1/* LibTomCrypt, modular cryptographic library -- Tom St Denis
2 *
3 * LibTomCrypt is a library that provides various cryptographic
4 * algorithms in a highly modular and flexible manner.
5 *
6 * The library is free for all purposes without any express
7 * guarantee it works.
8 *
9 * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
10 */
11
12/* Implements ECC over Z/pZ for curve y^2 = x^3 - 3x + b
13 *
14 * All curves taken from NIST recommendation paper of July 1999
15 * Available at http://csrc.nist.gov/cryptval/dss.htm
16 */
17#include "tomcrypt.h"
18
19/**
20  @file ecc_get_size.c
21  ECC Crypto, Tom St Denis
22*/
23
24#ifdef MECC
25
26/**
27  Get the size of an ECC key
28  @param key    The key to get the size of
29  @return The size (octets) of the key or INT_MAX on error
30*/
31int ecc_get_size(ecc_key *key)
32{
33   LTC_ARGCHK(key != NULL);
34   if (ltc_ecc_is_valid_idx(key->idx))
35      return key->dp->size;
36   else
37      return INT_MAX; /* large value known to cause it to fail when passed to ecc_make_key() */
38}
39
40#endif
41/* $Source: /cvs/libtom/libtomcrypt/src/pk/ecc/ecc_get_size.c,v $ */
42/* $Revision: 1.4 $ */
43/* $Date: 2006/11/21 00:10:18 $ */
44
45