openssl_private_decrypt
(PHP 4 >= 4.0.6, PHP 5)
openssl_private_decrypt — Decrypts data with private key
说明
$data
, string &$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.
参数
-
data -
-
decrypted -
-
key -
keymust be the private key corresponding that was used to encrypt the data. -
padding -
paddingcan be one ofOPENSSL_PKCS1_PADDING,OPENSSL_SSLV23_PADDING,OPENSSL_PKCS1_OAEP_PADDING,OPENSSL_NO_PADDING.
返回值
成功时返回 TRUE ， 或者在失败时返回 FALSE 。
参见
- openssl_public_encrypt() - Encrypts data with public key
- openssl_public_decrypt() - Decrypts data with public key
用户评论:
[#1] tjusongchao at gmail dot com [2015-04-08 10:45:14]
of course you have to add the openssl extension to you php environment.
[#2] wfredkNOSPAM at L5DevelopmentNOSPAM dot com [2002-03-08 15:58:44]
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);
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,$passphrase);
openssl_private_decrypt($crypttext,$newsource,$res);
echo "String decrypt : $newsource";
?>