A good mechanical keyless door lock with lever?

[TheStupid]

What would be a good mechanical keyless door lock with lever? Note, i don't want anything powered by batteries.

I am looking at Lockey Digital. Are they good?

link deleted-keysman

[Jaakko]

That is easily decodable lock if my memory is correct, I would not use it.

[sfi72]

That is easily decodable lock if my memory is correct, I would not use it.

Yeah, you would be better going for one that needs batteries. These can be decoded in less then 30 seconds, by pretty much anyone with a little bit of practice.

[TheStupid]

OK, would you guys recommend one that is reliable?

[FrenchKey]

That is easily decodable lock if my memory is correct, I would not use it.

Yeah, you would be better going for one that needs batteries. These can be decoded in less then 30 seconds, by pretty much anyone with a little bit of practice.

Hello,
Could you explain how to decode it so quickly ?
I know a method for finding the code easily for a in-use lock (I don't know if it can be shared in public), but I tried several time on the one I own to find the code from scratch, and I did'nt manage.

(feel free to answer in Advanced forums or by PM if needed)

thank you

FrenchKey

[TheStupid]

How about Codelock 410 Keyless lock?

link deleted-keysman

[Jaakko]

How about Codelock 410 Keyless lock?

link deleted-keysman#

Easily decoded.

[Tyler J. Thomas]

They're all the same locks produced by the now defunct Digital Systems, just re-branded. Jaako, could you elaborate what you mean by easily decoded? Is this from outside the lock or with the lock in your hands?

[Squelchtone]

Jaakko,

Are Simplex such as this one still as easy to decode as they used to be? I thought they improved on the design and fixed the exploit of varied button resistance.

would THIS be any good for the OP?

Thanks,
Squelchtone

[Tyler J. Thomas]

Hello,
Could you explain how to decode it so quickly ?
I know a method for finding the code easily for a in-use lock (I don't know if it can be shared in public), but I tried several time on the one I own to find the code from scratch, and I did'nt manage.

(feel free to answer in Advanced forums or by PM if needed)

thank you

FrenchKey

Well, if it's been in use enough and you can detect wear in certain buttons, you can figure the combination out pretty quickly. Codelocks, Digital Systems, Lockey, etc. locks don't require any sort of sequential order so a combination of 2134Y is the exact same as 3421Y in the eyes of the lock. If you can make an educated guess to the most used numbers/letters then you have a good chance of opening the lock.

I was also taught a way to decode based on probing the tumblers but I'd venture that kind of information isn't appreciated in the public area so I won't step on any toes.

[lockinabox]

Why the aversion to electronic? The battery typically does not need to be changed for 2-4 years. No decoding or other bypass methods on most of the popular models.
And most of them have a timeout period if the incorrect code is entered a certain number of times in a row. No mechanical lock will have this feature so someone can spend however much time they have available guessing the combination.

Is changing the battery once every 2-4 years really that bad?

[Jaakko]

Squelchtone, any more info on that change? That was one of things I was thinking when I said easily decoded

The other problem is partly what Confederate just told. The combinations are just a group of numbers, not a unique string. And the lock has 10 number buttons, which can be either pressed or not. This means the lock has only 2^10 = 1024 combinations and of those about 1/4th is 5-number combinations. Add to the problem that people like to use certain codes, like birthdays or patterns on the keypad and the manufacturer usually says to choose a combination that has 4-6 numbers. This effectively drops the amount of combinations trials down to a very low number and it is just a matter of punching in the usual suspects.

[Tyler J. Thomas]

This means the lock has only 2^10 = 1024 combinations

Hmm, I've never really looked at it that way. Interesting.

[FrenchKey]

Well, if it's been in use enough and you can detect wear in certain buttons, you can figure the combination out pretty quickly. Codelocks, Digital Systems, Lockey, etc. locks don't require any sort of sequential order so a combination of 2134Y is the exact same as 3421Y in the eyes of the lock. If you can make an educated guess to the most used numbers/letters then you have a good chance of opening the lock.

I was also taught a way to decode based on probing the tumblers but I'd venture that kind of information isn't appreciated in the public area so I won't step on any toes.

I knew that method, but it's only in relation with used lock, in a penetration mission. Another method is to use a special pen to use before someone uses the lock (I don't want to say more in public, but you probably now what pen I mean) I was looking for a method for decoding the lock itself, using mechanical flaws.


Concerning the number of possible codes, it's 1287 for a 5 digit combo. I have a Excel file with all of them listed.

But the interesting stuff is to decode the lock frome scratch (I have to practice on my lock !)

[Rickthepick]

the cheap digital keypad locks are reasonably easy to open with the exception of the Zone ones by feeling for the resisting buttons. I think the more expensive Kaba locks are the best to go for