456 lines
18 KiB
C
456 lines
18 KiB
C
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/* crypto/rsa/rsa.h */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#ifndef HEADER_RSA_H
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#define HEADER_RSA_H
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#include <openssl/asn1.h>
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#ifndef OPENSSL_NO_BIO
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#include <openssl/bio.h>
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#endif
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#include <openssl/crypto.h>
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#include <openssl/ossl_typ.h>
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#ifndef OPENSSL_NO_DEPRECATED
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#include <openssl/bn.h>
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#endif
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#ifdef OPENSSL_NO_RSA
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#error RSA is disabled.
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Declared already in ossl_typ.h */
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/* typedef struct rsa_st RSA; */
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/* typedef struct rsa_meth_st RSA_METHOD; */
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struct rsa_meth_st
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{
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const char *name;
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int (*rsa_pub_enc)(int flen,const unsigned char *from,
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unsigned char *to,
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RSA *rsa,int padding);
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int (*rsa_pub_dec)(int flen,const unsigned char *from,
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unsigned char *to,
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RSA *rsa,int padding);
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int (*rsa_priv_enc)(int flen,const unsigned char *from,
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unsigned char *to,
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RSA *rsa,int padding);
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int (*rsa_priv_dec)(int flen,const unsigned char *from,
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unsigned char *to,
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RSA *rsa,int padding);
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int (*rsa_mod_exp)(BIGNUM *r0,const BIGNUM *I,RSA *rsa,BN_CTX *ctx); /* Can be null */
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int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
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const BIGNUM *m, BN_CTX *ctx,
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BN_MONT_CTX *m_ctx); /* Can be null */
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int (*init)(RSA *rsa); /* called at new */
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int (*finish)(RSA *rsa); /* called at free */
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int flags; /* RSA_METHOD_FLAG_* things */
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char *app_data; /* may be needed! */
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/* New sign and verify functions: some libraries don't allow arbitrary data
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* to be signed/verified: this allows them to be used. Note: for this to work
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* the RSA_public_decrypt() and RSA_private_encrypt() should *NOT* be used
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* RSA_sign(), RSA_verify() should be used instead. Note: for backwards
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* compatibility this functionality is only enabled if the RSA_FLAG_SIGN_VER
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* option is set in 'flags'.
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*/
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int (*rsa_sign)(int type,
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const unsigned char *m, unsigned int m_length,
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unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
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int (*rsa_verify)(int dtype,
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const unsigned char *m, unsigned int m_length,
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unsigned char *sigbuf, unsigned int siglen, const RSA *rsa);
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/* If this callback is NULL, the builtin software RSA key-gen will be used. This
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* is for behavioural compatibility whilst the code gets rewired, but one day
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* it would be nice to assume there are no such things as "builtin software"
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* implementations. */
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int (*rsa_keygen)(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
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};
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struct rsa_st
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{
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/* The first parameter is used to pickup errors where
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* this is passed instead of aEVP_PKEY, it is set to 0 */
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int pad;
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long version;
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const RSA_METHOD *meth;
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/* functional reference if 'meth' is ENGINE-provided */
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ENGINE *engine;
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BIGNUM *n;
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BIGNUM *e;
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BIGNUM *d;
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BIGNUM *p;
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BIGNUM *q;
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BIGNUM *dmp1;
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BIGNUM *dmq1;
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BIGNUM *iqmp;
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/* be careful using this if the RSA structure is shared */
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CRYPTO_EX_DATA ex_data;
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int references;
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int flags;
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/* Used to cache montgomery values */
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BN_MONT_CTX *_method_mod_n;
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BN_MONT_CTX *_method_mod_p;
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BN_MONT_CTX *_method_mod_q;
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/* all BIGNUM values are actually in the following data, if it is not
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* NULL */
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char *bignum_data;
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BN_BLINDING *blinding;
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BN_BLINDING *mt_blinding;
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};
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#ifndef OPENSSL_RSA_MAX_MODULUS_BITS
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# define OPENSSL_RSA_MAX_MODULUS_BITS 16384
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#endif
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#ifndef OPENSSL_RSA_SMALL_MODULUS_BITS
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# define OPENSSL_RSA_SMALL_MODULUS_BITS 3072
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#endif
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#ifndef OPENSSL_RSA_MAX_PUBEXP_BITS
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# define OPENSSL_RSA_MAX_PUBEXP_BITS 64 /* exponent limit enforced for "large" modulus only */
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#endif
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#define RSA_3 0x3L
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#define RSA_F4 0x10001L
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#define RSA_METHOD_FLAG_NO_CHECK 0x0001 /* don't check pub/private match */
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#define RSA_FLAG_CACHE_PUBLIC 0x0002
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#define RSA_FLAG_CACHE_PRIVATE 0x0004
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#define RSA_FLAG_BLINDING 0x0008
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#define RSA_FLAG_THREAD_SAFE 0x0010
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/* This flag means the private key operations will be handled by rsa_mod_exp
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* and that they do not depend on the private key components being present:
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* for example a key stored in external hardware. Without this flag bn_mod_exp
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* gets called when private key components are absent.
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*/
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#define RSA_FLAG_EXT_PKEY 0x0020
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/* This flag in the RSA_METHOD enables the new rsa_sign, rsa_verify functions.
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*/
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#define RSA_FLAG_SIGN_VER 0x0040
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#define RSA_FLAG_NO_BLINDING 0x0080 /* new with 0.9.6j and 0.9.7b; the built-in
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* RSA implementation now uses blinding by
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* default (ignoring RSA_FLAG_BLINDING),
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* but other engines might not need it
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*/
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#define RSA_FLAG_NO_CONSTTIME 0x0100 /* new with 0.9.8f; the built-in RSA
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* implementation now uses constant time
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* operations by default in private key operations,
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* e.g., constant time modular exponentiation,
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* modular inverse without leaking branches,
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* division without leaking branches. This
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* flag disables these constant time
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* operations and results in faster RSA
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* private key operations.
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*/
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#ifndef OPENSSL_NO_DEPRECATED
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#define RSA_FLAG_NO_EXP_CONSTTIME RSA_FLAG_NO_CONSTTIME /* deprecated name for the flag*/
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/* new with 0.9.7h; the built-in RSA
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* implementation now uses constant time
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* modular exponentiation for secret exponents
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* by default. This flag causes the
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* faster variable sliding window method to
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* be used for all exponents.
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*/
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#endif
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#define RSA_PKCS1_PADDING 1
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#define RSA_SSLV23_PADDING 2
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#define RSA_NO_PADDING 3
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#define RSA_PKCS1_OAEP_PADDING 4
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#define RSA_X931_PADDING 5
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#define RSA_PKCS1_PADDING_SIZE 11
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#define RSA_set_app_data(s,arg) RSA_set_ex_data(s,0,arg)
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#define RSA_get_app_data(s) RSA_get_ex_data(s,0)
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RSA * RSA_new(void);
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RSA * RSA_new_method(ENGINE *engine);
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int RSA_size(const RSA *);
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/* Deprecated version */
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#ifndef OPENSSL_NO_DEPRECATED
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RSA * RSA_generate_key(int bits, unsigned long e,void
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(*callback)(int,int,void *),void *cb_arg);
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#endif /* !defined(OPENSSL_NO_DEPRECATED) */
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/* New version */
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int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
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int RSA_check_key(const RSA *);
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/* next 4 return -1 on error */
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int RSA_public_encrypt(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa,int padding);
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int RSA_private_encrypt(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa,int padding);
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int RSA_public_decrypt(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa,int padding);
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int RSA_private_decrypt(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa,int padding);
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void RSA_free (RSA *r);
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/* "up" the RSA object's reference count */
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int RSA_up_ref(RSA *r);
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int RSA_flags(const RSA *r);
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void RSA_set_default_method(const RSA_METHOD *meth);
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const RSA_METHOD *RSA_get_default_method(void);
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const RSA_METHOD *RSA_get_method(const RSA *rsa);
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int RSA_set_method(RSA *rsa, const RSA_METHOD *meth);
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/* This function needs the memory locking malloc callbacks to be installed */
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int RSA_memory_lock(RSA *r);
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/* these are the actual SSLeay RSA functions */
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const RSA_METHOD *RSA_PKCS1_SSLeay(void);
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const RSA_METHOD *RSA_null_method(void);
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DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA, RSAPublicKey)
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DECLARE_ASN1_ENCODE_FUNCTIONS_const(RSA, RSAPrivateKey)
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#ifndef OPENSSL_NO_FP_API
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int RSA_print_fp(FILE *fp, const RSA *r,int offset);
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#endif
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#ifndef OPENSSL_NO_BIO
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int RSA_print(BIO *bp, const RSA *r,int offset);
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#endif
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int i2d_RSA_NET(const RSA *a, unsigned char **pp,
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int (*cb)(char *buf, int len, const char *prompt, int verify),
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int sgckey);
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RSA *d2i_RSA_NET(RSA **a, const unsigned char **pp, long length,
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int (*cb)(char *buf, int len, const char *prompt, int verify),
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int sgckey);
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int i2d_Netscape_RSA(const RSA *a, unsigned char **pp,
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int (*cb)(char *buf, int len, const char *prompt,
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int verify));
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RSA *d2i_Netscape_RSA(RSA **a, const unsigned char **pp, long length,
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int (*cb)(char *buf, int len, const char *prompt,
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int verify));
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/* The following 2 functions sign and verify a X509_SIG ASN1 object
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* inside PKCS#1 padded RSA encryption */
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int RSA_sign(int type, const unsigned char *m, unsigned int m_length,
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unsigned char *sigret, unsigned int *siglen, RSA *rsa);
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int RSA_verify(int type, const unsigned char *m, unsigned int m_length,
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unsigned char *sigbuf, unsigned int siglen, RSA *rsa);
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/* The following 2 function sign and verify a ASN1_OCTET_STRING
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* object inside PKCS#1 padded RSA encryption */
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int RSA_sign_ASN1_OCTET_STRING(int type,
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const unsigned char *m, unsigned int m_length,
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unsigned char *sigret, unsigned int *siglen, RSA *rsa);
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int RSA_verify_ASN1_OCTET_STRING(int type,
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const unsigned char *m, unsigned int m_length,
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unsigned char *sigbuf, unsigned int siglen, RSA *rsa);
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int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
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void RSA_blinding_off(RSA *rsa);
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BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *ctx);
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int RSA_padding_add_PKCS1_type_1(unsigned char *to,int tlen,
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const unsigned char *f,int fl);
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int RSA_padding_check_PKCS1_type_1(unsigned char *to,int tlen,
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const unsigned char *f,int fl,int rsa_len);
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int RSA_padding_add_PKCS1_type_2(unsigned char *to,int tlen,
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const unsigned char *f,int fl);
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int RSA_padding_check_PKCS1_type_2(unsigned char *to,int tlen,
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const unsigned char *f,int fl,int rsa_len);
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int PKCS1_MGF1(unsigned char *mask, long len,
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const unsigned char *seed, long seedlen, const EVP_MD *dgst);
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int RSA_padding_add_PKCS1_OAEP(unsigned char *to,int tlen,
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const unsigned char *f,int fl,
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const unsigned char *p,int pl);
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int RSA_padding_check_PKCS1_OAEP(unsigned char *to,int tlen,
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const unsigned char *f,int fl,int rsa_len,
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const unsigned char *p,int pl);
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int RSA_padding_add_SSLv23(unsigned char *to,int tlen,
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const unsigned char *f,int fl);
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int RSA_padding_check_SSLv23(unsigned char *to,int tlen,
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const unsigned char *f,int fl,int rsa_len);
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int RSA_padding_add_none(unsigned char *to,int tlen,
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const unsigned char *f,int fl);
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int RSA_padding_check_none(unsigned char *to,int tlen,
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const unsigned char *f,int fl,int rsa_len);
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int RSA_padding_add_X931(unsigned char *to,int tlen,
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const unsigned char *f,int fl);
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int RSA_padding_check_X931(unsigned char *to,int tlen,
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const unsigned char *f,int fl,int rsa_len);
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int RSA_X931_hash_id(int nid);
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int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash,
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const EVP_MD *Hash, const unsigned char *EM, int sLen);
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int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM,
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const unsigned char *mHash,
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const EVP_MD *Hash, int sLen);
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int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
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CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
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int RSA_set_ex_data(RSA *r,int idx,void *arg);
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void *RSA_get_ex_data(const RSA *r, int idx);
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RSA *RSAPublicKey_dup(RSA *rsa);
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RSA *RSAPrivateKey_dup(RSA *rsa);
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/* BEGIN ERROR CODES */
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/* The following lines are auto generated by the script mkerr.pl. Any changes
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* made after this point may be overwritten when the script is next run.
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*/
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void ERR_load_RSA_strings(void);
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/* Error codes for the RSA functions. */
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/* Function codes. */
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#define RSA_F_MEMORY_LOCK 100
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#define RSA_F_RSA_BUILTIN_KEYGEN 129
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#define RSA_F_RSA_CHECK_KEY 123
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#define RSA_F_RSA_EAY_PRIVATE_DECRYPT 101
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#define RSA_F_RSA_EAY_PRIVATE_ENCRYPT 102
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#define RSA_F_RSA_EAY_PUBLIC_DECRYPT 103
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#define RSA_F_RSA_EAY_PUBLIC_ENCRYPT 104
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#define RSA_F_RSA_GENERATE_KEY 105
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#define RSA_F_RSA_MEMORY_LOCK 130
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#define RSA_F_RSA_NEW_METHOD 106
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#define RSA_F_RSA_NULL 124
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#define RSA_F_RSA_NULL_MOD_EXP 131
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#define RSA_F_RSA_NULL_PRIVATE_DECRYPT 132
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#define RSA_F_RSA_NULL_PRIVATE_ENCRYPT 133
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#define RSA_F_RSA_NULL_PUBLIC_DECRYPT 134
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#define RSA_F_RSA_NULL_PUBLIC_ENCRYPT 135
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#define RSA_F_RSA_PADDING_ADD_NONE 107
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#define RSA_F_RSA_PADDING_ADD_PKCS1_OAEP 121
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#define RSA_F_RSA_PADDING_ADD_PKCS1_PSS 125
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#define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_1 108
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#define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_2 109
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#define RSA_F_RSA_PADDING_ADD_SSLV23 110
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||
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#define RSA_F_RSA_PADDING_ADD_X931 127
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#define RSA_F_RSA_PADDING_CHECK_NONE 111
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||
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#define RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP 122
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||
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#define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1 112
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||
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#define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2 113
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||
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#define RSA_F_RSA_PADDING_CHECK_SSLV23 114
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||
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|
#define RSA_F_RSA_PADDING_CHECK_X931 128
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||
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|
#define RSA_F_RSA_PRINT 115
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|
#define RSA_F_RSA_PRINT_FP 116
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|
#define RSA_F_RSA_SETUP_BLINDING 136
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#define RSA_F_RSA_SIGN 117
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#define RSA_F_RSA_SIGN_ASN1_OCTET_STRING 118
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||
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#define RSA_F_RSA_VERIFY 119
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||
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#define RSA_F_RSA_VERIFY_ASN1_OCTET_STRING 120
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||
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#define RSA_F_RSA_VERIFY_PKCS1_PSS 126
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||
|
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||
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|
/* Reason codes. */
|
||
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|
#define RSA_R_ALGORITHM_MISMATCH 100
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||
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|
#define RSA_R_BAD_E_VALUE 101
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||
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|
#define RSA_R_BAD_FIXED_HEADER_DECRYPT 102
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||
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|
#define RSA_R_BAD_PAD_BYTE_COUNT 103
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||
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#define RSA_R_BAD_SIGNATURE 104
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||
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|
#define RSA_R_BLOCK_TYPE_IS_NOT_01 106
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||
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#define RSA_R_BLOCK_TYPE_IS_NOT_02 107
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||
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|
#define RSA_R_DATA_GREATER_THAN_MOD_LEN 108
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||
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|
#define RSA_R_DATA_TOO_LARGE 109
|
||
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|
#define RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 110
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||
|
|
#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
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||
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|
#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
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||
|
|
#define RSA_R_INVALID_HEADER 137
|
||
|
|
#define RSA_R_INVALID_MESSAGE_LENGTH 131
|
||
|
|
#define RSA_R_INVALID_PADDING 138
|
||
|
|
#define RSA_R_INVALID_TRAILER 139
|
||
|
|
#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_MODULUS_TOO_LARGE 105
|
||
|
|
#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_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_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_PADDING_TYPE 118
|
||
|
|
#define RSA_R_WRONG_SIGNATURE_LENGTH 119
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#endif
|