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33
votes
4answers
4k views

Why shouldn't we roll our own?

Why shouldn't we create our own security schemes? I see a lot of questions around here about custom crypto and custom security mechanisms, especially around password hashing. With that in mind, I'm ...
5
votes
1answer
150 views

Security and authentication problem

We have a sample scenario and we would like to receive some feedback and some solutions regarding possible security schemes. First of all, lets imagine a real world scenario: Imagine that a user ...
4
votes
3answers
140 views

Defense in depth vs low complexity - Balancing point?

I've asked a few questions relating to schemes for various security-related functions, and posited schemes to accomplish those goals. In the responses, I see a conflict between two fundamental ...
3
votes
1answer
112 views

Are there any uses of having a non-deterministic salt value for hashes?

So I've been toying with the idea of having non-deterministic salt values for hashes. Let me explain what I mean: Basically, I applied some properties from Bitcoin including a "difficulty" (ie, ...
1
vote
1answer
346 views

What is this QR code authentication scheme called?

What is this pattern for mobile authentication called? It's more convenient than entering complex password on mobile phone, and I wanted to read about it more A user is authenticated within webapp ...
-1
votes
1answer
371 views

Where can I find a list of Indicators of Compromise (IOC) conditions?

OpenIOC.org has several schemas defining Indicators of Compromise. The Schema is defined here: http://schemas.mandiant.com/2010/ioc/ioc.xsd While under IndicatorItemContext/search says it is ...