(PHP 4 >= 4.2.0, PHP 5, PHP 7) Generates a new private key
(PHP 4 >= 4.0.6, PHP 5, PHP 7) Parse an X.509 certificate and return a resource identifier for it
(PHP 4 >= 4.0.4, PHP 5, PHP 7) Alias of
(PHP 5 >= 5.3.0, PHP 7) Decrypts data string
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