Hi.
Where did you find new YM for Linux? I couldnt find it at
http://messenger.yahoo.com.
I assume you meant official YM.
Thanks.
Amish.
Philip S Tellis wrote:
> >If any of you plan on using the latest yahoo messenger for linux,
> What about a birthday attack? a birthday attack seems to work against MD5
Doesn't help.
A birthday attack means you can find two messages with the same hash
(i.e. a collision). It doesn't enable you to find a second message
with a particular hash value.
To sum it up
1. To finda particular hash:
Given H(m1) find m2 such that H(m2)=H(m1)
If H is a cryptographic hashing function with n-bits this requires 2^n
operations
2. To find a collision (birthday attack)
Find m1 and m2 such that H(m1) = H(m2)
This takes 2^(n/2) operations
Thus for a birthday attack to be successful, you need control over
BOTH the hashes. Thus it can be used to attack a digital signature
scheme by producing a good message and a malicious message with the
same hash (and thus same signature). It can't be used to recover
passwords.
Anyhow, even a birthday attack takes 213 days for our fantastic
trillion-MD5-ops-per-second machine... definately doable by the NSA,
CIA, KGB or something... but still not of much concern to most.
A birthday attack is fairly easy to defeat in a digital signature
scheme, plus if you're really paranoid you can use the 160-bit SHA
algorithm instead.
I know this question does not belong here.
Heck but I don't know anyone who uses Usenet.So plz bear with me.
So how do I use Usenet?
I've rough idea that you have to use ur ISP's server or something.
I use Pine and my ISP is VSNL and MTNL
Plz guide.
P.S.
If u think this is way off topic plz mail me at:
nikhiljoshi(a)subdimension.com
--
We should take pride in our mediocrity
-- Calvin
What about a birthday attack? a birthday attack seems to work against MD5
Nikhil
>>>Random strings are harder to get, but still possible with a brute
>>>force
>>>approach (a cracker that tries every combination of n letters, digits
>>>and special characters that exist). This however takes very long and
>>>is
>>>not feasible for most.
>>
>>"not feasible for most" is a gross understatement.
>>
>>The MD5 hash is 128 bits long. This means that there are
>>340,282,366,920,938,463,463,374,607,431,768,211,456 values. This means
>>that even if you could try a TRILLION combinations a second it would take
>>you 10,790,283,070,806,014,188 years to break!
>>
>>A brute force attack against MD5 won't work.
>
> However a dictionary attack is much more likely to work against
>this algorithm. That is not due to any weakness of the algo but due to
>human tendency of picking works like "god" , "password" etc as passwords.
>-- vinayak hegde
>
>_______________________________________________
>http://mm.ilug-bom.org.in/mailman/listinfo/linuxers
>
_________________________________________________________________
MSN Photos is the easiest way to share and print your photos:
http://photos.msn.com/support/worldwide.aspx
On Tue, 2 Apr 2002 20:42:38
Vinay Pai wrote:
>
>There also is a font de-uglification HOWTO that might help.
>http://www.linuxdoc.org
>
Yeah, but it's sick and somewhat out-dated. I had a tough time comprehending it until someone on a newsgroup pointed out the other one. The curious may try it out :-)
---
Tahir Hashmi (VSE, NCST)
http://www.ncst.ernet.in/~tahir
tahir AT ncst DOT ernet DOT in
__________________________________
We, the rest of humanity, wish GNU luck and Godspeed
See Dave Matthews Band live or win a signed guitar
http://r.lycos.com/r/bmgfly_mail_dmb/http://win.ipromotions.com/lycos_02020…
Been racking my brain on this one for long time.
I use bash and I would like to have a file containing all the commands I
can execute.
Now when i press TAB-TAB at prompt it shows
Display all 1710 possibilities? (y or n)
now if i press y the whole list scrolls by and i can view only the last
screen :(
Is it possible to redirect the output to a file?
--
"Who can fathom the feminine mind?" -Calvin "I like `em anyway" -Hobbes
> sachin wrote:
>>hi there
>>i am not very confident about the conversion of the fonts
>>from windows to the LINUX
>
> As Philip said, there's no need to convert the fonts. A step-by-step procedure for using Windows TT fonts is given here:
>
> http://home.c2i.net/dark/linux.html#ttf
There also is a font de-uglification HOWTO that might help.
http://www.linuxdoc.org
Hi!
Just had power failure. hallelujah !
Now I can test ext3 :)
During startup it asked whether it should perform file-system integrity
test .
I pressed y and after checking it showed something like this
(0.5 % non-contiguous)
Does this mean my file-system is fragmented?
How do I defragment it?
--
Miss Wormwood: What state do you live in?
Calvin: Denial.
Miss Wormwood: I don't suppose I can argue with that...
hi there
i want to set up the network thru the dialup line and
how can it be automated
sachin
--
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sachin(a)mediaibc.com
MediaIBC
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"Beware of programmers carrying screwdrivers."
-- Chip Salzenberg
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