sin/samba-mirror
1
0
Fork 0
mirror of https://github.com/samba-team/samba.git synced 2024-12-27 03:21:53 +03:00
Code

r3294: Fix for SMB signing with 56-bit DES session keys. From Nalin Dahyabhai <nalin@redhat.com>.

Browse Source 
Jeremy.
(This used to be commit 55d23cb253)
This commit is contained in:
Jeremy Allison 2004-10-27 17:40:28 +00:00 committed by Gerald (Jerry) Carter
parent e53aa4700f
commit e798a6b9fe
1 changed files with 9 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
source3/libsmb/smb_signing.c
View File

@ -255,6 +255,7 @@ static void simple_packet_signature(struct smb_basic_signing_context *data,
const size_t offset_end_of_sig = (smb_ss_field + 8);
unsigned char sequence_buf[8];
struct MD5Context md5_ctx;
unsigned char key_buf[16];
/*
* Firstly put the sequence number into the first 4 bytes.
@ -276,8 +277,14 @@ static void simple_packet_signature(struct smb_basic_signing_context *data,
MD5Init(&md5_ctx);
/* intialise with the key */
MD5Update(&md5_ctx, data->mac_key.data,
data->mac_key.length);
/* NB. When making and verifying SMB signatures, Windows apparently
zero-pads the key to 128 bits if it isn't long enough.
From Nalin Dahyabhai <nalin@redhat.com> */
MD5Update(&md5_ctx, data->mac_key.data, data->mac_key.length);
if (data->mac_key.length < sizeof(key_buf)) {
memset(key_buf, 0, sizeof(key_buf));
MD5Update(&md5_ctx, key_buf, sizeof(key_buf) - data->mac_key.length);
}
/* copy in the first bit of the SMB header */
MD5Update(&md5_ctx, buf + 4, smb_ss_field - 4);