Mercurial > dropbear

annotate libtomcrypt/src/headers/tomcrypt_argchk.h @ 994:5c5ade336926

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Prefer stronger algorithms in algorithm negotiation. Prefer diffie-hellman-group14-sha1 (2048 bit) over diffie-hellman-group1-sha1 (1024 bit). Due to meet-in-the-middle attacks the effective key length of three key 3DES is 112 bits. AES is stronger and faster then 3DES. Prefer to delay the start of compression until after authentication has completed. This avoids exposing compression code to attacks from unauthenticated users. (github pull request #9)
author Fedor Brunner <fedor.brunner@azet.sk>
date Fri, 23 Jan 2015 23:00:25 +0800
parents 0cbe8f6dbf9e
children 38d2f6b2d1b8
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1 /* Defines the LTC_ARGCHK macro used within the library */
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2 /* ARGTYPE is defined in mycrypt_cfg.h */
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3 #if ARGTYPE == 0
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5 #include <signal.h>
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7 /* this is the default LibTomCrypt macro */
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8 void crypt_argchk(char *v, char *s, int d);
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9 #define LTC_ARGCHK(x) if (!(x)) { crypt_argchk(#x, __FILE__, __LINE__); }
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10 #define LTC_ARGCHKVD(x) LTC_ARGCHK(x)
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12 #elif ARGTYPE == 1
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14 /* fatal type of error */
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15 #define LTC_ARGCHK(x) assert((x))
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16 #define LTC_ARGCHKVD(x) LTC_ARGCHK(x)
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18 #elif ARGTYPE == 2
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20 #define LTC_ARGCHK(x) if (!(x)) { fprintf(stderr, "\nwarning: ARGCHK failed at %s:%d\n", __FILE__, __LINE__); }
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21 #define LTC_ARGCHKVD(x) LTC_ARGCHK(x)
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23 #elif ARGTYPE == 3
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25 #define LTC_ARGCHK(x)
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26 #define LTC_ARGCHKVD(x) LTC_ARGCHK(x)
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28 #elif ARGTYPE == 4
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30 #define LTC_ARGCHK(x) if (!(x)) return CRYPT_INVALID_ARG;
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31 #define LTC_ARGCHKVD(x) if (!(x)) return;
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33 #endif
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36 /* $Source: /cvs/libtom/libtomcrypt/src/headers/tomcrypt_argchk.h,v $ */
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37 /* $Revision: 1.5 $ */
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38 /* $Date: 2006/08/27 20:50:21 $ */