Online PHP editor | refs for ovfh4

@ 2015-12-15T05:33:27Z

<?php

function getExpectedCiphertextSize(int $sizeOfInput) : int
{
    return 4 // Version tag
        + 16 // IV
        + 16 // HKDF Salt
        + 32 // HMAC-SHA-256
        + $sizeOfInput;
}

var_dump(getExpectedCiphertextSize(100));