVP_CIPHER *cipher);
496 int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher);
497 unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher);
498 #define EVP_CIPHER_mode(e)		(EVP_CIPHER_flags(e) & EVP_CIPH_MODE)
499 
500 const EVP_CIPHER * EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx);
501 int EVP_CIPHER_CTX_encrypting(const EVP_CIPHER_CTX *ctx);
502 int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx);
503 int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx);
504 int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx);
505 int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx);
506 int EVP_CIPHER_CTX_get_iv(const EVP_CIPHER_CTX *ctx,
507     unsigned char *iv, size_t len);
508 int EVP_CIPHER_CTX_set_iv(EVP_CIPHER_CTX *ctx,
509     const unsigned char *iv, size_t len);
510 int EVP_CIPHER_CTX_copy(EVP_CIPHER_CTX *out, const EVP_CIPHER_CTX *in);
511 void * EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx);
512 void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data);
513 #define EVP_CIPHER_CTX_type(c)         EVP_CIPHER_type(EVP_CIPHER_CTX_cipher(c))
514 unsigned long EVP_CIPHER_CTX_flags(const EVP_CIPHER_CTX *ctx);
515 #define EVP_CIPHER_CTX_mode(e)		(EVP_CIPHER_CTX_flags(e) & EVP_CIPH_MODE)
516 
517 #define EVP_ENCODE_LENGTH(l)	(((l+2)/3*4)+(l/48+1)*2+80)
518 #define EVP_DECODE_LENGTH(l)	((l+3)/4*3+80)
519 
520 #define EVP_SignInit_ex(a,b,c)		EVP_DigestInit_ex(a,b,c)
521 #define EVP_SignInit(a,b)		EVP_DigestInit(a,b)
522 #define EVP_SignUpdate(a,b,c)		EVP_DigestUpdate(a,b,c)
523 #define	EVP_VerifyInit_ex(a,b,c)	EVP_DigestInit_ex(a,b,c)
524 #define	EVP_VerifyInit(a,b)		EVP_DigestInit(a,b)
525 #define	EVP_VerifyUpdate(a,b,c)		EVP_DigestUpdate(a,b,c)
526 #define EVP_OpenUpdate(a,b,c,d,e)	EVP_DecryptUpdate(a,b,c,d,e)
527 #define EVP_SealUpdate(a,b,c,d,e)	EVP_EncryptUpdate(a,b,c,d,e)
528 #define EVP_DigestSignUpdate(a,b,c)	EVP_DigestUpdate(a,b,c)
529 #define EVP_DigestVerifyUpdate(a,b,c)	EVP_DigestUpdate(a,b,c)
530 
531 #define BIO_set_md(b,md)		BIO_ctrl(b,BIO_C_SET_MD,0,(char *)md)
532 #define BIO_get_md(b,mdp)		BIO_ctrl(b,BIO_C_GET_MD,0,(char *)mdp)
533 #define BIO_get_md_ctx(b,mdcp)     BIO_ctrl(b,BIO_C_GET_MD_CTX,0,(char *)mdcp)
534 #define BIO_set_md_ctx(b,mdcp)     BIO_ctrl(b,BIO_C_SET_MD_CTX,0,(char *)mdcp)
535 #define BIO_get_cipher_status(b)	BIO_ctrl(b,BIO_C_GET_CIPHER_STATUS,0,NULL)
536 #define BIO_get_cipher_ctx(b,c_pp)	BIO_ctrl(b,BIO_C_GET_CIPHER_CTX,0,(char *)c_pp)
537 
538 int EVP_Cipher(EVP_CIPHER_CTX *c, unsigned char *out, const unsigned char *in,
539     unsigned int inl);
540 
541 #define EVP_add_cipher_alias(n,alias) \
542 	OBJ_NAME_add((alias),OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS,(n))
543 #define EVP_add_digest_alias(n,alias) \
544 	OBJ_NAME_add((alias),OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS,(n))
545 #define EVP_delete_cipher_alias(alias) \
546 	OBJ_NAME_remove(alias,OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS);
547 #define EVP_delete_digest_alias(alias) \
548 	OBJ_NAME_remove(alias,OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS);
549 
550 EVP_MD_CTX *EVP_MD_CTX_new(void);
551 void EVP_MD_CTX_free(EVP_MD_CTX *ctx);
552 void EVP_MD_CTX_init(EVP_MD_CTX *ctx);
553 int EVP_MD_CTX_reset(EVP_MD_CTX *ctx);
554 EVP_MD_CTX *EVP_MD_CTX_create(void);
555 void EVP_MD_CTX_destroy(EVP_MD_CTX *ctx);
556 int EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx);
557 int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in);
558 void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags);
559 void EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags);
560 int EVP_MD_CTX_ctrl(EVP_MD_CTX *ctx, int type, int arg, void *ptr);
561 int EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags);
562 
563 int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl);
564 int EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *d, size_t cnt);
565 int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *s);
566 int EVP_Digest(const void *data, size_t count, unsigned char *md,
567     unsigned int *size, const EVP_MD *type, ENGINE *impl);
568 
569 int EVP_MD_CTX_copy(EVP_MD_CTX *out, const EVP_MD_CTX *in);
570 int EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type);
571 int EVP_DigestFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *s);
572 
573 int EVP_read_pw_string(char *buf, int length, const char *prompt, int verify);
574 int EVP_read_pw_string_min(char *buf, int minlen, int maxlen,
575     const char *prompt, int verify);
576 void EVP_set_pw_prompt(const char *prompt);
577 char *EVP_get_pw_prompt(void);
578 
579 int EVP_BytesToKey(const EVP_CIPHER *type, const EVP_MD *md,
580     const unsigned char *salt, const unsigned char *data, int datal, int count,
581     unsigned char *key, unsigned char *iv);
582 
583 void EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags);
584 void EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags);
585 int EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx, int flags);
586 
587 int EVP_EncryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
588     const unsigned char *key, const unsigned char *iv);
589 int EVP_EncryptInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
590     ENGINE *impl, const unsigned char *key, const unsigned char *iv);
591 int EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
592     const unsigned char *in, int inl);
593 int EVP_EncryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
594 #ifndef LIBRESSL_INTERNAL
595 int EVP_EncryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
596 #endif
597 
598 int EVP_DecryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
599     const unsigned char *key, const unsigned char *iv);
600 int EVP_DecryptInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
601     ENGINE *impl, const unsigned char *key, const unsigned char *iv);
602 int EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
603     const unsigned char *in, int inl);
604 int EVP_DecryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
605 #ifndef LIBRESSL_INTERNAL
606 int EVP_DecryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
607 #endif
608 
609 int EVP_CipherInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
610     const unsigned char *key, const unsigned char *iv, int enc);
611 int EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
612     ENGINE *impl, const unsigned char *key, const unsigned char *iv, int enc);
613 int EVP_CipherUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
614     const unsigned char *in, int inl);
615 int EVP_CipherFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
616 #ifndef LIBRESSL_INTERNAL
617 int EVP_CipherFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
618 #endif
619 
620 int EVP_SignFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *s,
621     EVP_PKEY *pkey);
622 
623 int EVP_VerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sigbuf,
624     unsigned int siglen, EVP_PKEY *pkey);
625 
626 int EVP_DigestSignInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
627     const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey);
628 int EVP_DigestSignFinal(EVP_MD_CTX *ctx, unsigned char *sigret, size_t *siglen);
629 
630 int EVP_DigestVerifyInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
631     const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey);
632 int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sig,
633     size_t siglen);
634 
635 int EVP_OpenInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
636     const unsigned char *ek, int ekl, const unsigned char *iv, EVP_PKEY *priv);
637 int EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
638 
639 int EVP_SealInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
640     unsigned char **ek, int *ekl, unsigned char *iv, EVP_PKEY **pubk,
641     int npubk);
642 int EVP_SealFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
643 
644 EVP_ENCODE_CTX *EVP_ENCODE_CTX_new(void);
645 void EVP_ENCODE_CTX_free(EVP_ENCODE_CTX *ctx);
646 void EVP_EncodeInit(EVP_ENCODE_CTX *ctx);
647 int EVP_EncodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl,
648     const unsigned char *in, int inl);
649 void EVP_EncodeFinal(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl);
650 int EVP_EncodeBlock(unsigned char *t, const unsigned char *f, int n);
651 
652 void EVP_DecodeInit(EVP_ENCODE_CTX *ctx);
653 int EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl,
654     const unsigned char *in, int inl);
655 int EVP_DecodeFinal(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl);
656 int EVP_DecodeBlock(unsigned char *t, const unsigned char *f, int n);
657 
658 void EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *a);
659 int EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *a);
660 EVP_CIPHER_CTX *EVP_CIPHER_CTX_new(void);
661 void EVP_CIPHER_CTX_free(EVP_CIPHER_CTX *a);
662 int EVP_CIPHER_CTX_reset(EVP_CIPHER_CTX *a);
663 int EVP_CIPHER_CTX_set_key_length(EVP_CIPHER_CTX *x, int keylen);
664 int EVP_CIPHER_CTX_set_padding(EVP_CIPHER_CTX *c, int pad);
665 int EVP_CIPHER_CTX_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr);
666 int EVP_CIPHER_CTX_rand_key(EVP_CIPHER_CTX *ctx, unsigned char *key);
667 
668 #ifndef OPENSSL_NO_BIO
669 const BIO_METHOD *BIO_f_md(void);
670 const BIO_METHOD *BIO_f_base64(void);
671 const BIO_METHOD *BIO_f_cipher(void);
672 int BIO_set_cipher(BIO *b, const EVP_CIPHER *c, const unsigned char *k,
673     const unsigned char *i, int enc);
674 #endif
675 
676 const EVP_MD *EVP_md_null(void);
677 #ifndef OPENSSL_NO_MD4
678 const EVP_MD *EVP_md4(void);
679 #endif
680 #ifndef OPENSSL_NO_MD5
681 const EVP_MD *EVP_md5(void);
682 const EVP_MD *EVP_md5_sha1(void);
683 #endif
684 #ifndef OPENSSL_NO_SHA
685 const EVP_MD *EVP_sha1(void);
686 const EVP_MD *EVP_dss(void);
687 const EVP_MD *EVP_dss1(void);
688 const EVP_MD *EVP_ecdsa(void);
689 #endif
690 #ifndef OPENSSL_NO_SHA256
691 const EVP_MD *EVP_sha224(void);
692 const EVP_MD *EVP_sha256(void);
693 #endif
694 #ifndef OPENSSL_NO_SHA512
695 const EVP_MD *EVP_sha384(void);
696 const EVP_MD *EVP_sha512(void);
697 #endif
698 #ifndef OPENSSL_NO_SM3
699 const EVP_MD *EVP_sm3(void);
700 #endif
701 #ifndef OPENSSL_NO_RIPEMD
702 const EVP_MD *EVP_ripemd160(void);
703 #endif
704 #ifndef OPENSSL_NO_WHIRLPOOL
705 const EVP_MD *EVP_whirlpool(void);
706 #endif
707 #ifndef OPENSSL_NO_GOST
708 const EVP_MD *EVP_gostr341194(void);
709 const EVP_MD *EVP_gost2814789imit(void);
710 const EVP_MD *EVP_streebog256(void);
711 const EVP_MD *EVP_streebog512(void);
712 #endif
713 const EVP_CIPHER *EVP_enc_null(void);		/* does nothing :-) */
714 #ifndef OPENSSL_NO_DES
715 const EVP_CIPHER *EVP_des_ecb(void);
716 const EVP_CIPHER *EVP_des_ede(void);
717 const EVP_CIPHER *EVP_des_ede3(void);
718 const EVP_CIPHER *EVP_des_ede_ecb(void);
719 const EVP_CIPHER *EVP_des_ede3_ecb(void);
720 const EVP_CIPHER *EVP_des_cfb64(void);
721 # define EVP_des_cfb EVP_des_cfb64
722 const EVP_CIPHER *EVP_des_cfb1(void);
723 const EVP_CIPHER *EVP_des_cfb8(void);
724 const EVP_CIPHER *EVP_des_ede_cfb64(void);
725 # define EVP_des_ede_cfb EVP_des_ede_cfb64
726 const EVP_CIPHER *EVP_des_ede3_cfb64(void);
727 # define EVP_des_ede3_cfb EVP_des_ede3_cfb64
728 const EVP_CIPHER *EVP_des_ede3_cfb1(void);
729 const EVP_CIPHER *EVP_des_ede3_cfb8(void);
730 const EVP_CIPHER *EVP_des_ofb(void);
731 const EVP_CIPHER *EVP_des_ede_ofb(void);
732 const EVP_CIPHER *EVP_des_ede3_ofb(void);
733 const EVP_CIPHER *EVP_des_cbc(void);
734 const EVP_CIPHER *EVP_des_ede_cbc(void);
735 const EVP_CIPHER *EVP_des_ede3_cbc(void);
736 const EVP_CIPHER *EVP_desx_cbc(void);
737 #endif
738 #ifndef OPENSSL_NO_RC4
739 const EVP_CIPHER *EVP_rc4(void);
740 const EVP_CIPHER *EVP_rc4_40(void);
741 #ifndef OPENSSL_NO_MD5
742 const EVP_CIPHER *EVP_rc4_hmac_md5(void);
743 #endif
744 #endif
745 #ifndef OPENSSL_NO_IDEA
746 const EVP_CIPHER *EVP_idea_ecb(void);
747 const EVP_CIPHER *EVP_idea_cfb64(void);
748 # define EVP_idea_cfb EVP_idea_cfb64
749 const EVP_CIPHER *EVP_idea_ofb(void);
750 const EVP_CIPHER *EVP_idea_cbc(void);
751 #endif
752 #ifndef OPENSSL_NO_RC2
753 const EVP_CIPHER *EVP_rc2_ecb(void);
754 const EVP_CIPHER *EVP_rc2_cbc(void);
755 const EVP_CIPHER *EVP_rc2_40_cbc(void);
756 const EVP_CIPHER *EVP_rc2_64_cbc(void);
757 const EVP_CIPHER *EVP_rc2_cfb64(void);
758 # define EVP_rc2_cfb EVP_rc2_cfb64
759 const EVP_CIPHER *EVP_rc2_ofb(void);
760 #endif
761 #ifndef OPENSSL_NO_BF
762 const EVP_CIPHER *EVP_bf_ecb(void);
763 const EVP_CIPHER *EVP_bf_cbc(void);
764 const EVP_CIPHER *EVP_bf_cfb64(void);
765 # define EVP_bf_cfb EVP_bf_cfb64
766 const EVP_CIPHER *EVP_bf_ofb(void);
767 #endif
768 #ifndef OPENSSL_NO_CAST
769 const EVP_CIPHER *EVP_cast5_ecb(void);
770 const EVP_CIPHER *EVP_cast5_cbc(void);
771 const EVP_CIPHER *EVP_cast5_cfb64(void);
772 # define EVP_cast5_cfb EVP_cast5_cfb64
773 const EVP_CIPHER *EVP_cast5_ofb(void);
774 #endif
775 #ifndef OPENSSL_NO_AES
776 const EVP_CIPHER *EVP_aes_128_ecb(void);
777 const EVP_CIPHER *EVP_aes_128_cbc(void);
778 const EVP_CIPHER *EVP_aes_128_cfb1(void);
779 const EVP_CIPHER *EVP_aes_128_cfb8(void);
780 const EVP_CIPHER *EVP_aes_128_cfb128(void);
781 # define EVP_aes_128_cfb EVP_aes_128_cfb128
782 const EVP_CIPHER *EVP_aes_128_ofb(void);
783 const EVP_CIPHER *EVP_aes_128_ctr(void);
784 const EVP_CIPHER *EVP_aes_128_ccm(void);
785 const EVP_CIPHER *EVP_aes_128_gcm(void);
786 const EVP_CIPHER *EVP_aes_128_wrap(void);
787 const EVP_CIPHER *EVP_aes_128_xts(void);
788 const EVP_CIPHER *EVP_aes_192_ecb(void);
789 const EVP_CIPHER *EVP_aes_192_cbc(void);
790 const EVP_CIPHER *EVP_aes_192_cfb1(void);
791 const EVP_CIPHER *EVP_aes_192_cfb8(void);
792 const EVP_CIPHER *EVP_aes_192_cfb128(void);
793 # define EVP_aes_192_cfb EVP_aes_192_cfb128
794 const EVP_CIPHER *EVP_aes_192_ofb(void);
795 const EVP_CIPHER *EVP_aes_192_ctr(void);
796 const EVP_CIPHER *EVP_aes_192_ccm(void);
797 const EVP_CIPHER *EVP_aes_192_gcm(void);
798 const EVP_CIPHER *EVP_aes_192_wrap(void);
799 const EVP_CIPHER *EVP_aes_256_ecb(void);
800 const EVP_CIPHER *EVP_aes_256_cbc(void);
801 const EVP_CIPHER *EVP_aes_256_cfb1(void);
802 const EVP_CIPHER *EVP_aes_256_cfb8(void);
803 const EVP_CIPHER *EVP_aes_256_cfb128(void);
804 # define EVP_aes_256_cfb EVP_aes_256_cfb128
805 const EVP_CIPHER *EVP_aes_256_ofb(void);
806 const EVP_CIPHER *EVP_aes_256_ctr(void);
807 const EVP_CIPHER *EVP_aes_256_ccm(void);
808 const EVP_CIPHER *EVP_aes_256_gcm(void);
809 const EVP_CIPHER *EVP_aes_256_wrap(void);
810 const EVP_CIPHER *EVP_aes_256_xts(void);
811 #if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_SHA1)
812 const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void);
813 const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha1(void);
814 #endif
815 #endif
816 #ifndef OPENSSL_NO_CAMELLIA
817 const EVP_CIPHER *EVP_camellia_128_ecb(void);
818 const EVP_CIPHER *EVP_camellia_128_cbc(void);
819 const EVP_CIPHER *EVP_camellia_128_cfb1(void);
820 const EVP_CIPHER *EVP_camellia_128_cfb8(void);
821 const EVP_CIPHER *EVP_camellia_128_cfb128(void);
822 # define EVP_camellia_128_cfb EVP_camellia_128_cfb128
823 const EVP_CIPHER *EVP_camellia_128_ofb(void);
824 const EVP_CIPHER *EVP_camellia_192_ecb(void);
825 const EVP_CIPHER *EVP_camellia_192_cbc(void);
826 const EVP_CIPHER *EVP_camellia_192_cfb1(void);
827 const EVP_CIPHER *EVP_camellia_192_cfb8(void);
828 const EVP_CIPHER *EVP_camellia_192_cfb128(void);
829 # define EVP_camellia_192_cfb EVP_camellia_192_cfb128
830 const EVP_CIPHER *EVP_camellia_192_ofb(void);
831 const EVP_CIPHER *EVP_camellia_256_ecb(void);
832 const EVP_CIPHER *EVP_camellia_256_cbc(void);
833 const EVP_CIPHER *EVP_camellia_256_cfb1(void);
834 const EVP_CIPHER *EVP_camellia_256_cfb8(void);
835 const EVP_CIPHER *EVP_camellia_256_cfb128(void);
836 # define EVP_camellia_256_cfb EVP_camellia_256_cfb128
837 const EVP_CIPHER *EVP_camellia_256_ofb(void);
838 #endif
839 
840 #ifndef OPENSSL_NO_CHACHA
841 const EVP_CIPHER *EVP_chacha20(void);
842 #endif
843 
844 #ifndef OPENSSL_NO_GOST
845 const EVP_CIPHER *EVP_gost2814789_ecb(void);
846 const EVP_CIPHER *EVP_gost2814789_cfb64(void);
847 const EVP_CIPHER *EVP_gost2814789_cnt(void);
848 #endif
849 
850 #ifndef OPENSSL_NO_SM4
851 const EVP_CIPHER *EVP_sm4_ecb(void);
852 const EVP_CIPHER *EVP_sm4_cbc(void);
853 const EVP_CIPHER *EVP_sm4_cfb128(void);
854 #define EVP_sm4_cfb EVP_sm4_cfb128
855 const EVP_CIPHER *EVP_sm4_ofb(void);
856 const EVP_CIPHER *EVP_sm4_ctr(void);
857 #endif
858 
859 void OPENSSL_add_all_algorithms_noconf(void);
860 void OPENSSL_add_all_algorithms_conf(void);
861 
862 #ifdef OPENSSL_LOAD_CONF
863 #define OpenSSL_add_all_algorithms() OPENSSL_add_all_algorithms_conf()
864 #else
865 #define OpenSSL_add_all_algorithms() OPENSSL_add_all_algorithms_noconf()
866 #endif
867 
868 void OpenSSL_add_all_ciphers(void);
869 void OpenSSL_add_all_digests(void);
870 
871 #define SSLeay_add_all_algorithms() OpenSSL_add_all_algorithms()
872 #define SSLeay_add_all_ciphers() OpenSSL_add_all_ciphers()
873 #define SSLeay_add_all_digests() OpenSSL_add_all_digests()
874 
875 int EVP_add_cipher(const EVP_CIPHER *cipher);
876 int EVP_add_digest(const EVP_MD *digest);
877 
878 const EVP_CIPHER *EVP_get_cipherbyname(const char *name);
879 const EVP_MD *EVP_get_digestbyname(const char *name);
880 void EVP_cleanup(void);
881 
882 void EVP_CIPHER_do_all(void (*fn)(const EVP_CIPHER *ciph, const char *from,
883     const char *to, void *x), void *arg);
884 void EVP_CIPHER_do_all_sorted(void (*fn)(const EVP_CIPHER *ciph,
885     const char *from, const char *to, void *x), void *arg);
886 
887 void EVP_MD_do_all(void (*fn)(const EVP_MD *ciph, const char *from,
888     const char *to, void *x), void *arg);
889 void EVP_MD_do_all_sorted(void (*fn)(const EVP_MD *ciph, const char *from,
890     const char *to, void *x), void *arg);
891 
892 int EVP_PKEY_decrypt_old(unsigned char *dec_key, const unsigned char *enc_key,
893     int enc_key_len, EVP_PKEY *private_key);
894 int EVP_PKEY_encrypt_old(unsigned char *enc_key, const unsigned char *key,
895     int key_len, EVP_PKEY *pub_key);
896 int EVP_PKEY_type(int type);
897 int EVP_PKEY_id(const EVP_PKEY *pkey);
898 int EVP_PKEY_base_id(const EVP_PKEY *pkey);
899 int EVP_PKEY_bits(const EVP_PKEY *pkey);
900 int EVP_PKEY_size(const EVP_PKEY *pkey);
901 int EVP_PKEY_set_type(EVP_PKEY *pkey, int type);
902 int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len);
903 int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key);
904 void *EVP_PKEY_get0(const EVP_PKEY *pkey);
905 const unsigned char *EVP_PKEY_get0_hmac(const EVP_PKEY *pkey, size_t *len);
906 
907 #ifndef OPENSSL_NO_RSA
908 struct rsa_st;
909 struct rsa_st *EVP_PKEY_get0_RSA(EVP_PKEY *pkey);
910 struct rsa_st *EVP_PKEY_get1_RSA(EVP_PKEY *pkey);
911 int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, struct rsa_st *key);
912 #endif
913 #ifndef OPENSSL_NO_DSA
914 struct dsa_st;
915 struct dsa_st *EVP_PKEY_get0_DSA(EVP_PKEY *pkey);
916 struct dsa_st *EVP_PKEY_get1_DSA(EVP_PKEY *pkey);
917 int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, struct dsa_st *key);
918 #endif
919 #ifndef OPENSSL_NO_DH
920 struct dh_st;
921 struct dh_st *EVP_PKEY_get0_DH(EVP_PKEY *pkey);
922 struct dh_st *EVP_PKEY_get1_DH(EVP_PKEY *pkey);
923 int EVP_PKEY_set1_DH(EVP_PKEY *pkey, struct dh_st *key);
924 #endif
925 #ifndef OPENSSL_NO_EC
926 struct ec_key_st;
927 struct ec_key_st *EVP_PKEY_get0_EC_KEY(EVP_PKEY *pkey);
928 struct ec_key_st *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey);
929 int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, struct ec_key_st *key);
930 #endif
931 #ifndef OPENSSL_NO_GOST
932 struct gost_key_st;
933 #endif
934 
935 EVP_PKEY *EVP_PKEY_new(void);
936 void EVP_PKEY_free(EVP_PKEY *pkey);
937 int EVP_PKEY_up_ref(EVP_PKEY *pkey);
938 
939 EVP_PKEY *d2i_PublicKey(int type, EVP_PKEY **a, const unsigned char **pp,
940     long length);
941 int i2d_PublicKey(EVP_PKEY *a, unsigned char **pp);
942 
943 EVP_PKEY *d2i_PrivateKey(int type, EVP_PKEY **a, const unsigned char **pp,
944     long length);
945 EVP_PKEY *d2i_AutoPrivateKey(EVP_PKEY **a, const unsigned char **pp,
946     long length);
947 int i2d_PrivateKey(EVP_PKEY *a, unsigned char **pp);
948 
949 int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from);
950 int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey);
951 int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode);
952 int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b);
953 
954 int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b);
955 
956 int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, int indent,
957     ASN1_PCTX *pctx);
958 int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey, int indent,
959     ASN1_PCTX *pctx);
960 int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, int indent,
961     ASN1_PCTX *pctx);
962 
963 int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid);
964 
965 int EVP_CIPHER_type(const EVP_CIPHER *ctx);
966 
967 /* calls methods */
968 int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
969 int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
970 
971 /* These are used by EVP_CIPHER methods */
972 int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
973 int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
974 
975 /* PKCS5 password based encryption */
976 int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
977     ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md, int en_de);
978 int PKCS5_PBKDF2_HMAC_SHA1(const char *pass, int passlen,
979     const unsigned char *salt, int saltlen, int iter, int keylen,
980     unsigned char *out);
981 int PKCS5_PBKDF2_HMAC(const char *pass, int passlen, const unsigned char *salt,
982     int saltlen, int iter, const EVP_MD *digest, int keylen,
983     unsigned char *out);
984 int PKCS5_v2_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
985     ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md,
986     int en_de);
987 
988 void PKCS5_PBE_add(void);
989 
990 int EVP_PBE_CipherInit (ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
991     ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de);
992 
993 /* PBE type */
994 
995 /* Can appear as the outermost AlgorithmIdentifier */
996 #define EVP_PBE_TYPE_OUTER	0x0
997 /* Is an PRF type OID */
998 #define EVP_PBE_TYPE_PRF	0x1
999 
1000 int EVP_PBE_alg_add_type(int pbe_type, int pbe_nid, int cipher_nid, int md_nid,
1001     EVP_PBE_KEYGEN *keygen);
1002 int EVP_PBE_alg_add(int nid, const EVP_CIPHER *cipher, const EVP_MD *md,
1003     EVP_PBE_KEYGEN *keygen);
1004 int EVP_PBE_find(int type, int pbe_nid, int *pcnid, int *pmnid,
1005     EVP_PBE_KEYGEN **pkeygen);
1006 void EVP_PBE_cleanup(void);
1007 
1008 #define ASN1_PKEY_ALIAS		0x1
1009 #define ASN1_PKEY_DYNAMIC	0x2
1010 #define ASN1_PKEY_SIGPARAM_NULL	0x4
1011 
1012 #define ASN1_PKEY_CTRL_PKCS7_SIGN	0x1
1013 #define ASN1_PKEY_CTRL_PKCS7_ENCRYPT	0x2
1014 #define ASN1_PKEY_CTRL_DEFAULT_MD_NID	0x3
1015 #define ASN1_PKEY_CTRL_CMS_SIGN		0x5
1016 #define ASN1_PKEY_CTRL_CMS_ENVELOPE	0x7
1017 
1018 int EVP_PKEY_asn1_get_count(void);
1019 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx);
1020 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(ENGINE **pe, int type);
1021 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pe,
1022     const char *str, int len);
1023 int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth);
1024 int EVP_PKEY_asn1_add_alias(int to, int from);
1025 int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *pkey_base_id, int *ppkey_flags,
1026     const char **pinfo, const char **ppem_str,
1027     const EVP_PKEY_ASN1_METHOD *ameth);
1028 
1029 const EVP_PKEY_ASN1_METHOD* EVP_PKEY_get0_asn1(const EVP_PKEY *pkey);
1030 EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id, int flags, const char *pem_str,
1031     const char *info);
1032 void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
1033     const EVP_PKEY_ASN1_METHOD *src);
1034 void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth);
1035 void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
1036     int (*pub_decode)(EVP_PKEY *pk, X509_PUBKEY *pub),
1037     int (*pub_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk),
1038     int (*pub_cmp)(const EVP_PKEY *a, const EVP_PKEY *b),
1039     int (*pub_print)(BIO *out, const EVP_PKEY *pkey, int indent,
1040     ASN1_PCTX *pctx),
1041     int (*pkey_size)(const EVP_PKEY *pk),
1042     int (*pkey_bits)(const EVP_PKEY *pk));
1043 void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
1044     int (*priv_decode)(EVP_PKEY *pk, const PKCS8_PRIV_KEY_INFO *p8inf),
1045     int (*priv_encode)(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk),
1046     int (*priv_print)(BIO *out, const EVP_PKEY *pkey, int indent,
1047     ASN1_PCTX *pctx));
1048 void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
1049     int (*param_decode)(EVP_PKEY *pkey, const unsigned char **pder, int derlen),
1050     int (*param_encode)(const EVP_PKEY *pkey, unsigned char **pder),
1051     int (*param_missing)(const EVP_PKEY *pk),
1052     int (*param_copy)(EVP_PKEY *to, const EVP_PKEY *from),
1053     int (*param_cmp)(const EVP_PKEY *a, const EVP_PKEY *b),
1054     int (*param_print)(BIO *out, const EVP_PKEY *pkey, int indent,
1055     ASN1_PCTX *pctx));
1056 
1057 void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
1058     void (*pkey_free)(EVP_PKEY *pkey));
1059 void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
1060     int (*pkey_ctrl)(EVP_PKEY *pkey, int op, long arg1, void *arg2));
1061 
1062 #define EVP_PKEY_OP_UNDEFINED		0
1063 #define EVP_PKEY_OP_PARAMGEN		(1<<1)
1064 #define EVP_PKEY_OP_KEYGEN		(1<<2)
1065 #define EVP_PKEY_OP_SIGN		(1<<3)
1066 #define EVP_PKEY_OP_VERIFY		(1<<4)
1067 #define EVP_PKEY_OP_VERIFYRECOVER	(1<<5)
1068 #define EVP_PKEY_OP_SIGNCTX		(1<<6)
1069 #define EVP_PKEY_OP_VERIFYCTX		(1<<7)
1070 #define EVP_PKEY_OP_ENCRYPT		(1<<8)
1071 #define EVP_PKEY_OP_DECRYPT		(1<<9)
1072 #define EVP_PKEY_OP_DERIVE		(1<<10)
1073 
1074 #define EVP_PKEY_OP_TYPE_SIG	\
1075 	(EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY | EVP_PKEY_OP_VERIFYRECOVER \
1076 		| EVP_PKEY_OP_SIGNCTX | EVP_PKEY_OP_VERIFYCTX)
1077 
1078 #define EVP_PKEY_OP_TYPE_CRYPT \
1079 	(EVP_PKEY_OP_ENCRYPT | EVP_PKEY_OP_DECRYPT)
1080 
1081 #define EVP_PKEY_OP_TYPE_NOGEN \
1082 	(EVP_PKEY_OP_SIG | EVP_PKEY_OP_CRYPT | EVP_PKEY_OP_DERIVE)
1083 
1084 #define EVP_PKEY_OP_TYPE_GEN \
1085 		(EVP_PKEY_OP_PARAMGEN | EVP_PKEY_OP_KEYGEN)
1086 
1087 #define	 EVP_PKEY_CTX_set_signature_md(ctx, md)	\
1088 		EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,  \
1089 					EVP_PKEY_CTRL_MD, 0, (void *)md)
1090 
1091 #define EVP_PKEY_CTRL_MD		1
1092 #define EVP_PKEY_CTRL_PEER_KEY		2
1093 
1094 #define EVP_PKEY_CTRL_PKCS7_ENCRYPT	3
1095 #define EVP_PKEY_CTRL_PKCS7_DECRYPT	4
1096 
1097 #define EVP_PKEY_CTRL_PKCS7_SIGN	5
1098 
1099 #define EVP_PKEY_CTRL_SET_MAC_KEY	6
1100 
1101 #define EVP_PKEY_CTRL_DIGESTINIT	7
1102 
1103 /* Used by GOST key encryption in TLS */
1104 #define EVP_PKEY_CTRL_SET_IV 		8
1105 
1106 #define EVP_PKEY_CTRL_CMS_ENCRYPT	9
1107 #define EVP_PKEY_CTRL_CMS_DECRYPT	10
1108 #define EVP_PKEY_CTRL_CMS_SIGN		11
1109 
1110 #define EVP_PKEY_CTRL_CIPHER		12
1111 
1112 #define EVP_PKEY_ALG_CTRL		0x1000
1113 
1114 
1115 #define EVP_PKEY_FLAG_AUTOARGLEN	2
1116 /* Method handles all operations: don't assume any digest related
1117  * defaults.
1118  */
1119 #define EVP_PKEY_FLAG_SIGCTX_CUSTOM	4
1120 
1121 const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type);
1122 EVP_PKEY_METHOD* EVP_PKEY_meth_new(int id, int flags);
1123 void EVP_PKEY_meth_get0_info(int *ppkey_id, int *pflags,
1124     const EVP_PKEY_METHOD *meth);
1125 void EVP_PKEY_meth_copy(EVP_PKEY_METHOD *dst, const EVP_PKEY_METHOD *src);
1126 void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth);
1127 int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth);
1128 
1129 EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e);
1130 EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e);
1131 EVP_PKEY_CTX *EVP_PKEY_CTX_dup(EVP_PKEY_CTX *ctx);
1132 void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx);
1133 
1134 int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype, int cmd,
1135     int p1, void *p2);
1136 int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx, const char *type,
1137     const char *value);
1138 
1139 int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx);
1140 void EVP_PKEY_CTX_set0_keygen_info(EVP_PKEY_CTX *ctx, int *dat, int datlen);
1141 
1142 EVP_PKEY *EVP_PKEY_new_mac_key(int type, ENGINE *e, const unsigned char *key,
1143     int keylen);
1144 
1145 void EVP_PKEY_CTX_set_data(EVP_PKEY_CTX *ctx, void *data);
1146 void *EVP_PKEY_CTX_get_data(EVP_PKEY_CTX *ctx);
1147 EVP_PKEY *EVP_PKEY_CTX_get0_pkey(EVP_PKEY_CTX *ctx);
1148 
1149 EVP_PKEY *EVP_PKEY_CTX_get0_peerkey(EVP_PKEY_CTX *ctx);
1150 
1151 void EVP_PKEY_CTX_set_app_data(EVP_PKEY_CTX *ctx, void *data);
1152 void *EVP_PKEY_CTX_get_app_data(EVP_PKEY_CTX *ctx);
1153 
1154 int EVP_PKEY_sign_init(EVP_PKEY_CTX *ctx);
1155 int EVP_PKEY_sign(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
1156     const unsigned char *tbs, size_t tbslen);
1157 int EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx);
1158 int EVP_PKEY_verify(EVP_PKEY_CTX *ctx, const unsigned char *sig, size_t siglen,
1159     const unsigned char *tbs, size_t tbslen);
1160 int EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx);
1161 int EVP_PKEY_verify_recover(EVP_PKEY_CTX *ctx, unsigned char *rout,
1162     size_t *routlen, const unsigned char *sig, size_t siglen);
1163 int EVP_PKEY_encrypt_init(EVP_PKEY_CTX *ctx);
1164 int EVP_PKEY_encrypt(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
1165     const unsigned char *in, size_t inlen);
1166 int EVP_PKEY_decrypt_init(EVP_PKEY_CTX *ctx);
1167 int EVP_PKEY_decrypt(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
1168     const unsigned char *in, size_t inlen);
1169 
1170 int EVP_PKEY_derive_init(EVP_PKEY_CTX *ctx);
1171 int EVP_PKEY_derive_set_peer(EVP_PKEY_CTX *ctx, EVP_PKEY *peer);
1172 int EVP_PKEY_derive(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
1173 
1174 typedef int EVP_PKEY_gen_cb(EVP_PKEY_CTX *ctx);
1175 
1176 int EVP_PKEY_paramgen_init(EVP_PKEY_CTX *ctx);
1177 int EVP_PKEY_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey);
1178 int EVP_PKEY_keygen_init(EVP_PKEY_CTX *ctx);
1179 int EVP_PKEY_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey);
1180 
1181 void EVP_PKEY_CTX_set_cb(EVP_PKEY_CTX *ctx, EVP_PKEY_gen_cb *cb);
1182 EVP_PKEY_gen_cb *EVP_PKEY_CTX_get_cb(EVP_PKEY_CTX *ctx);
1183 
1184 int EVP_PKEY_CTX_get_keygen_info(EVP_PKEY_CTX *ctx, int idx);
1185 
1186 void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
1187     int (*init)(EVP_PKEY_CTX *ctx));
1188 
1189 void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
1190     int (*copy)(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src));
1191 
1192 void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
1193     void (*cleanup)(EVP_PKEY_CTX *ctx));
1194 
1195 void EVP_PKEY_meth_set_paramgen(EVP_PKEY_METHOD *pmeth,
1196     int (*paramgen_init)(EVP_PKEY_CTX *ctx),
1197     int (*paramgen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey));
1198 
1199 void EVP_PKEY_meth_set_keygen(EVP_PKEY_METHOD *pmeth,
1200     int (*keygen_init)(EVP_PKEY_CTX *ctx),
1201     int (*keygen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey));
1202 
1203 void EVP_PKEY_meth_set_sign(EVP_PKEY_METHOD *pmeth,
1204     int (*sign_init)(EVP_PKEY_CTX *ctx),
1205     int (*sign)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
1206     const unsigned char *tbs, size_t tbslen));
1207 
1208 void EVP_PKEY_meth_set_verify(EVP_PKEY_METHOD *pmeth,
1209     int (*verify_init)(EVP_PKEY_CTX *ctx),
1210     int (*verify)(EVP_PKEY_CTX *ctx, const unsigned char *sig, size_t siglen,
1211     const unsigned char *tbs, size_t tbslen));
1212 
1213 void EVP_PKEY_meth_set_verify_recover(EVP_PKEY_METHOD *pmeth,
1214     int (*verify_recover_init)(EVP_PKEY_CTX *ctx),
1215     int (*verify_recover)(EVP_PKEY_CTX *ctx, unsigned char *sig,
1216     size_t *siglen, const unsigned char *tbs, size_t tbslen));
1217 
1218 void EVP_PKEY_meth_set_signctx(EVP_PKEY_METHOD *pmeth,
1219     int (*signctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx),
1220     int (*signctx)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
1221     EVP_MD_CTX *mctx));
1222 
1223 void EVP_PKEY_meth_set_verifyctx(EVP_PKEY_METHOD *pmeth,
1224     int (*verifyctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx),
1225     int (*verifyctx)(EVP_PKEY_CTX *ctx, const unsigned char *sig, int siglen,
1226     EVP_MD_CTX *mctx));
1227 
1228 void EVP_PKEY_meth_set_encrypt(EVP_PKEY_METHOD *pmeth,
1229     int (*encrypt_init)(EVP_PKEY_CTX *ctx),
1230     int (*encryptfn)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
1231     const unsigned char *in, size_t inlen));
1232 
1233 void EVP_PKEY_meth_set_decrypt(EVP_PKEY_METHOD *pmeth,
1234     int (*decrypt_init)(EVP_PKEY_CTX *ctx),
1235     int (*decrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
1236     const unsigned char *in, size_t inlen));
1237 
1238 void EVP_PKEY_meth_set_derive(EVP_PKEY_METHOD *pmeth,
1239     int (*derive_init)(EVP_PKEY_CTX *ctx),
1240     int (*derive)(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen));
1241 
1242 void EVP_PKEY_meth_set_ctrl(EVP_PKEY_METHOD *pmeth,
1243     int (*ctrl)(EVP_PKEY_CTX *ctx, int type, int p1, void *p2),
1244     int (*ctrl_str)(EVP_PKEY_CTX *ctx, const char *type, const char *value));
1245 
1246 /* Authenticated Encryption with Additional Data.
1247  *
1248  * AEAD couples confidentiality and integrity in a single primtive. AEAD
1249  * algorithms take a key and then can seal and open individual messages. Each
1250  * message has a unique, per-message nonce and, optionally, additional data
1251  * which is authenticated but not included in the output. */
1252 
1253 struct evp_aead_st;
1254 typedef struct evp_aead_st EVP_AEAD;
1255 
1256 #ifndef OPENSSL_NO_AES
1257 /* EVP_aes_128_gcm is AES-128 in Galois Counter Mode. */
1258 const EVP_AEAD *EVP_aead_aes_128_gcm(void);
1259 /* EVP_aes_256_gcm is AES-256 in Galois Counter Mode. */
1260 const EVP_AEAD *EVP_aead_aes_256_gcm(void);
1261 #endif
1262 
1263 #if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
1264 /* EVP_aead_chacha20_poly1305 is ChaCha20 with a Poly1305 authenticator. */
1265 const EVP_AEAD *EVP_aead_chacha20_poly1305(void);
1266 /* EVP_aead_xchacha20_poly1305 is XChaCha20 with a Poly1305 authenticator. */
1267 const EVP_AEAD *EVP_aead_xchacha20_poly1305(void);
1268 #endif
1269 
1270 /* EVP_AEAD_key_length returns the length of the keys used. */
1271 size_t EVP_AEAD_key_length(const EVP_AEAD *aead);
1272 
1273 /* EVP_AEAD_nonce_length returns the length of the per-message nonce. */
1274 size_t EVP_AEAD_nonce_length(const EVP_AEAD *aead);
1275 
1276 /* EVP_AEAD_max_overhead returns the maximum number of additional bytes added
1277  * by the act of sealing data with the AEAD. */
1278 size_t EVP_AEAD_max_overhead(const EVP_AEAD *aead);
1279 
1280 /* EVP_AEAD_max_tag_len returns the maximum tag length when using this AEAD.
1281  * This * is the largest value that can be passed as a tag length to
1282  * EVP_AEAD_CTX_init. */
1283 size_t EVP_AEAD_max_tag_len(const EVP_AEAD *aead);
1284 
1285 /* An EVP_AEAD_CTX represents an AEAD algorithm configured with a specific key
1286  * and message-independent IV. */
1287 typedef struct evp_aead_ctx_st {
1288 	const EVP_AEAD *aead;
1289 	/* aead_state is an opaque pointer to the AEAD specific state. */
1290 	void *aead_state;
1291 } EVP_AEAD_CTX;
1292 
1293 /* EVP_AEAD_MAX_TAG_LENGTH is the maximum tag length used by any AEAD
1294  * defined in this header. */
1295 #define EVP_AEAD_MAX_TAG_LENGTH 16
1296 
1297 /* EVP_AEAD_DEFAULT_TAG_LENGTH is a magic value that can be passed to
1298  * EVP_AEAD_CTX_init to indicate that the default tag length for an AEAD
1299  * should be used. */
1300 #define EVP_AEAD_DEFAULT_TAG_LENGTH 0
1301 
1302 /* EVP_AEAD_init initializes the context for the given AEAD algorithm.
1303  * The implementation argument may be NULL to choose the default implementation.
1304  * Authentication tags may be truncated by passing a tag length. A tag length
1305  * of zero indicates the default tag length should be used. */
1306 int EVP_AEAD_CTX_init(EVP_AEAD_CTX *ctx, const EVP_AEAD *aead,
1307     const unsigned char *key, size_t key_len, size_t tag_len, ENGINE *impl);
1308 
1309 /* EVP_AEAD_CTX_cleanup frees any data allocated for this context. */
1310 void EVP_AEAD_CTX_cleanup(EVP_AEAD_CTX *ctx);
1311 
1312 /* EVP_AEAD_CTX_seal encrypts and authenticates the input and authenticates
1313  * any additional data (AD), the result being written as output. One is
1314  * returned on success, otherwise zero.
1315  *
1316  * This function may be called (with the same EVP_AEAD_CTX) concurrently with
1317  * itself or EVP_AEAD_CTX_open.
1318  *
1319  * At most max_out_len bytes are written as output and, in order to ensure
1320  * success, this value should be the length of the input plus the result of
1321  * EVP_AEAD_overhead. On successful return, out_len is set to the actual
1322  * number of bytes written.
1323  *
1324  * The length of the nonce is must be equal to the result of
1325  * EVP_AEAD_nonce_length for this AEAD.
1326  *
1327  * EVP_AEAD_CTX_seal never results in a partial output. If max_out_len is
1328  * insufficient, zero will be returned and out_len will be set to zero.
1329  *
1330  * If the input and output are aliased then out must be <= in. */
1331 int EVP_AEAD_CTX_seal(const EVP_AEAD_CTX *ctx, unsigned char *out,
1332     size_t *out_len, size_t max_out_len, const unsigned char *nonce,
1333     size_t nonce_len, const unsigned char *in, size_t in_len,
1334     const unsigned char *ad, size_t ad_len);
1335 
1336 /* EVP_AEAD_CTX_open authenticates the input and additional data, decrypting
1337  * the input and writing it as output. One is returned on success, otherwise
1338  * zero.
1339  *
1340  * This function may be called (with the same EVP_AEAD_CTX) concurrently with
1341  * itself or EVP_AEAD_CTX_seal.
1342  *
1343  * At most the number of input bytes are written as output. In order to ensure
1344  * success, max_out_len should be at least the same as the input length. On
1345  * successful return out_len is set to the actual number of bytes written.
1346  *
1347  * The length of nonce must be equal to the result of EVP_AEAD_nonce_length
1348  * for this AEAD.
1349  *
1350  * EVP_AEAD_CTX_open never results in a partial output. If max_out_len is
1351  * insufficient, zero will be returned and out_len will be set to zero.
1352  *
1353  * If the input and output are aliased then out must be <= in. */
1354 int EVP_AEAD_CTX_open(const EVP_AEAD_CTX *ctx, unsigned char *out,
1355     size_t *out_len, size_t max_out_len, const unsigned char *nonce,
1356     size_t nonce_len, const unsigned char *in, size_t in_len,
1357     const unsigned char *ad, size_t ad_len);
1358 
1359 void EVP_add_alg_module(void);
1360 
1361 /* BEGIN ERROR CODES */
1362 /* The following lines are auto generated by the script mkerr.pl. Any changes
1363  * made after this point may be overwritten when the script is next run.
1364  */
1365 void ERR_load_EVP_strings(void);
1366 
1367 /* Error codes for the EVP functions. */
1368 
1369 /* Function codes. */
1370 #define EVP_F_AEAD_AES_GCM_INIT				 187
1371 #define EVP_F_AEAD_AES_GCM_OPEN				 188
1372 #define EVP_F_AEAD_AES_GCM_SEAL				 189
1373 #define EVP_F_AEAD_CHACHA20_POLY1305_INIT		 192
1374 #define EVP_F_AEAD_CHACHA20_POLY1305_OPEN		 193
1375 #define EVP_F_AEAD_CHACHA20_POLY1305_SEAL		 194
1376 #define EVP_F_AEAD_CTX_OPEN				 185
1377 #define EVP_F_AEAD_CTX_SEAL				 186
1378 #define EVP_F_AESNI_INIT_KEY				 165
1379 #define EVP_F_AESNI_XTS_CIPHER				 176
1380 #define EVP_F_AES_INIT_KEY				 133
1381 #define EVP_F_AES_XTS					 172
1382 #define EVP_F_AES_XTS_CIPHER				 175
1383 #define EVP_F_ALG_MODULE_INIT				 177
1384 #define EVP_F_CAMELLIA_INIT_KEY				 159
1385 #define EVP_F_CMAC_INIT					 173
1386 #define EVP_F_D2I_PKEY					 100
1387 #define EVP_F_DO_SIGVER_INIT				 161
1388 #define EVP_F_DSAPKEY2PKCS8				 134
1389 #define EVP_F_DSA_PKEY2PKCS8				 135
1390 #define EVP_F_ECDSA_PKEY2PKCS8				 129
1391 #define EVP_F_ECKEY_PKEY2PKCS8				 132
1392 #define EVP_F_EVP_AEAD_CTX_INIT				 180
1393 #define EVP_F_EVP_AEAD_CTX_OPEN				 190
1394 #define EVP_F_EVP_AEAD_CTX_SEAL				 191
1395 #define EVP_F_EVP_BYTESTOKEY				 200
1396 #define EVP_F_EVP_CIPHERINIT_EX				 123
1397 #define EVP_F_EVP_CIPHER_CTX_COPY			 163
1398 #define EVP_F_EVP_CIPHER_CTX_CTRL			 124
1399 #define EVP_F_EVP_CIPHER_CTX_SET_KEY_LENGTH		 122
1400 #define EVP_F_EVP_CIPHER_GET_ASN1_IV			 201
1401 #define EVP_F_EVP_CIPHER_SET_ASN1_IV			 202
1402 #define EVP_F_EVP_DECRYPTFINAL_EX			 101
1403 #define EVP_F_EVP_DECRYPTUPDATE				 199
1404 #define EVP_F_EVP_DIGESTFINAL_EX			 196
1405 #define EVP_F_EVP_DIGESTINIT_EX				 128
1406 #define EVP_F_EVP_ENCRYPTFINAL_EX			 127
1407 #define EVP_F_EVP_ENCRYPTUPDATE				 198
1408 #define EVP_F_EVP_MD_CTX_COPY_EX			 110
1409 #define EVP_F_EVP_MD_CTX_CTRL				 195
1410 #define EVP_F_EVP_MD_SIZE				 162
1411 #define EVP_F_EVP_OPENINIT				 102
1412 #define EVP_F_EVP_PBE_ALG_ADD				 115
1413 #define EVP_F_EVP_PBE_ALG_ADD_TYPE			 160
1414 #define EVP_F_EVP_PBE_CIPHERINIT			 116
1415 #define EVP_F_EVP_PKCS82PKEY				 111
1416 #define EVP_F_EVP_PKCS82PKEY_BROKEN			 136
1417 #define EVP_F_EVP_PKEY2PKCS8_BROKEN			 113
1418 #define EVP_F_EVP_PKEY_COPY_PARAMETERS			 103
1419 #define EVP_F_EVP_PKEY_CTX_CTRL				 137
1420 #define EVP_F_EVP_PKEY_CTX_CTRL_STR			 150
1421 #define EVP_F_EVP_PKEY_CTX_DUP				 156
1422 #define EVP_F_EVP_PKEY_DECRYPT				 104
1423 #define EVP_F_EVP_PKEY_DECRYPT_INIT			 138
1424 #define EVP_F_EVP_PKEY_DECRYPT_OLD			 151
1425 #define EVP_F_EVP_PKEY_DERIVE				 153
1426 #define EVP_F_EVP_PKEY_DERIVE_INIT			 154
1427 #define EVP_F_EVP_PKEY_DERIVE_SET_PEER			 155
1428 #define EVP_F_EVP_PKEY_ENCRYPT				 105
1429 #define EVP_F_EVP_PKEY_ENCRYPT_INIT			 139
1430 #define EVP_F_EVP_PKEY_ENCRYPT_OLD			 152
1431 #define EVP_F_EVP_PKEY_GET1_DH				 119
1432 #define EVP_F_EVP_PKEY_GET1_DSA				 120
1433 #define EVP_F_EVP_PKEY_GET1_ECDSA			 130
1434 #define EVP_F_EVP_PKEY_GET1_EC_KEY			 131
1435 #define EVP_F_EVP_PKEY_GET1_RSA				 121
1436 #define EVP_F_EVP_PKEY_KEYGEN				 146
1437 #define EVP_F_EVP_PKEY_KEYGEN_INIT			 147
1438 #define EVP_F_EVP_PKEY_NEW				 106
1439 #define EVP_F_EVP_PKEY_PARAMGEN				 148
1440 #define EVP_F_EVP_PKEY_PARAMGEN_INIT			 149
1441 #define EVP_F_EVP_PKEY_SIGN				 140
1442 #define EVP_F_EVP_PKEY_SIGN_INIT			 141
1443 #define EVP_F_EVP_PKEY_VERIFY				 142
1444 #define EVP_F_EVP_PKEY_VERIFY_INIT			 143
1445 #define EVP_F_EVP_PKEY_VERIFY_RECOVER			 144
1446 #define EVP_F_EVP_PKEY_VERIFY_RECOVER_INIT		 145
1447 #define EVP_F_EVP_RIJNDAEL				 126
1448 #define EVP_F_EVP_SIGNFINAL				 107
1449 #define EVP_F_EVP_VERIFYFINAL				 108
1450 #define EVP_F_FIPS_CIPHERINIT				 166
1451 #define EVP_F_FIPS_CIPHER_CTX_COPY			 170
1452 #define EVP_F_FIPS_CIPHER_CTX_CTRL			 167
1453 #define EVP_F_FIPS_CIPHER_CTX_SET_KEY_LENGTH		 171
1454 #define EVP_F_FIPS_DIGESTINIT				 168
1455 #define EVP_F_FIPS_MD_CTX_COPY				 169
1456 #define EVP_F_HMAC_INIT_EX				 174
1457 #define EVP_F_INT_CTX_NEW				 157
1458 #define EVP_F_PKCS5_PBE_KEYIVGEN			 117
1459 #define EVP_F_PKCS5_V2_PBE_KEYIVGEN			 118
1460 #define EVP_F_PKCS5_V2_PBKDF2_KEYIVGEN			 164
1461 #define EVP_F_PKCS8_SET_BROKEN				 112
1462 #define EVP_F_PKEY_SET_TYPE				 158
1463 #define EVP_F_RC2_GET_ASN1_TYPE_AND_IV			 197
1464 #define EVP_F_RC2_MAGIC_TO_METH				 109
1465 #define EVP_F_RC5_CTRL					 125
1466 
1467 /* Reason codes. */
1468 #define EVP_R_AES_IV_SETUP_FAILED			 162
1469 #define EVP_R_AES_KEY_SETUP_FAILED			 143
1470 #define EVP_R_ASN1_LIB					 140
1471 #define EVP_R_BAD_BLOCK_LENGTH				 136
1472 #define EVP_R_BAD_DECRYPT				 100
1473 #define EVP_R_BAD_KEY_LENGTH				 137
1474 #define EVP_R_BN_DECODE_ERROR				 112
1475 #define EVP_R_BN_PUBKEY_ERROR				 113
1476 #define EVP_R_BUFFER_TOO_SMALL				 155
1477 #define EVP_R_CAMELLIA_KEY_SETUP_FAILED			 157
1478 #define EVP_R_CIPHER_PARAMETER_ERROR			 122
1479 #define EVP_R_COMMAND_NOT_SUPPORTED			 147
1480 #define EVP_R_CTRL_NOT_IMPLEMENTED			 132
1481 #define EVP_R_CTRL_OPERATION_NOT_IMPLEMENTED		 133
1482 #define EVP_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH		 138
1483 #define EVP_R_DECODE_ERROR				 114
1484 #define EVP_R_DIFFERENT_KEY_TYPES			 101
1485 #define EVP_R_DIFFERENT_PARAMETERS			 153
1486 #define EVP_R_DISABLED_FOR_FIPS				 163
1487 #define EVP_R_ENCODE_ERROR				 115
1488 #define EVP_R_ERROR_LOADING_SECTION			 165
1489 #define EVP_R_ERROR_SETTING_FIPS_MODE			 166
1490 #define EVP_R_EVP_PBE_CIPHERINIT_ERROR			 119
1491 #define EVP_R_EXPECTING_AN_HMAC_KEY			 174
1492 #define EVP_R_EXPECTING_AN_RSA_KEY			 127
1493 #define EVP_R_EXPECTING_A_DH_KEY			 128
1494 #define EVP_R_EXPECTING_A_DSA_KEY			 129
1495 #define EVP_R_EXPECTING_A_ECDSA_KEY			 141
1496 #define EVP_R_EXPECTING_A_EC_KEY			 142
1497 #define EVP_R_FIPS_MODE_NOT_SUPPORTED			 167
1498 #define EVP_R_INITIALIZATION_ERROR			 134
1499 #define EVP_R_INPUT_NOT_INITIALIZED			 111
1500 #define EVP_R_INVALID_DIGEST				 152
1501 #define EVP_R_INVALID_FIPS_MODE				 168
1502 #define EVP_R_INVALID_KEY_LENGTH			 130
1503 #define EVP_R_INVALID_OPERATION				 148
1504 #define EVP_R_IV_TOO_LARGE				 102
1505 #define EVP_R_KEYGEN_FAILURE				 120
1506 #define EVP_R_MESSAGE_DIGEST_IS_NULL			 159
1507 #define EVP_R_METHOD_NOT_SUPPORTED			 144
1508 #define EVP_R_MISSING_PARAMETERS			 103
1509 #define EVP_R_NO_CIPHER_SET				 131
1510 #define EVP_R_NO_DEFAULT_DIGEST				 158
1511 #define EVP_R_NO_DIGEST_SET				 139
1512 #define EVP_R_NO_DSA_PARAMETERS				 116
1513 #define EVP_R_NO_KEY_SET				 154
1514 #define EVP_R_NO_OPERATION_SET				 149
1515 #define EVP_R_NO_SIGN_FUNCTION_CONFIGURED		 104
1516 #define EVP_R_NO_VERIFY_FUNCTION_CONFIGURED		 105
1517 #define EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE	 150
1518 #define EVP_R_OPERATON_NOT_INITIALIZED			 151
1519 #define EVP_R_OUTPUT_ALIASES_INPUT			 172
1520 #define EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE			 117
1521 #define EVP_R_PRIVATE_KEY_DECODE_ERROR			 145
1522 #define EVP_R_PRIVATE_KEY_ENCODE_ERROR			 146
1523 #define EVP_R_PUBLIC_KEY_NOT_RSA			 106
1524 #define EVP_R_TAG_TOO_LARGE				 171
1525 #define EVP_R_TOO_LARGE					 164
1526 #define EVP_R_UNKNOWN_CIPHER				 160
1527 #define EVP_R_UNKNOWN_DIGEST				 161
1528 #define EVP_R_UNKNOWN_OPTION				 169
1529 #define EVP_R_UNKNOWN_PBE_ALGORITHM			 121
1530 #define EVP_R_UNSUPORTED_NUMBER_OF_ROUNDS		 135
1531 #define EVP_R_UNSUPPORTED_ALGORITHM			 156
1532 #define EVP_R_UNSUPPORTED_CIPHER			 107
1533 #define EVP_R_UNSUPPORTED_KEYLENGTH			 123
1534 #define EVP_R_UNSUPPORTED_KEY_DERIVATION_FUNCTION	 124
1535 #define EVP_R_UNSUPPORTED_KEY_SIZE			 108
1536 #define EVP_R_UNSUPPORTED_PRF				 125
1537 #define EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM		 118
1538 #define EVP_R_WRAP_MODE_NOT_ALLOWED			 170
1539 #define EVP_R_UNSUPPORTED_SALT_TYPE			 126
1540 #define EVP_R_WRONG_FINAL_BLOCK_LENGTH			 109
1541 #define EVP_R_WRONG_PUBLIC_KEY_TYPE			 110
1542 
1543 #ifdef  __cplusplus
1544 }
1545 #endif
1546 #endif
1547