]>
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
;
23 printf("usage: wpa_passphrase <ssid> [passphrase]\n"
24 "\nIf passphrase is left out, it will be read from "
34 fprintf(stderr
, "# reading passphrase from stdin\n");
35 if (fgets(buf
, sizeof(buf
), stdin
) == NULL
) {
36 fprintf(stderr
, "Failed to read passphrase\n");
39 buf
[sizeof(buf
) - 1] = '\0';
41 while (*pos
!= '\0') {
42 if (*pos
== '\r' || *pos
== '\n') {
51 len
= os_strlen(passphrase
);
52 if (len
< 8 || len
> 63) {
53 fprintf(stderr
, "Passphrase must be 8..63 characters\n");
56 if (has_ctrl_char((u8
*) passphrase
, len
)) {
57 fprintf(stderr
, "Invalid passphrase character\n");
61 pbkdf2_sha1(passphrase
, (u8
*) ssid
, os_strlen(ssid
), 4096, psk
, 32);
63 printf("network={\n");
64 printf("\tssid=\"%s\"\n", ssid
);
65 printf("\t#psk=\"%s\"\n", passphrase
);
67 for (i
= 0; i
< 32; i
++)
68 printf("%02x", psk
[i
]);