Hello again, I have another problem.
In the step 2:
2. Compute the 16 octet MD5 hash of X. Call the result Y.
%Y = $md5(%X)
sometimes the md5 result includes some "00". For example:
borrame:jabber.dk:hola
its MD5 is:
8ec8d3570700b4f2722604385d3eb79a
When converting to ASCii, I can't convert "00" because it's no
representable almost in mIRC scripting, that returns a null value for
ascii 0.
Then the result is a 15 character string instead 16.
How I can resolve this, the 00 hex can be replaced by other value?
Thanks for you patience.
IRcapmail escribió:
%Y = $hex2chr($md5(%X))
returns: …CV
Can you tell the correct valour for testuser456:jabber.org:pass456 to
compare ?
Norman Rasmussen escribió:
On Thu, Feb 18, 2010 at 2:37 PM, IRcapmail <[email protected]> wrote:
Thank you, Waqas.
I have fixed step 3, but I don't know how to compute the 16 octect in
step
2. The $md5(X) always returns 32 characters. I have tried to get the
first
16 and last 16 characters, but the response is wrong.
it sounds like this is returning md5hex, and not the raw characters.
You
need to convert the 32 chars into 16 octects using hex2chr as shown here:
http://www.hawkee.mobi/snippet/6505/
I don't know if its a limitation of the mIRC's language and its
possible to
create md5 hashes with 16 chars in others more "professional"
languages, or
I'm doing something wrong.
Waqas Hussain escribió:
On Thu, Feb 18, 2010 at 4:04 AM, IRcapmail <[email protected]> wrote:
2. Compute the 16 octet MD5 hash of X. Call the result Y.
%Y = $md5(%X)
Result= 85434cc70bb832bc456c27834bfa5d25
This is incorrect. You need 16 octets, but your result is 32 octets.
Don't
hex encode in this step.
3. Create a string of the form "Y:nonce:cnonce:authzid". Call this
string
A1.
%A1 = %Y $+
:x8djfKCd/aoKCUIeI5IwN0lNGzs91oSdMCR7SZT6L9s=:EzAaOdnJwGDj2ABlUat3a1ZPeH06Pyzic6PpnVnqkBE=:
[email protected]/Psi
Result=
85434cc70bb832bc456c27834bfa5d25:x8djfKCd/aoKCUIeI5IwN0lNGzs91oSdMCR7SZT6L9s=:EzAaOdnJwGDj2ABlUat3a1ZPeH06Pyzic6PpnVnqkBE=:
[email protected]/Psi
You are including an authzid here, Psi didn't. When there is no
authzid,
you
use:
A1 = Y:nonce:cnonce
A note about authzid: You must not provide an authzid when it's the
same
as
the JID you are logging in with. And when provided, it has to be a bare
JID.
See the spec:
http://xmpp.org/internet-drafts/draft-ietf-xmpp-3920bis-04.html#sasl-rules-authzid
The rest of your code is correct, and I managed to get the correct
result
with the above two fixes.
--
Waqas Hussain
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