annotate ecc.h @ 1888:a7b66ea18632

Don't set pubkey_info directly in checkpubkey_line This makes it safe to use from fuzzer-pubkey without leaking the value since the cleanup isn't called
author Matt Johnston <matt@ucc.asn.au>
date Wed, 16 Mar 2022 18:35:23 +0800
parents d68d61e7056a
children
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deed0571cacc DROPBEAR_ prefix for include guards to avoid collisions
Thorsten Horstmann <thorsten.horstmann@web.de>
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1 #ifndef DROPBEAR_DROPBEAR_ECC_H
deed0571cacc DROPBEAR_ prefix for include guards to avoid collisions
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2 #define DROPBEAR_DROPBEAR_ECC_H
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3
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4 #include "includes.h"
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5
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6 #include "buffer.h"
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7
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8 #if DROPBEAR_ECC
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9
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10 struct dropbear_ecc_curve {
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11 int ltc_size; /* to match the byte sizes in ltc_ecc_sets[] */
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12 const ltc_ecc_set_type *dp; /* curve domain parameters */
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13 const struct ltc_hash_descriptor *hash_desc;
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4f3335bba3d9 Turn dropbear_ecc_curve's name into const char *
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14 const char *name;
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15 };
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16
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17 extern struct dropbear_ecc_curve ecc_curve_nistp256;
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18 extern struct dropbear_ecc_curve ecc_curve_nistp384;
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19 extern struct dropbear_ecc_curve ecc_curve_nistp521;
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20 extern struct dropbear_ecc_curve *dropbear_ecc_curves[];
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21
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22 void dropbear_ecc_fill_dp(void);
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23 struct dropbear_ecc_curve* curve_for_dp(const ltc_ecc_set_type *dp);
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24
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25 /* "pubkey" refers to a point, but LTC uses ecc_key structure for both public
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26 and private keys */
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27 void buf_put_ecc_raw_pubkey_string(buffer *buf, ecc_key *key);
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28 ecc_key * buf_get_ecc_raw_pubkey(buffer *buf, const struct dropbear_ecc_curve *curve);
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29 int buf_get_ecc_privkey_string(buffer *buf, ecc_key *key);
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30
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31 mp_int * dropbear_ecc_shared_secret(ecc_key *pub_key, const ecc_key *priv_key);
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32
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33 #endif
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34
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35 #endif /* DROPBEAR_DROPBEAR_ECC_H */