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annotate ecc.h @ 793:70625eed40c9 ecc

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A bit of work on ecdsa for host/auth keys
author Matt Johnston <matt@ucc.asn.au>
date Sun, 14 Apr 2013 00:50:03 +0800
parents e465ed10c51d
children c19acba28590
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1 #ifndef _DROPBEAR_ECC_H
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2 #define _DROPBEAR_ECC_H
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3
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4 #include "includes.h"
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5 #include "options.h"
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6
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7 #include "buffer.h"
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8
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9 #ifdef DROPBEAR_ECC
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10
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11 struct dropbear_ecc_curve {
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12 int ltc_size; // to match the byte sizes in ltc_ecc_sets[]
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13 const ltc_ecc_set_type *dp; // curve domain parameters
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14 const struct ltc_hash_descriptor *hash_desc;
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15 const unsigned char *name;
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16 };
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17
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18 extern struct dropbear_ecc_curve ecc_curve_nistp256;
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19 extern struct dropbear_ecc_curve ecc_curve_nistp384;
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20 extern struct dropbear_ecc_curve ecc_curve_nistp521;
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21 extern struct dropbear_ecc_curve *dropbear_ecc_curves[];
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22
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23 void dropbear_ecc_fill_dp();
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24 struct dropbear_ecc_curve* curve_for_dp(const ltc_ecc_set_type *dp);
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26 // "pubkey" refers to a point, but LTC uses ecc_key structure for both public
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27 // and private keys
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28 void buf_put_ecc_raw_pubkey_string(buffer *buf, ecc_key *key);
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29 ecc_key * buf_get_ecc_raw_pubkey(buffer *buf, const struct dropbear_ecc_curve *curve);
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30 int buf_get_ecc_privkey_string(buffer *buf, ecc_key *key);
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31
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32 mp_int * dropbear_ecc_shared_secret(ecc_key *pub_key, ecc_key *priv_key);
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33
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34 #endif
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35
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36 #endif // _DROPBEAR_ECC_H