Secretsharer
A port of https://github.com/blockstack/secret-sharing to PHP. This implementation of the Shamir Secret Sharing Scheme allows you to take a secret and split it up into N shares for split control of that secret. The secret can be recovered by providing $threshold amount of shares. You determine the $threshold when generating the shares.
<?php
use Secretsharer\PlaintextSecretSharer;
$sharer = new PlaintextSecretSharer();
// Generate 4 shares and require 2 for recovering the secret
var_dump($sharer->splitSecret("ThisIsMySecretValue",2,4));
/*
Result:
array(4) {
[0]=> string(34) "1-1949b4dbf224d3a457f52b9c0d998657"
[1]=> string(33) "2-911b48f7117cdd76466fef30d2fa918"
[2]=> string(34) "3-78d9b442f00ac80a70d8d24a0cc5cbd8"
[3]=> string(34) "4-68a1b3f66efdc23d7d4aa5a10c5bee99"
}
*/<?php
use Secretsharer\PlaintextSecretSharer;
$sharer = new PlaintextSecretSharer();
var_dump(
$sharer->recoverSecret([
"1-1949b4dbf224d3a457f52b9c0d998657",
"4-68a1b3f66efdc23d7d4aa5a10c5bee99"
])
);
// Result: string(19) "ThisIsMySecretValue"