text: /* rsa.h
   *
   * Copyright (C) 2006-2019 wolfSSL Inc.
   *
   * This file is part of wolfSSL.
   *
   * wolfSSL is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * wolfSSL is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
   */
  
  /* rsa.h for openSSL */
  
  
  #ifndef WOLFSSL_RSA_H_
  #define WOLFSSL_RSA_H_
  
  #include <wolfssl/openssl/bn.h>
  
  
  #ifdef __cplusplus
      extern "C" {
  #endif
  
  /* Padding types */
  #define RSA_PKCS1_PADDING      0
  #define RSA_PKCS1_OAEP_PADDING 1
  #define RSA_PKCS1_PSS_PADDING  2
  #define RSA_NO_PADDING         3
  
  #ifndef WOLFSSL_RSA_TYPE_DEFINED /* guard on redeclaration */
  typedef struct WOLFSSL_RSA            WOLFSSL_RSA;
  #define WOLFSSL_RSA_TYPE_DEFINED
  #endif
  
  typedef WOLFSSL_RSA                   RSA;
  
  struct WOLFSSL_RSA {
  #ifdef WC_RSA_BLINDING
      WC_RNG* rng;              /* for PrivateDecrypt blinding */
  #endif
  	WOLFSSL_BIGNUM* n;
  	WOLFSSL_BIGNUM* e;
  	WOLFSSL_BIGNUM* d;
  	WOLFSSL_BIGNUM* p;
  	WOLFSSL_BIGNUM* q;
  	WOLFSSL_BIGNUM* dmp1;      /* dP */
  	WOLFSSL_BIGNUM* dmq1;      /* dQ */
  	WOLFSSL_BIGNUM* iqmp;      /* u */
      void*          heap;
      void*          internal;  /* our RSA */
      char           inSet;     /* internal set from external ? */
      char           exSet;     /* external set from internal ? */
      char           ownRng;    /* flag for if the rng should be free'd */
  };
  
  
  WOLFSSL_API WOLFSSL_RSA* wolfSSL_RSA_new(void);
  WOLFSSL_API void        wolfSSL_RSA_free(WOLFSSL_RSA*);
  
  WOLFSSL_API int wolfSSL_RSA_generate_key_ex(WOLFSSL_RSA*, int bits, WOLFSSL_BIGNUM*,
                                            void* cb);
  
  WOLFSSL_API int wolfSSL_RSA_blinding_on(WOLFSSL_RSA*, WOLFSSL_BN_CTX*);
  WOLFSSL_API int wolfSSL_RSA_public_encrypt(int len, const unsigned char* fr,
  	                               unsigned char* to, WOLFSSL_RSA*, int padding);
  WOLFSSL_API int wolfSSL_RSA_private_decrypt(int len, const unsigned char* fr,
  	                               unsigned char* to, WOLFSSL_RSA*, int padding);
  WOLFSSL_API int wolfSSL_RSA_private_encrypt(int len, unsigned char* in,
                              unsigned char* out, WOLFSSL_RSA* rsa, int padding);
  
  WOLFSSL_API int wolfSSL_RSA_size(const WOLFSSL_RSA*);
  WOLFSSL_API int wolfSSL_RSA_sign(int type, const unsigned char* m,
                                 unsigned int mLen, unsigned char* sigRet,
                                 unsigned int* sigLen, WOLFSSL_RSA*);
  WOLFSSL_API int wolfSSL_RSA_sign_ex(int type, const unsigned char* m,
                                 unsigned int mLen, unsigned char* sigRet,
                                 unsigned int* sigLen, WOLFSSL_RSA*, int);
  WOLFSSL_API int wolfSSL_RSA_verify(int type, const unsigned char* m,
                                 unsigned int mLen, const unsigned char* sig,
                                 unsigned int sigLen, WOLFSSL_RSA*);
  WOLFSSL_API int wolfSSL_RSA_public_decrypt(int flen, const unsigned char* from,
                                    unsigned char* to, WOLFSSL_RSA*, int padding);
  WOLFSSL_API int wolfSSL_RSA_GenAdd(WOLFSSL_RSA*);
  WOLFSSL_API int wolfSSL_RSA_LoadDer(WOLFSSL_RSA*, const unsigned char*, int sz);
  WOLFSSL_API int wolfSSL_RSA_LoadDer_ex(WOLFSSL_RSA*, const unsigned char*, int sz, int opt);
  
  WOLFSSL_API void wolfSSL_RSA_get0_key(const WOLFSSL_RSA *r,
                    const WOLFSSL_BIGNUM **n, const WOLFSSL_BIGNUM **e, const WOLFSSL_BIGNUM **d);
  
  #define WOLFSSL_RSA_LOAD_PRIVATE 1
  #define WOLFSSL_RSA_LOAD_PUBLIC  2
  #define WOLFSSL_RSA_F4           0x10001L
  
  #define RSA_new  wolfSSL_RSA_new
  #define RSA_free wolfSSL_RSA_free
  
  #define RSA_generate_key_ex wolfSSL_RSA_generate_key_ex
  
  #define RSA_blinding_on     wolfSSL_RSA_blinding_on
  #define RSA_public_encrypt  wolfSSL_RSA_public_encrypt
  #define RSA_private_decrypt wolfSSL_RSA_private_decrypt
  #define RSA_private_encrypt wolfSSL_RSA_private_encrypt
  
  #define RSA_size           wolfSSL_RSA_size
  #define RSA_sign           wolfSSL_RSA_sign
  #define RSA_verify         wolfSSL_RSA_verify
  #define RSA_public_decrypt wolfSSL_RSA_public_decrypt
  
  #define RSA_get0_key       wolfSSL_RSA_get0_key
  
  #define RSA_F4             WOLFSSL_RSA_F4
  
  #ifdef __cplusplus
      }  /* extern "C" */
  #endif
  
  #endif /* header */
  