Monthly Meetup: Let's get random: Under the hood of PHP 7's CSPRNG

This is a past event

16 people went

Every 3rd Tuesday of the month


107 SE Stark St · Portland, OR

How to find us

Head to the Stark street door and hang out outside for someone to open the door. If no one is down there feel free to PM one of the organizers to be let in.

Location image of event venue


This month we're excited to have Sammy Kaye Powers in! Sammy has spoken at many events and is one of the best speakers I know.

Randomness is really important in many cryptographic contexts. Unfortunately, true randomness is a non-trivial achievement for computers. In fact, using weak sources of randomness can leave your application open to myriad vulnerabilities. Enter a good cryptographically secure pseudorandom number generator (CSPRNG).

We’ll discuss the importance of using good sources of randomness, the CSPRNG options we had in PHP 5, and how the new-goodness CSPRNG functions in PHP 7 work under the hood.

We will be back at the Graybox offices again and will have food sponsored by concrete5!