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openssl_public_decrypt openssl_private_decrypt

Last updated: Fri, 26 Jan 2007

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# openssl_private_encrypt

(PHP 4 >= 4.0.6, PHP 5)

openssl_private_encrypt -- Encrypts data with private key

## Description

bool openssl_private_encrypt ( string data, string &crypted, mixed key [, int padding] )

openssl_private_encrypt() encrypts `data` with private `key` and stores the result into `crypted`. Encrypted data can be decrypted via openssl_public_decrypt(). `padding` defaults to `OPENSSL_PKCS1_PADDING`, but can also be `OPENSSL_NO_PADDING`.

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

This function can be used e.g. to sign data (or its hash) to prove that it is not written by someone else.

See also openssl_public_decrypt() and openssl_public_encrypt().

add a note User Contributed Notes
openssl_private_encrypt
wfredkNOSPAM at L5DevelopmentNOSPAM dot com
08-Mar-2002 03:50
`Encrypt using private key, decrypt using public key.
Use this for posting signed messages: Anyone with access to
your public key can read it, but they can't create one with
your signature.
<?php
echo "Source: $source";
$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,$passphrase);
/*
* NOTE: Here you use the returned resource value
*/
openssl_private_encrypt($source,$crypttext,$res);
echo "String crypted: $crypttext";
$fp=fopen ("/path/to/certificate.crt","r");
$pub_key=fread($fp,8192);
fclose($fp);
openssl_get_publickey($pub_key);
/*
* NOTE: Here you use the $pub_key value (converted, I guess)
*/
openssl_public_decrypt($crypttext,$newsource,$pub_key);
echo "String decrypt : $newsource";
?>`
billnet at tiscalinet dot it
28-Jan-2002 10:47
`<?php
$fp=fopen ("/path/to/key.pem","r");
$priv_key=fread ($fp,8192);
fclose($fp);
openssl_get_privatekey ($priv_key);
openssl_private_encrypt($source,$finaltext,$priv_key);
echo "String crypted: $finaltext";
?>
CIAO !`
add a note
openssl_public_decrypt openssl_private_decrypt

Last updated: Fri, 26 Jan 2007
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