Mercurial > dropbear

annotate libtomcrypt/src/misc/error_to_string.c @ 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 f849a5ca2efc
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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.com
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10 */
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11
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12 #include "tomcrypt.h"
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14 /**
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15 @file error_to_string.c
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16 Convert error codes to ASCII strings, Tom St Denis
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17 */
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18
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19 static const char *err_2_str[] =
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20 {
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21 "CRYPT_OK",
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22 "CRYPT_ERROR",
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23 "Non-fatal 'no-operation' requested.",
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24
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25 "Invalid keysize for block cipher.",
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26 "Invalid number of rounds for block cipher.",
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27 "Algorithm failed test vectors.",
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29 "Buffer overflow.",
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30 "Invalid input packet.",
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31
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32 "Invalid number of bits for a PRNG.",
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33 "Error reading the PRNG.",
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34
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35 "Invalid cipher specified.",
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36 "Invalid hash specified.",
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37 "Invalid PRNG specified.",
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38
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39 "Out of memory.",
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40
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41 "Invalid PK key or key type specified for function.",
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42 "A private PK key is required.",
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43
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44 "Invalid argument provided.",
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45 "File Not Found",
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46
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47 "Invalid PK type.",
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48 "Invalid PK system.",
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49 "Duplicate PK key found on keyring.",
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50 "Key not found in keyring.",
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51 "Invalid sized parameter.",
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52
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53 "Invalid size for prime.",
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54
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55 };
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56
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57 /**
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58 Convert an LTC error code to ASCII
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59 @param err The error code
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60 @return A pointer to the ASCII NUL terminated string for the error or "Invalid error code." if the err code was not valid.
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61 */
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62 const char *error_to_string(int err)
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63 {
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64 if (err < 0 || err >= (int)(sizeof(err_2_str)/sizeof(err_2_str[0]))) {
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65 return "Invalid error code.";
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66 } else {
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67 return err_2_str[err];
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68 }
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69 }
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72 /* $Source: /cvs/libtom/libtomcrypt/src/misc/error_to_string.c,v $ */
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73 /* $Revision: 1.4 $ */
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74 /* $Date: 2006/03/31 14:15:35 $ */