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Current File : /usr/include/openssl/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

# include <openssl/asn1.h>

# ifndef OPENSSL_NO_BIO
#  include <openssl/bio.h>
# endif
# include <openssl/crypto.h>
# include <openssl/ossl_typ.h>
# ifndef OPENSSL_NO_DEPRECATED
#  include <openssl/bn.h>
# endif

# ifdef OPENSSL_NO_RSA
#  error RSA is disabled.
# endif

#ifdef  __cplusplus
extern "C" {
#endif

/* Declared already in ossl_typ.h */
/* typedef struct rsa_st RSA; */
/* typedef struct rsa_meth_st RSA_METHOD; */

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);
    /* Can be null */
    int (*rsa_mod_exp) (BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx);
    /* 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);
    /* called at new */
    int (*init) (RSA *rsa);
    /* called at free */
    int (*finish) (RSA *rsa);
    /* RSA_METHOD_FLAG_* things */
    int flags;
    /* may be needed! */
    char *app_data;
    /*
     * 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, const unsigned char *sigbuf,
                       unsigned int siglen, const RSA *rsa);
    /*
     * If this callback is NULL, the builtin software RSA key-gen will be
     * used. This is for behavioural compatibility whilst the code gets
     * rewired, but one day it would be nice to assume there are no such
     * things as "builtin software" implementations.
     */
    int (*rsa_keygen) (RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
};

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;
    BN_BLINDING *mt_blinding;
};

# ifndef OPENSSL_RSA_MAX_MODULUS_BITS
#  define OPENSSL_RSA_MAX_MODULUS_BITS   16384
# endif

# define OPENSSL_RSA_FIPS_MIN_MODULUS_BITS 1024

# ifndef OPENSSL_RSA_SMALL_MODULUS_BITS
#  define OPENSSL_RSA_SMALL_MODULUS_BITS 3072
# endif
# ifndef OPENSSL_RSA_MAX_PUBEXP_BITS

/* exponent limit enforced for "large" modulus only */
#  define OPENSSL_RSA_MAX_PUBEXP_BITS    64
# endif

# define RSA_3   0x3L
# define RSA_F4  0x10001L

# define RSA_METHOD_FLAG_NO_CHECK        0x0001/* don't check pub/private
                                                * match */

# define RSA_FLAG_CACHE_PUBLIC           0x0002
# define RSA_FLAG_CACHE_PRIVATE          0x0004
# define RSA_FLAG_BLINDING               0x0008
# define RSA_FLAG_THREAD_SAFE            0x0010
/*
 * 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               0x0020

/*
 * This flag in the RSA_METHOD enables the new rsa_sign, rsa_verify
 * functions.
 */
# define RSA_FLAG_SIGN_VER               0x0040

/*
 * 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_FLAG_NO_BLINDING            0x0080
/*
 * new with 0.9.8f; the built-in RSA
 * implementation now uses constant time
 * operations by default in private key operations,
 * e.g., constant time modular exponentiation,
 * modular inverse without leaking branches,
 * division without leaking branches. This
 * flag disables these constant time
 * operations and results in faster RSA
 * private key operations.
 */
# define RSA_FLAG_NO_CONSTTIME           0x0100
# ifdef OPENSSL_USE_DEPRECATED
/* deprecated name for the flag*/
/*
 * new with 0.9.7h; the built-in RSA
 * implementation now uses constant time
 * modular exponentiation for secret exponents
 * by default. This flag causes the
 * faster variable sliding window method to
 * be used for all exponents.
 */
#  define RSA_FLAG_NO_EXP_CONSTTIME RSA_FLAG_NO_CONSTTIME
# endif

# define EVP_PKEY_CTX_set_rsa_padding(ctx, pad) \
        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, -1, EVP_PKEY_CTRL_RSA_PADDING, \
                                pad, NULL)

# define EVP_PKEY_CTX_get_rsa_padding(ctx, ppad) \
        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, -1, \
                                EVP_PKEY_CTRL_GET_RSA_PADDING, 0, ppad)

# define EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, len) \
        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
                                (EVP_PKEY_OP_SIGN|EVP_PKEY_OP_VERIFY), \
                                EVP_PKEY_CTRL_RSA_PSS_SALTLEN, \
                                len, NULL)

# define EVP_PKEY_CTX_get_rsa_pss_saltlen(ctx, plen) \
        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
                                (EVP_PKEY_OP_SIGN|EVP_PKEY_OP_VERIFY), \
                                EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN, \
                                0, plen)

# define EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, bits) \
        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN, \
                                EVP_PKEY_CTRL_RSA_KEYGEN_BITS, bits, NULL)

# define EVP_PKEY_CTX_set_rsa_keygen_pubexp(ctx, pubexp) \
        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN, \
                                EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP, 0, pubexp)

# define  EVP_PKEY_CTX_set_rsa_mgf1_md(ctx, md)  \
                EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
                        EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT, \
                                EVP_PKEY_CTRL_RSA_MGF1_MD, 0, (void *)md)

# define  EVP_PKEY_CTX_set_rsa_oaep_md(ctx, md)  \
                EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,  \
                                EVP_PKEY_CTRL_RSA_OAEP_MD, 0, (void *)md)

# define  EVP_PKEY_CTX_get_rsa_mgf1_md(ctx, pmd) \
                EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
                        EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT, \
                                EVP_PKEY_CTRL_GET_RSA_MGF1_MD, 0, (void *)pmd)

# define  EVP_PKEY_CTX_get_rsa_oaep_md(ctx, pmd) \
                EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,  \
                                EVP_PKEY_CTRL_GET_RSA_OAEP_MD, 0, (void *)pmd)

# define  EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, l, llen) \
                EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,  \
                                EVP_PKEY_CTRL_RSA_OAEP_LABEL, llen, (void *)l)

# define  EVP_PKEY_CTX_get0_rsa_oaep_label(ctx, l)       \
                EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,  \
                                EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL, 0, (void *)l)

# define EVP_PKEY_CTRL_RSA_PADDING       (EVP_PKEY_ALG_CTRL + 1)
# define EVP_PKEY_CTRL_RSA_PSS_SALTLEN   (EVP_PKEY_ALG_CTRL + 2)

# define EVP_PKEY_CTRL_RSA_KEYGEN_BITS   (EVP_PKEY_ALG_CTRL + 3)
# define EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP (EVP_PKEY_ALG_CTRL + 4)
# define EVP_PKEY_CTRL_RSA_MGF1_MD       (EVP_PKEY_ALG_CTRL + 5)

# define EVP_PKEY_CTRL_GET_RSA_PADDING           (EVP_PKEY_ALG_CTRL + 6)
# define EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN       (EVP_PKEY_ALG_CTRL + 7)
# define EVP_PKEY_CTRL_GET_RSA_MGF1_MD           (EVP_PKEY_ALG_CTRL + 8)

# define EVP_PKEY_CTRL_RSA_OAEP_MD       (EVP_PKEY_ALG_CTRL + 9)
# define EVP_PKEY_CTRL_RSA_OAEP_LABEL    (EVP_PKEY_ALG_CTRL + 10)

# define EVP_PKEY_CTRL_GET_RSA_OAEP_MD   (EVP_PKEY_ALG_CTRL + 11)
# define EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL (EVP_PKEY_ALG_CTRL + 12)

# define EVP_PKEY_CTRL_RSA_IMPLICIT_REJECTION (EVP_PKEY_ALG_CTRL + 14)

# define RSA_PKCS1_PADDING       1
# define RSA_SSLV23_PADDING      2
# define RSA_NO_PADDING          3
# define RSA_PKCS1_OAEP_PADDING  4
# define RSA_X931_PADDING        5
/* EVP_PKEY_ only */
# define RSA_PKCS1_PSS_PADDING   6

/* internal RSA_ only */
# define RSA_PKCS1_NO_IMPLICIT_REJECT_PADDING 8

# 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);

/* Deprecated version */
# ifndef OPENSSL_NO_DEPRECATED
RSA *RSA_generate_key(int bits, unsigned long e, void
                       (*callback) (int, int, void *), void *cb_arg);
# endif                         /* !defined(OPENSSL_NO_DEPRECATED) */

/* New version */
int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
int RSA_X931_derive_ex(RSA *rsa, BIGNUM *p1, BIGNUM *p2, BIGNUM *q1,
                       BIGNUM *q2, const BIGNUM *Xp1, const BIGNUM *Xp2,
                       const BIGNUM *Xp, const BIGNUM *Xq1,
                       const BIGNUM *Xq2, const BIGNUM *Xq,
                       const BIGNUM *e, BN_GENCB *cb);
int RSA_X931_generate_key_ex(RSA *rsa, int bits, const BIGNUM *e,
                             BN_GENCB *cb);

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)

typedef struct rsa_pss_params_st {
    X509_ALGOR *hashAlgorithm;
    X509_ALGOR *maskGenAlgorithm;
    ASN1_INTEGER *saltLength;
    ASN1_INTEGER *trailerField;
} RSA_PSS_PARAMS;

DECLARE_ASN1_FUNCTIONS(RSA_PSS_PARAMS)

typedef struct rsa_oaep_params_st {
    X509_ALGOR *hashFunc;
    X509_ALGOR *maskGenFunc;
    X509_ALGOR *pSourceFunc;
} RSA_OAEP_PARAMS;

DECLARE_ASN1_FUNCTIONS(RSA_OAEP_PARAMS)

# ifndef OPENSSL_NO_FP_API
int RSA_print_fp(FILE *fp, const RSA *r, int offset);
# endif

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

# ifndef OPENSSL_NO_RC4
int i2d_RSA_NET(const RSA *a, unsigned char **pp,
                int (*cb) (char *buf, int len, const char *prompt,
                           int verify), int sgckey);
RSA *d2i_RSA_NET(RSA **a, const unsigned char **pp, long length,
                 int (*cb) (char *buf, int len, const char *prompt,
                            int verify), int sgckey);

int i2d_Netscape_RSA(const RSA *a, unsigned char **pp,
                     int (*cb) (char *buf, int len, const char *prompt,
                                int verify));
RSA *d2i_Netscape_RSA(RSA **a, const unsigned char **pp, long length,
                      int (*cb) (char *buf, int len, const char *prompt,
                                 int verify));
# endif

/*
 * 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,
               const 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);
BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *ctx);

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 PKCS1_MGF1(unsigned char *mask, long len, const unsigned char *seed,
               long seedlen, const EVP_MD *dgst);
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_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
                                    const unsigned char *from, int flen,
                                    const unsigned char *param, int plen,
                                    const EVP_MD *md, const EVP_MD *mgf1md);
int RSA_padding_check_PKCS1_OAEP_mgf1(unsigned char *to, int tlen,
                                      const unsigned char *from, int flen,
                                      int num, const unsigned char *param,
                                      int plen, const EVP_MD *md,
                                      const EVP_MD *mgf1md);
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_padding_add_X931(unsigned char *to, int tlen, const unsigned char *f,
                         int fl);
int RSA_padding_check_X931(unsigned char *to, int tlen,
                           const unsigned char *f, int fl, int rsa_len);
int RSA_X931_hash_id(int nid);

int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash,
                         const EVP_MD *Hash, const unsigned char *EM,
                         int sLen);
int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM,
                              const unsigned char *mHash, const EVP_MD *Hash,
                              int sLen);

int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash,
                              const EVP_MD *Hash, const EVP_MD *mgf1Hash,
                              const unsigned char *EM, int sLen);

int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, unsigned char *EM,
                                   const unsigned char *mHash,
                                   const EVP_MD *Hash, const EVP_MD *mgf1Hash,
                                   int sLen);

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);

/*
 * If this flag is set the RSA method is FIPS compliant and can be used in
 * FIPS mode. This is set in the validated module method. If an application
 * sets this flag in its own methods it is its responsibility to ensure the
 * result is compliant.
 */

# define RSA_FLAG_FIPS_METHOD                    0x0400

/*
 * If this flag is set the operations normally disabled in FIPS mode are
 * permitted it is then the applications responsibility to ensure that the
 * usage is compliant.
 */

# define RSA_FLAG_NON_FIPS_ALLOW                 0x0400
/*
 * Application has decided PRNG is good enough to generate a key: don't
 * check.
 */
# define RSA_FLAG_CHECKED                        0x0800

/* 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_CHECK_PADDING_MD                           140
# define RSA_F_DO_RSA_PRINT                               146
# define RSA_F_INT_RSA_VERIFY                             145
# define RSA_F_MEMORY_LOCK                                100
# define RSA_F_OLD_RSA_PRIV_DECODE                        147
# define RSA_F_PKEY_RSA_CTRL                              143
# define RSA_F_PKEY_RSA_CTRL_STR                          144
# define RSA_F_PKEY_RSA_SIGN                              142
# define RSA_F_PKEY_RSA_VERIFY                            154
# define RSA_F_PKEY_RSA_VERIFYRECOVER                     141
# define RSA_F_RSA_ALGOR_TO_MD                            157
# define RSA_F_RSA_BUILTIN_KEYGEN                         129
# define RSA_F_RSA_CHECK_KEY                              123
# define RSA_F_RSA_CMS_DECRYPT                            258
# 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_GENERATE_KEY_EX                        155
# define RSA_F_RSA_ITEM_VERIFY                            156
# define RSA_F_RSA_MEMORY_LOCK                            130
# define RSA_F_RSA_MGF1_TO_MD                             159
# define RSA_F_RSA_NEW_METHOD                             106
# define RSA_F_RSA_NULL                                   124
# define RSA_F_RSA_NULL_MOD_EXP                           131
# define RSA_F_RSA_NULL_PRIVATE_DECRYPT                   132
# define RSA_F_RSA_NULL_PRIVATE_ENCRYPT                   133
# define RSA_F_RSA_NULL_PUBLIC_DECRYPT                    134
# define RSA_F_RSA_NULL_PUBLIC_ENCRYPT                    135
# define RSA_F_RSA_PADDING_ADD_NONE                       107
# define RSA_F_RSA_PADDING_ADD_PKCS1_OAEP                 121
# define RSA_F_RSA_PADDING_ADD_PKCS1_OAEP_MGF1            160
# define RSA_F_RSA_PADDING_ADD_PKCS1_PSS                  125
# define RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1             158
# 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_ADD_X931                       127
# define RSA_F_RSA_PADDING_CHECK_NONE                     111
# define RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP               122
# define RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP_MGF1          161
# 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_PADDING_CHECK_X931                     128
# define RSA_F_RSA_PRINT                                  115
# define RSA_F_RSA_PRINT_FP                               116
# define RSA_F_RSA_PRIVATE_DECRYPT                        157
# define RSA_F_RSA_PRIVATE_ENCRYPT                        148
# define RSA_F_RSA_PRIV_DECODE                            137
# define RSA_F_RSA_PRIV_ENCODE                            138
# define RSA_F_RSA_PSS_TO_CTX                             162
# define RSA_F_RSA_PUBLIC_DECRYPT                         149
# define RSA_F_RSA_PUBLIC_ENCRYPT                         153
# define RSA_F_RSA_PUB_DECODE                             139
# define RSA_F_RSA_SETUP_BLINDING                         136
# define RSA_F_RSA_SET_DEFAULT_METHOD                     150
# define RSA_F_RSA_SET_METHOD                             151
# 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
# define RSA_F_RSA_VERIFY_PKCS1_PSS                       126
# define RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1                  152

/* 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_DOES_NOT_MATCH                      166
# 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_FIRST_OCTET_INVALID                        133
# define RSA_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE        144
# define RSA_R_INVALID_DIGEST                             160
# define RSA_R_INVALID_DIGEST_LENGTH                      143
# define RSA_R_INVALID_HEADER                             137
# define RSA_R_INVALID_KEYBITS                            145
# define RSA_R_INVALID_LABEL                              161
# define RSA_R_INVALID_MESSAGE_LENGTH                     131
# define RSA_R_INVALID_MGF1_MD                            156
# define RSA_R_INVALID_OAEP_PARAMETERS                    162
# define RSA_R_INVALID_PADDING                            138
# define RSA_R_INVALID_PADDING_MODE                       141
# define RSA_R_INVALID_PSS_PARAMETERS                     157
# define RSA_R_INVALID_PSS_SALTLEN                        146
# define RSA_R_INVALID_SALT_LENGTH                        158
# define RSA_R_INVALID_TRAILER                            139
# define RSA_R_INVALID_X931_DIGEST                        142
# define RSA_R_IQMP_NOT_INVERSE_OF_Q                      126
# define RSA_R_KEY_SIZE_TOO_SMALL                         120
# define RSA_R_LAST_OCTET_INVALID                         134
# define RSA_R_MISSING_PRIVATE_KEY                        179
# define RSA_R_MODULUS_TOO_LARGE                          105
# define RSA_R_NON_FIPS_RSA_METHOD                        149
# define RSA_R_NON_FIPS_METHOD                            149
# define RSA_R_NO_PUBLIC_EXPONENT                         140
# 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_OPERATION_NOT_ALLOWED_IN_FIPS_MODE         150
# define RSA_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE   148
# define RSA_R_PADDING_CHECK_FAILED                       114
# define RSA_R_PKCS_DECODING_ERROR                        159
# 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_SLEN_CHECK_FAILED                          136
# define RSA_R_SLEN_RECOVERY_FAILED                       135
# 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_DIGEST                             163
# define RSA_R_UNKNOWN_MASK_DIGEST                        151
# define RSA_R_UNKNOWN_PADDING_TYPE                       118
# define RSA_R_UNKNOWN_PSS_DIGEST                         152
# define RSA_R_UNSUPPORTED_ENCRYPTION_TYPE                164
# define RSA_R_UNSUPPORTED_LABEL_SOURCE                   165
# define RSA_R_UNSUPPORTED_MASK_ALGORITHM                 153
# define RSA_R_UNSUPPORTED_MASK_PARAMETER                 154
# define RSA_R_UNSUPPORTED_SIGNATURE_TYPE                 155
# define RSA_R_VALUE_MISSING                              147
# define RSA_R_WRONG_SIGNATURE_LENGTH                     119

#ifdef  __cplusplus
}
#endif
#endif
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