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/*
* WPA Supplicant - ASCII passphrase to WPA PSK tool
* Copyright (c) 2003-2005, Jouni Malinen <j@w1.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Alternatively, this software may be distributed under the terms of BSD
* license.
*
* See README and COPYING for more details.
*/
#include "includes.h"
#include "common.h"
#include "sha1.h"
int main(int argc, char *argv[])
{
unsigned char psk[32];
int i;
char *ssid, *passphrase, buf[64], *pos;
if (argc < 2) {
printf("usage: wpa_passphrase <ssid> [passphrase]\n"
"\nIf passphrase is left out, it will be read from "
"stdin\n");
return 1;
}
ssid = argv[1];
if (argc > 2) {
passphrase = argv[2];
} else {
printf("# reading passphrase from stdin\n");
if (fgets(buf, sizeof(buf), stdin) == NULL) {
printf("Failed to read passphrase\n");
return 1;
}
buf[sizeof(buf) - 1] = '\0';
pos = buf;
while (*pos != '\0') {
if (*pos == '\r' || *pos == '\n') {
*pos = '\0';
break;
}
pos++;
}
passphrase = buf;
}
if (os_strlen(passphrase) < 8 || os_strlen(passphrase) > 63) {
printf("Passphrase must be 8..63 characters\n");
return 1;
}
pbkdf2_sha1(passphrase, ssid, os_strlen(ssid), 4096, psk, 32);
printf("network={\n");
printf("\tssid=\"%s\"\n", ssid);
printf("\t#psk=\"%s\"\n", passphrase);
printf("\tpsk=");
for (i = 0; i < 32; i++)
printf("%02x", psk[i]);
printf("\n");
printf("}\n");
return 0;
}
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