php Programming Glossary: randomness

http://stackoverflow.com/questions/1041509/php-best-random-numbers

a number returned by a PRNG doesn't really increase its randomness and in fact the number can become less random. So my best advice.. range. That method takes into account the difference in randomness of the parts of the value so it can return a better random number..

How to encrypt/decrypt data in php?

http://stackoverflow.com/questions/10916284/how-to-encrypt-decrypt-data-in-php

as possible. IV The initialisation vector adds some randomness to the encryption it's a required parameter for CFB mode. These..

str_shuffle and randomness

http://stackoverflow.com/questions/14079703/str-shuffle-and-randomness

and randomness A while back I wrote a random string generator that builds.. really keen to learn was what algorithm does it use for randomness The manual doesn't mention what kind of randomization is done.. function to generate passwords so the quality of the randomness matters. UPDATE As has been pointed out the str_shuffle method..

Soccer simulation for a game

http://stackoverflow.com/questions/1427043/soccer-simulation-for-a-game

Tactical settings which should have an influence on the randomness adjustment 1 defensive 2 neutral 3 offensive the higher the..

Generate random date between two dates using php

http://stackoverflow.com/questions/1972712/generate-random-date-between-two-dates-using-php

has mt_rand which is generally purported to have better randomness in the results int mt_rand 1262055681 1262055681 To turn a timestamp..

PHP - CSRF - How to make it works in all tabs?

http://stackoverflow.com/questions/2695153/php-csrf-how-to-make-it-works-in-all-tabs

then you can put extra things in the token other than the randomness for example user id token dechex user id .'.'.dechex mt_rand..

How to create and use nonces

http://stackoverflow.com/questions/4145531/how-to-create-and-use-nonces

needs to return a random number or string. The better the randomness the better the security... Also note that since it's fed right..

Better Random Generating PHP

http://stackoverflow.com/questions/5611/better-random-generating-php

if you're on Linux BSD etc. is to use dev random . If the randomness is mission critical you will have to use a hardware random generator..

How random is PHP's shuffle function?

http://stackoverflow.com/questions/5694319/how-random-is-phps-shuffle-function

is PHP's shuffle function Does anyone know what's the randomness of PHP's shuffle function Does it depend on the operating system.. algorithm . This is a fast generator but with more or less randomness. Since PHP 4.2.0 the random generator is seeded automatically.. . Writing you own shuffle function will yield to better randomness but will be slower than the builtin shuffle function. share..

What's the disadvantage of mt_rand?

http://stackoverflow.com/questions/7808021/whats-the-disadvantage-of-mt-rand

or cryptographic keys either. If you need cryptographic randomness use openssl_random_pseudo_bytes . You can use the crypto_strong..

Update old stored md5 passwords in PHP to increase security

http://stackoverflow.com/questions/8841719/update-old-stored-md5-passwords-in-php-to-increase-security

is not a salt. It's deterministic meaning that there is no randomness in there at all . If you want a salt use either mcrypt_create_iv..