Having searched on google I wasn’t able to find a PHP implementation of Shamir’s secret sharing, I was only able to find a perl implementation.

So for anyone else who’s after the same thing I’ve created a (simple) PHP class which implements Shamir’s secret sharing which you can download below, it’s strongly based on the perl implementation above and is also licensed under the GNU GPL.

(It’s missing some error-condition checks in the ::recover() method.)

There’s a simple test case in the class file which’ll explain its usage.

[Download Shamir’s Secret Sharing class]

Coding php, secret, shamir, sharing