openssl_public_decrypt

 bool openssl_public_decrypt ( string $data , string &$decrypted , mixed $key [, int $padding = OPENSSL_PKCS1_PADDING ] ) 

説明

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.

戻り値

Returns TRUE on success or FALSE on failure.