openssl_private_decrypt

(PHP 4 >= 4.0.6, PHP 5)

openssl_private_decryptDecrypts data with private key

Описание

bool openssl_private_decrypt ( string $data , string &$decrypted , mixed $key [, int $padding = OPENSSL_PKCS1_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.

Список параметров

data

decrypted

key

key must be the private key corresponding that was used to encrypt the data.

padding

padding can be one of OPENSSL_PKCS1_PADDING, OPENSSL_SSLV23_PADDING, OPENSSL_PKCS1_OAEP_PADDING, OPENSSL_NO_PADDING.

Возвращаемые значения

Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.

Смотрите также

Коментарии

Encrypt using public key, decrypt using private key.

Use this to store stuff in your database: Unless someone
has your private key, the database contents are useless.

Also, use this for sending to a specific individual:  Get
their public key, encrypt the message, only they can use
their private key to decode it.

<?php
echo "Source: $source";
$fp=fopen("/path/to/certificate.crt","r");
$pub_key=fread($fp,8192);
fclose($fp);
openssl_get_publickey($pub_key);
/*
 * NOTE:  Here you use the $pub_key value (converted, I guess)
 */
openssl_public_encrypt($source,$crypttext,$pub_key);
echo 
"String crypted: $crypttext";

$fp=fopen("/path/to/private.key","r");
$priv_key=fread($fp,8192);
fclose($fp);
// $passphrase is required if your key is encoded (suggested)
$res openssl_get_privatekey($priv_key,$passphrase);
/*
 * NOTE:  Here you use the returned resource value
 */
openssl_private_decrypt($crypttext,$newsource,$res);
echo 
"String decrypt : $newsource";
?>
2002-03-08 17:58:44
http://php5.kiev.ua/manual/ru/function.openssl-private-decrypt.html
of course you have to add the openssl extension to you php environment.
2015-04-08 13:45:14
http://php5.kiev.ua/manual/ru/function.openssl-private-decrypt.html
Автор:
<?php

// Generate keys in console:
// $ openssl genrsa -out private_key 8192
// $ openssl rsa -in private_key -out public_key.pem -pubout -outform PEM

// Test data
$data 'Hello world';

// Encrypt data with public key
$publicKey file_get_contents('public_key.pem');
$encrypted null;

openssl_public_encrypt($data$encrypted$publicKey);

echo 
'Encrypted data'PHP_EOL;
echo 
base64_encode($encrypted), PHP_EOL;

echo 
PHP_EOL;

// Decrypt data with private key
$privateKey file_get_contents('private_key');
$decrypted null;

openssl_private_decrypt($encrypted$decrypted$privateKey);

echo 
'Decrypted data'PHP_EOL;
echo 
$decryptedPHP_EOL;
2021-03-27 04:33:39
http://php5.kiev.ua/manual/ru/function.openssl-private-decrypt.html

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