xref: /openbsd-src/lib/libcrypto/evp/evp.h (revision 2b0358df1d88d06ef4139321dd05bd5e05d91eaf)
1 /* crypto/evp/evp.h */
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 #ifdef OPENSSL_ALGORITHM_DEFINES
63 # include <openssl/opensslconf.h>
64 #else
65 # define OPENSSL_ALGORITHM_DEFINES
66 # include <openssl/opensslconf.h>
67 # undef OPENSSL_ALGORITHM_DEFINES
68 #endif
69 
70 #include <openssl/ossl_typ.h>
71 
72 #include <openssl/symhacks.h>
73 
74 #ifndef OPENSSL_NO_BIO
75 #include <openssl/bio.h>
76 #endif
77 
78 #ifdef OPENSSL_FIPS
79 #include <openssl/fips.h>
80 #endif
81 
82 /*
83 #define EVP_RC2_KEY_SIZE		16
84 #define EVP_RC4_KEY_SIZE		16
85 #define EVP_BLOWFISH_KEY_SIZE		16
86 #define EVP_CAST5_KEY_SIZE		16
87 #define EVP_RC5_32_12_16_KEY_SIZE	16
88 */
89 #define EVP_MAX_MD_SIZE			64	/* longest known is SHA512 */
90 #define EVP_MAX_KEY_LENGTH		32
91 #define EVP_MAX_IV_LENGTH		16
92 #define EVP_MAX_BLOCK_LENGTH		32
93 
94 #define PKCS5_SALT_LEN			8
95 /* Default PKCS#5 iteration count */
96 #define PKCS5_DEFAULT_ITER		2048
97 
98 #include <openssl/objects.h>
99 
100 #define EVP_PK_RSA	0x0001
101 #define EVP_PK_DSA	0x0002
102 #define EVP_PK_DH	0x0004
103 #define EVP_PK_EC	0x0008
104 #define EVP_PKT_SIGN	0x0010
105 #define EVP_PKT_ENC	0x0020
106 #define EVP_PKT_EXCH	0x0040
107 #define EVP_PKS_RSA	0x0100
108 #define EVP_PKS_DSA	0x0200
109 #define EVP_PKS_EC	0x0400
110 #define EVP_PKT_EXP	0x1000 /* <= 512 bit key */
111 
112 #define EVP_PKEY_NONE	NID_undef
113 #define EVP_PKEY_RSA	NID_rsaEncryption
114 #define EVP_PKEY_RSA2	NID_rsa
115 #define EVP_PKEY_DSA	NID_dsa
116 #define EVP_PKEY_DSA1	NID_dsa_2
117 #define EVP_PKEY_DSA2	NID_dsaWithSHA
118 #define EVP_PKEY_DSA3	NID_dsaWithSHA1
119 #define EVP_PKEY_DSA4	NID_dsaWithSHA1_2
120 #define EVP_PKEY_DH	NID_dhKeyAgreement
121 #define EVP_PKEY_EC	NID_X9_62_id_ecPublicKey
122 
123 #ifdef	__cplusplus
124 extern "C" {
125 #endif
126 
127 /* Type needs to be a bit field
128  * Sub-type needs to be for variations on the method, as in, can it do
129  * arbitrary encryption.... */
130 struct evp_pkey_st
131 	{
132 	int type;
133 	int save_type;
134 	int references;
135 	union	{
136 		char *ptr;
137 #ifndef OPENSSL_NO_RSA
138 		struct rsa_st *rsa;	/* RSA */
139 #endif
140 #ifndef OPENSSL_NO_DSA
141 		struct dsa_st *dsa;	/* DSA */
142 #endif
143 #ifndef OPENSSL_NO_DH
144 		struct dh_st *dh;	/* DH */
145 #endif
146 #ifndef OPENSSL_NO_EC
147 		struct ec_key_st *ec;	/* ECC */
148 #endif
149 		} pkey;
150 	int save_parameters;
151 	STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
152 	} /* EVP_PKEY */;
153 
154 #define EVP_PKEY_MO_SIGN	0x0001
155 #define EVP_PKEY_MO_VERIFY	0x0002
156 #define EVP_PKEY_MO_ENCRYPT	0x0004
157 #define EVP_PKEY_MO_DECRYPT	0x0008
158 
159 #if 0
160 /* This structure is required to tie the message digest and signing together.
161  * The lookup can be done by md/pkey_method, oid, oid/pkey_method, or
162  * oid, md and pkey.
163  * This is required because for various smart-card perform the digest and
164  * signing/verification on-board.  To handle this case, the specific
165  * EVP_MD and EVP_PKEY_METHODs need to be closely associated.
166  * When a PKEY is created, it will have a EVP_PKEY_METHOD associated with it.
167  * This can either be software or a token to provide the required low level
168  * routines.
169  */
170 typedef struct evp_pkey_md_st
171 	{
172 	int oid;
173 	EVP_MD *md;
174 	EVP_PKEY_METHOD *pkey;
175 	} EVP_PKEY_MD;
176 
177 #define EVP_rsa_md2() \
178 		EVP_PKEY_MD_add(NID_md2WithRSAEncryption,\
179 			EVP_rsa_pkcs1(),EVP_md2())
180 #define EVP_rsa_md5() \
181 		EVP_PKEY_MD_add(NID_md5WithRSAEncryption,\
182 			EVP_rsa_pkcs1(),EVP_md5())
183 #define EVP_rsa_sha0() \
184 		EVP_PKEY_MD_add(NID_shaWithRSAEncryption,\
185 			EVP_rsa_pkcs1(),EVP_sha())
186 #define EVP_rsa_sha1() \
187 		EVP_PKEY_MD_add(NID_sha1WithRSAEncryption,\
188 			EVP_rsa_pkcs1(),EVP_sha1())
189 #define EVP_rsa_ripemd160() \
190 		EVP_PKEY_MD_add(NID_ripemd160WithRSA,\
191 			EVP_rsa_pkcs1(),EVP_ripemd160())
192 #define EVP_rsa_mdc2() \
193 		EVP_PKEY_MD_add(NID_mdc2WithRSA,\
194 			EVP_rsa_octet_string(),EVP_mdc2())
195 #define EVP_dsa_sha() \
196 		EVP_PKEY_MD_add(NID_dsaWithSHA,\
197 			EVP_dsa(),EVP_sha())
198 #define EVP_dsa_sha1() \
199 		EVP_PKEY_MD_add(NID_dsaWithSHA1,\
200 			EVP_dsa(),EVP_sha1())
201 
202 typedef struct evp_pkey_method_st
203 	{
204 	char *name;
205 	int flags;
206 	int type;		/* RSA, DSA, an SSLeay specific constant */
207 	int oid;		/* For the pub-key type */
208 	int encrypt_oid;	/* pub/priv key encryption */
209 
210 	int (*sign)();
211 	int (*verify)();
212 	struct	{
213 		int (*set)();	/* get and/or set the underlying type */
214 		int (*get)();
215 		int (*encrypt)();
216 		int (*decrypt)();
217 		int (*i2d)();
218 		int (*d2i)();
219 		int (*dup)();
220 		} pub,priv;
221 	int (*set_asn1_parameters)();
222 	int (*get_asn1_parameters)();
223 	} EVP_PKEY_METHOD;
224 #endif
225 
226 #ifndef EVP_MD
227 struct env_md_st
228 	{
229 	int type;
230 	int pkey_type;
231 	int md_size;
232 	unsigned long flags;
233 	int (*init)(EVP_MD_CTX *ctx);
234 	int (*update)(EVP_MD_CTX *ctx,const void *data,size_t count);
235 	int (*final)(EVP_MD_CTX *ctx,unsigned char *md);
236 	int (*copy)(EVP_MD_CTX *to,const EVP_MD_CTX *from);
237 	int (*cleanup)(EVP_MD_CTX *ctx);
238 
239 	/* FIXME: prototype these some day */
240 	int (*sign)(int type, const unsigned char *m, unsigned int m_length,
241 		    unsigned char *sigret, unsigned int *siglen, void *key);
242 	int (*verify)(int type, const unsigned char *m, unsigned int m_length,
243 		      const unsigned char *sigbuf, unsigned int siglen,
244 		      void *key);
245 	int required_pkey_type[5]; /*EVP_PKEY_xxx */
246 	int block_size;
247 	int ctx_size; /* how big does the ctx->md_data need to be */
248 	} /* EVP_MD */;
249 
250 typedef int evp_sign_method(int type,const unsigned char *m,
251 			    unsigned int m_length,unsigned char *sigret,
252 			    unsigned int *siglen, void *key);
253 typedef int evp_verify_method(int type,const unsigned char *m,
254 			    unsigned int m_length,const unsigned char *sigbuf,
255 			    unsigned int siglen, void *key);
256 
257 typedef struct
258 	{
259 	EVP_MD_CTX *mctx;
260 	void *key;
261 	} EVP_MD_SVCTX;
262 
263 #define EVP_MD_FLAG_ONESHOT	0x0001 /* digest can only handle a single
264 					* block */
265 
266 #define EVP_MD_FLAG_FIPS	0x0400 /* Note if suitable for use in FIPS mode */
267 
268 #define EVP_MD_FLAG_SVCTX	0x0800 /* pass EVP_MD_SVCTX to sign/verify */
269 
270 #define EVP_PKEY_NULL_method	NULL,NULL,{0,0,0,0}
271 
272 #ifndef OPENSSL_NO_DSA
273 #define EVP_PKEY_DSA_method	(evp_sign_method *)DSA_sign, \
274 				(evp_verify_method *)DSA_verify, \
275 				{EVP_PKEY_DSA,EVP_PKEY_DSA2,EVP_PKEY_DSA3, \
276 					EVP_PKEY_DSA4,0}
277 #else
278 #define EVP_PKEY_DSA_method	EVP_PKEY_NULL_method
279 #endif
280 
281 #ifndef OPENSSL_NO_ECDSA
282 #define EVP_PKEY_ECDSA_method   (evp_sign_method *)ECDSA_sign, \
283 				(evp_verify_method *)ECDSA_verify, \
284                                  {EVP_PKEY_EC,0,0,0}
285 #else
286 #define EVP_PKEY_ECDSA_method   EVP_PKEY_NULL_method
287 #endif
288 
289 #ifndef OPENSSL_NO_RSA
290 #define EVP_PKEY_RSA_method	(evp_sign_method *)RSA_sign, \
291 				(evp_verify_method *)RSA_verify, \
292 				{EVP_PKEY_RSA,EVP_PKEY_RSA2,0,0}
293 #define EVP_PKEY_RSA_ASN1_OCTET_STRING_method \
294 				(evp_sign_method *)RSA_sign_ASN1_OCTET_STRING, \
295 				(evp_verify_method *)RSA_verify_ASN1_OCTET_STRING, \
296 				{EVP_PKEY_RSA,EVP_PKEY_RSA2,0,0}
297 #else
298 #define EVP_PKEY_RSA_method	EVP_PKEY_NULL_method
299 #define EVP_PKEY_RSA_ASN1_OCTET_STRING_method EVP_PKEY_NULL_method
300 #endif
301 
302 #endif /* !EVP_MD */
303 
304 struct env_md_ctx_st
305 	{
306 	const EVP_MD *digest;
307 	ENGINE *engine; /* functional reference if 'digest' is ENGINE-provided */
308 	unsigned long flags;
309 	void *md_data;
310 	} /* EVP_MD_CTX */;
311 
312 /* values for EVP_MD_CTX flags */
313 
314 #define EVP_MD_CTX_FLAG_ONESHOT		0x0001 /* digest update will be called
315 						* once only */
316 #define EVP_MD_CTX_FLAG_CLEANED		0x0002 /* context has already been
317 						* cleaned */
318 #define EVP_MD_CTX_FLAG_REUSE		0x0004 /* Don't free up ctx->md_data
319 						* in EVP_MD_CTX_cleanup */
320 #define EVP_MD_CTX_FLAG_NON_FIPS_ALLOW	0x0008	/* Allow use of non FIPS digest
321 						 * in FIPS mode */
322 
323 #define EVP_MD_CTX_FLAG_PAD_MASK	0xF0	/* RSA mode to use */
324 #define EVP_MD_CTX_FLAG_PAD_PKCS1	0x00	/* PKCS#1 v1.5 mode */
325 #define EVP_MD_CTX_FLAG_PAD_X931	0x10	/* X9.31 mode */
326 #define EVP_MD_CTX_FLAG_PAD_PSS		0x20	/* PSS mode */
327 #define M_EVP_MD_CTX_FLAG_PSS_SALT(ctx) \
328 		((ctx->flags>>16) &0xFFFF) /* seed length */
329 #define EVP_MD_CTX_FLAG_PSS_MDLEN	0xFFFF	/* salt len same as digest */
330 #define EVP_MD_CTX_FLAG_PSS_MREC	0xFFFE	/* salt max or auto recovered */
331 
332 struct evp_cipher_st
333 	{
334 	int nid;
335 	int block_size;
336 	int key_len;		/* Default value for variable length ciphers */
337 	int iv_len;
338 	unsigned long flags;	/* Various flags */
339 	int (*init)(EVP_CIPHER_CTX *ctx, const unsigned char *key,
340 		    const unsigned char *iv, int enc);	/* init key */
341 	int (*do_cipher)(EVP_CIPHER_CTX *ctx, unsigned char *out,
342 			 const unsigned char *in, unsigned int inl);/* encrypt/decrypt data */
343 	int (*cleanup)(EVP_CIPHER_CTX *); /* cleanup ctx */
344 	int ctx_size;		/* how big ctx->cipher_data needs to be */
345 	int (*set_asn1_parameters)(EVP_CIPHER_CTX *, ASN1_TYPE *); /* Populate a ASN1_TYPE with parameters */
346 	int (*get_asn1_parameters)(EVP_CIPHER_CTX *, ASN1_TYPE *); /* Get parameters from a ASN1_TYPE */
347 	int (*ctrl)(EVP_CIPHER_CTX *, int type, int arg, void *ptr); /* Miscellaneous operations */
348 	void *app_data;		/* Application data */
349 	} /* EVP_CIPHER */;
350 
351 /* Values for cipher flags */
352 
353 /* Modes for ciphers */
354 
355 #define		EVP_CIPH_STREAM_CIPHER		0x0
356 #define		EVP_CIPH_ECB_MODE		0x1
357 #define		EVP_CIPH_CBC_MODE		0x2
358 #define		EVP_CIPH_CFB_MODE		0x3
359 #define		EVP_CIPH_OFB_MODE		0x4
360 #define 	EVP_CIPH_MODE			0x7
361 /* Set if variable length cipher */
362 #define 	EVP_CIPH_VARIABLE_LENGTH	0x8
363 /* Set if the iv handling should be done by the cipher itself */
364 #define 	EVP_CIPH_CUSTOM_IV		0x10
365 /* Set if the cipher's init() function should be called if key is NULL */
366 #define 	EVP_CIPH_ALWAYS_CALL_INIT	0x20
367 /* Call ctrl() to init cipher parameters */
368 #define 	EVP_CIPH_CTRL_INIT		0x40
369 /* Don't use standard key length function */
370 #define 	EVP_CIPH_CUSTOM_KEY_LENGTH	0x80
371 /* Don't use standard block padding */
372 #define 	EVP_CIPH_NO_PADDING		0x100
373 /* cipher handles random key generation */
374 #define 	EVP_CIPH_RAND_KEY		0x200
375 /* Note if suitable for use in FIPS mode */
376 #define		EVP_CIPH_FLAG_FIPS		0x400
377 /* Allow non FIPS cipher in FIPS mode */
378 #define		EVP_CIPH_FLAG_NON_FIPS_ALLOW	0x800
379 /* Allow use default ASN1 get/set iv */
380 #define		EVP_CIPH_FLAG_DEFAULT_ASN1	0x1000
381 /* Buffer length in bits not bytes: CFB1 mode only */
382 #define		EVP_CIPH_FLAG_LENGTH_BITS	0x2000
383 
384 /* ctrl() values */
385 
386 #define		EVP_CTRL_INIT			0x0
387 #define 	EVP_CTRL_SET_KEY_LENGTH		0x1
388 #define 	EVP_CTRL_GET_RC2_KEY_BITS	0x2
389 #define 	EVP_CTRL_SET_RC2_KEY_BITS	0x3
390 #define 	EVP_CTRL_GET_RC5_ROUNDS		0x4
391 #define 	EVP_CTRL_SET_RC5_ROUNDS		0x5
392 #define		EVP_CTRL_SET_ACSS_MODE		0x6
393 #define 	EVP_CTRL_RAND_KEY		0x7
394 
395 typedef struct evp_cipher_info_st
396 	{
397 	const EVP_CIPHER *cipher;
398 	unsigned char iv[EVP_MAX_IV_LENGTH];
399 	} EVP_CIPHER_INFO;
400 
401 struct evp_cipher_ctx_st
402 	{
403 	const EVP_CIPHER *cipher;
404 	ENGINE *engine;	/* functional reference if 'cipher' is ENGINE-provided */
405 	int encrypt;		/* encrypt or decrypt */
406 	int buf_len;		/* number we have left */
407 
408 	unsigned char  oiv[EVP_MAX_IV_LENGTH];	/* original iv */
409 	unsigned char  iv[EVP_MAX_IV_LENGTH];	/* working iv */
410 	unsigned char buf[EVP_MAX_BLOCK_LENGTH];/* saved partial block */
411 	int num;				/* used by cfb/ofb mode */
412 
413 	void *app_data;		/* application stuff */
414 	int key_len;		/* May change for variable length cipher */
415 	unsigned long flags;	/* Various flags */
416 	void *cipher_data; /* per EVP data */
417 	int final_used;
418 	int block_mask;
419 	unsigned char final[EVP_MAX_BLOCK_LENGTH];/* possible final block */
420 	} /* EVP_CIPHER_CTX */;
421 
422 typedef struct evp_Encode_Ctx_st
423 	{
424 	int num;	/* number saved in a partial encode/decode */
425 	int length;	/* The length is either the output line length
426 			 * (in input bytes) or the shortest input line
427 			 * length that is ok.  Once decoding begins,
428 			 * the length is adjusted up each time a longer
429 			 * line is decoded */
430 	unsigned char enc_data[80];	/* data to encode */
431 	int line_num;	/* number read on current line */
432 	int expect_nl;
433 	} EVP_ENCODE_CTX;
434 
435 /* Password based encryption function */
436 typedef int (EVP_PBE_KEYGEN)(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
437 		ASN1_TYPE *param, const EVP_CIPHER *cipher,
438                 const EVP_MD *md, int en_de);
439 
440 #ifndef OPENSSL_NO_RSA
441 #define EVP_PKEY_assign_RSA(pkey,rsa) EVP_PKEY_assign((pkey),EVP_PKEY_RSA,\
442 					(char *)(rsa))
443 #endif
444 
445 #ifndef OPENSSL_NO_DSA
446 #define EVP_PKEY_assign_DSA(pkey,dsa) EVP_PKEY_assign((pkey),EVP_PKEY_DSA,\
447 					(char *)(dsa))
448 #endif
449 
450 #ifndef OPENSSL_NO_DH
451 #define EVP_PKEY_assign_DH(pkey,dh) EVP_PKEY_assign((pkey),EVP_PKEY_DH,\
452 					(char *)(dh))
453 #endif
454 
455 #ifndef OPENSSL_NO_EC
456 #define EVP_PKEY_assign_EC_KEY(pkey,eckey) EVP_PKEY_assign((pkey),EVP_PKEY_EC,\
457                                         (char *)(eckey))
458 #endif
459 
460 /* Add some extra combinations */
461 #define EVP_get_digestbynid(a) EVP_get_digestbyname(OBJ_nid2sn(a))
462 #define EVP_get_digestbyobj(a) EVP_get_digestbynid(OBJ_obj2nid(a))
463 #define EVP_get_cipherbynid(a) EVP_get_cipherbyname(OBJ_nid2sn(a))
464 #define EVP_get_cipherbyobj(a) EVP_get_cipherbynid(OBJ_obj2nid(a))
465 
466 /* Macros to reduce FIPS dependencies: do NOT use in applications */
467 #define M_EVP_MD_size(e)		((e)->md_size)
468 #define M_EVP_MD_block_size(e)		((e)->block_size)
469 #define M_EVP_MD_CTX_set_flags(ctx,flgs) ((ctx)->flags|=(flgs))
470 #define M_EVP_MD_CTX_clear_flags(ctx,flgs) ((ctx)->flags&=~(flgs))
471 #define M_EVP_MD_CTX_test_flags(ctx,flgs) ((ctx)->flags&(flgs))
472 #define M_EVP_MD_type(e)			((e)->type)
473 #define M_EVP_MD_CTX_type(e)		M_EVP_MD_type(M_EVP_MD_CTX_md(e))
474 #define M_EVP_MD_CTX_md(e)			((e)->digest)
475 
476 #define M_EVP_CIPHER_CTX_set_flags(ctx,flgs) ((ctx)->flags|=(flgs))
477 
478 int EVP_MD_type(const EVP_MD *md);
479 #define EVP_MD_nid(e)			EVP_MD_type(e)
480 #define EVP_MD_name(e)			OBJ_nid2sn(EVP_MD_nid(e))
481 int EVP_MD_pkey_type(const EVP_MD *md);
482 int EVP_MD_size(const EVP_MD *md);
483 int EVP_MD_block_size(const EVP_MD *md);
484 
485 const EVP_MD * EVP_MD_CTX_md(const EVP_MD_CTX *ctx);
486 #define EVP_MD_CTX_size(e)		EVP_MD_size(EVP_MD_CTX_md(e))
487 #define EVP_MD_CTX_block_size(e)	EVP_MD_block_size(EVP_MD_CTX_md(e))
488 #define EVP_MD_CTX_type(e)		EVP_MD_type(EVP_MD_CTX_md(e))
489 
490 int EVP_CIPHER_nid(const EVP_CIPHER *cipher);
491 #define EVP_CIPHER_name(e)		OBJ_nid2sn(EVP_CIPHER_nid(e))
492 int EVP_CIPHER_block_size(const EVP_CIPHER *cipher);
493 int EVP_CIPHER_key_length(const EVP_CIPHER *cipher);
494 int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher);
495 unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher);
496 #define EVP_CIPHER_mode(e)		(EVP_CIPHER_flags(e) & EVP_CIPH_MODE)
497 
498 const EVP_CIPHER * EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx);
499 int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx);
500 int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx);
501 int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx);
502 int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx);
503 void * EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx);
504 void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data);
505 #define EVP_CIPHER_CTX_type(c)         EVP_CIPHER_type(EVP_CIPHER_CTX_cipher(c))
506 unsigned long EVP_CIPHER_CTX_flags(const EVP_CIPHER_CTX *ctx);
507 #define EVP_CIPHER_CTX_mode(e)		(EVP_CIPHER_CTX_flags(e) & EVP_CIPH_MODE)
508 
509 #define EVP_ENCODE_LENGTH(l)	(((l+2)/3*4)+(l/48+1)*2+80)
510 #define EVP_DECODE_LENGTH(l)	((l+3)/4*3+80)
511 
512 #define EVP_SignInit_ex(a,b,c)		EVP_DigestInit_ex(a,b,c)
513 #define EVP_SignInit(a,b)		EVP_DigestInit(a,b)
514 #define EVP_SignUpdate(a,b,c)		EVP_DigestUpdate(a,b,c)
515 #define	EVP_VerifyInit_ex(a,b,c)	EVP_DigestInit_ex(a,b,c)
516 #define	EVP_VerifyInit(a,b)		EVP_DigestInit(a,b)
517 #define	EVP_VerifyUpdate(a,b,c)		EVP_DigestUpdate(a,b,c)
518 #define EVP_OpenUpdate(a,b,c,d,e)	EVP_DecryptUpdate(a,b,c,d,e)
519 #define EVP_SealUpdate(a,b,c,d,e)	EVP_EncryptUpdate(a,b,c,d,e)
520 
521 #ifdef CONST_STRICT
522 void BIO_set_md(BIO *,const EVP_MD *md);
523 #else
524 # define BIO_set_md(b,md)		BIO_ctrl(b,BIO_C_SET_MD,0,(char *)md)
525 #endif
526 #define BIO_get_md(b,mdp)		BIO_ctrl(b,BIO_C_GET_MD,0,(char *)mdp)
527 #define BIO_get_md_ctx(b,mdcp)     BIO_ctrl(b,BIO_C_GET_MD_CTX,0,(char *)mdcp)
528 #define BIO_set_md_ctx(b,mdcp)     BIO_ctrl(b,BIO_C_SET_MD_CTX,0,(char *)mdcp)
529 #define BIO_get_cipher_status(b)	BIO_ctrl(b,BIO_C_GET_CIPHER_STATUS,0,NULL)
530 #define BIO_get_cipher_ctx(b,c_pp)	BIO_ctrl(b,BIO_C_GET_CIPHER_CTX,0,(char *)c_pp)
531 
532 int EVP_Cipher(EVP_CIPHER_CTX *c,
533 		unsigned char *out,
534 		const unsigned char *in,
535 		unsigned int inl);
536 
537 #define EVP_add_cipher_alias(n,alias) \
538 	OBJ_NAME_add((alias),OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS,(n))
539 #define EVP_add_digest_alias(n,alias) \
540 	OBJ_NAME_add((alias),OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS,(n))
541 #define EVP_delete_cipher_alias(alias) \
542 	OBJ_NAME_remove(alias,OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS);
543 #define EVP_delete_digest_alias(alias) \
544 	OBJ_NAME_remove(alias,OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS);
545 
546 void	EVP_MD_CTX_init(EVP_MD_CTX *ctx);
547 int	EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx);
548 EVP_MD_CTX *EVP_MD_CTX_create(void);
549 void	EVP_MD_CTX_destroy(EVP_MD_CTX *ctx);
550 int     EVP_MD_CTX_copy_ex(EVP_MD_CTX *out,const EVP_MD_CTX *in);
551 void	EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags);
552 void	EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags);
553 int 	EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx,int flags);
554 int	EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl);
555 int	EVP_DigestUpdate(EVP_MD_CTX *ctx,const void *d,
556 			 size_t cnt);
557 int	EVP_DigestFinal_ex(EVP_MD_CTX *ctx,unsigned char *md,unsigned int *s);
558 int	EVP_Digest(const void *data, size_t count,
559 		unsigned char *md, unsigned int *size, const EVP_MD *type, ENGINE *impl);
560 
561 int     EVP_MD_CTX_copy(EVP_MD_CTX *out,const EVP_MD_CTX *in);
562 int	EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type);
563 int	EVP_DigestFinal(EVP_MD_CTX *ctx,unsigned char *md,unsigned int *s);
564 
565 int	EVP_read_pw_string(char *buf,int length,const char *prompt,int verify);
566 void	EVP_set_pw_prompt(const char *prompt);
567 char *	EVP_get_pw_prompt(void);
568 
569 int	EVP_BytesToKey(const EVP_CIPHER *type,const EVP_MD *md,
570 		const unsigned char *salt, const unsigned char *data,
571 		int datal, int count, unsigned char *key,unsigned char *iv);
572 
573 void	EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags);
574 void	EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags);
575 int 	EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx,int flags);
576 
577 int	EVP_EncryptInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *cipher,
578 		const unsigned char *key, const unsigned char *iv);
579 int	EVP_EncryptInit_ex(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *cipher, ENGINE *impl,
580 		const unsigned char *key, const unsigned char *iv);
581 int	EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
582 		int *outl, const unsigned char *in, int inl);
583 int	EVP_EncryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
584 int	EVP_EncryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
585 
586 int	EVP_DecryptInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *cipher,
587 		const unsigned char *key, const unsigned char *iv);
588 int	EVP_DecryptInit_ex(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *cipher, ENGINE *impl,
589 		const unsigned char *key, const unsigned char *iv);
590 int	EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
591 		int *outl, const unsigned char *in, int inl);
592 int	EVP_DecryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
593 int	EVP_DecryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
594 
595 int	EVP_CipherInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *cipher,
596 		       const unsigned char *key,const unsigned char *iv,
597 		       int enc);
598 int	EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *cipher, ENGINE *impl,
599 		       const unsigned char *key,const unsigned char *iv,
600 		       int enc);
601 int	EVP_CipherUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
602 		int *outl, const unsigned char *in, int inl);
603 int	EVP_CipherFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
604 int	EVP_CipherFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
605 
606 int	EVP_SignFinal(EVP_MD_CTX *ctx,unsigned char *md,unsigned int *s,
607 		EVP_PKEY *pkey);
608 
609 int	EVP_VerifyFinal(EVP_MD_CTX *ctx,const unsigned char *sigbuf,
610 		unsigned int siglen,EVP_PKEY *pkey);
611 
612 int	EVP_OpenInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *type,
613 		const unsigned char *ek, int ekl, const unsigned char *iv,
614 		EVP_PKEY *priv);
615 int	EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
616 
617 int	EVP_SealInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
618 		 unsigned char **ek, int *ekl, unsigned char *iv,
619 		EVP_PKEY **pubk, int npubk);
620 int	EVP_SealFinal(EVP_CIPHER_CTX *ctx,unsigned char *out,int *outl);
621 
622 void	EVP_EncodeInit(EVP_ENCODE_CTX *ctx);
623 void	EVP_EncodeUpdate(EVP_ENCODE_CTX *ctx,unsigned char *out,int *outl,
624 		const unsigned char *in,int inl);
625 void	EVP_EncodeFinal(EVP_ENCODE_CTX *ctx,unsigned char *out,int *outl);
626 int	EVP_EncodeBlock(unsigned char *t, const unsigned char *f, int n);
627 
628 void	EVP_DecodeInit(EVP_ENCODE_CTX *ctx);
629 int	EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx,unsigned char *out,int *outl,
630 		const unsigned char *in, int inl);
631 int	EVP_DecodeFinal(EVP_ENCODE_CTX *ctx, unsigned
632 		char *out, int *outl);
633 int	EVP_DecodeBlock(unsigned char *t, const unsigned char *f, int n);
634 
635 void EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *a);
636 int EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *a);
637 EVP_CIPHER_CTX *EVP_CIPHER_CTX_new(void);
638 void EVP_CIPHER_CTX_free(EVP_CIPHER_CTX *a);
639 int EVP_CIPHER_CTX_set_key_length(EVP_CIPHER_CTX *x, int keylen);
640 int EVP_CIPHER_CTX_set_padding(EVP_CIPHER_CTX *c, int pad);
641 int EVP_CIPHER_CTX_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr);
642 int EVP_CIPHER_CTX_rand_key(EVP_CIPHER_CTX *ctx, unsigned char *key);
643 
644 #ifndef OPENSSL_NO_BIO
645 BIO_METHOD *BIO_f_md(void);
646 BIO_METHOD *BIO_f_base64(void);
647 BIO_METHOD *BIO_f_cipher(void);
648 BIO_METHOD *BIO_f_reliable(void);
649 void BIO_set_cipher(BIO *b,const EVP_CIPHER *c,const unsigned char *k,
650 		const unsigned char *i, int enc);
651 #endif
652 
653 const EVP_MD *EVP_md_null(void);
654 #ifndef OPENSSL_NO_MD2
655 const EVP_MD *EVP_md2(void);
656 #endif
657 #ifndef OPENSSL_NO_MD4
658 const EVP_MD *EVP_md4(void);
659 #endif
660 #ifndef OPENSSL_NO_MD5
661 const EVP_MD *EVP_md5(void);
662 #endif
663 #ifndef OPENSSL_NO_SHA
664 const EVP_MD *EVP_sha(void);
665 const EVP_MD *EVP_sha1(void);
666 const EVP_MD *EVP_dss(void);
667 const EVP_MD *EVP_dss1(void);
668 const EVP_MD *EVP_ecdsa(void);
669 #endif
670 #ifndef OPENSSL_NO_SHA256
671 const EVP_MD *EVP_sha224(void);
672 const EVP_MD *EVP_sha256(void);
673 #endif
674 #ifndef OPENSSL_NO_SHA512
675 const EVP_MD *EVP_sha384(void);
676 const EVP_MD *EVP_sha512(void);
677 #endif
678 #ifndef OPENSSL_NO_MDC2
679 const EVP_MD *EVP_mdc2(void);
680 #endif
681 #ifndef OPENSSL_NO_RIPEMD
682 const EVP_MD *EVP_ripemd160(void);
683 #endif
684 const EVP_CIPHER *EVP_enc_null(void);		/* does nothing :-) */
685 #ifndef OPENSSL_NO_DES
686 const EVP_CIPHER *EVP_des_ecb(void);
687 const EVP_CIPHER *EVP_des_ede(void);
688 const EVP_CIPHER *EVP_des_ede3(void);
689 const EVP_CIPHER *EVP_des_ede_ecb(void);
690 const EVP_CIPHER *EVP_des_ede3_ecb(void);
691 const EVP_CIPHER *EVP_des_cfb64(void);
692 # define EVP_des_cfb EVP_des_cfb64
693 const EVP_CIPHER *EVP_des_cfb1(void);
694 const EVP_CIPHER *EVP_des_cfb8(void);
695 const EVP_CIPHER *EVP_des_ede_cfb64(void);
696 # define EVP_des_ede_cfb EVP_des_ede_cfb64
697 #if 0
698 const EVP_CIPHER *EVP_des_ede_cfb1(void);
699 const EVP_CIPHER *EVP_des_ede_cfb8(void);
700 #endif
701 const EVP_CIPHER *EVP_des_ede3_cfb64(void);
702 # define EVP_des_ede3_cfb EVP_des_ede3_cfb64
703 const EVP_CIPHER *EVP_des_ede3_cfb1(void);
704 const EVP_CIPHER *EVP_des_ede3_cfb8(void);
705 const EVP_CIPHER *EVP_des_ofb(void);
706 const EVP_CIPHER *EVP_des_ede_ofb(void);
707 const EVP_CIPHER *EVP_des_ede3_ofb(void);
708 const EVP_CIPHER *EVP_des_cbc(void);
709 const EVP_CIPHER *EVP_des_ede_cbc(void);
710 const EVP_CIPHER *EVP_des_ede3_cbc(void);
711 const EVP_CIPHER *EVP_desx_cbc(void);
712 /* This should now be supported through the dev_crypto ENGINE. But also, why are
713  * rc4 and md5 declarations made here inside a "NO_DES" precompiler branch? */
714 #if 0
715 # ifdef OPENSSL_OPENBSD_DEV_CRYPTO
716 const EVP_CIPHER *EVP_dev_crypto_des_ede3_cbc(void);
717 const EVP_CIPHER *EVP_dev_crypto_rc4(void);
718 const EVP_MD *EVP_dev_crypto_md5(void);
719 # endif
720 #endif
721 #endif
722 #ifndef OPENSSL_NO_RC4
723 const EVP_CIPHER *EVP_rc4(void);
724 const EVP_CIPHER *EVP_rc4_40(void);
725 #endif
726 #ifndef OPENSSL_NO_IDEA
727 const EVP_CIPHER *EVP_idea_ecb(void);
728 const EVP_CIPHER *EVP_idea_cfb64(void);
729 # define EVP_idea_cfb EVP_idea_cfb64
730 const EVP_CIPHER *EVP_idea_ofb(void);
731 const EVP_CIPHER *EVP_idea_cbc(void);
732 #endif
733 #ifndef OPENSSL_NO_RC2
734 const EVP_CIPHER *EVP_rc2_ecb(void);
735 const EVP_CIPHER *EVP_rc2_cbc(void);
736 const EVP_CIPHER *EVP_rc2_40_cbc(void);
737 const EVP_CIPHER *EVP_rc2_64_cbc(void);
738 const EVP_CIPHER *EVP_rc2_cfb64(void);
739 # define EVP_rc2_cfb EVP_rc2_cfb64
740 const EVP_CIPHER *EVP_rc2_ofb(void);
741 #endif
742 #ifndef OPENSSL_NO_BF
743 const EVP_CIPHER *EVP_bf_ecb(void);
744 const EVP_CIPHER *EVP_bf_cbc(void);
745 const EVP_CIPHER *EVP_bf_cfb64(void);
746 # define EVP_bf_cfb EVP_bf_cfb64
747 const EVP_CIPHER *EVP_bf_ofb(void);
748 #endif
749 #ifndef OPENSSL_NO_CAST
750 const EVP_CIPHER *EVP_cast5_ecb(void);
751 const EVP_CIPHER *EVP_cast5_cbc(void);
752 const EVP_CIPHER *EVP_cast5_cfb64(void);
753 # define EVP_cast5_cfb EVP_cast5_cfb64
754 const EVP_CIPHER *EVP_cast5_ofb(void);
755 #endif
756 #ifndef OPENSSL_NO_RC5
757 const EVP_CIPHER *EVP_rc5_32_12_16_cbc(void);
758 const EVP_CIPHER *EVP_rc5_32_12_16_ecb(void);
759 const EVP_CIPHER *EVP_rc5_32_12_16_cfb64(void);
760 # define EVP_rc5_32_12_16_cfb EVP_rc5_32_12_16_cfb64
761 const EVP_CIPHER *EVP_rc5_32_12_16_ofb(void);
762 #endif
763 #ifndef OPENSSL_NO_AES
764 const EVP_CIPHER *EVP_aes_128_ecb(void);
765 const EVP_CIPHER *EVP_aes_128_cbc(void);
766 const EVP_CIPHER *EVP_aes_128_cfb1(void);
767 const EVP_CIPHER *EVP_aes_128_cfb8(void);
768 const EVP_CIPHER *EVP_aes_128_cfb128(void);
769 # define EVP_aes_128_cfb EVP_aes_128_cfb128
770 const EVP_CIPHER *EVP_aes_128_ofb(void);
771 #if 0
772 const EVP_CIPHER *EVP_aes_128_ctr(void);
773 #endif
774 const EVP_CIPHER *EVP_aes_192_ecb(void);
775 const EVP_CIPHER *EVP_aes_192_cbc(void);
776 const EVP_CIPHER *EVP_aes_192_cfb1(void);
777 const EVP_CIPHER *EVP_aes_192_cfb8(void);
778 const EVP_CIPHER *EVP_aes_192_cfb128(void);
779 # define EVP_aes_192_cfb EVP_aes_192_cfb128
780 const EVP_CIPHER *EVP_aes_192_ofb(void);
781 #if 0
782 const EVP_CIPHER *EVP_aes_192_ctr(void);
783 #endif
784 const EVP_CIPHER *EVP_aes_256_ecb(void);
785 const EVP_CIPHER *EVP_aes_256_cbc(void);
786 const EVP_CIPHER *EVP_aes_256_cfb1(void);
787 const EVP_CIPHER *EVP_aes_256_cfb8(void);
788 const EVP_CIPHER *EVP_aes_256_cfb128(void);
789 # define EVP_aes_256_cfb EVP_aes_256_cfb128
790 const EVP_CIPHER *EVP_aes_256_ofb(void);
791 #if 0
792 const EVP_CIPHER *EVP_aes_256_ctr(void);
793 #endif
794 #endif
795 #ifndef OPENSSL_NO_ACSS
796 const EVP_CIPHER *EVP_acss(void);
797 #endif
798 #ifndef OPENSSL_NO_CAMELLIA
799 const EVP_CIPHER *EVP_camellia_128_ecb(void);
800 const EVP_CIPHER *EVP_camellia_128_cbc(void);
801 const EVP_CIPHER *EVP_camellia_128_cfb1(void);
802 const EVP_CIPHER *EVP_camellia_128_cfb8(void);
803 const EVP_CIPHER *EVP_camellia_128_cfb128(void);
804 # define EVP_camellia_128_cfb EVP_camellia_128_cfb128
805 const EVP_CIPHER *EVP_camellia_128_ofb(void);
806 const EVP_CIPHER *EVP_camellia_192_ecb(void);
807 const EVP_CIPHER *EVP_camellia_192_cbc(void);
808 const EVP_CIPHER *EVP_camellia_192_cfb1(void);
809 const EVP_CIPHER *EVP_camellia_192_cfb8(void);
810 const EVP_CIPHER *EVP_camellia_192_cfb128(void);
811 # define EVP_camellia_192_cfb EVP_camellia_192_cfb128
812 const EVP_CIPHER *EVP_camellia_192_ofb(void);
813 const EVP_CIPHER *EVP_camellia_256_ecb(void);
814 const EVP_CIPHER *EVP_camellia_256_cbc(void);
815 const EVP_CIPHER *EVP_camellia_256_cfb1(void);
816 const EVP_CIPHER *EVP_camellia_256_cfb8(void);
817 const EVP_CIPHER *EVP_camellia_256_cfb128(void);
818 # define EVP_camellia_256_cfb EVP_camellia_256_cfb128
819 const EVP_CIPHER *EVP_camellia_256_ofb(void);
820 #endif
821 
822 #ifndef OPENSSL_NO_SEED
823 const EVP_CIPHER *EVP_seed_ecb(void);
824 const EVP_CIPHER *EVP_seed_cbc(void);
825 const EVP_CIPHER *EVP_seed_cfb128(void);
826 # define EVP_seed_cfb EVP_seed_cfb128
827 const EVP_CIPHER *EVP_seed_ofb(void);
828 #endif
829 
830 void OPENSSL_add_all_algorithms_noconf(void);
831 void OPENSSL_add_all_algorithms_conf(void);
832 
833 #ifdef OPENSSL_LOAD_CONF
834 #define OpenSSL_add_all_algorithms() \
835 		OPENSSL_add_all_algorithms_conf()
836 #else
837 #define OpenSSL_add_all_algorithms() \
838 		OPENSSL_add_all_algorithms_noconf()
839 #endif
840 
841 void OpenSSL_add_all_ciphers(void);
842 void OpenSSL_add_all_digests(void);
843 #define SSLeay_add_all_algorithms() OpenSSL_add_all_algorithms()
844 #define SSLeay_add_all_ciphers() OpenSSL_add_all_ciphers()
845 #define SSLeay_add_all_digests() OpenSSL_add_all_digests()
846 
847 int EVP_add_cipher(const EVP_CIPHER *cipher);
848 int EVP_add_digest(const EVP_MD *digest);
849 
850 const EVP_CIPHER *EVP_get_cipherbyname(const char *name);
851 const EVP_MD *EVP_get_digestbyname(const char *name);
852 void EVP_cleanup(void);
853 
854 int		EVP_PKEY_decrypt(unsigned char *dec_key,
855 			const unsigned char *enc_key,int enc_key_len,
856 			EVP_PKEY *private_key);
857 int		EVP_PKEY_encrypt(unsigned char *enc_key,
858 			const unsigned char *key,int key_len,
859 			EVP_PKEY *pub_key);
860 int		EVP_PKEY_type(int type);
861 int		EVP_PKEY_bits(EVP_PKEY *pkey);
862 int		EVP_PKEY_size(EVP_PKEY *pkey);
863 int 		EVP_PKEY_assign(EVP_PKEY *pkey,int type,char *key);
864 
865 #ifndef OPENSSL_NO_RSA
866 struct rsa_st;
867 int EVP_PKEY_set1_RSA(EVP_PKEY *pkey,struct rsa_st *key);
868 struct rsa_st *EVP_PKEY_get1_RSA(EVP_PKEY *pkey);
869 #endif
870 #ifndef OPENSSL_NO_DSA
871 struct dsa_st;
872 int EVP_PKEY_set1_DSA(EVP_PKEY *pkey,struct dsa_st *key);
873 struct dsa_st *EVP_PKEY_get1_DSA(EVP_PKEY *pkey);
874 #endif
875 #ifndef OPENSSL_NO_DH
876 struct dh_st;
877 int EVP_PKEY_set1_DH(EVP_PKEY *pkey,struct dh_st *key);
878 struct dh_st *EVP_PKEY_get1_DH(EVP_PKEY *pkey);
879 #endif
880 #ifndef OPENSSL_NO_EC
881 struct ec_key_st;
882 int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey,struct ec_key_st *key);
883 struct ec_key_st *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey);
884 #endif
885 
886 EVP_PKEY *	EVP_PKEY_new(void);
887 void		EVP_PKEY_free(EVP_PKEY *pkey);
888 
889 EVP_PKEY *	d2i_PublicKey(int type,EVP_PKEY **a, const unsigned char **pp,
890 			long length);
891 int		i2d_PublicKey(EVP_PKEY *a, unsigned char **pp);
892 
893 EVP_PKEY *	d2i_PrivateKey(int type,EVP_PKEY **a, const unsigned char **pp,
894 			long length);
895 EVP_PKEY *	d2i_AutoPrivateKey(EVP_PKEY **a, const unsigned char **pp,
896 			long length);
897 int		i2d_PrivateKey(EVP_PKEY *a, unsigned char **pp);
898 
899 int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from);
900 int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey);
901 int EVP_PKEY_save_parameters(EVP_PKEY *pkey,int mode);
902 int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b);
903 
904 int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b);
905 
906 int EVP_CIPHER_type(const EVP_CIPHER *ctx);
907 
908 /* calls methods */
909 int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
910 int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
911 
912 /* These are used by EVP_CIPHER methods */
913 int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c,ASN1_TYPE *type);
914 int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c,ASN1_TYPE *type);
915 
916 /* PKCS5 password based encryption */
917 int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
918 			 ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md,
919 			 int en_de);
920 int PKCS5_PBKDF2_HMAC_SHA1(const char *pass, int passlen,
921 			   const unsigned char *salt, int saltlen, int iter,
922 			   int keylen, unsigned char *out);
923 int PKCS5_v2_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
924 			 ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md,
925 			 int en_de);
926 
927 void PKCS5_PBE_add(void);
928 
929 int EVP_PBE_CipherInit (ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
930 	     ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de);
931 int EVP_PBE_alg_add(int nid, const EVP_CIPHER *cipher, const EVP_MD *md,
932 		    EVP_PBE_KEYGEN *keygen);
933 void EVP_PBE_cleanup(void);
934 
935 #ifdef OPENSSL_FIPS
936 #ifndef OPENSSL_NO_ENGINE
937 void int_EVP_MD_set_engine_callbacks(
938 	int (*eng_md_init)(ENGINE *impl),
939 	int (*eng_md_fin)(ENGINE *impl),
940 	int (*eng_md_evp)
941 		(EVP_MD_CTX *ctx, const EVP_MD **ptype, ENGINE *impl));
942 void int_EVP_MD_init_engine_callbacks(void);
943 void int_EVP_CIPHER_set_engine_callbacks(
944 	int (*eng_ciph_fin)(ENGINE *impl),
945 	int (*eng_ciph_evp)
946 		(EVP_CIPHER_CTX *ctx, const EVP_CIPHER **pciph, ENGINE *impl));
947 void int_EVP_CIPHER_init_engine_callbacks(void);
948 #endif
949 #endif
950 
951 void EVP_add_alg_module(void);
952 
953 /* BEGIN ERROR CODES */
954 /* The following lines are auto generated by the script mkerr.pl. Any changes
955  * made after this point may be overwritten when the script is next run.
956  */
957 void ERR_load_EVP_strings(void);
958 
959 /* Error codes for the EVP functions. */
960 
961 /* Function codes. */
962 #define EVP_F_AES_INIT_KEY				 133
963 #define EVP_F_ALG_MODULE_INIT				 138
964 #define EVP_F_CAMELLIA_INIT_KEY				 159
965 #define EVP_F_D2I_PKEY					 100
966 #define EVP_F_DO_EVP_ENC_ENGINE				 140
967 #define EVP_F_DO_EVP_ENC_ENGINE_FULL			 141
968 #define EVP_F_DO_EVP_MD_ENGINE				 139
969 #define EVP_F_DO_EVP_MD_ENGINE_FULL			 142
970 #define EVP_F_DSAPKEY2PKCS8				 134
971 #define EVP_F_DSA_PKEY2PKCS8				 135
972 #define EVP_F_ECDSA_PKEY2PKCS8				 129
973 #define EVP_F_ECKEY_PKEY2PKCS8				 132
974 #define EVP_F_EVP_CIPHERINIT				 137
975 #define EVP_F_EVP_CIPHERINIT_EX				 123
976 #define EVP_F_EVP_CIPHER_CTX_CTRL			 124
977 #define EVP_F_EVP_CIPHER_CTX_SET_KEY_LENGTH		 122
978 #define EVP_F_EVP_DECRYPTFINAL_EX			 101
979 #define EVP_F_EVP_DIGESTINIT				 136
980 #define EVP_F_EVP_DIGESTINIT_EX				 128
981 #define EVP_F_EVP_ENCRYPTFINAL_EX			 127
982 #define EVP_F_EVP_MD_CTX_COPY_EX			 110
983 #define EVP_F_EVP_OPENINIT				 102
984 #define EVP_F_EVP_PBE_ALG_ADD				 115
985 #define EVP_F_EVP_PBE_CIPHERINIT			 116
986 #define EVP_F_EVP_PKCS82PKEY				 111
987 #define EVP_F_EVP_PKEY2PKCS8_BROKEN			 113
988 #define EVP_F_EVP_PKEY_COPY_PARAMETERS			 103
989 #define EVP_F_EVP_PKEY_DECRYPT				 104
990 #define EVP_F_EVP_PKEY_ENCRYPT				 105
991 #define EVP_F_EVP_PKEY_GET1_DH				 119
992 #define EVP_F_EVP_PKEY_GET1_DSA				 120
993 #define EVP_F_EVP_PKEY_GET1_ECDSA			 130
994 #define EVP_F_EVP_PKEY_GET1_EC_KEY			 131
995 #define EVP_F_EVP_PKEY_GET1_RSA				 121
996 #define EVP_F_EVP_PKEY_NEW				 106
997 #define EVP_F_EVP_RIJNDAEL				 126
998 #define EVP_F_EVP_SIGNFINAL				 107
999 #define EVP_F_EVP_VERIFYFINAL				 108
1000 #define EVP_F_PKCS5_PBE_KEYIVGEN			 117
1001 #define EVP_F_PKCS5_V2_PBE_KEYIVGEN			 118
1002 #define EVP_F_PKCS8_SET_BROKEN				 112
1003 #define EVP_F_RC2_MAGIC_TO_METH				 109
1004 #define EVP_F_RC5_CTRL					 125
1005 
1006 /* Reason codes. */
1007 #define EVP_R_AES_KEY_SETUP_FAILED			 143
1008 #define EVP_R_ASN1_LIB					 140
1009 #define EVP_R_BAD_BLOCK_LENGTH				 136
1010 #define EVP_R_BAD_DECRYPT				 100
1011 #define EVP_R_BAD_KEY_LENGTH				 137
1012 #define EVP_R_BN_DECODE_ERROR				 112
1013 #define EVP_R_BN_PUBKEY_ERROR				 113
1014 #define EVP_R_CAMELLIA_KEY_SETUP_FAILED			 157
1015 #define EVP_R_CIPHER_PARAMETER_ERROR			 122
1016 #define EVP_R_CTRL_NOT_IMPLEMENTED			 132
1017 #define EVP_R_CTRL_OPERATION_NOT_IMPLEMENTED		 133
1018 #define EVP_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH		 138
1019 #define EVP_R_DECODE_ERROR				 114
1020 #define EVP_R_DIFFERENT_KEY_TYPES			 101
1021 #define EVP_R_DISABLED_FOR_FIPS				 144
1022 #define EVP_R_ENCODE_ERROR				 115
1023 #define EVP_R_ERROR_LOADING_SECTION			 145
1024 #define EVP_R_ERROR_SETTING_FIPS_MODE			 146
1025 #define EVP_R_EVP_PBE_CIPHERINIT_ERROR			 119
1026 #define EVP_R_EXPECTING_AN_RSA_KEY			 127
1027 #define EVP_R_EXPECTING_A_DH_KEY			 128
1028 #define EVP_R_EXPECTING_A_DSA_KEY			 129
1029 #define EVP_R_EXPECTING_A_ECDSA_KEY			 141
1030 #define EVP_R_EXPECTING_A_EC_KEY			 142
1031 #define EVP_R_FIPS_MODE_NOT_SUPPORTED			 147
1032 #define EVP_R_INITIALIZATION_ERROR			 134
1033 #define EVP_R_INPUT_NOT_INITIALIZED			 111
1034 #define EVP_R_INVALID_FIPS_MODE				 148
1035 #define EVP_R_INVALID_KEY_LENGTH			 130
1036 #define EVP_R_IV_TOO_LARGE				 102
1037 #define EVP_R_KEYGEN_FAILURE				 120
1038 #define EVP_R_MISSING_PARAMETERS			 103
1039 #define EVP_R_NO_CIPHER_SET				 131
1040 #define EVP_R_NO_DIGEST_SET				 139
1041 #define EVP_R_NO_DSA_PARAMETERS				 116
1042 #define EVP_R_NO_SIGN_FUNCTION_CONFIGURED		 104
1043 #define EVP_R_NO_VERIFY_FUNCTION_CONFIGURED		 105
1044 #define EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE			 117
1045 #define EVP_R_PUBLIC_KEY_NOT_RSA			 106
1046 #define EVP_R_UNKNOWN_OPTION				 149
1047 #define EVP_R_UNKNOWN_PBE_ALGORITHM			 121
1048 #define EVP_R_UNSUPORTED_NUMBER_OF_ROUNDS		 135
1049 #define EVP_R_UNSUPPORTED_CIPHER			 107
1050 #define EVP_R_UNSUPPORTED_KEYLENGTH			 123
1051 #define EVP_R_UNSUPPORTED_KEY_DERIVATION_FUNCTION	 124
1052 #define EVP_R_UNSUPPORTED_KEY_SIZE			 108
1053 #define EVP_R_UNSUPPORTED_PRF				 125
1054 #define EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM		 118
1055 #define EVP_R_UNSUPPORTED_SALT_TYPE			 126
1056 #define EVP_R_WRONG_FINAL_BLOCK_LENGTH			 109
1057 #define EVP_R_WRONG_PUBLIC_KEY_TYPE			 110
1058 #define EVP_R_SEED_KEY_SETUP_FAILED			 162
1059 
1060 #ifdef  __cplusplus
1061 }
1062 #endif
1063 #endif
1064