cannot pass in input and passphrase at the same time in batch mode?

[Steven W. Orr]

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On 06/22/09 22:25, quoth Joe Korn:
> Hi Harry,
> 
> We ran into the same problem and the only way we were able to get around it
> was by storing the pass phrase in a file and using the TYPE command instead
> of the echo.  Curious to see if anyone else found a better solution
> 
> Regards,
> 
> Joe K

I'm gonna go out on a limb here and suggest that gpg is not going to look for
a passphrase from stdin. Instead it's going to look for input from /dev/tty.
IF I'm right (and I'm just guessing here) then the only way to get what you're
trying to do is to write your program in expect.

Expect: The program for people who have to be running from a console.

> 
> On Thu, Jun 18, 2009 at 8:41 PM, Harry<lufei at yahoo.com> wrote:
>> Hello guys,
>> 
>> I ran into a problem when using gpg to sign and encrypt. I have a test
>> run below (in bash):
>> 
>> $echo abcd | gpg -u bob at xyz.com --output message.pgp -r alice at 123.com -se
>> --passphrase-fd 0 << EOF <123456 <EOF
>> 
>> There is no error but after decrypt message.pgp, the file content is
>> empty. In above run, "abcd" is the input plain text to be encrypted,
>> 123456 is the passphrase for bob at xyz.com's private key that is used for
>> signing the file.
>> 
>> My requirements are "abcd" can not be saved in a file, it has to be sent
>> to gpg as stdin. So is the passphrase, it can not be saved in a file too.
>> 
>> 
>> It looks like when input and passphrase are all passed in as stdin, gpg
>> only takes passphrase and consider input text as empty, which result into
>> an empty encrypt file.
>> 
>> Is there anyway to solve this?
>> 
>> I tried
>> 
>> $echo abcd | gpg -u bob at xyz.com --batch --output message.pgp -r
>> alice at 123.com -se --passphrase "123456"
>> 
>> but gpg gave error like: gpg: skipped `bob at xyz.com': bad passphrase gpg:
>> [stdin]: sign+encrypt failed: bad passphrase
>> 
>> Thanks!

- --
Time flies like the wind. Fruit flies like a banana. Stranger things have  .0.
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Donor?Black holes are where God divided by zero. Listen to me! We are all- 000
individuals! What if this weren't a hypothetical question?
steveo at syslang.net
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