php man page for openssl_open

OPENSSL_OPEN(3) 							 1							   OPENSSL_OPEN(3)

openssl_open - Open sealed data

SYNOPSIS
       bool openssl_open (string  $sealed_data, string	&$open_data, string  $env_key, mixed  $priv_key_id, [string  $method])

DESCRIPTION
       openssl_open(3)	opens  (decrypts)  $sealed_data using the private key associated with the key identifier $priv_key_id and the envelope key
       $env_key, and fills $open_data with the decrypted data. The envelope key is generated when the data are sealed and can only be used by  one
       specific private key. See openssl_seal(3) for more information.

PARAMETERS
	      o $sealed_data
		-

	      o $open_data
		- If the call is successful the opened data is returned in this parameter.

	      o $env_key
		-

	      o $priv_key_id
		-

RETURN VALUES
	Returns TRUE on success or FALSE on failure.

EXAMPLES
       Example #1

	      openssl_open(3) example

	      <?php
	      // $sealed and $env_key are assumed to contain the sealed data
	      // and our envelope key, both given to us by the sealer.

	      // fetch private key from file and ready it
	      $fp = fopen("/src/openssl-0.9.6/demos/sign/key.pem", "r");
	      $priv_key = fread($fp, 8192);
	      fclose($fp);
	      $pkeyid = openssl_get_privatekey($priv_key);

	      // decrypt the data and store it in $open
	      if (openssl_open($sealed, $open, $env_key, $pkeyid)) {
		  echo "here is the opened data: ", $open;
	      } else {
		  echo "failed to open data";
	      }

	      // free the private key from memory
	      openssl_free_key($pkeyid);
	      ?>

SEE ALSO
       openssl_seal(3).

PHP Documentation Group 													   OPENSSL_OPEN(3)