gnupg_decrypt

(PECL gnupg >= 0.1)

gnupg_decrypt — Decrypts a given text

说明

gnupg_decrypt(resource $identifier, string $text): string

Decrypts the given text with the keys, which were set with gnupg_adddecryptkey before.

参数

identifier: gnupg 标识符，由对 gnupg_init() 或 gnupg 的调用生成。
text: The text being decrypted.

返回值

On success, this function returns the decrypted text. On failure, this function returns false.

范例

示例 #1 Procedural gnupg_decrypt() example


<?php
$res = gnupg_init();
gnupg_adddecryptkey($res,"8660281B6051D071D94B5B230549F9DC851566DC","test");
$plain = gnupg_decrypt($res,$encrypted_text);
echo $plain;
?>

示例 #2 OO gnupg_decrypt() example


<?php
$gpg = new gnupg();
$gpg->adddecryptkey("8660281B6051D071D94B5B230549F9DC851566DC","test");
$plain = $gpg->decrypt($encrypted_text);
echo $plain;
?>

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User Contributed Notes 5 notes

down

aidukas at gmail dot com ¶

8 years ago


If empty text is encrypted, the gnupg_decrypt() function will return a boolean FALSE so if you do a strict comparison (===, !==) to track a failure it will trigger you a failure.
For failures use Exceptions:
<?php
        $gpg = new gnupg();
        $gpg->seterrormode(gnupg::ERROR_EXCEPTION);
        /*
         .......further code.......
       */
        try {
            $string = $gpg->decrypt($stringToDecrypt);
        } catch (Exception $e) {
         // do the Error processing
        }

?>

down

Mike ¶

12 years ago


As of gnupg version 2, it is not possible to pass a plain password any more. The parameter is simply ignored. Instead, a pinentry application will be launched in case of php running in cli mode. In cgi or apache mode, opening the key will fail.
The simplest solution is to use keys without passwords.

down

yougot at haxed dot com ¶

5 years ago


In regards to Mike's comments around passphrases not working correctly in v2, that's not entirely correct. If you want a PHP file to run without having to manually enter in your PGP passphrase you have to follow the steps outlined @ https://wiki.archlinux.org/index.php/GnuPG#Unattended_passphrase

Hope it helps.

down

bobby545 at op dot pl ¶

3 years ago


there is mistake in  description of object way, it said it is gnu_encrypt example not decrypt

down

Terra ¶

4 years ago


An update in regards to comments from 'yougot' and 'Mike'.

I have just submitted a pull request that should fix the 'passphrase' issue where the internal callback wasn't being called thereby triggering pinentry.

The pull request is at:  https://github.com/php-gnupg/php-gnupg/pull/15

This fix will also work for the current 1.4.0 release:  https://github.com/TerraTech/php-gnupg/tree/fix_adddecryptkey_passphrase-1.4.0

Hope that helps.

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官方地址：https://www.php.net/manual/en/function.gnupg-decrypt.php

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gnupg_decrypt

说明

参数

返回值

范例

User Contributed Notes 5 notes