1 /*
2  * Shared Dragonfly functionality
3  * Copyright (c) 2012-2016, Jouni Malinen <j@w1.fi>
4  * Copyright (c) 2019, The Linux Foundation
5  *
6  * This software may be distributed under the terms of the BSD license.
7  * See README for more details.
8  */
9 
10 #ifndef DRAGONFLY_H
11 #define DRAGONFLY_H
12 
13 #define DRAGONFLY_MAX_ECC_PRIME_LEN 66
14 
15 struct crypto_bignum;
16 struct crypto_ec;
17 
18 int dragonfly_suitable_group(int group, int ecc_only);
19 unsigned int dragonfly_min_pwe_loop_iter(int group);
20 int dragonfly_get_random_qr_qnr(const struct crypto_bignum *prime,
21 				struct crypto_bignum **qr,
22 				struct crypto_bignum **qnr);
23 int dragonfly_is_quadratic_residue_blind(struct crypto_ec *ec,
24 					 const u8 *qr, const u8 *qnr,
25 					 const struct crypto_bignum *val);
26 int dragonfly_generate_scalar(const struct crypto_bignum *order,
27 			      struct crypto_bignum *_rand,
28 			      struct crypto_bignum *_mask,
29 			      struct crypto_bignum *scalar);
30 
31 #endif /* DRAGONFLY_H */
32