openssl_open

(PHP 4 >= 4.0.4, PHP 5, PHP 7)

openssl_openOpen sealed data

Descrição

openssl_open ( string $sealed_data , string &$open_data , string $env_key , mixed $priv_key_id [, string $method = "RC4" [, string $iv ]] ) : bool

openssl_open() 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() for more information.

Parâmetros

sealed_data

open_data

If the call is successful the opened data is returned in this parameter.

env_key

priv_key_id

method

The cipher method.

iv

The initialization vector.

Valor Retornado

Retorna TRUE em caso de sucesso ou FALSE em caso de falha.

Changelog

Versão Descrição
7.0.0 The iv has been added.
5.3.0 The method has been added.

Exemplos

Exemplo #1 openssl_open() 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");
$priv_key fread($fp8192);
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);
?>

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