[thirdparty/openssl.git] / crypto / rsa / rsa.h

/* crypto/rsa/rsa.h */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#ifndef HEADER_RSA_H
#define HEADER_RSA_H

#ifndef NO_BIO
#include <openssl/bio.h>
#endif
#include <openssl/bn.h>
#include <openssl/crypto.h>

#ifdef NO_RSA
#error RSA is disabled.
#endif

#ifdef  __cplusplus
extern "C" {
#endif

typedef struct rsa_st RSA;

typedef struct rsa_meth_st
	{
	const char *name;
	int (*rsa_pub_enc)(int flen,const unsigned char *from,
			   unsigned char *to,
			   RSA *rsa,int padding);
	int (*rsa_pub_dec)(int flen,const unsigned char *from,
			   unsigned char *to,
			   RSA *rsa,int padding);
	int (*rsa_priv_enc)(int flen,const unsigned char *from,
			    unsigned char *to,
			    RSA *rsa,int padding);
	int (*rsa_priv_dec)(int flen,const unsigned char *from,
			    unsigned char *to,
			    RSA *rsa,int padding);
	int (*rsa_mod_exp)(BIGNUM *r0,const BIGNUM *I,RSA *rsa); /* Can be null */
	int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
			  const BIGNUM *m, BN_CTX *ctx,
			  BN_MONT_CTX *m_ctx); /* Can be null */
	int (*init)(RSA *rsa);		/* called at new */
	int (*finish)(RSA *rsa);	/* called at free */
	int flags;			/* RSA_METHOD_FLAG_* things */
	char *app_data;			/* may be needed! */
/* New sign and verify functions: some libraries don't allow arbitrary data
 * to be signed/verified: this allows them to be used. Note: for this to work
 * the RSA_public_decrypt() and RSA_private_encrypt() should *NOT* be used
 * RSA_sign(), RSA_verify() should be used instead. Note: for backwards
 * compatibility this functionality is only enabled if the RSA_FLAG_SIGN_VER
 * option is set in 'flags'.
 */
	int (*rsa_sign)(int type,
		const unsigned char *m, unsigned int m_len,
		unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
	int (*rsa_verify)(int dtype,
		const unsigned char *m, unsigned int m_len,
		unsigned char *sigbuf, unsigned int siglen, const RSA *rsa);

	} RSA_METHOD;

struct rsa_st
	{
	/* The first parameter is used to pickup errors where
	 * this is passed instead of aEVP_PKEY, it is set to 0 */
	int pad;
	long version;
#if 0
	RSA_METHOD *meth;
#else
	struct engine_st *engine;
#endif
	BIGNUM *n;
	BIGNUM *e;
	BIGNUM *d;
	BIGNUM *p;
	BIGNUM *q;
	BIGNUM *dmp1;
	BIGNUM *dmq1;
	BIGNUM *iqmp;
	/* be careful using this if the RSA structure is shared */
	CRYPTO_EX_DATA ex_data;
	int references;
	int flags;

	/* Used to cache montgomery values */
	BN_MONT_CTX *_method_mod_n;
	BN_MONT_CTX *_method_mod_p;
	BN_MONT_CTX *_method_mod_q;

	/* all BIGNUM values are actually in the following data, if it is not
	 * NULL */
	char *bignum_data;
	BN_BLINDING *blinding;
	};

#define RSA_3	0x3L
#define RSA_F4	0x10001L

#define RSA_METHOD_FLAG_NO_CHECK	0x01 /* don't check pub/private match */

#define RSA_FLAG_CACHE_PUBLIC		0x02
#define RSA_FLAG_CACHE_PRIVATE		0x04
#define RSA_FLAG_BLINDING		0x08
#define RSA_FLAG_THREAD_SAFE		0x10
/* This flag means the private key operations will be handled by rsa_mod_exp
 * and that they do not depend on the private key components being present:
 * for example a key stored in external hardware. Without this flag bn_mod_exp
 * gets called when private key components are absent.
 */
#define RSA_FLAG_EXT_PKEY		0x20

/* This flag in the RSA_METHOD enables the new rsa_sign, rsa_verify functions.
 */
#define RSA_FLAG_SIGN_VER		0x40

#define RSA_PKCS1_PADDING	1
#define RSA_SSLV23_PADDING	2
#define RSA_NO_PADDING		3
#define RSA_PKCS1_OAEP_PADDING	4

#define RSA_set_app_data(s,arg)         RSA_set_ex_data(s,0,arg)
#define RSA_get_app_data(s)             RSA_get_ex_data(s,0)

RSA *	RSA_new(void);
#if 0
RSA *	RSA_new_method(RSA_METHOD *method);
#else
RSA *	RSA_new_method(struct engine_st *engine);
#endif
int	RSA_size(const RSA *);
RSA *	RSA_generate_key(int bits, unsigned long e,void
		(*callback)(int,int,void *),void *cb_arg);
int	RSA_check_key(const RSA *);
	/* next 4 return -1 on error */
int	RSA_public_encrypt(int flen, const unsigned char *from,
		unsigned char *to, RSA *rsa,int padding);
int	RSA_private_encrypt(int flen, const unsigned char *from,
		unsigned char *to, RSA *rsa,int padding);
int	RSA_public_decrypt(int flen, const unsigned char *from, 
		unsigned char *to, RSA *rsa,int padding);
int	RSA_private_decrypt(int flen, const unsigned char *from, 
		unsigned char *to, RSA *rsa,int padding);
void	RSA_free (RSA *r);

int	RSA_flags(const RSA *r);

void RSA_set_default_openssl_method(const RSA_METHOD *meth);
const RSA_METHOD *RSA_get_default_openssl_method(void);
const RSA_METHOD *RSA_get_method(const RSA *rsa);
#if 0
RSA_METHOD *RSA_set_method(RSA *rsa, RSA_METHOD *meth);
#else
int RSA_set_method(RSA *rsa, struct engine_st *engine);
#endif

/* This function needs the memory locking malloc callbacks to be installed */
int RSA_memory_lock(RSA *r);

/* If you have RSAref compiled in. */
const RSA_METHOD *RSA_PKCS1_RSAref(void);

/* these are the actual SSLeay RSA functions */
const RSA_METHOD *RSA_PKCS1_SSLeay(void);

const RSA_METHOD *RSA_null_method(void);

void	ERR_load_RSA_strings(void );

RSA *	d2i_RSAPublicKey(RSA **a, const unsigned char **pp, long length);
int	i2d_RSAPublicKey(const RSA *a, unsigned char **pp);
RSA *	d2i_RSAPrivateKey(RSA **a, const unsigned char **pp, long length);
int 	i2d_RSAPrivateKey(const RSA *a, unsigned char **pp);
#ifndef NO_FP_API
int	RSA_print_fp(FILE *fp, const RSA *r,int offset);
#endif

#ifndef NO_BIO
int	RSA_print(BIO *bp, const RSA *r,int offset);
#endif

int i2d_RSA_NET(const RSA *a, unsigned char **pp, int (*cb)(), int sgckey);
RSA *d2i_RSA_NET(RSA **a, const unsigned char **pp, long length, int (*cb)(), int sgckey);

int i2d_Netscape_RSA(const RSA *a, unsigned char **pp, int (*cb)());
RSA *d2i_Netscape_RSA(RSA **a, const unsigned char **pp, long length, int (*cb)());
/* Naughty internal function required elsewhere, to handle a MS structure
 * that is the same as the netscape one :-) */
RSA *d2i_Netscape_RSA_2(RSA **a, const unsigned char **pp, long length, int (*cb)());

/* The following 2 functions sign and verify a X509_SIG ASN1 object
 * inside PKCS#1 padded RSA encryption */
int RSA_sign(int type, const unsigned char *m, unsigned int m_len,
	unsigned char *sigret, unsigned int *siglen, RSA *rsa);
int RSA_verify(int type, const unsigned char *m, unsigned int m_len,
	unsigned char *sigbuf, unsigned int siglen, RSA *rsa);

/* The following 2 function sign and verify a ASN1_OCTET_STRING
 * object inside PKCS#1 padded RSA encryption */
int RSA_sign_ASN1_OCTET_STRING(int type,
	const unsigned char *m, unsigned int m_len,
	unsigned char *sigret, unsigned int *siglen, RSA *rsa);
int RSA_verify_ASN1_OCTET_STRING(int type,
	const unsigned char *m, unsigned int m_len,
	unsigned char *sigbuf, unsigned int siglen, RSA *rsa);

int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
void RSA_blinding_off(RSA *rsa);

int RSA_padding_add_PKCS1_type_1(unsigned char *to,int tlen,
	const unsigned char *f,int fl);
int RSA_padding_check_PKCS1_type_1(unsigned char *to,int tlen,
	const unsigned char *f,int fl,int rsa_len);
int RSA_padding_add_PKCS1_type_2(unsigned char *to,int tlen,
	const unsigned char *f,int fl);
int RSA_padding_check_PKCS1_type_2(unsigned char *to,int tlen,
	const unsigned char *f,int fl,int rsa_len);
int RSA_padding_add_PKCS1_OAEP(unsigned char *to,int tlen,
	const unsigned char *f,int fl,
	const unsigned char *p,int pl);
int RSA_padding_check_PKCS1_OAEP(unsigned char *to,int tlen,
	const unsigned char *f,int fl,int rsa_len,
	const unsigned char *p,int pl);
int RSA_padding_add_SSLv23(unsigned char *to,int tlen,
	const unsigned char *f,int fl);
int RSA_padding_check_SSLv23(unsigned char *to,int tlen,
	const unsigned char *f,int fl,int rsa_len);
int RSA_padding_add_none(unsigned char *to,int tlen,
	const unsigned char *f,int fl);
int RSA_padding_check_none(unsigned char *to,int tlen,
	const unsigned char *f,int fl,int rsa_len);

int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
	CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
int RSA_set_ex_data(RSA *r,int idx,void *arg);
void *RSA_get_ex_data(const RSA *r, int idx);

/* BEGIN ERROR CODES */
/* The following lines are auto generated by the script mkerr.pl. Any changes
 * made after this point may be overwritten when the script is next run.
 */

/* Error codes for the RSA functions. */

/* Function codes. */
#define RSA_F_MEMORY_LOCK				 100
#define RSA_F_RSA_CHECK_KEY				 123
#define RSA_F_RSA_EAY_PRIVATE_DECRYPT			 101
#define RSA_F_RSA_EAY_PRIVATE_ENCRYPT			 102
#define RSA_F_RSA_EAY_PUBLIC_DECRYPT			 103
#define RSA_F_RSA_EAY_PUBLIC_ENCRYPT			 104
#define RSA_F_RSA_GENERATE_KEY				 105
#define RSA_F_RSA_NEW_METHOD				 106
#define RSA_F_RSA_NULL					 124
#define RSA_F_RSA_PADDING_ADD_NONE			 107
#define RSA_F_RSA_PADDING_ADD_PKCS1_OAEP		 121
#define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_1		 108
#define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_2		 109
#define RSA_F_RSA_PADDING_ADD_SSLV23			 110
#define RSA_F_RSA_PADDING_CHECK_NONE			 111
#define RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP		 122
#define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1		 112
#define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2		 113
#define RSA_F_RSA_PADDING_CHECK_SSLV23			 114
#define RSA_F_RSA_PRINT					 115
#define RSA_F_RSA_PRINT_FP				 116
#define RSA_F_RSA_SIGN					 117
#define RSA_F_RSA_SIGN_ASN1_OCTET_STRING		 118
#define RSA_F_RSA_VERIFY				 119
#define RSA_F_RSA_VERIFY_ASN1_OCTET_STRING		 120

/* Reason codes. */
#define RSA_R_ALGORITHM_MISMATCH			 100
#define RSA_R_BAD_E_VALUE				 101
#define RSA_R_BAD_FIXED_HEADER_DECRYPT			 102
#define RSA_R_BAD_PAD_BYTE_COUNT			 103
#define RSA_R_BAD_SIGNATURE				 104
#define RSA_R_BLOCK_TYPE_IS_NOT_01			 106
#define RSA_R_BLOCK_TYPE_IS_NOT_02			 107
#define RSA_R_DATA_GREATER_THAN_MOD_LEN			 108
#define RSA_R_DATA_TOO_LARGE				 109
#define RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE		 110
#define RSA_R_DATA_TOO_SMALL				 111
#define RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE		 122
#define RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY		 112
#define RSA_R_DMP1_NOT_CONGRUENT_TO_D			 124
#define RSA_R_DMQ1_NOT_CONGRUENT_TO_D			 125
#define RSA_R_D_E_NOT_CONGRUENT_TO_1			 123
#define RSA_R_INVALID_MESSAGE_LENGTH			 131
#define RSA_R_IQMP_NOT_INVERSE_OF_Q			 126
#define RSA_R_KEY_SIZE_TOO_SMALL			 120
#define RSA_R_NULL_BEFORE_BLOCK_MISSING			 113
#define RSA_R_N_DOES_NOT_EQUAL_P_Q			 127
#define RSA_R_OAEP_DECODING_ERROR			 121
#define RSA_R_PADDING_CHECK_FAILED			 114
#define RSA_R_P_NOT_PRIME				 128
#define RSA_R_Q_NOT_PRIME				 129
#define RSA_R_RSA_OPERATIONS_NOT_SUPPORTED		 130
#define RSA_R_SSLV3_ROLLBACK_ATTACK			 115
#define RSA_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD 116
#define RSA_R_UNKNOWN_ALGORITHM_TYPE			 117
#define RSA_R_UNKNOWN_PADDING_TYPE			 118
#define RSA_R_WRONG_SIGNATURE_LENGTH			 119

#ifdef  __cplusplus
}
#endif
#endif
Commit	Line	Data
d02b48c6	1	/* crypto/rsa/rsa.h */
58964a49	2	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6 RE	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
ef33b970 RL	62	#ifndef NO_BIO
	63	#include <openssl/bio.h>
	64	#endif
ec577822 BM	65	#include <openssl/bn.h>
ec577822 BM	66	#include <openssl/crypto.h>
d02b48c6	67
f5d7a031 UM	68	#ifdef NO_RSA
	69	#error RSA is disabled.
	70	#endif
	71
82271cee RL	72	#ifdef __cplusplus
	73	extern "C" {
	74	#endif
	75
03f8b042 BL	76	typedef struct rsa_st RSA;
03f8b042 BL	77
d02b48c6 RE	78	typedef struct rsa_meth_st
d02b48c6 RE	79	{
e778802f	80	const char *name;
29c1f061 RL	81	int (rsa_pub_enc)(int flen,const unsigned char from,
29c1f061 RL	82	unsigned char *to,
03f8b042	83	RSA *rsa,int padding);
29c1f061 RL	84	int (rsa_pub_dec)(int flen,const unsigned char from,
29c1f061 RL	85	unsigned char *to,
03f8b042	86	RSA *rsa,int padding);
29c1f061 RL	87	int (rsa_priv_enc)(int flen,const unsigned char from,
29c1f061 RL	88	unsigned char *to,
03f8b042	89	RSA *rsa,int padding);
29c1f061 RL	90	int (rsa_priv_dec)(int flen,const unsigned char from,
29c1f061 RL	91	unsigned char *to,
03f8b042	92	RSA *rsa,int padding);
29c1f061 RL	93	int (rsa_mod_exp)(BIGNUM r0,const BIGNUM I,RSA rsa); /* Can be null */
29c1f061 RL	94	int (bn_mod_exp)(BIGNUM r, const BIGNUM a, const BIGNUM p,
84c15db5 BL	95	const BIGNUM m, BN_CTX ctx,
84c15db5 BL	96	BN_MONT_CTX m_ctx); / Can be null */
03f8b042 BL	97	int (init)(RSA rsa); /* called at new */
03f8b042 BL	98	int (finish)(RSA rsa); /* called at free */
58964a49 RE	99	int flags; /* RSA_METHOD_FLAG_* things */
58964a49 RE	100	char app_data; / may be needed! */
1c80019a DSH	101	/* New sign and verify functions: some libraries don't allow arbitrary data
	102	* to be signed/verified: this allows them to be used. Note: for this to work
	103	* the RSA_public_decrypt() and RSA_private_encrypt() should NOT be used
	104	* RSA_sign(), RSA_verify() should be used instead. Note: for backwards
657e60fa	105	* compatibility this functionality is only enabled if the RSA_FLAG_SIGN_VER
1c80019a DSH	106	* option is set in 'flags'.
1c80019a DSH	107	*/
29c1f061 RL	108	int (*rsa_sign)(int type,
	109	const unsigned char *m, unsigned int m_len,
	110	unsigned char sigret, unsigned int siglen, const RSA *rsa);
	111	int (*rsa_verify)(int dtype,
	112	const unsigned char *m, unsigned int m_len,
	113	unsigned char sigbuf, unsigned int siglen, const RSA rsa);
1c80019a	114
d02b48c6 RE	115	} RSA_METHOD;
d02b48c6 RE	116
03f8b042	117	struct rsa_st
d02b48c6 RE	118	{
	119	/* The first parameter is used to pickup errors where
	120	* this is passed instead of aEVP_PKEY, it is set to 0 */
	121	int pad;
9d6b1ce6	122	long version;
5270e702	123	#if 0
d02b48c6	124	RSA_METHOD *meth;
5270e702 RL	125	#else
	126	struct engine_st *engine;
	127	#endif
d02b48c6 RE	128	BIGNUM *n;
	129	BIGNUM *e;
	130	BIGNUM *d;
	131	BIGNUM *p;
	132	BIGNUM *q;
	133	BIGNUM *dmp1;
	134	BIGNUM *dmq1;
	135	BIGNUM *iqmp;
770d19b8	136	/* be careful using this if the RSA structure is shared */
58964a49	137	CRYPTO_EX_DATA ex_data;
d02b48c6	138	int references;
58964a49 RE	139	int flags;
58964a49 RE	140
03f8b042 BL	141	/* Used to cache montgomery values */
	142	BN_MONT_CTX *_method_mod_n;
	143	BN_MONT_CTX *_method_mod_p;
	144	BN_MONT_CTX *_method_mod_q;
58964a49	145
dfeab068 RE	146	/* all BIGNUM values are actually in the following data, if it is not
	147	* NULL */
	148	char *bignum_data;
58964a49	149	BN_BLINDING *blinding;
03f8b042	150	};
d02b48c6 RE	151
	152	#define RSA_3 0x3L
	153	#define RSA_F4 0x10001L
	154
58964a49	155	#define RSA_METHOD_FLAG_NO_CHECK 0x01 /* don't check pub/private match */
dfeab068	156
58964a49 RE	157	#define RSA_FLAG_CACHE_PUBLIC 0x02
	158	#define RSA_FLAG_CACHE_PRIVATE 0x04
	159	#define RSA_FLAG_BLINDING 0x08
	160	#define RSA_FLAG_THREAD_SAFE 0x10
770d19b8 DSH	161	/* This flag means the private key operations will be handled by rsa_mod_exp
	162	* and that they do not depend on the private key components being present:
	163	* for example a key stored in external hardware. Without this flag bn_mod_exp
	164	* gets called when private key components are absent.
	165	*/
	166	#define RSA_FLAG_EXT_PKEY 0x20
58964a49	167
1c80019a DSH	168	/* This flag in the RSA_METHOD enables the new rsa_sign, rsa_verify functions.
	169	*/
	170	#define RSA_FLAG_SIGN_VER 0x40
	171
58964a49 RE	172	#define RSA_PKCS1_PADDING 1
	173	#define RSA_SSLV23_PADDING 2
	174	#define RSA_NO_PADDING 3
a4949896	175	#define RSA_PKCS1_OAEP_PADDING 4
58964a49	176
dd9d233e	177	#define RSA_set_app_data(s,arg) RSA_set_ex_data(s,0,arg)
58964a49	178	#define RSA_get_app_data(s) RSA_get_ex_data(s,0)
d02b48c6	179
d02b48c6	180	RSA * RSA_new(void);
5270e702	181	#if 0
d02b48c6	182	RSA * RSA_new_method(RSA_METHOD *method);
5270e702 RL	183	#else
	184	RSA * RSA_new_method(struct engine_st *engine);
	185	#endif
29c1f061	186	int RSA_size(const RSA *);
d02b48c6	187	RSA * RSA_generate_key(int bits, unsigned long e,void
b4f76582	188	(callback)(int,int,void ),void *cb_arg);
29c1f061	189	int RSA_check_key(const RSA *);
d02b48c6	190	/* next 4 return -1 on error */
29c1f061	191	int RSA_public_encrypt(int flen, const unsigned char *from,
d02b48c6	192	unsigned char to, RSA rsa,int padding);
29c1f061	193	int RSA_private_encrypt(int flen, const unsigned char *from,
d02b48c6	194	unsigned char to, RSA rsa,int padding);
29c1f061	195	int RSA_public_decrypt(int flen, const unsigned char *from,
d02b48c6	196	unsigned char to, RSA rsa,int padding);
29c1f061	197	int RSA_private_decrypt(int flen, const unsigned char *from,
d02b48c6 RE	198	unsigned char to, RSA rsa,int padding);
	199	void RSA_free (RSA *r);
	200
29c1f061	201	int RSA_flags(const RSA *r);
58964a49	202
29c1f061 RL	203	void RSA_set_default_openssl_method(const RSA_METHOD *meth);
	204	const RSA_METHOD *RSA_get_default_openssl_method(void);
	205	const RSA_METHOD RSA_get_method(const RSA rsa);
5270e702	206	#if 0
ce8b2574	207	RSA_METHOD RSA_set_method(RSA rsa, RSA_METHOD *meth);
5270e702 RL	208	#else
	209	int RSA_set_method(RSA rsa, struct engine_st engine);
	210	#endif
d02b48c6	211
dfeab068 RE	212	/* This function needs the memory locking malloc callbacks to be installed */
	213	int RSA_memory_lock(RSA *r);
	214
d02b48c6	215	/* If you have RSAref compiled in. */
7be7c2ed	216	const RSA_METHOD *RSA_PKCS1_RSAref(void);
d02b48c6 RE	217
d02b48c6 RE	218	/* these are the actual SSLeay RSA functions */
7be7c2ed	219	const RSA_METHOD *RSA_PKCS1_SSLeay(void);
d02b48c6	220
7be7c2ed	221	const RSA_METHOD *RSA_null_method(void);
c1cd88a0	222
d02b48c6 RE	223	void ERR_load_RSA_strings(void );
d02b48c6 RE	224
29c1f061 RL	225	RSA * d2i_RSAPublicKey(RSA a, const unsigned char pp, long length);
	226	int i2d_RSAPublicKey(const RSA a, unsigned char *pp);
	227	RSA * d2i_RSAPrivateKey(RSA a, const unsigned char pp, long length);
	228	int i2d_RSAPrivateKey(const RSA a, unsigned char *pp);
58964a49	229	#ifndef NO_FP_API
29c1f061	230	int RSA_print_fp(FILE fp, const RSA r,int offset);
d02b48c6 RE	231	#endif
d02b48c6 RE	232
ef33b970	233	#ifndef NO_BIO
29c1f061	234	int RSA_print(BIO bp, const RSA r,int offset);
d02b48c6 RE	235	#endif
d02b48c6 RE	236
29c1f061 RL	237	int i2d_RSA_NET(const RSA a, unsigned char pp, int (cb)(), int sgckey);
29c1f061 RL	238	RSA d2i_RSA_NET(RSA a, const unsigned char pp, long length, int (cb)(), int sgckey);
d3ed8ceb	239
29c1f061 RL	240	int i2d_Netscape_RSA(const RSA a, unsigned char pp, int (cb)());
29c1f061 RL	241	RSA d2i_Netscape_RSA(RSA a, const unsigned char pp, long length, int (cb)());
58964a49 RE	242	/* Naughty internal function required elsewhere, to handle a MS structure
58964a49 RE	243	* that is the same as the netscape one :-) */
29c1f061	244	RSA d2i_Netscape_RSA_2(RSA a, const unsigned char pp, long length, int (cb)());
d02b48c6 RE	245
	246	/* The following 2 functions sign and verify a X509_SIG ASN1 object
	247	* inside PKCS#1 padded RSA encryption */
29c1f061	248	int RSA_sign(int type, const unsigned char *m, unsigned int m_len,
d02b48c6	249	unsigned char sigret, unsigned int siglen, RSA *rsa);
29c1f061	250	int RSA_verify(int type, const unsigned char *m, unsigned int m_len,
d02b48c6 RE	251	unsigned char sigbuf, unsigned int siglen, RSA rsa);
	252
	253	/* The following 2 function sign and verify a ASN1_OCTET_STRING
	254	* object inside PKCS#1 padded RSA encryption */
29c1f061 RL	255	int RSA_sign_ASN1_OCTET_STRING(int type,
29c1f061 RL	256	const unsigned char *m, unsigned int m_len,
d02b48c6	257	unsigned char sigret, unsigned int siglen, RSA *rsa);
29c1f061 RL	258	int RSA_verify_ASN1_OCTET_STRING(int type,
29c1f061 RL	259	const unsigned char *m, unsigned int m_len,
d02b48c6 RE	260	unsigned char sigbuf, unsigned int siglen, RSA rsa);
d02b48c6 RE	261
58964a49 RE	262	int RSA_blinding_on(RSA rsa, BN_CTX ctx);
	263	void RSA_blinding_off(RSA *rsa);
	264
	265	int RSA_padding_add_PKCS1_type_1(unsigned char *to,int tlen,
29c1f061	266	const unsigned char *f,int fl);
58964a49	267	int RSA_padding_check_PKCS1_type_1(unsigned char *to,int tlen,
29c1f061	268	const unsigned char *f,int fl,int rsa_len);
58964a49	269	int RSA_padding_add_PKCS1_type_2(unsigned char *to,int tlen,
29c1f061	270	const unsigned char *f,int fl);
58964a49	271	int RSA_padding_check_PKCS1_type_2(unsigned char *to,int tlen,
29c1f061	272	const unsigned char *f,int fl,int rsa_len);
a4949896	273	int RSA_padding_add_PKCS1_OAEP(unsigned char *to,int tlen,
29c1f061 RL	274	const unsigned char *f,int fl,
29c1f061 RL	275	const unsigned char *p,int pl);
a4949896	276	int RSA_padding_check_PKCS1_OAEP(unsigned char *to,int tlen,
29c1f061 RL	277	const unsigned char *f,int fl,int rsa_len,
29c1f061 RL	278	const unsigned char *p,int pl);
58964a49	279	int RSA_padding_add_SSLv23(unsigned char *to,int tlen,
29c1f061	280	const unsigned char *f,int fl);
58964a49	281	int RSA_padding_check_SSLv23(unsigned char *to,int tlen,
29c1f061	282	const unsigned char *f,int fl,int rsa_len);
58964a49	283	int RSA_padding_add_none(unsigned char *to,int tlen,
29c1f061	284	const unsigned char *f,int fl);
58964a49	285	int RSA_padding_check_none(unsigned char *to,int tlen,
29c1f061	286	const unsigned char *f,int fl,int rsa_len);
58964a49	287
dd9d233e DSH	288	int RSA_get_ex_new_index(long argl, void argp, CRYPTO_EX_new new_func,
	289	CRYPTO_EX_dup dup_func, CRYPTO_EX_free free_func);
	290	int RSA_set_ex_data(RSA r,int idx,void arg);
29c1f061	291	void RSA_get_ex_data(const RSA r, int idx);
58964a49	292
d02b48c6	293	/* BEGIN ERROR CODES */
6d311938 DSH	294	/* The following lines are auto generated by the script mkerr.pl. Any changes
	295	* made after this point may be overwritten when the script is next run.
	296	*/
	297
d02b48c6 RE	298	/* Error codes for the RSA functions. */
	299
	300	/* Function codes. */
dfeab068	301	#define RSA_F_MEMORY_LOCK 100
03cd4944	302	#define RSA_F_RSA_CHECK_KEY 123
dfeab068 RE	303	#define RSA_F_RSA_EAY_PRIVATE_DECRYPT 101
	304	#define RSA_F_RSA_EAY_PRIVATE_ENCRYPT 102
	305	#define RSA_F_RSA_EAY_PUBLIC_DECRYPT 103
	306	#define RSA_F_RSA_EAY_PUBLIC_ENCRYPT 104
	307	#define RSA_F_RSA_GENERATE_KEY 105
	308	#define RSA_F_RSA_NEW_METHOD 106
c1cd88a0	309	#define RSA_F_RSA_NULL 124
dfeab068	310	#define RSA_F_RSA_PADDING_ADD_NONE 107
a4949896	311	#define RSA_F_RSA_PADDING_ADD_PKCS1_OAEP 121
dfeab068 RE	312	#define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_1 108
	313	#define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_2 109
	314	#define RSA_F_RSA_PADDING_ADD_SSLV23 110
	315	#define RSA_F_RSA_PADDING_CHECK_NONE 111
a4949896	316	#define RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP 122
dfeab068 RE	317	#define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1 112
	318	#define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2 113
	319	#define RSA_F_RSA_PADDING_CHECK_SSLV23 114
	320	#define RSA_F_RSA_PRINT 115
	321	#define RSA_F_RSA_PRINT_FP 116
	322	#define RSA_F_RSA_SIGN 117
	323	#define RSA_F_RSA_SIGN_ASN1_OCTET_STRING 118
	324	#define RSA_F_RSA_VERIFY 119
	325	#define RSA_F_RSA_VERIFY_ASN1_OCTET_STRING 120
d02b48c6 RE	326
	327	/* Reason codes. */
	328	#define RSA_R_ALGORITHM_MISMATCH 100
	329	#define RSA_R_BAD_E_VALUE 101
	330	#define RSA_R_BAD_FIXED_HEADER_DECRYPT 102
	331	#define RSA_R_BAD_PAD_BYTE_COUNT 103
	332	#define RSA_R_BAD_SIGNATURE 104
58964a49 RE	333	#define RSA_R_BLOCK_TYPE_IS_NOT_01 106
	334	#define RSA_R_BLOCK_TYPE_IS_NOT_02 107
	335	#define RSA_R_DATA_GREATER_THAN_MOD_LEN 108
	336	#define RSA_R_DATA_TOO_LARGE 109
	337	#define RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 110
	338	#define RSA_R_DATA_TOO_SMALL 111
0c8a1281	339	#define RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE 122
58964a49	340	#define RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY 112
03cd4944 BM	341	#define RSA_R_DMP1_NOT_CONGRUENT_TO_D 124
03cd4944 BM	342	#define RSA_R_DMQ1_NOT_CONGRUENT_TO_D 125
c1cd88a0	343	#define RSA_R_D_E_NOT_CONGRUENT_TO_1 123
1c80019a	344	#define RSA_R_INVALID_MESSAGE_LENGTH 131
03cd4944	345	#define RSA_R_IQMP_NOT_INVERSE_OF_Q 126
a4949896	346	#define RSA_R_KEY_SIZE_TOO_SMALL 120
58964a49	347	#define RSA_R_NULL_BEFORE_BLOCK_MISSING 113
3a55fc1a	348	#define RSA_R_N_DOES_NOT_EQUAL_P_Q 127
a4949896	349	#define RSA_R_OAEP_DECODING_ERROR 121
58964a49	350	#define RSA_R_PADDING_CHECK_FAILED 114
03cd4944 BM	351	#define RSA_R_P_NOT_PRIME 128
03cd4944 BM	352	#define RSA_R_Q_NOT_PRIME 129
c1cd88a0	353	#define RSA_R_RSA_OPERATIONS_NOT_SUPPORTED 130
58964a49 RE	354	#define RSA_R_SSLV3_ROLLBACK_ATTACK 115
	355	#define RSA_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD 116
	356	#define RSA_R_UNKNOWN_ALGORITHM_TYPE 117
	357	#define RSA_R_UNKNOWN_PADDING_TYPE 118
	358	#define RSA_R_WRONG_SIGNATURE_LENGTH 119
6d311938	359
d02b48c6 RE	360	#ifdef __cplusplus
	361	}
	362	#endif
	363	#endif
	364