(PHP 4 >= 4.2.0, PHP 5, PHP 7) Exports a CSR to a file

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Generates a CSR

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

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

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Gets an exportable representation of a key into a string

(PHP 5 >= 5.2.0, PHP 7) Returns an array with the key details

(PHP 5.6, PHP 7) Calculates the fingerprint, or digest, of a given X.509 certificate

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Get a private key

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Sign a CSR with another certificate (or itself) and generate a certificate

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Exports a certificate as a string