Replace custom random number generation code with one implementation that uses random_bytes()
Require PHP >= 7.0 for random_bytes()
random_bytes() uses getrandom() on linux
Note: Although unlikely random_bytes() can throw, which means that tiqr-server-libphp functions that previously did not throw can now thow an exception. I think this is better than e.g. the silent fallback to the non cryptogrphically secure mt_rand()
Replace custom random number generation code with one implementation that uses random_bytes() Require PHP >= 7.0 for random_bytes() random_bytes() uses getrandom() on linux
Note: Although unlikely random_bytes() can throw, which means that tiqr-server-libphp functions that previously did not throw can now thow an exception. I think this is better than e.g. the silent fallback to the non cryptogrphically secure mt_rand()