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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 <stdbool.h>
20 #include <stddef.h>
21
22 enum crypto_algo_hash {
23 HASH_INVALID,
24 HASH_SHA_1,
25 };
26
27 struct crypto_hash *crypto_hash_open(enum crypto_algo_hash hash);
28 void crypto_hash_close(struct crypto_hash *ch);
29 void crypto_hash_write(struct crypto_hash *ch, const unsigned char *buf, size_t len);
30 unsigned char *crypto_hash_read(struct crypto_hash *ch);
31 size_t crypto_hash_get_size(const struct crypto_hash *ch);
32
33 enum crypto_algo_pk {
34 PK_INVALID,
35 PK_RSA,
36 };
37
38 struct crypto_pk *crypto_pk_open(enum crypto_algo_pk pk, ...);
39 struct crypto_pk *crypto_pk_open_priv(enum crypto_algo_pk pk, ...);
40 struct crypto_pk *crypto_pk_genkey(enum crypto_algo_pk pk, ...);
41 void crypto_pk_close(struct crypto_pk *cp);
42 unsigned char *crypto_pk_encrypt(const struct crypto_pk *cp, const unsigned char *buf, size_t len, size_t *clen);
43 unsigned char *crypto_pk_decrypt(const struct crypto_pk *cp, const unsigned char *buf, size_t len, size_t *clen);
44 enum crypto_algo_pk crypto_pk_get_algo(const struct crypto_pk *cp);
45 size_t crypto_pk_get_nbits(const struct crypto_pk *cp);
46 unsigned char *crypto_pk_get_parameter(const struct crypto_pk *cp, unsigned param, size_t *plen);
47
48 #endif
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