Security Tips
Security Tip: Stop Using MD5 and SHA-1!
[Tip #87] MD5 is like a cockroach - it's persistent and pops up everywhere, but one thing is very clear: you need to stop using it (and SHA-1 too)!
In Depth
In Depth: Introducing Random
[InDepth#22] Random generates cryptographically secure random values in a range of different formats through a simple helper package for PHP.
Security Tips
Security Tip: Cryptographically Secure Randomness
[Tip#19] Because all randomness should be cryptographically secure.