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b.liue9582032025-04-17 19:18:16 +08001/*
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
15struct crypto_bignum;
16struct crypto_ec;
17
18int dragonfly_suitable_group(int group, int ecc_only);
19unsigned int dragonfly_min_pwe_loop_iter(int group);
20int dragonfly_get_random_qr_qnr(const struct crypto_bignum *prime,
21 struct crypto_bignum **qr,
22 struct crypto_bignum **qnr);
23int dragonfly_is_quadratic_residue_blind(struct crypto_ec *ec,
24 const u8 *qr, const u8 *qnr,
25 const struct crypto_bignum *val);
26int dragonfly_generate_scalar(const struct crypto_bignum *order,
27 struct crypto_bignum *_rand,
28 struct crypto_bignum *_mask,
29 struct crypto_bignum *scalar);
30int dragonfly_sqrt(struct crypto_ec *ec, const struct crypto_bignum *val,
31 struct crypto_bignum *res);
32
33#endif /* DRAGONFLY_H */