decrypting input, not a file...

Paul Evad
Thu, 18 May 2000 13:03:21 -0700

At 2:26 PM -0500 5/18/00, Frank Tobin wrote:

>Paul Evad, at 19:24 -0700 on Wed, 17 May 2000, wrote:
>> echo '$passphrase' | gpg -v --batch --no-secmem-warning
>> --passphrase-fd 0 --decrypt $file
>> However, in a particular case... I would like to decrypt a 'string'
>> but don't want to necessarily write the 'string' to a file.
>While I think using shell for anything sensitive is ridiculous...this
>might work. I don't recommend passing in passphrases to stdin, however,
>in case you run situations where the passhrase isn't needed, and is
>processed as part of the normal message by GnuPG.
>echo "$passphrase\n$string" | gpg --passphrase-fd 0 --decrypt
>> Please CC me on reply's, I haven't subscribed to the list yet....
>It is advisable for you to subscribe. Lots of goodies for those who do :)
Thanks for the feedback, If anyone is interested... here is the resulting PHP script that will encrypt/decrypt data using this hack.. <pre> <? // exec($command, $encrypted, $errorcode); putenv("HOME=/home/httpd/"); if($tocrypt) { // encrypt and set $code to result. $command="echo '$tocrypt' | gpg -a -q --no-tty -e -u $user -r $user"; // $code = `$command`; // echo "code: $code"; exec($command, $encrypted, $errorcode); // echo "command: $command \n"; while(list($key,$val) = each ($encrypted)) { $code.="$val\n"; } // echo "\n errorcode: $errorcode <br>\n code: $code <br>\n "; // echo "encrypted: " . array_tunnel($encrypted); } if($passphrase && $code) { // decrypt the code... $command="echo '$passphrase\n$code' | gpg -v --batch --no-secmem-warning --passphrase-fd 0 --decrypt"; exec($command, $encrypted, $errorcode); // echo "command: $command \n"; // echo "\n errorcode: $errorcode <br>\n code: $code <br>\n "; // echo "encrypted: " . array_tunnel($encrypted); echo "your secret message was: "; while(list($key,$val) = each ($encrypted)) { echo "$val\n"; } } ?> </pre> <form method=post action=gpgtest.php3> <input type=text name=passphrase> <textarea name="code" rows=10 cols=80><? echo $code ?> </textarea> <input type=submit value=decrypt> </form> </pre> <hr> <pre> <form method=post action=gpgtest.php3> <input type=text name=tocrypt> <input type=submit value=encrypt> </form> </pre> --------------------- Kudosnet Technologies Inc. --------------------- For a copy of our most recent newsletter send a blank email to: ---------------------------- 1-877-885-8367 --------------------------