Posted: 19 Jan 2019 04:53 AM PST

I understand the idea of hashing to enable computer systems to check that my password is correct without ever storing my actual password (hash password, store hash, check hash of entered password against stored hash). However, I'm not clear how this works when systems ask me for certain characters from my password.

For example, how does a bank know that the 2nd, 5th and 10th character of my password is correct? I assume they don't store the unhashed password, and storing hashes of individual characters or even certain combinations of characters would surely be inherently less secure?

Edit : I wonder if this may be more of a UK thing than elsewhere - my HSBC, Nationwide and Halifax accounts all use this "enter these three specific characters" approach. My MBNA account asks for the whole password.

submitted by /u/Gavcradd
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What to learn next?

Posted: 19 Jan 2019 11:08 AM PST

I've studied math through multivar calc, diff d's, Abstract and Linear Algebra in University. If taught myself python, bash and JavaScript and know some Java. I've been studying up on networking and have set a goal for myself of passing the OSCP Pentesting with Kali. I think I need to strengthen my foundation of knowledge and skills and with so many topics and resources to cover I'm not sure what would be the optimal way to self study. I'm out of University and going into the Navy for a position dealing largely with electronics over networking and software. Im only saying this cause im not going back to school anytime soon so self study is likely my only option in the short term(i also hate school). I've just been hopping from one interesting topic to the next but I feel there must be a better way to structure my learning. Any advice? You are beautiful and appreciated even if you eat Doritos naked and sip Bawls naked at 2am in front of your computer.

submitted by /u/ziegl3r
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Levels of computer user?

Posted: 19 Jan 2019 01:41 PM PST

Does anyone have an accurate posting of what the levels are in terms of someone's computer knowledge?

So 0: Never seen a computer

1: Internet Explorer user with a ton of ad bars

2: Chrome user, might have built their own computer.

etc

submitted by /u/Doctrineate
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For the first-year students

Posted: 19 Jan 2019 08:11 AM PST

submitted by /u/AddemF
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