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git.ipfire.org Git - thirdparty/hostap.git/blob - wpa_supplicant/wpa_passphrase.c
2 * WPA Supplicant - ASCII passphrase to WPA PSK tool
3 * Copyright (c) 2003-2005, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
12 #include "crypto/sha1.h"
15 int main(int argc
, char *argv
[])
17 unsigned char psk
[32];
19 char *ssid
, *passphrase
, buf
[64], *pos
;
22 printf("usage: wpa_passphrase <ssid> [passphrase]\n"
23 "\nIf passphrase is left out, it will be read from "
33 printf("# reading passphrase from stdin\n");
34 if (fgets(buf
, sizeof(buf
), stdin
) == NULL
) {
35 printf("Failed to read passphrase\n");
38 buf
[sizeof(buf
) - 1] = '\0';
40 while (*pos
!= '\0') {
41 if (*pos
== '\r' || *pos
== '\n') {
50 if (os_strlen(passphrase
) < 8 || os_strlen(passphrase
) > 63) {
51 printf("Passphrase must be 8..63 characters\n");
55 pbkdf2_sha1(passphrase
, (u8
*) ssid
, os_strlen(ssid
), 4096, psk
, 32);
57 printf("network={\n");
58 printf("\tssid=\"%s\"\n", ssid
);
59 printf("\t#psk=\"%s\"\n", passphrase
);
61 for (i
= 0; i
< 32; i
++)
62 printf("%02x", psk
[i
]);