/* 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#include <openssl/asn1.h>#ifndef OPENSSL_NO_BIO#include <openssl/bio.h>#endif#include <openssl/bn.h>#include <openssl/crypto.h>#include <openssl/ossl_typ.h>#ifdef OPENSSL_NO_RSA#error RSA is disabled.#endif#if defined(OPENSSL_FIPS)#define FIPS_RSA_SIZE_T	int#endif#ifdef  __cplusplusextern "C" {#endiftypedef 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_length,		unsigned char *sigret, unsigned int *siglen, const RSA *rsa);	int (*rsa_verify)(int dtype,		const unsigned char *m, unsigned int m_length,		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;	const RSA_METHOD *meth;	/* functional reference if 'meth' is ENGINE-provided */	ENGINE *engine;	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_FLAG_NO_BLINDING		0x80 /* new with 0.9.6j and 0.9.7b; the built-in                                              * RSA implementation now uses blinding by                                              * default (ignoring RSA_FLAG_BLINDING),                                              * but other engines might not need it                                              */#define RSA_PKCS1_PADDING	1#define RSA_SSLV23_PADDING	2#define RSA_NO_PADDING		3#define RSA_PKCS1_OAEP_PADDING	4#define RSA_PKCS1_PADDING_SIZE	11#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);RSA *	RSA_new_method(ENGINE *engine);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);/* "up" the RSA object's reference count */int	RSA_up_ref(RSA *r);int	RSA_flags(const RSA *r);void RSA_set_default_method(const RSA_METHOD *meth);const RSA_METHOD *RSA_get_default_method(void);const RSA_METHOD *RSA_get_method(const RSA *rsa);int RSA_set_method(RSA *rsa, const RSA_METHOD *meth);/* This function needs the memory locking malloc callbacks to be installed */int RSA_memory_lock(RSA *r);/* these are the actual SSLeay RSA functions */const RSA_METHOD *RSA_PKCS1_SSLeay(void);const RSA_METHOD *RSA_null_method(void);DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA, RSAPublicKey)DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA, RSAPrivateKey)#ifndef OPENSSL_NO_FP_APIint	RSA_print_fp(FILE *fp, const RSA *r,int offset);#endif#ifndef OPENSSL_NO_BIOint	RSA_print(BIO *bp, const RSA *r,int offset);#endifint 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)());/* 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_length,	unsigned char *sigret, unsigned int *siglen, RSA *rsa);int RSA_verify(int type, const unsigned char *m, unsigned int m_length,	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_length,	unsigned char *sigret, unsigned int *siglen, RSA *rsa);int RSA_verify_ASN1_OCTET_STRING(int type,	const unsigned char *m, unsigned int m_length,	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);RSA *RSAPublicKey_dup(RSA *rsa);RSA *RSAPrivateKey_dup(RSA *rsa);/* 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. */void ERR_load_RSA_strings(void);/* 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_LARGE_FOR_MODULUS		 132#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