Mercurial > dropbear

annotate crypt_cipher_is_valid.c @ 162:bc4e3ac2dd5a libtomcrypt

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make data pointers volatile so that memory zeroing won't get optimised away
author Matt Johnston <matt@ucc.asn.au>
date Sun, 02 Jan 2005 17:09:05 +0000
parents d7da3b1e1540
children
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 *
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9 * Tom St Denis, [email protected], http://libtomcrypt.org
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10 */
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11 #include "mycrypt.h"
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12
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13 int cipher_is_valid(int idx)
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14 {
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15 if (idx < 0 || idx >= TAB_SIZE || cipher_descriptor[idx].name == NULL) {
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16 return CRYPT_INVALID_CIPHER;
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17 }
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18 return CRYPT_OK;
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19 }