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openssl_open

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

openssl_openOpen sealed data

Description

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.

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Parameters

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.

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Return Values

Returns TRUE on success or FALSE on failure.

PHP: openssl_open - Manual Home of Manuel PHP  Contents Haut

Changelog

Version Description
7.0.0 The iv has been added.
5.3.0 The method has been added.

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Examples

Example #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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Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-function.openssl-open.html

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References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

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