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1 | /* -*-c-*- |
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2 | * |
3 | * Key fetching for elliptic curve public and private keys |
4 | * |
5 | * (c) 2004 Straylight/Edgeware |
6 | */ |
7 | |
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8 | /*----- Licensing notice --------------------------------------------------* |
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9 | * |
10 | * This file is part of Catacomb. |
11 | * |
12 | * Catacomb is free software; you can redistribute it and/or modify |
13 | * it under the terms of the GNU Library General Public License as |
14 | * published by the Free Software Foundation; either version 2 of the |
15 | * License, or (at your option) any later version. |
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16 | * |
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17 | * Catacomb is distributed in the hope that it will be useful, |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
20 | * GNU Library General Public License for more details. |
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21 | * |
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22 | * You should have received a copy of the GNU Library General Public |
23 | * License along with Catacomb; if not, write to the Free |
24 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
25 | * MA 02111-1307, USA. |
26 | */ |
27 | |
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28 | /*----- Header files ------------------------------------------------------*/ |
29 | |
30 | #include "ec-keys.h" |
31 | #include "key.h" |
32 | |
33 | /*----- Key fetching ------------------------------------------------------*/ |
34 | |
35 | const key_fetchdef ec_paramfetch[] = { |
36 | { "curve", offsetof(ec_pub, cstr), KENC_STRING, 0 }, |
37 | { 0, 0, 0, 0 } |
38 | }; |
39 | |
40 | const key_fetchdef ec_pubfetch[] = { |
41 | { "curve", offsetof(ec_pub, cstr), KENC_STRING, 0 }, |
42 | { "p", offsetof(ec_pub, p), KENC_EC, 0 }, |
43 | { 0, 0, 0, 0 } |
44 | }; |
45 | |
46 | static const key_fetchdef priv[] = { |
47 | { "x", offsetof(ec_priv, x), KENC_MP, 0 }, |
48 | { 0, 0, 0, 0 } |
49 | }; |
50 | |
51 | const key_fetchdef ec_privfetch[] = { |
52 | { "curve", offsetof(ec_pub, cstr), KENC_STRING, 0 }, |
53 | { "p", offsetof(ec_pub, p), KENC_EC, 0 }, |
54 | { "private", 0, KENC_STRUCT, priv }, |
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55 | { 0, 0, 0, 0 } |
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56 | }; |
57 | |
58 | /* --- @ec_paramfree@, @ec_pubfree@, @ec_privfree@ --- * |
59 | * |
60 | * Arguments: @ec_param *ep@, @ec_pub *ep@, @ec_priv *ep@ = pointer to |
61 | * key block to free |
62 | * |
63 | * Returns: --- |
64 | * |
65 | * Use: Frees an elliptic curve key block |
66 | */ |
67 | |
68 | void ec_paramfree(ec_param *ep) |
69 | { |
70 | if (ep->ei.c) ec_freeinfo(&ep->ei); |
71 | xfree(ep->cstr); |
72 | } |
73 | |
74 | void ec_pubfree(ec_pub *ep) |
75 | { |
76 | if (ep->ei.c) ec_freeinfo(&ep->ei); |
77 | xfree(ep->cstr); |
78 | EC_DESTROY(&ep->p); |
79 | } |
80 | |
81 | void ec_privfree(ec_priv *ep) |
82 | { |
83 | if (ep->ei.c) ec_freeinfo(&ep->ei); |
84 | xfree(ep->cstr); |
85 | EC_DESTROY(&ep->p); |
86 | mp_drop(ep->x); |
87 | } |
88 | |
89 | /*----- That's all, folks -------------------------------------------------*/ |