Decrypts data with public key openssl_private_encrypt openssl_public_encrypt OpenSSL Functions PHP Manual openssl_public_decrypt (PHP 4 >= 4.0.6, PHP 5)openssl_public_decrypt — Decrypts data with public key Description bool openssl_public_decrypt ( string $data , string &$decrypted , mixed $key [, int $padding ] ) openssl_public_decrypt() decrypts data that was previous encrypted via openssl_private_encrypt() and stores the result into decrypted . You can use this function e.g. to check if the message was written by the owner of the private key. Parameters data decrypted key key must be the public key corresponding that was used to encrypt the data. padding padding defaults to OPENSSL_PKCS1_PADDING, but can also be OPENSSL_NO_PADDING. Return Values Returns TRUE on success or FALSE on failure. See Also openssl_private_encrypt() openssl_private_decrypt() openssl_private_encrypt openssl_public_encrypt OpenSSL Functions PHP Manual