client/src/emv/crypto.h

   1 /*
   2  * libopenemv - a library to work with EMV family of smart cards
   3  * Copyright (C) 2015 Dmitry Eremin-Solenikov
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  */
  15
  16 #ifndef CRYPTO_H
  17 #define CRYPTO_H
  18
  19 #include "common.h"
  20
  21 enum crypto_algo_hash {
  22     HASH_INVALID,
  23     HASH_SHA_1,
  24 };
  25
  26 struct crypto_hash *crypto_hash_open(enum crypto_algo_hash hash);
  27 void crypto_hash_close(struct crypto_hash *ch);
  28 void crypto_hash_write(struct crypto_hash *ch, const unsigned char *buf, size_t len);
  29 unsigned char *crypto_hash_read(struct crypto_hash *ch);
  30 size_t crypto_hash_get_size(const struct crypto_hash *ch);
  31
  32 enum crypto_algo_pk {
  33     PK_INVALID,
  34     PK_RSA,
  35 };
  36
  37 struct crypto_pk *crypto_pk_open(enum crypto_algo_pk pk, ...);
  38 struct crypto_pk *crypto_pk_open_priv(enum crypto_algo_pk pk, ...);
  39 struct crypto_pk *crypto_pk_genkey(enum crypto_algo_pk pk, ...);
  40 void crypto_pk_close(struct crypto_pk *cp);
  41 unsigned char *crypto_pk_encrypt(const struct crypto_pk *cp, const unsigned char *buf, size_t len, size_t *clen);
  42 unsigned char *crypto_pk_decrypt(const struct crypto_pk *cp, const unsigned char *buf, size_t len, size_t *clen);
  43 enum crypto_algo_pk crypto_pk_get_algo(const struct crypto_pk *cp);
  44 size_t crypto_pk_get_nbits(const struct crypto_pk *cp);
  45 unsigned char *crypto_pk_get_parameter(const struct crypto_pk *cp, unsigned param, size_t *plen);
  46
  47 #endif