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(PECL gnupg >= 0.1)
gnupg_sign — Signs a given text
$identifier
, string $plaintext
)
Signs the given plaintext
with the keys, which were
set with gnupg_addsignkey before and
returns the signed text or the signature, depending on what was set with
gnupg_setsignmode.
identifier
gnupg 标识符,由对 gnupg_init() 或 gnupg 的调用生成。
plaintext
The plain text being signed.
On success, this function returns the signed text or the signature.
On failure, this function returns FALSE
.
Example #1 Procedural gnupg_sign() example
<?php
$res = gnupg_init ();
gnupg_addsignkey ( $res , "8660281B6051D071D94B5B230549F9DC851566DC" , "test" );
$signed = gnupg_sign ( $res , "just a test" );
echo $signed ;
?>
Example #2 OO gnupg_sign() example
<?php
$gpg = new gnupg ();
$gpg -> addsignkey ( "8660281B6051D071D94B5B230549F9DC851566DC" , "test" );
$signed = $gpg -> sign ( "just a test" );
echo $signed ;
?>
[#1] phplist2REMOVE AT REMtincanOVE.co.uk [2006-11-08 15:42:59]
It's a bit confusing how the "keyinfo" for a key returns "can_sign".
If you have only added your Public Key, it will indicate "can_sign" for the key in "keyinfo", but that doesn't mean yet, that you can sign with the key. You will also need to add your Private Key to actually make signing work.