Programming, Topic: Security

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Forcing Secure Cookies Behind an ELB in Ruby/Rails

As part of general security good practices, you should always (whenever possible):

  • use HTTPS to serve all requests
  • serve redirects to upgrade HTTP requests to HTTPS
  • set session cookies to secure and http_only
  • enable HTTP Strict Transport Security (HSTS)

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A Quick Look at RC4

In cryptography work, RC4 (Rivest Cipher 4) is well known as both one of the easiest to implement and fastest to run symmetric encryption algorithms. Unfortunately, over time there have been a number of attacks on RC4, both in poorly written protocols (such as in the case of WEP) or statistical attacks against the protocol itself.

Still, for how well it formed, it’s an amazingly simple algorithm, so I decided to try my hand at implementing it.

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