(PHP 5 >= 5.2.2, PHP 7) Exports a PKCS#12 Compatible Certificate Store File to variable.

(PHP 4, PHP 5, PHP 7) Gets the block size of the specified hash

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

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

(PHP 4 >= 4.0.6, PHP 5, PHP 7) Parse an X509 certificate and return the information as an array

(PHP 4 >= 4.0.6, PHP 5, PHP 7) Return openSSL error message

(PHP 5 >= 5.5.0, PHP 7) Checks if the given hash matches the given options

(PHP 4 >= 4.0.6, PHP 5, PHP 7) Encrypt an S/MIME message

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

(PHP 5 >= 5.2.2, PHP 7) Exports a PKCS#12 Compatible Certificate Store File