text: /**
   * \file pk_internal.h
   *
   * \brief Public Key abstraction layer: wrapper functions
   */
  /*
   *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
   *  SPDX-License-Identifier: GPL-2.0
   *
   *  This program 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.
   *
   *  This program 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 02110-1301 USA.
   *
   *  This file is part of mbed TLS (https://tls.mbed.org)
   */
  
  #ifndef MBEDTLS_PK_WRAP_H
  #define MBEDTLS_PK_WRAP_H
  
  #if !defined(MBEDTLS_CONFIG_FILE)
  #include "config.h"
  #else
  #include MBEDTLS_CONFIG_FILE
  #endif
  
  #include "pk.h"
  
  struct mbedtls_pk_info_t
  {
      /** Public key type */
      mbedtls_pk_type_t type;
  
      /** Type name */
      const char *name;
  
      /** Get key size in bits */
      size_t (*get_bitlen)( const void * );
  
      /** Tell if the context implements this type (e.g. ECKEY can do ECDSA) */
      int (*can_do)( mbedtls_pk_type_t type );
  
      /** Verify signature */
      int (*verify_func)( void *ctx, mbedtls_md_type_t md_alg,
                          const unsigned char *hash, size_t hash_len,
                          const unsigned char *sig, size_t sig_len );
  
      /** Make signature */
      int (*sign_func)( void *ctx, mbedtls_md_type_t md_alg,
                        const unsigned char *hash, size_t hash_len,
                        unsigned char *sig, size_t *sig_len,
                        int (*f_rng)(void *, unsigned char *, size_t),
                        void *p_rng );
  
  #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
      /** Verify signature (restartable) */
      int (*verify_rs_func)( void *ctx, mbedtls_md_type_t md_alg,
                             const unsigned char *hash, size_t hash_len,
                             const unsigned char *sig, size_t sig_len,
                             void *rs_ctx );
  
      /** Make signature (restartable) */
      int (*sign_rs_func)( void *ctx, mbedtls_md_type_t md_alg,
                           const unsigned char *hash, size_t hash_len,
                           unsigned char *sig, size_t *sig_len,
                           int (*f_rng)(void *, unsigned char *, size_t),
                           void *p_rng, void *rs_ctx );
  #endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
  
      /** Decrypt message */
      int (*decrypt_func)( void *ctx, const unsigned char *input, size_t ilen,
                           unsigned char *output, size_t *olen, size_t osize,
                           int (*f_rng)(void *, unsigned char *, size_t),
                           void *p_rng );
  
      /** Encrypt message */
      int (*encrypt_func)( void *ctx, const unsigned char *input, size_t ilen,
                           unsigned char *output, size_t *olen, size_t osize,
                           int (*f_rng)(void *, unsigned char *, size_t),
                           void *p_rng );
  
      /** Check public-private key pair */
      int (*check_pair_func)( const void *pub, const void *prv );
  
      /** Allocate a new context */
      void * (*ctx_alloc_func)( void );
  
      /** Free the given context */
      void (*ctx_free_func)( void *ctx );
  
  #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
      /** Allocate the restart context */
      void * (*rs_alloc_func)( void );
  
      /** Free the restart context */
      void (*rs_free_func)( void *rs_ctx );
  #endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
  
      /** Interface with the debug module */
      void (*debug_func)( const void *ctx, mbedtls_pk_debug_item *items );
  
  };
  #if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
  /* Container for RSA-alt */
  typedef struct
  {
      void *key;
      mbedtls_pk_rsa_alt_decrypt_func decrypt_func;
      mbedtls_pk_rsa_alt_sign_func sign_func;
      mbedtls_pk_rsa_alt_key_len_func key_len_func;
  } mbedtls_rsa_alt_context;
  #endif
  
  #if defined(MBEDTLS_RSA_C)
  extern const mbedtls_pk_info_t mbedtls_rsa_info;
  #endif
  
  #if defined(MBEDTLS_ECP_C)
  extern const mbedtls_pk_info_t mbedtls_eckey_info;
  extern const mbedtls_pk_info_t mbedtls_eckeydh_info;
  #endif
  
  #if defined(MBEDTLS_ECDSA_C)
  extern const mbedtls_pk_info_t mbedtls_ecdsa_info;
  #endif
  
  #if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
  extern const mbedtls_pk_info_t mbedtls_rsa_alt_info;
  #endif
  
  #endif /* MBEDTLS_PK_WRAP_H */
  