Thread: Password encoding/decoding - PHP

• • • • Originally Posted by Atli Thanks. I did use an array at first, adding each hash as an element and them imploding it before creating the final hash. (Like you do in your code.) However, after testing that I found that this method uses double the amount of memory the string concatenation method uses. Makes sense when you think about it. Both the array and the string will have to exist in memory at the...

Thanks. • • • • You could optimize the string concatenation. I did use an array at first, adding each hash as an element and them imploding it before creating the final hash. (Like you do in your code.) However, after testing that I found that this method uses double the amount of memory the string concatenation method uses. Makes sense when you think about it. Both the array and the string will have to...

I think she recommended high memory usage so that the effort needed to try to recreate/hack any of the passwords would be excessive and not worth it. But if you use up that much processing/memory, wouldn't you make it untenable to be used within a login/registering system? For even a reasonable amount of requests even.

Thanks alot for your help, however, I am using 4.3.9, sorry I should have mentioned this to begin with, the code you gave strictly php5?

It can be changed to work with PHP 4. You just need to change the PHP 5 features to 4: php Syntax ( Toggle Plain Text ) <?php   class Encryption { var $cypher = 'blowfish' ; var $mode = 'cfb' ; var $key = '1a2s3d4f5g6h' ;   function Encryption ( ) { // do nothing }   function encrypt ( $plaintext ) { $td =...

can this store, say for instance, a PayPal token that I am supposed to keep hidden?