Data not decrypting

[Steve Butler]

I think you are missing the file handle number needed for the passphrase FD.
I would also put the --output before the --decrypt (just a peculiarity that
I ran into several months ago).  Try it this way:

gpg --passphrase-fd 0 --output input.txt --decyrpt input.pgp <
passphrase.txt 2> log_decrypt.txt



-----Original Message-----
From: Ediprogrammer@aol.com [mailto:Ediprogrammer@aol.com]
Sent: Friday, August 01, 2003 9:23 AM
To: gnupg-users@gnupg.org
Subject: Data not decrypting


Hi, 

I'm a newbie, both to gnupg and to cryptography concepts in general, and the
problem I'm having is: when I decrypt a file the output is completely
unreadable, it looks like the file is still encrypted! 

My situation is this: I created and exported my gnupg key pair using the
WinPT interface (gnupg version 1.2.1). I emailed my public key to the person
who will be sending me encrypted files. This person encrypted a file using
my public key (she is using PGP version 7.0.4). She emailed me the encrypted
file. I wrote a .bat file containing the following decrypt statement:

gpg --passphrase-fd --decrypt --output input.txt input.pgp < passphrase.txt
2> log_decrypt.txt

I ran the .bat file and got the following messages in my log file:

gpg: encrypted with ELG-E key, ID uniqueid#1
gpg: encrypted with ELG-E key, ID uniqueid#2
gpg: encrypted with 1792-bit ELG-E key, ID uniqueid#3, created 2003-06-24
      "my name here <my email address here>"
gpg: WARNING: message was not integrity protected

(1) from reading this list serv I believe the WARNING message is because
gnupg is expecting MDC to be used but PGP is not using MDC. It is my
understanding this warning message shouldn't affect the outcome of the
actual decryption. In fact, to get rid of the warning message I added
"--no-mdc-warning" which did, indeed, get rid of the warning.

(2) what do the three "gpg: encryped with..." messages mean?

(3) when I looked at my output file (input.txt), it was all garbage
characters, it still looks encrypted!

Thanks for any light you'all can shed on the subject.

~~
 



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