The UserUtils class is the class resting on top of the Database class which holds the methods responsible for low-level user data manipulation.

encrypt

This encrypts data for a specific user.

Parameters

• $decrypted The raw data you would like to encrypt
• $username The username of the user you would like to encrypt the data for

Return

This returns one of two different things, a string or false.

false is when the IV was created incorrectly, which will only ever be if MCRYPT is not present, or when the user was not found.

A string is returned when encryption works, and it'll be the encrypted string including 32 characters on the end which is an md5 of the original data, used by the decrypt function to verify that everyone whent smoothly.

decrypt

This decrypts data from the encrypt function.

Parameters

• $encrypted The encrypted data you would like to decrypt
• $username The username of the user you would like to decrypt the data for

Return

This returns one of two different things, a string or false.

false is when the hash of the decrypted data does not match the hash of the raw data included at the end of the encrypted data or when the user was not found.

A string is returned when decryption works, and it'll be the decrypted string.