Decrypts data with private key openssl_pkey_new openssl_private_encrypt OpenSSL Functions PHP Manual openssl_private_decrypt (PHP 4 >= 4.0.6, PHP 5)openssl_private_decrypt — Decrypts data with private key Description bool openssl_private_decrypt ( string $data , string &$decrypted , mixed $key [, int $padding ] ) openssl_private_decrypt() decrypts data that was previous encrypted via openssl_public_encrypt() and stores the result into decrypted . You can use this function e.g. to decrypt data which were supposed only to you. Parameters data decrypted key key must be the private key corresponding that was used to encrypt the data. padding padding defaults to OPENSSL_PKCS1_PADDING, but can also be one of OPENSSL_SSLV23_PADDING, OPENSSL_PKCS1_OAEP_PADDING, OPENSSL_NO_PADDING. Return Values Returns TRUE on success or FALSE on failure. See Also openssl_public_encrypt() openssl_public_decrypt() openssl_pkey_new openssl_private_encrypt OpenSSL Functions PHP Manual