Need Help

[pycraze]

Hi ,

I need some info about the following snippet .

-----------------------------------------------------------
protocol = 'NTLMSSP\000' #name
type = '\001\000' #type 1
zeros1 = '\000\000'

zeros2 = '\000\000\000\000\000\000\000\000\000'
zeros3 = '\000\000\000\000\000\000\000\000\000\000\000'
smthg1 = '0\000\000\000\000\000\000\000' # something with
chr(48) length?
smthg2 = '0\000\000\000' # something with
chr(48) lenght?


msg1 = protocol + type + zeros1 + flags + zeros2 + zeros3 +
smthg1 + smthg2
msg1 = base64.encodestring(msg1)
msg1 = string.replace(msg1, '\012', '')
-------------------------------------------------------

In the above code what does "
000\000\000\000\000\000\000\000\000 " signify ? Which form of
representation is this ?

This code is from the NTLM APS python code from sourceforge 0.98
version .

 

[Marc 'BlackJack' Rintsch]

In the above code what does "
000\000\000\000\000\000\000\000\000 " signify ? Which form of
representation is this ?

\nnn is the octal representation of a byte. The snippet you've shown
contains mostly zero bytes:

In [10]: a = '\000'

In [11]: a
Out[11]: '\x00'

In [12]: ord(a)
Out[12]: 0

Ciao,
Marc 'BlackJack' Rintsch

 

[Paul McGuire]

Hi ,

I need some info about the following snippet .

-----------------------------------------------------------
protocol = 'NTLMSSP\000' #name
type = '\001\000' #type 1
zeros1 = '\000\000'

zeros2 = '\000\000\000\000\000\000\000\000\000'
zeros3 = '\000\000\000\000\000\000\000\000\000\000\000'
smthg1 = '0\000\000\000\000\000\000\000' # something with
chr(48) length?
smthg2 = '0\000\000\000' # something with
chr(48) lenght?

msg1 = protocol + type + zeros1 + flags + zeros2 + zeros3 +
smthg1 + smthg2
msg1 = base64.encodestring(msg1)
msg1 = string.replace(msg1, '\012', '')
-------------------------------------------------------

In the above code what does "
000\000\000\000\000\000\000\000\000 " signify ? Which form of
representation is this ?

This code is from the NTLM APS python code from sourceforge 0.98
version .

I think redoing this code using the struct module would make the
behavior and intent clearer, rather than trying to encode binary data
directly into strings.

-- Paul