evp.h revision 63249
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 * $FreeBSD: head/crypto/openssl/crypto/evp/evp.h 62030 2000-06-24 06:50:58Z markm $
59 */
60
61#ifndef HEADER_ENVELOPE_H
62#define HEADER_ENVELOPE_H
63
64#ifdef	__cplusplus
65extern "C" {
66#endif
67
68#ifndef NO_MD2
69#include <openssl/md2.h>
70#endif
71#ifndef NO_MD5
72#include <openssl/md5.h>
73#endif
74#ifndef NO_SHA
75#include <openssl/sha.h>
76#endif
77#ifndef NO_RIPEMD
78#include <openssl/ripemd.h>
79#endif
80#ifndef NO_DES
81#include <openssl/des.h>
82#endif
83#ifndef NO_RC4
84#include <openssl/rc4.h>
85#endif
86#ifndef NO_RC2
87#include <openssl/rc2.h>
88#endif
89#ifndef NO_RC5
90#include <openssl/rc5.h>
91#endif
92#ifndef NO_BF
93#include <openssl/blowfish.h>
94#endif
95#ifndef NO_CAST
96#include <openssl/cast.h>
97#endif
98#ifndef NO_IDEA
99#include <openssl/idea.h>
100#endif
101#ifndef NO_MDC2
102#include <openssl/mdc2.h>
103#endif
104
105#define EVP_RC2_KEY_SIZE		16
106#define EVP_RC4_KEY_SIZE		16
107#define EVP_BLOWFISH_KEY_SIZE		16
108#define EVP_CAST5_KEY_SIZE		16
109#define EVP_RC5_32_12_16_KEY_SIZE	16
110#define EVP_MAX_MD_SIZE			(16+20) /* The SSLv3 md5+sha1 type */
111#define EVP_MAX_KEY_LENGTH		24
112#define EVP_MAX_IV_LENGTH		8
113
114#define PKCS5_SALT_LEN			8
115/* Default PKCS#5 iteration count */
116#define PKCS5_DEFAULT_ITER		2048
117
118#ifndef NO_RSA
119#include <openssl/rsa.h>
120#endif
121
122#ifndef NO_DSA
123#include <openssl/dsa.h>
124#endif
125
126#ifndef NO_DH
127#include <openssl/dh.h>
128#endif
129
130#include <openssl/objects.h>
131
132#define EVP_PK_RSA	0x0001
133#define EVP_PK_DSA	0x0002
134#define EVP_PK_DH	0x0004
135#define EVP_PKT_SIGN	0x0010
136#define EVP_PKT_ENC	0x0020
137#define EVP_PKT_EXCH	0x0040
138#define EVP_PKS_RSA	0x0100
139#define EVP_PKS_DSA	0x0200
140#define EVP_PKT_EXP	0x1000 /* <= 512 bit key */
141
142#define EVP_PKEY_NONE	NID_undef
143#define EVP_PKEY_RSA	NID_rsaEncryption
144#define EVP_PKEY_RSA2	NID_rsa
145#define EVP_PKEY_DSA	NID_dsa
146#define EVP_PKEY_DSA1	NID_dsa_2
147#define EVP_PKEY_DSA2	NID_dsaWithSHA
148#define EVP_PKEY_DSA3	NID_dsaWithSHA1
149#define EVP_PKEY_DSA4	NID_dsaWithSHA1_2
150#define EVP_PKEY_DH	NID_dhKeyAgreement
151
152/* Type needs to be a bit field
153 * Sub-type needs to be for variations on the method, as in, can it do
154 * arbitrary encryption.... */
155typedef struct evp_pkey_st
156	{
157	int type;
158	int save_type;
159	int references;
160	union	{
161		char *ptr;
162#ifndef NO_RSA
163		struct rsa_st *rsa;	/* RSA */
164#endif
165#ifndef NO_DSA
166		struct dsa_st *dsa;	/* DSA */
167#endif
168#ifndef NO_DH
169		struct dh_st *dh;	/* DH */
170#endif
171		} pkey;
172	int save_parameters;
173	STACK /*X509_ATTRIBUTE*/ *attributes; /* [ 0 ] */
174	} EVP_PKEY;
175
176#define EVP_PKEY_MO_SIGN	0x0001
177#define EVP_PKEY_MO_VERIFY	0x0002
178#define EVP_PKEY_MO_ENCRYPT	0x0004
179#define EVP_PKEY_MO_DECRYPT	0x0008
180
181#if 0
182/* This structure is required to tie the message digest and signing together.
183 * The lookup can be done by md/pkey_method, oid, oid/pkey_method, or
184 * oid, md and pkey.
185 * This is required because for various smart-card perform the digest and
186 * signing/verification on-board.  To handle this case, the specific
187 * EVP_MD and EVP_PKEY_METHODs need to be closely associated.
188 * When a PKEY is created, it will have a EVP_PKEY_METHOD associated with it.
189 * This can either be software or a token to provide the required low level
190 * routines.
191 */
192typedef struct evp_pkey_md_st
193	{
194	int oid;
195	EVP_MD *md;
196	EVP_PKEY_METHOD *pkey;
197	} EVP_PKEY_MD;
198
199#define EVP_rsa_md2() \
200		EVP_PKEY_MD_add(NID_md2WithRSAEncryption,\
201			EVP_rsa_pkcs1(),EVP_md2())
202#define EVP_rsa_md5() \
203		EVP_PKEY_MD_add(NID_md5WithRSAEncryption,\
204			EVP_rsa_pkcs1(),EVP_md5())
205#define EVP_rsa_sha0() \
206		EVP_PKEY_MD_add(NID_shaWithRSAEncryption,\
207			EVP_rsa_pkcs1(),EVP_sha())
208#define EVP_rsa_sha1() \
209		EVP_PKEY_MD_add(NID_sha1WithRSAEncryption,\
210			EVP_rsa_pkcs1(),EVP_sha1())
211#define EVP_rsa_ripemd160() \
212		EVP_PKEY_MD_add(NID_ripemd160WithRSA,\
213			EVP_rsa_pkcs1(),EVP_ripemd160())
214#define EVP_rsa_mdc2() \
215		EVP_PKEY_MD_add(NID_mdc2WithRSA,\
216			EVP_rsa_octet_string(),EVP_mdc2())
217#define EVP_dsa_sha() \
218		EVP_PKEY_MD_add(NID_dsaWithSHA,\
219			EVP_dsa(),EVP_mdc2())
220#define EVP_dsa_sha1() \
221		EVP_PKEY_MD_add(NID_dsaWithSHA1,\
222			EVP_dsa(),EVP_sha1())
223
224typedef struct evp_pkey_method_st
225	{
226	char *name;
227	int flags;
228	int type;		/* RSA, DSA, an SSLeay specific constant */
229	int oid;		/* For the pub-key type */
230	int encrypt_oid;	/* pub/priv key encryption */
231
232	int (*sign)();
233	int (*verify)();
234	struct	{
235		int
236		int (*set)();	/* get and/or set the underlying type */
237		int (*get)();
238		int (*encrypt)();
239		int (*decrypt)();
240		int (*i2d)();
241		int (*d2i)();
242		int (*dup)();
243		} pub,priv;
244	int (*set_asn1_parameters)();
245	int (*get_asn1_parameters)();
246	} EVP_PKEY_METHOD;
247#endif
248
249#ifndef EVP_MD
250typedef struct env_md_st
251	{
252	int type;
253	int pkey_type;
254	int md_size;
255	void (*init)();
256	void (*update)();
257	void (*final)();
258
259	int (*sign)();
260	int (*verify)();
261	int required_pkey_type[5]; /*EVP_PKEY_xxx */
262	int block_size;
263	int ctx_size; /* how big does the ctx need to be */
264	} EVP_MD;
265
266
267
268#define EVP_PKEY_NULL_method	NULL,NULL,{0,0,0,0}
269
270#ifndef NO_DSA
271#define EVP_PKEY_DSA_method	DSA_sign,DSA_verify, \
272				{EVP_PKEY_DSA,EVP_PKEY_DSA2,EVP_PKEY_DSA3, \
273					EVP_PKEY_DSA4,0}
274#else
275#define EVP_PKEY_DSA_method	EVP_PKEY_NULL_method
276#endif
277
278#ifndef NO_RSA
279#define EVP_PKEY_RSA_method	RSA_sign,RSA_verify, \
280				{EVP_PKEY_RSA,EVP_PKEY_RSA2,0,0}
281#define EVP_PKEY_RSA_ASN1_OCTET_STRING_method \
282				RSA_sign_ASN1_OCTET_STRING, \
283				RSA_verify_ASN1_OCTET_STRING, \
284				{EVP_PKEY_RSA,EVP_PKEY_RSA2,0,0}
285#else
286#define EVP_PKEY_RSA_method	EVP_PKEY_NULL_method
287#define EVP_PKEY_RSA_ASN1_OCTET_STRING_method EVP_PKEY_NULL_method
288#endif
289
290#endif /* !EVP_MD */
291
292typedef struct env_md_ctx_st
293	{
294	const EVP_MD *digest;
295	union	{
296		unsigned char base[4];
297#ifndef NO_MD2
298		MD2_CTX md2;
299#endif
300#ifndef NO_MD5
301		MD5_CTX md5;
302#endif
303#ifndef NO_RIPEMD
304		RIPEMD160_CTX ripemd160;
305#endif
306#ifndef NO_SHA
307		SHA_CTX sha;
308#endif
309#ifndef NO_MDC2
310		MDC2_CTX mdc2;
311#endif
312		} md;
313	} EVP_MD_CTX;
314
315typedef struct evp_cipher_st
316	{
317	int nid;
318	int block_size;
319	int key_len;
320	int iv_len;
321	void (*init)();		/* init for encryption */
322	void (*do_cipher)();	/* encrypt data */
323	void (*cleanup)();	/* used by cipher method */
324	int ctx_size;		/* how big the ctx needs to be */
325	/* int set_asn1_parameters(EVP_CIPHER_CTX,ASN1_TYPE *); */
326	int (*set_asn1_parameters)(); /* Populate a ASN1_TYPE with parameters */
327	/* int get_asn1_parameters(EVP_CIPHER_CTX,ASN1_TYPE *); */
328	int (*get_asn1_parameters)(); /* Get parameters from a ASN1_TYPE */
329	} EVP_CIPHER;
330
331typedef struct evp_cipher_info_st
332	{
333	const EVP_CIPHER *cipher;
334	unsigned char iv[EVP_MAX_IV_LENGTH];
335	} EVP_CIPHER_INFO;
336
337typedef struct evp_cipher_ctx_st
338	{
339	const EVP_CIPHER *cipher;
340	int encrypt;		/* encrypt or decrypt */
341	int buf_len;		/* number we have left */
342
343	unsigned char  oiv[EVP_MAX_IV_LENGTH];	/* original iv */
344	unsigned char  iv[EVP_MAX_IV_LENGTH];	/* working iv */
345	unsigned char buf[EVP_MAX_IV_LENGTH];	/* saved partial block */
346	int num;				/* used by cfb/ofb mode */
347
348	char *app_data;		/* application stuff */
349	union	{
350#ifndef NO_RC4
351		struct
352			{
353			unsigned char key[EVP_RC4_KEY_SIZE];
354			RC4_KEY ks;	/* working key */
355			} rc4;
356#endif
357#ifndef NO_DES
358		des_key_schedule des_ks;/* key schedule */
359		struct
360			{
361			des_key_schedule ks;/* key schedule */
362			des_cblock inw;
363			des_cblock outw;
364			} desx_cbc;
365		struct
366			{
367			des_key_schedule ks1;/* key schedule */
368			des_key_schedule ks2;/* key schedule (for ede) */
369			des_key_schedule ks3;/* key schedule (for ede3) */
370			} des_ede;
371#endif
372#ifndef NO_IDEA
373		IDEA_KEY_SCHEDULE idea_ks;/* key schedule */
374#endif
375#ifndef NO_RC2
376		RC2_KEY rc2_ks;/* key schedule */
377#endif
378#ifndef NO_RC5
379		RC5_32_KEY rc5_ks;/* key schedule */
380#endif
381#ifndef NO_BF
382		BF_KEY bf_ks;/* key schedule */
383#endif
384#ifndef NO_CAST
385		CAST_KEY cast_ks;/* key schedule */
386#endif
387		} c;
388	} EVP_CIPHER_CTX;
389
390typedef struct evp_Encode_Ctx_st
391	{
392	int num;	/* number saved in a partial encode/decode */
393	int length;	/* The length is either the output line length
394			 * (in input bytes) or the shortest input line
395			 * length that is ok.  Once decoding begins,
396			 * the length is adjusted up each time a longer
397			 * line is decoded */
398	unsigned char enc_data[80];	/* data to encode */
399	int line_num;	/* number read on current line */
400	int expect_nl;
401	} EVP_ENCODE_CTX;
402
403/* Password based encryption function */
404typedef int (EVP_PBE_KEYGEN)(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
405		ASN1_TYPE *param, EVP_CIPHER *cipher,
406                EVP_MD *md, int en_de);
407
408#define EVP_PKEY_assign_RSA(pkey,rsa) EVP_PKEY_assign((pkey),EVP_PKEY_RSA,\
409					(char *)(rsa))
410#define EVP_PKEY_assign_DSA(pkey,dsa) EVP_PKEY_assign((pkey),EVP_PKEY_DSA,\
411					(char *)(dsa))
412#define EVP_PKEY_assign_DH(pkey,dh) EVP_PKEY_assign((pkey),EVP_PKEY_DH,\
413					(char *)(dh))
414
415/* Add some extra combinations */
416#define EVP_get_digestbynid(a) EVP_get_digestbyname(OBJ_nid2sn(a))
417#define EVP_get_digestbyobj(a) EVP_get_digestbynid(OBJ_obj2nid(a))
418#define EVP_get_cipherbynid(a) EVP_get_cipherbyname(OBJ_nid2sn(a))
419#define EVP_get_cipherbyobj(a) EVP_get_cipherbynid(OBJ_obj2nid(a))
420
421#define EVP_MD_type(e)			((e)->type)
422#define EVP_MD_pkey_type(e)		((e)->pkey_type)
423#define EVP_MD_size(e)			((e)->md_size)
424#define EVP_MD_block_size(e)		((e)->block_size)
425
426#define EVP_MD_CTX_md(e)		((e)->digest)
427#define EVP_MD_CTX_size(e)		EVP_MD_size((e)->digest)
428#define EVP_MD_CTX_block_size(e)	EVP_MD_block_size((e)->digest)
429#define EVP_MD_CTX_type(e)		EVP_MD_type((e)->digest)
430
431#define EVP_CIPHER_nid(e)		((e)->nid)
432#define EVP_CIPHER_block_size(e)	((e)->block_size)
433#define EVP_CIPHER_key_length(e)	((e)->key_len)
434#define EVP_CIPHER_iv_length(e)		((e)->iv_len)
435
436#define EVP_CIPHER_CTX_cipher(e)	((e)->cipher)
437#define EVP_CIPHER_CTX_nid(e)		((e)->cipher->nid)
438#define EVP_CIPHER_CTX_block_size(e)	((e)->cipher->block_size)
439#define EVP_CIPHER_CTX_key_length(e)	((e)->cipher->key_len)
440#define EVP_CIPHER_CTX_iv_length(e)	((e)->cipher->iv_len)
441#define EVP_CIPHER_CTX_get_app_data(e)	((e)->app_data)
442#define EVP_CIPHER_CTX_set_app_data(e,d) ((e)->app_data=(char *)(d))
443#define EVP_CIPHER_CTX_type(c)         EVP_CIPHER_type(EVP_CIPHER_CTX_cipher(c))
444
445#define EVP_ENCODE_LENGTH(l)	(((l+2)/3*4)+(l/48+1)*2+80)
446#define EVP_DECODE_LENGTH(l)	((l+3)/4*3+80)
447
448#define EVP_SignInit(a,b)		EVP_DigestInit(a,b)
449#define EVP_SignUpdate(a,b,c)		EVP_DigestUpdate(a,b,c)
450#define	EVP_VerifyInit(a,b)		EVP_DigestInit(a,b)
451#define	EVP_VerifyUpdate(a,b,c)		EVP_DigestUpdate(a,b,c)
452#define EVP_OpenUpdate(a,b,c,d,e)	EVP_DecryptUpdate(a,b,c,d,e)
453#define EVP_SealUpdate(a,b,c,d,e)	EVP_EncryptUpdate(a,b,c,d,e)
454
455#ifdef CONST_STRICT
456void BIO_set_md(BIO *,const EVP_MD *md);
457#else
458# define BIO_set_md(b,md)		BIO_ctrl(b,BIO_C_SET_MD,0,(char *)md)
459#endif
460#define BIO_get_md(b,mdp)		BIO_ctrl(b,BIO_C_GET_MD,0,(char *)mdp)
461#define BIO_get_md_ctx(b,mdcp)     BIO_ctrl(b,BIO_C_GET_MD_CTX,0,(char *)mdcp)
462#define BIO_get_cipher_status(b)	BIO_ctrl(b,BIO_C_GET_CIPHER_STATUS,0,NULL)
463#define BIO_get_cipher_ctx(b,c_pp)	BIO_ctrl(b,BIO_C_GET_CIPHER_CTX,0,(char *)c_pp)
464
465#define	EVP_Cipher(c,o,i,l)	(c)->cipher->do_cipher((c),(o),(i),(l))
466
467#define EVP_add_cipher_alias(n,alias) \
468	OBJ_NAME_add((alias),OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS,(n))
469#define EVP_add_digest_alias(n,alias) \
470	OBJ_NAME_add((alias),OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS,(n))
471#define EVP_delete_cipher_alias(alias) \
472	OBJ_NAME_remove(alias,OBJ_NAME_TYPE_CIPHER_METH|OBJ_NAME_ALIAS);
473#define EVP_delete_digest_alias(alias) \
474	OBJ_NAME_remove(alias,OBJ_NAME_TYPE_MD_METH|OBJ_NAME_ALIAS);
475
476
477int     EVP_MD_CTX_copy(EVP_MD_CTX *out,EVP_MD_CTX *in);
478void	EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type);
479void	EVP_DigestUpdate(EVP_MD_CTX *ctx,const void *d,
480			 unsigned int cnt);
481void	EVP_DigestFinal(EVP_MD_CTX *ctx,unsigned char *md,unsigned int *s);
482
483int	EVP_read_pw_string(char *buf,int length,const char *prompt,int verify);
484void	EVP_set_pw_prompt(char *prompt);
485char *	EVP_get_pw_prompt(void);
486
487int	EVP_BytesToKey(const EVP_CIPHER *type,EVP_MD *md,unsigned char *salt,
488		unsigned char *data, int datal, int count,
489		unsigned char *key,unsigned char *iv);
490
491void	EVP_EncryptInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *type,
492		unsigned char *key, unsigned char *iv);
493void	EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
494		int *outl, unsigned char *in, int inl);
495void	EVP_EncryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
496
497void	EVP_DecryptInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *type,
498		unsigned char *key, unsigned char *iv);
499void	EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
500		int *outl, unsigned char *in, int inl);
501int	EVP_DecryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
502
503void	EVP_CipherInit(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *type,
504		       unsigned char *key,unsigned char *iv,int enc);
505void	EVP_CipherUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
506		int *outl, unsigned char *in, int inl);
507int	EVP_CipherFinal(EVP_CIPHER_CTX *ctx, unsigned char *outm, int *outl);
508
509int	EVP_SignFinal(EVP_MD_CTX *ctx,unsigned char *md,unsigned int *s,
510		EVP_PKEY *pkey);
511
512int	EVP_VerifyFinal(EVP_MD_CTX *ctx,unsigned char *sigbuf,
513		unsigned int siglen,EVP_PKEY *pkey);
514
515int	EVP_OpenInit(EVP_CIPHER_CTX *ctx,EVP_CIPHER *type,unsigned char *ek,
516		int ekl,unsigned char *iv,EVP_PKEY *priv);
517int	EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
518
519int	EVP_SealInit(EVP_CIPHER_CTX *ctx, EVP_CIPHER *type, unsigned char **ek,
520		int *ekl, unsigned char *iv,EVP_PKEY **pubk, int npubk);
521void	EVP_SealFinal(EVP_CIPHER_CTX *ctx,unsigned char *out,int *outl);
522
523void	EVP_EncodeInit(EVP_ENCODE_CTX *ctx);
524void	EVP_EncodeUpdate(EVP_ENCODE_CTX *ctx,unsigned char *out,
525		int *outl,unsigned char *in,int inl);
526void	EVP_EncodeFinal(EVP_ENCODE_CTX *ctx,unsigned char *out,int *outl);
527int	EVP_EncodeBlock(unsigned char *t, const unsigned char *f, int n);
528
529void	EVP_DecodeInit(EVP_ENCODE_CTX *ctx);
530int	EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx,unsigned char *out,int *outl,
531		unsigned char *in, int inl);
532int	EVP_DecodeFinal(EVP_ENCODE_CTX *ctx, unsigned
533		char *out, int *outl);
534int	EVP_DecodeBlock(unsigned char *t, const unsigned char *f, int n);
535
536void	ERR_load_EVP_strings(void );
537
538void EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *a);
539void EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *a);
540
541#ifdef HEADER_BIO_H
542BIO_METHOD *BIO_f_md(void);
543BIO_METHOD *BIO_f_base64(void);
544BIO_METHOD *BIO_f_cipher(void);
545BIO_METHOD *BIO_f_reliable(void);
546void BIO_set_cipher(BIO *b,const EVP_CIPHER *c,unsigned char *k,
547	unsigned char *i, int enc);
548#endif
549
550EVP_MD *EVP_md_null(void);
551EVP_MD *EVP_md2(void);
552EVP_MD *EVP_md5(void);
553EVP_MD *EVP_sha(void);
554EVP_MD *EVP_sha1(void);
555EVP_MD *EVP_dss(void);
556EVP_MD *EVP_dss1(void);
557EVP_MD *EVP_mdc2(void);
558EVP_MD *EVP_ripemd160(void);
559
560EVP_CIPHER *EVP_enc_null(void);		/* does nothing :-) */
561EVP_CIPHER *EVP_des_ecb(void);
562EVP_CIPHER *EVP_des_ede(void);
563EVP_CIPHER *EVP_des_ede3(void);
564EVP_CIPHER *EVP_des_cfb(void);
565EVP_CIPHER *EVP_des_ede_cfb(void);
566EVP_CIPHER *EVP_des_ede3_cfb(void);
567EVP_CIPHER *EVP_des_ofb(void);
568EVP_CIPHER *EVP_des_ede_ofb(void);
569EVP_CIPHER *EVP_des_ede3_ofb(void);
570EVP_CIPHER *EVP_des_cbc(void);
571EVP_CIPHER *EVP_des_ede_cbc(void);
572EVP_CIPHER *EVP_des_ede3_cbc(void);
573EVP_CIPHER *EVP_desx_cbc(void);
574EVP_CIPHER *EVP_rc4(void);
575EVP_CIPHER *EVP_rc4_40(void);
576EVP_CIPHER *EVP_idea_ecb(void);
577EVP_CIPHER *EVP_idea_cfb(void);
578EVP_CIPHER *EVP_idea_ofb(void);
579EVP_CIPHER *EVP_idea_cbc(void);
580EVP_CIPHER *EVP_rc2_ecb(void);
581EVP_CIPHER *EVP_rc2_cbc(void);
582EVP_CIPHER *EVP_rc2_40_cbc(void);
583EVP_CIPHER *EVP_rc2_64_cbc(void);
584EVP_CIPHER *EVP_rc2_cfb(void);
585EVP_CIPHER *EVP_rc2_ofb(void);
586EVP_CIPHER *EVP_bf_ecb(void);
587EVP_CIPHER *EVP_bf_cbc(void);
588EVP_CIPHER *EVP_bf_cfb(void);
589EVP_CIPHER *EVP_bf_ofb(void);
590EVP_CIPHER *EVP_cast5_ecb(void);
591EVP_CIPHER *EVP_cast5_cbc(void);
592EVP_CIPHER *EVP_cast5_cfb(void);
593EVP_CIPHER *EVP_cast5_ofb(void);
594EVP_CIPHER *EVP_rc5_32_12_16_cbc(void);
595EVP_CIPHER *EVP_rc5_32_12_16_ecb(void);
596EVP_CIPHER *EVP_rc5_32_12_16_cfb(void);
597EVP_CIPHER *EVP_rc5_32_12_16_ofb(void);
598
599void OpenSSL_add_all_algorithms(void);
600void OpenSSL_add_all_ciphers(void);
601void OpenSSL_add_all_digests(void);
602#define SSLeay_add_all_algorithms() OpenSSL_add_all_algorithms()
603#define SSLeay_add_all_ciphers() OpenSSL_add_all_ciphers()
604#define SSLeay_add_all_digests() OpenSSL_add_all_digests()
605
606int EVP_add_cipher(EVP_CIPHER *cipher);
607int EVP_add_digest(EVP_MD *digest);
608
609const EVP_CIPHER *EVP_get_cipherbyname(const char *name);
610const EVP_MD *EVP_get_digestbyname(const char *name);
611void EVP_cleanup(void);
612
613int		EVP_PKEY_decrypt(unsigned char *dec_key,unsigned char *enc_key,
614			int enc_key_len,EVP_PKEY *private_key);
615int		EVP_PKEY_encrypt(unsigned char *enc_key,
616			unsigned char *key,int key_len,EVP_PKEY *pub_key);
617int		EVP_PKEY_type(int type);
618int		EVP_PKEY_bits(EVP_PKEY *pkey);
619int		EVP_PKEY_size(EVP_PKEY *pkey);
620int 		EVP_PKEY_assign(EVP_PKEY *pkey,int type,char *key);
621#ifndef NO_RSA
622int 		EVP_PKEY_set1_RSA(EVP_PKEY *pkey,RSA *key);
623RSA *		EVP_PKEY_get1_RSA(EVP_PKEY *pkey);
624#endif
625#ifndef NO_DSA
626int 		EVP_PKEY_set1_DSA(EVP_PKEY *pkey,DSA *key);
627DSA *		EVP_PKEY_get1_DSA(EVP_PKEY *pkey);
628#endif
629#ifndef NO_DH
630int 		EVP_PKEY_set1_DH(EVP_PKEY *pkey,DH *key);
631DH *		EVP_PKEY_get1_DH(EVP_PKEY *pkey);
632#endif
633EVP_PKEY *	EVP_PKEY_new(void);
634void		EVP_PKEY_free(EVP_PKEY *pkey);
635EVP_PKEY *	d2i_PublicKey(int type,EVP_PKEY **a, unsigned char **pp,
636			long length);
637int		i2d_PublicKey(EVP_PKEY *a, unsigned char **pp);
638
639EVP_PKEY *	d2i_PrivateKey(int type,EVP_PKEY **a, unsigned char **pp,
640			long length);
641EVP_PKEY *	d2i_AutoPrivateKey(EVP_PKEY **a, unsigned char **pp,
642			long length);
643int		i2d_PrivateKey(EVP_PKEY *a, unsigned char **pp);
644
645int EVP_PKEY_copy_parameters(EVP_PKEY *to,EVP_PKEY *from);
646int EVP_PKEY_missing_parameters(EVP_PKEY *pkey);
647int EVP_PKEY_save_parameters(EVP_PKEY *pkey,int mode);
648int EVP_PKEY_cmp_parameters(EVP_PKEY *a,EVP_PKEY *b);
649
650int EVP_CIPHER_type(const EVP_CIPHER *ctx);
651
652/* calls methods */
653int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
654int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type);
655
656/* These are used by EVP_CIPHER methods */
657int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c,ASN1_TYPE *type);
658int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c,ASN1_TYPE *type);
659
660/* PKCS5 password based encryption */
661int PKCS5_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
662			 ASN1_TYPE *param, EVP_CIPHER *cipher, EVP_MD *md,
663			 int en_de);
664int PKCS5_PBKDF2_HMAC_SHA1(const char *pass, int passlen,
665			   unsigned char *salt, int saltlen, int iter,
666			   int keylen, unsigned char *out);
667int PKCS5_v2_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
668			 ASN1_TYPE *param, EVP_CIPHER *cipher, EVP_MD *md,
669			 int en_de);
670
671void PKCS5_PBE_add(void);
672
673int EVP_PBE_CipherInit (ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
674	     ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de);
675int EVP_PBE_alg_add(int nid, EVP_CIPHER *cipher, EVP_MD *md,
676		    EVP_PBE_KEYGEN *keygen);
677void EVP_PBE_cleanup(void);
678
679/* BEGIN ERROR CODES */
680/* The following lines are auto generated by the script mkerr.pl. Any changes
681 * made after this point may be overwritten when the script is next run.
682 */
683
684/* Error codes for the EVP functions. */
685
686/* Function codes. */
687#define EVP_F_D2I_PKEY					 100
688#define EVP_F_EVP_DECRYPTFINAL				 101
689#define EVP_F_EVP_MD_CTX_COPY				 110
690#define EVP_F_EVP_OPENINIT				 102
691#define EVP_F_EVP_PBE_ALG_ADD				 115
692#define EVP_F_EVP_PBE_CIPHERINIT			 116
693#define EVP_F_EVP_PKCS82PKEY				 111
694#define EVP_F_EVP_PKCS8_SET_BROKEN			 112
695#define EVP_F_EVP_PKEY2PKCS8				 113
696#define EVP_F_EVP_PKEY_COPY_PARAMETERS			 103
697#define EVP_F_EVP_PKEY_DECRYPT				 104
698#define EVP_F_EVP_PKEY_ENCRYPT				 105
699#define EVP_F_EVP_PKEY_GET1_DH				 119
700#define EVP_F_EVP_PKEY_GET1_DSA				 120
701#define EVP_F_EVP_PKEY_GET1_RSA				 121
702#define EVP_F_EVP_PKEY_NEW				 106
703#define EVP_F_EVP_SIGNFINAL				 107
704#define EVP_F_EVP_VERIFYFINAL				 108
705#define EVP_F_PKCS5_PBE_KEYIVGEN			 117
706#define EVP_F_PKCS5_V2_PBE_KEYIVGEN			 118
707#define EVP_F_RC2_MAGIC_TO_METH				 109
708
709/* Reason codes. */
710#define EVP_R_BAD_DECRYPT				 100
711#define EVP_R_BN_DECODE_ERROR				 112
712#define EVP_R_BN_PUBKEY_ERROR				 113
713#define EVP_R_CIPHER_PARAMETER_ERROR			 122
714#define EVP_R_DECODE_ERROR				 114
715#define EVP_R_DIFFERENT_KEY_TYPES			 101
716#define EVP_R_ENCODE_ERROR				 115
717#define EVP_R_EVP_PBE_CIPHERINIT_ERROR			 119
718#define EVP_R_EXPECTING_AN_RSA_KEY			 127
719#define EVP_R_EXPECTING_A_DH_KEY			 128
720#define EVP_R_EXPECTING_A_DSA_KEY			 129
721#define EVP_R_INPUT_NOT_INITIALIZED			 111
722#define EVP_R_IV_TOO_LARGE				 102
723#define EVP_R_KEYGEN_FAILURE				 120
724#define EVP_R_MISSING_PARAMETERS			 103
725#define EVP_R_NO_DSA_PARAMETERS				 116
726#define EVP_R_NO_SIGN_FUNCTION_CONFIGURED		 104
727#define EVP_R_NO_VERIFY_FUNCTION_CONFIGURED		 105
728#define EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE			 117
729#define EVP_R_PUBLIC_KEY_NOT_RSA			 106
730#define EVP_R_UNKNOWN_PBE_ALGORITHM			 121
731#define EVP_R_UNSUPPORTED_CIPHER			 107
732#define EVP_R_UNSUPPORTED_KEYLENGTH			 123
733#define EVP_R_UNSUPPORTED_KEY_DERIVATION_FUNCTION	 124
734#define EVP_R_UNSUPPORTED_KEY_SIZE			 108
735#define EVP_R_UNSUPPORTED_PRF				 125
736#define EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM		 118
737#define EVP_R_UNSUPPORTED_SALT_TYPE			 126
738#define EVP_R_WRONG_FINAL_BLOCK_LENGTH			 109
739#define EVP_R_WRONG_PUBLIC_KEY_TYPE			 110
740
741#ifdef  __cplusplus
742}
743#endif
744#endif
745
746