A description and set of rules for the ordered exchange of structured information designed with the goal of protecting the security of the system.

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30
votes
7answers
48k views

What is the difference in security between a VPN- and a SSL-connection?

I would like to design a client-server application where the server is placed on Internet. I assume that I could set up the client-server connection using VPN (is it using IPSec?) or using a SSL ...
8
votes
3answers
4k views

What common products use Public-key cryptography?

I want know what common use products are there that use public key/private key cryptography?
8
votes
1answer
853 views

What were the specific security flaws with OAuth 1.0? How are they being addressed in 2.0?

I read an article documenting Twitter abruptly pulling its OAuth support back in April 2009. The article said it wouldn't specify the hole for security reasons, but mentioned "social engineering" is ...
7
votes
3answers
1k views

How do I identify an unknown port/protocol that my IDS picks up?

Googling a port and protocol leads to a terse description at best, and a linkfarm in the average case. Most protocols on assorted, unknown high ports contain little or no plaintext, and often if the ...