2ce12789c1
The groups 22, 23, and 24 are not based on a safe prime and generate a prime order subgroup. As such, struct dh_group is also extended to include the order for previously defined groups (q=(p-1)/2 since these were based on a safe prime). Signed-hostap: Jouni Malinen <j@w1.fi>
30 lines
692 B
C
30 lines
692 B
C
/*
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* Diffie-Hellman groups
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* Copyright (c) 2007, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#ifndef DH_GROUPS_H
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#define DH_GROUPS_H
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struct dh_group {
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int id;
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const u8 *generator;
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size_t generator_len;
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const u8 *prime;
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size_t prime_len;
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const u8 *order;
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size_t order_len;
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unsigned int safe_prime:1;
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};
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const struct dh_group * dh_groups_get(int id);
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struct wpabuf * dh_init(const struct dh_group *dh, struct wpabuf **priv);
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struct wpabuf * dh_derive_shared(const struct wpabuf *peer_public,
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const struct wpabuf *own_private,
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const struct dh_group *dh);
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#endif /* DH_GROUPS_H */
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