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   1 /**
   2  * \file pk_internal.h
   3  *
   4  * \brief Public Key abstraction layer: wrapper functions
   5  */
   6 /*
   7  *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
   8  *  SPDX-License-Identifier: GPL-2.0
   9  *
  10  *  This program is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License as published by
  12  *  the Free Software Foundation; either version 2 of the License, or
  13  *  (at your option) any later version.
  14  *
  15  *  This program is distributed in the hope that it will be useful,
  16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *  GNU General Public License for more details.
  19  *
  20  *  You should have received a copy of the GNU General Public License along
  21  *  with this program; if not, write to the Free Software Foundation, Inc.,
  22  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  23  *
  24  *  This file is part of mbed TLS (https://tls.mbed.org)
  25  */
  26
  27 #ifndef MBEDTLS_PK_WRAP_H
  28 #define MBEDTLS_PK_WRAP_H
  29
  30 #if !defined(MBEDTLS_CONFIG_FILE)
  31 #include "config.h"
  32 #else
  33 #include MBEDTLS_CONFIG_FILE
  34 #endif
  35
  36 #include "pk.h"
  37
  38 struct mbedtls_pk_info_t
  39 {
  40     /** Public key type */
  41     mbedtls_pk_type_t type;
  42
  43     /** Type name */
  44     const char *name;
  45
  46     /** Get key size in bits */
  47     size_t (*get_bitlen)( const void * );
  48
  49     /** Tell if the context implements this type (e.g. ECKEY can do ECDSA) */
  50     int (*can_do)( mbedtls_pk_type_t type );
  51
  52     /** Verify signature */
  53     int (*verify_func)( void *ctx, mbedtls_md_type_t md_alg,
  54                         const unsigned char *hash, size_t hash_len,
  55                         const unsigned char *sig, size_t sig_len );
  56
  57     /** Make signature */
  58     int (*sign_func)( void *ctx, mbedtls_md_type_t md_alg,
  59                       const unsigned char *hash, size_t hash_len,
  60                       unsigned char *sig, size_t *sig_len,
  61                       int (*f_rng)(void *, unsigned char *, size_t),
  62                       void *p_rng );
  63
  64     /** Decrypt message */
  65     int (*decrypt_func)( void *ctx, const unsigned char *input, size_t ilen,
  66                          unsigned char *output, size_t *olen, size_t osize,
  67                          int (*f_rng)(void *, unsigned char *, size_t),
  68                          void *p_rng );
  69
  70     /** Encrypt message */
  71     int (*encrypt_func)( void *ctx, const unsigned char *input, size_t ilen,
  72                          unsigned char *output, size_t *olen, size_t osize,
  73                          int (*f_rng)(void *, unsigned char *, size_t),
  74                          void *p_rng );
  75
  76     /** Check public-private key pair */
  77     int (*check_pair_func)( const void *pub, const void *prv );
  78
  79     /** Allocate a new context */
  80     void * (*ctx_alloc_func)( void );
  81
  82     /** Free the given context */
  83     void (*ctx_free_func)( void *ctx );
  84
  85     /** Interface with the debug module */
  86     void (*debug_func)( const void *ctx, mbedtls_pk_debug_item *items );
  87
  88 };
  89 #if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
  90 /* Container for RSA-alt */
  91 typedef struct
  92 {
  93     void *key;
  94     mbedtls_pk_rsa_alt_decrypt_func decrypt_func;
  95     mbedtls_pk_rsa_alt_sign_func sign_func;
  96     mbedtls_pk_rsa_alt_key_len_func key_len_func;
  97 } mbedtls_rsa_alt_context;
  98 #endif
  99
 100 #if defined(MBEDTLS_RSA_C)
 101 extern const mbedtls_pk_info_t mbedtls_rsa_info;
 102 #endif
 103
 104 #if defined(MBEDTLS_ECP_C)
 105 extern const mbedtls_pk_info_t mbedtls_eckey_info;
 106 extern const mbedtls_pk_info_t mbedtls_eckeydh_info;
 107 #endif
 108
 109 #if defined(MBEDTLS_ECDSA_C)
 110 extern const mbedtls_pk_info_t mbedtls_ecdsa_info;
 111 #endif
 112
 113 #if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
 114 extern const mbedtls_pk_info_t mbedtls_rsa_alt_info;
 115 #endif
 116
 117 #endif /* MBEDTLS_PK_WRAP_H */