Ask Lemmy

26753 readers

1292 users here now

A Fediverse community for open-ended, thought provoking questions

Please don't post about US Politics. If you need to do this, try [email protected]

Rules: (interactive)

1) Be nice and; have fun

Doxxing, trolling, sealioning, racism, and toxicity are not welcomed in AskLemmy. Remember what your mother said: if you can't say something nice, don't say anything at all. In addition, the site-wide Lemmy.world terms of service also apply here. Please familiarize yourself with them

2) All posts must end with a '?'

This is sort of like Jeopardy. Please phrase all post titles in the form of a proper question ending with ?

3) No spam

Please do not flood the community with nonsense. Actual suspected spammers will be banned on site. No astroturfing.

4) NSFW is okay, within reason

Just remember to tag posts with either a content warning or a [NSFW] tag. Overtly sexual posts are not allowed, please direct them to either [email protected] or [email protected]. NSFW comments should be restricted to posts tagged [NSFW].

5) This is not a support community.

It is not a place for 'how do I?', type questions. If you have any questions regarding the site itself or would like to report a community, please direct them to Lemmy.world Support or email [email protected]. For other questions check our partnered communities list, or use the search function.

Reminder: The terms of service apply here too.

Partnered Communities:

Logo design credit goes to: tubbadu

founded 1 year ago

MODERATORS

[email protected]

What is the best type of smart lock? (lemmy.dbzer0.com)

submitted 4 months ago by [email protected] to c/[email protected]

57 comments fedilink hide all child comments

Hello Lemmy!

I have moved to a walkable area and no longer need to have my car keys on me all the time. My landlord has put in a crappy 4 digit combination style door lock, but said I could change it.

What is the best kind of keyless door lock that I can use instead? Ideally one with decent enough security to be as good or better than a key?

Thanks for your input!

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 2 points 4 months ago (1 children)

How is it only 24? What am I missing? 0-0-0-0 to 9-9-9-9, no?

[–] [email protected] 1 points 4 months ago* (last edited 4 months ago) (1 children)

This is where I got that number from, and it assumes that there are no repeated buttons.

https://socratic.org/questions/how-do-you-figure-out-the-number-of-combinations-in-4-digit-numbers

[–] [email protected] 1 points 4 months ago (2 children)

Ah, ok, so there's only 4 numbers to work with, and the code has to be a length of 4 as well? Can numbers not be repeated? It should be 4^4 I believe, because you can do 1-1-1-1, 1-1-1-2 etc.

[–] [email protected] 1 points 4 months ago (1 children)

Their assumption is that it is four digits long and the person knows which four digits but not the order.

[–] [email protected] 3 points 4 months ago

Ah, ok. So it's not just trying all combinations. The numbers could be worn out from pressing over and over, for example.

[–] [email protected] 1 points 4 months ago* (last edited 4 months ago)

Assuming the numbers go from 0 to 9 (those included) and can be repeated, it must be 10 * 10 * 10 * 10 = 10000 combinations :-)