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Use stronger PRNG for MS-MPPE-Send/Recv-Key salt

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When generating a MS-MPPE-Send/Recv-Key, don't use a weak PRNG for the
salt.

Signed-off-by: Nick Lowe <nick.lowe@lugatech.com>
This commit is contained in:
Nick Lowe 2016-02-07 10:11:46 +00:00 committed by Jouni Malinen
parent 9e1f1bdb6f
commit c06c9099f0
1 changed files with 3 additions and 1 deletions
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4
src/radius/radius.c
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@ -1197,7 +1197,9 @@ int radius_msg_add_mppe_keys(struct radius_msg *msg,
vhdr = (struct radius_attr_vendor *) pos;
vhdr->vendor_type = RADIUS_VENDOR_ATTR_MS_MPPE_SEND_KEY;
pos = (u8 *) (vhdr + 1);
salt = os_random() | 0x8000;
if (os_get_random((u8 *) &salt, sizeof(salt)) < 0)
return 0;
salt |= 0x8000;
WPA_PUT_BE16(pos, salt);
pos += 2;
encrypt_ms_key(send_key, send_key_len, salt, req_authenticator, secret,