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1/* crypto/rsa/rsa.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_RSA_H
60#define HEADER_RSA_H
61
62#ifdef __cplusplus
63extern "C" {
64#endif
65
66#include "bn.h"
67#include "crypto.h"
68
69typedef struct rsa_meth_st
70 {
71 char *name;
72 int (*rsa_pub_enc)();
73 int (*rsa_pub_dec)();
74 int (*rsa_priv_enc)();
75 int (*rsa_priv_dec)();
76 int (*rsa_mod_exp)(); /* Can be null */
77 int (*bn_mod_exp)(); /* Can be null */
78 int (*init)(/* RSA * */); /* called at new */
79 int (*finish)(/* RSA * */); /* called at free */
80
81 int flags; /* RSA_METHOD_FLAG_* things */
82 char *app_data; /* may be needed! */
83 } RSA_METHOD;
84
85typedef struct rsa_st
86 {
87 /* The first parameter is used to pickup errors where
88 * this is passed instead of aEVP_PKEY, it is set to 0 */
89 int pad;
90 int version;
91 RSA_METHOD *meth;
92 BIGNUM *n;
93 BIGNUM *e;
94 BIGNUM *d;
95 BIGNUM *p;
96 BIGNUM *q;
97 BIGNUM *dmp1;
98 BIGNUM *dmq1;
99 BIGNUM *iqmp;
100 /* be carefull using this if the RSA structure is shared */
101 CRYPTO_EX_DATA ex_data;
102 int references;
103 int flags;
104
105 /* Normally used to cached montgomery values */
106 char *method_mod_n;
107 char *method_mod_p;
108 char *method_mod_q;
109
110 BN_BLINDING *blinding;
111 } RSA;
112
113#define RSA_3 0x3L
114#define RSA_F4 0x10001L
115
116#define RSA_METHOD_FLAG_NO_CHECK 0x01 /* don't check pub/private match */
117#define RSA_FLAG_CACHE_PUBLIC 0x02
118#define RSA_FLAG_CACHE_PRIVATE 0x04
119#define RSA_FLAG_BLINDING 0x08
120#define RSA_FLAG_THREAD_SAFE 0x10
121
122#define RSA_PKCS1_PADDING 1
123#define RSA_SSLV23_PADDING 2
124#define RSA_NO_PADDING 3
125
126#define RSA_set_app_data(s,arg) RSA_set_ex_data(s,0,(char *)arg)
127#define RSA_get_app_data(s) RSA_get_ex_data(s,0)
128
129#ifndef NOPROTO
130RSA * RSA_new(void);
131RSA * RSA_new_method(RSA_METHOD *method);
132int RSA_size(RSA *);
133RSA * RSA_generate_key(int bits, unsigned long e,void
134 (*callback)(int,int,char *),char *cb_arg);
135 /* next 4 return -1 on error */
136int RSA_public_encrypt(int flen, unsigned char *from,
137 unsigned char *to, RSA *rsa,int padding);
138int RSA_private_encrypt(int flen, unsigned char *from,
139 unsigned char *to, RSA *rsa,int padding);
140int RSA_public_decrypt(int flen, unsigned char *from,
141 unsigned char *to, RSA *rsa,int padding);
142int RSA_private_decrypt(int flen, unsigned char *from,
143 unsigned char *to, RSA *rsa,int padding);
144void RSA_free (RSA *r);
145
146int RSA_flags(RSA *r);
147
148void RSA_set_default_method(RSA_METHOD *meth);
149
150/* If you have RSAref compiled in. */
151RSA_METHOD *RSA_PKCS1_RSAref(void);
152
153/* these are the actual SSLeay RSA functions */
154RSA_METHOD *RSA_PKCS1_SSLeay(void);
155
156void ERR_load_RSA_strings(void );
157
158RSA * d2i_RSAPublicKey(RSA **a, unsigned char **pp, long length);
159int i2d_RSAPublicKey(RSA *a, unsigned char **pp);
160RSA * d2i_RSAPrivateKey(RSA **a, unsigned char **pp, long length);
161int i2d_RSAPrivateKey(RSA *a, unsigned char **pp);
162#ifndef NO_FP_API
163int RSA_print_fp(FILE *fp, RSA *r,int offset);
164#endif
165
166#ifdef HEADER_BIO_H
167int RSA_print(BIO *bp, RSA *r,int offset);
168#endif
169
170int i2d_Netscape_RSA(RSA *a, unsigned char **pp, int (*cb)());
171RSA *d2i_Netscape_RSA(RSA **a, unsigned char **pp, long length, int (*cb)());
172/* Naughty internal function required elsewhere, to handle a MS structure
173 * that is the same as the netscape one :-) */
174RSA *d2i_Netscape_RSA_2(RSA **a, unsigned char **pp, long length, int (*cb)());
175
176/* The following 2 functions sign and verify a X509_SIG ASN1 object
177 * inside PKCS#1 padded RSA encryption */
178int RSA_sign(int type, unsigned char *m, unsigned int m_len,
179 unsigned char *sigret, unsigned int *siglen, RSA *rsa);
180int RSA_verify(int type, unsigned char *m, unsigned int m_len,
181 unsigned char *sigbuf, unsigned int siglen, RSA *rsa);
182
183/* The following 2 function sign and verify a ASN1_OCTET_STRING
184 * object inside PKCS#1 padded RSA encryption */
185int RSA_sign_ASN1_OCTET_STRING(int type, unsigned char *m, unsigned int m_len,
186 unsigned char *sigret, unsigned int *siglen, RSA *rsa);
187int RSA_verify_ASN1_OCTET_STRING(int type, unsigned char *m, unsigned int m_len,
188 unsigned char *sigbuf, unsigned int siglen, RSA *rsa);
189
190int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
191void RSA_blinding_off(RSA *rsa);
192
193int RSA_padding_add_PKCS1_type_1(unsigned char *to,int tlen,
194 unsigned char *f,int fl);
195int RSA_padding_check_PKCS1_type_1(unsigned char *to,int tlen,
196 unsigned char *f,int fl);
197int RSA_padding_add_PKCS1_type_2(unsigned char *to,int tlen,
198 unsigned char *f,int fl);
199int RSA_padding_check_PKCS1_type_2(unsigned char *to,int tlen,
200 unsigned char *f,int fl);
201int RSA_padding_add_SSLv23(unsigned char *to,int tlen,
202 unsigned char *f,int fl);
203int RSA_padding_check_SSLv23(unsigned char *to,int tlen,
204 unsigned char *f,int fl);
205int RSA_padding_add_none(unsigned char *to,int tlen,
206 unsigned char *f,int fl);
207int RSA_padding_check_none(unsigned char *to,int tlen,
208 unsigned char *f,int fl);
209
210int RSA_get_ex_new_index(long argl, char *argp, int (*new_func)(),
211 int (*dup_func)(), void (*free_func)());
212int RSA_set_ex_data(RSA *r,int idx,char *arg);
213char *RSA_get_ex_data(RSA *r, int idx);
214
215#else
216
217RSA * RSA_new();
218RSA * RSA_new_method();
219int RSA_size();
220RSA * RSA_generate_key();
221int RSA_public_encrypt();
222int RSA_private_encrypt();
223int RSA_public_decrypt();
224int RSA_private_decrypt();
225void RSA_free ();
226
227int RSA_flags();
228
229void RSA_set_default_method();
230
231/* RSA_METHOD *RSA_PKCS1_RSAref(); */
232RSA_METHOD *RSA_PKCS1_SSLeay();
233
234void ERR_load_RSA_strings();
235
236RSA * d2i_RSAPublicKey();
237int i2d_RSAPublicKey();
238RSA * d2i_RSAPrivateKey();
239int i2d_RSAPrivateKey();
240#ifndef NO_FP_API
241int RSA_print_fp();
242#endif
243
244int RSA_print();
245
246int i2d_Netscape_RSA();
247RSA *d2i_Netscape_RSA();
248RSA *d2i_Netscape_RSA_2();
249
250int RSA_sign();
251int RSA_verify();
252
253int RSA_sign_ASN1_OCTET_STRING();
254int RSA_verify_ASN1_OCTET_STRING();
255int RSA_blinding_on();
256void RSA_blinding_off();
257
258int RSA_padding_add_PKCS1_type_1();
259int RSA_padding_check_PKCS1_type_1();
260int RSA_padding_add_PKCS1_type_2();
261int RSA_padding_check_PKCS1_type_2();
262int RSA_padding_add_SSLv23();
263int RSA_padding_check_SSLv23();
264int RSA_padding_add_none();
265int RSA_padding_check_none();
266
267int RSA_get_ex_new_index();
268int RSA_set_ex_data();
269char *RSA_get_ex_data();
270
271#endif
272
273/* BEGIN ERROR CODES */
274/* Error codes for the RSA functions. */
275
276/* Function codes. */
277#define RSA_F_RSA_EAY_PRIVATE_DECRYPT 100
278#define RSA_F_RSA_EAY_PRIVATE_ENCRYPT 101
279#define RSA_F_RSA_EAY_PUBLIC_DECRYPT 102
280#define RSA_F_RSA_EAY_PUBLIC_ENCRYPT 103
281#define RSA_F_RSA_GENERATE_KEY 104
282#define RSA_F_RSA_NEW_METHOD 105
283#define RSA_F_RSA_PADDING_ADD_NONE 106
284#define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_1 107
285#define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_2 108
286#define RSA_F_RSA_PADDING_ADD_SSLV23 109
287#define RSA_F_RSA_PADDING_CHECK_NONE 110
288#define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1 111
289#define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2 112
290#define RSA_F_RSA_PADDING_CHECK_SSLV23 113
291#define RSA_F_RSA_PRINT 114
292#define RSA_F_RSA_PRINT_FP 115
293#define RSA_F_RSA_SIGN 116
294#define RSA_F_RSA_SIGN_ASN1_OCTET_STRING 117
295#define RSA_F_RSA_VERIFY 118
296#define RSA_F_RSA_VERIFY_ASN1_OCTET_STRING 119
297
298/* Reason codes. */
299#define RSA_R_ALGORITHM_MISMATCH 100
300#define RSA_R_BAD_E_VALUE 101
301#define RSA_R_BAD_FIXED_HEADER_DECRYPT 102
302#define RSA_R_BAD_PAD_BYTE_COUNT 103
303#define RSA_R_BAD_SIGNATURE 104
304#define RSA_R_BAD_ZERO_BYTE 105
305#define RSA_R_BLOCK_TYPE_IS_NOT_01 106
306#define RSA_R_BLOCK_TYPE_IS_NOT_02 107
307#define RSA_R_DATA_GREATER_THAN_MOD_LEN 108
308#define RSA_R_DATA_TOO_LARGE 109
309#define RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 110
310#define RSA_R_DATA_TOO_SMALL 111
311#define RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY 112
312#define RSA_R_NULL_BEFORE_BLOCK_MISSING 113
313#define RSA_R_PADDING_CHECK_FAILED 114
314#define RSA_R_SSLV3_ROLLBACK_ATTACK 115
315#define RSA_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD 116
316#define RSA_R_UNKNOWN_ALGORITHM_TYPE 117
317#define RSA_R_UNKNOWN_PADDING_TYPE 118
318#define RSA_R_WRONG_SIGNATURE_LENGTH 119
319
320#ifdef __cplusplus
321}
322#endif
323#endif
324
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