1861 stories
·
8 followers

GNOME's patent-troll counterattack

1 Share
Rothschild Patent Imaging LLC filed a patent suit against the GNOME Foundation in September, asserting a violation in the Shotwell photo manager. GNOME has now gone on the counterattack, questioning the validity of the patent and whether it applies to Shotwell at all. There is also an unspecified counterclaim to strike back against Rothschild. "We want to send a message to all software patent trolls out there — we will fight your suit, we will win, and we will have your patent invalidated. To do this, we need your help."
Read the whole story
llucax
3 hours ago
reply
Berlin
Share this story
Delete

Bernardo Murphy: "Lo que se vive en las grandes ciudades es realmente caótico."

1 Share
Chile está viviendo una crisis muy importante, algo que claramente se ve reflejado en el deporte, que suspendió la fecha de la Liga Nacional de Básquet de ese país el día domingo. En este contexto charlamos con Bernardo Murphy, entrenador de Ancud, sobre como se encuentra él en esta situación y como están los jugadores argentinos […]
Read the whole story
llucax
5 hours ago
reply
Berlin
Share this story
Delete

53 Cards

4 Comments and 13 Shares
Well, there's one right here at the bottom, where it says "53."
Read the whole story
llucax
2 days ago
reply
Berlin
popular
3 days ago
reply
Share this story
Delete
4 public comments
lograh
1 day ago
reply
For a bit there I was expecting a Banach–Tarski joke.
Covarr
3 days ago
reply
If there's one thing I know about binary, it's that 1+1=10. If there's one thing I know about basic arithmetic, it's that 10-2=8. So if you spend one energy unit, then spend one more, and have a net gain of 8, that sounds pretty perpetual to me.
Moses Lake, WA
davidar
3 days ago
reply
Also people claiming to have invented lossless compression schemes which are guaranteed to compress every possible file.
zippy72
2 days ago
And got parents on them approved as well...
alt_text_bot
3 days ago
reply
Well, there's one right here at the bottom, where it says "53."

Travel Type

1 Share
Difference between tourists and travellers
------------------------------------------------------------------------------------------------------------------

...no matter who you are!


Read the whole story
llucax
2 days ago
reply
Berlin
Share this story
Delete

leah blogs: Ken Thompson's Unix password

1 Comment and 10 Shares

Somewhere around 2014 I found an /etc/passwd file in some dumps of the BSD 3 source tree, containing passwords of all the old timers such as Dennis Ritchie, Ken Thompson, Brian W. Kernighan, Steve Bourne and Bill Joy.

Since the DES-based crypt(3) algorithm used for these hashes is well known to be weak (and limited to at most 8 characters), I thought it would be an easy target to just crack these passwords for fun.

Well known tools for this are john and hashcat.

Quickly, I had cracked a fair deal of these passwords, many of which were very weak. (Curiously, bwk used /.,/.,, which is easy to type on a QWERTY keyboard.)

However, kens password eluded my cracking endeavor. Even an exhaustive search over all lower-case letters and digits took several days (back in 2014) and yielded no result. Since the algorithm was developed by Ken Thompson and Robert Morris, I wondered what’s up there. I also realized, that, compared to other password hashing schemes (such as NTLM), crypt(3) turns out to be quite a bit slower to crack (and perhaps was also less optimized).

Did he really use uppercase letters or even special chars? (A 7-bit exhaustive search would still take over 2 years on a modern GPU.)

The topic came up again earlier this month on The Unix Heritage Society mailing list, and I shared my results and frustration of not being able to break kens password.

Finally, today this secret was resolved by Nigel Williams:

From: Nigel Williams <<a href="mailto:nw@retrocomputingtasmania.com">nw@retrocomputingtasmania.com</a>>
Subject: Re: [TUHS] Recovered /etc/passwd files

ken is done:

ZghOT0eRm4U9s:p/q2-q4!

took 4+ days on an AMD Radeon Vega64 running hashcat at about 930MH/s
during that time (those familiar know the hash-rate fluctuates and
slows down towards the end).

This is a chess move in descriptive notation, and the beginning of many common openings. It fits very well to Ken Thompson’s background in computer chess.

I’m very happy that this mystery has been solved now and I’m pleased of the answer.

[Update 16:29: fix comment on chess.]

NP: Mel Stone—By Now

Read the whole story
llucax
11 days ago
reply
Berlin
popular
12 days ago
reply
Share this story
Delete
1 public comment
jepler
12 days ago
reply
ha!
Earth, Sol system, Western spiral arm

How Old

1 Comment and 5 Shares
We've met! I remember you when you were thiiiis tall! [*holds a hand an inch above their head*]
Read the whole story
llucax
13 days ago
reply
Berlin
Share this story
Delete
1 public comment
alt_text_bot
13 days ago
reply
We've met! I remember you when you were thiiiis tall! [*holds a hand an inch above their head*]
Next Page of Stories