(PHP 4 >= 4.0.6, PHP 5, PHP 7) Decrypts data with private key

(PHP 5 >= 5.1.2, PHP 7, PECL hash >= 1.1) Generate a hash value using the contents of a given file

(PHP 4 >= 4.0.2, PHP 5, PHP 7) Closes the mcrypt module

(PHP 5 >= 5.3.0, PHP 7) Gets available cipher methods

(PHP 4 >= 4.0.6, PHP 5, PHP 7) Verifies if a certificate can be used for a particular purpose

(PHP 5 >= 5.3.0, PHP 7) Copy hashing context

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Free key resource

(PHP 4 >= 4.0.2, PHP 5, PHP 7) This function initializes all buffers needed for encryption

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Extract public key from certificate and prepare it for use

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Verify signature