gnupg_verify

(PECL gnupg >= 0.1)

gnupg_verifyVerifies a signed text

Description

array gnupg_verify ( resource $identifier , string $signed_text , string $signature [, string &$plaintext ] )

Verifies the given signed_text and returns information about the signature.

Parameters

identifier

The gnupg identifier, from a call to gnupg_init() or gnupg.

signed_text

The signed text.

signature

The signature. To verify a clearsigned text, set signature to FALSE.

plaintext

The plain text. If this optional parameter is passed, it is filled with the plain text.

Return Values

On success, this function returns information about the signature. On failure, this function returns FALSE.

Examples

Example #1 Procedural gnupg_verify() example

<?php
$plaintext 
"";
$res gnupg_init();
// clearsigned
$info gnupg_verify($res,$signed_text,false,$plaintext);
print_r($info);
// detached signature
$info gnupg_verify($res,$signed_text,$signature);
print_r($info);
?>

Example #2 OO gnupg_verify() example

<?php
$plaintext 
"";
$gpg = new gnupg();
// clearsigned
$info $gpg -> verify($signed_text,false,$plaintext);
print_r($info);
// detached signature
$info $gpg -> verify($signed_text,$signature);
print_r($info);
?>

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User Contributed Notes 1 note

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1
kae at verens dot com
6 years ago
You can see who made the signature by checking its fingerprint:

<?php
$res
= gnupg_init();
$info = gnupg_verify($res,$signed_text,$signature);
if(
$info !== false){
 
$fingerprint = $info['fingerprint'];
 
var_dump(gnupg_keyinfo($res, $fingerprint));
}
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