mirror of
https://dev.iopsys.eu/bbf/bbfdm.git
synced 2025-12-10 07:44:39 +01:00
ff14c27fc3
- remove unused variables - fix coding style of most function (Indentation, Tabulation, ..) - check the source code using cppcheck tool - change sprintf by snprintf
61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
/*
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* Copyright (C) 2019 iopsys Software Solutions AB
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 2.1
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* as published by the Free Software Foundation
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*
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* Author: MOHAMED Kallel <mohamed.kallel@pivasoftware.com>
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "wepkey.h"
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void wepkey64(char *passphrase, char strk64[4][11])
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{
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unsigned char k64[4][5];
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unsigned char pseed[4] = {0};
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unsigned int randNumber, tmp;
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int i, j;
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for(i = 0; i < strlen(passphrase); i++)
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{
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pseed[i%4] ^= (unsigned char) passphrase[i];
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}
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randNumber = pseed[0] | (pseed[1] << 8) | (pseed[2] << 16) | (pseed[3] << 24);
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for (i = 0; i < 4; i++)
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{
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for (j = 0; j < 5; j++)
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{
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randNumber = (randNumber * 0x343fd + 0x269ec3) & 0xffffffff;
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tmp = (randNumber >> 16) & 0xff;
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k64[i][j] = (unsigned char) tmp;
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}
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snprintf(strk64[i], sizeof(strk64[i]), "%02X%02X%02X%02X%02X", k64[i][0], k64[i][1], k64[i][2], k64[i][3], k64[i][4]);
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}
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}
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void wepkey128(char *passphrase, char strk128[27])
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{
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int i = 0;
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char dup[65] = {0};
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unsigned char out[MD5_DIGEST_SIZE];
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struct MD5Context c;
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while (i < 64) {
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strncpy(dup + i, passphrase, 64 - i);
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i = strlen(dup);
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}
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MD5Init(&c);
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MD5Update(&c, dup, 64);
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MD5Final(out, &c);
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for(i = 0; i < 13; i++)
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sprintf(strk128 + 2 * i, "%02X", out[i]);
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}
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