Creating a quickly expiring signature

2011-07-28 Thread Dan McGee
I wanted to test behavior of an application with an expired signature,
but using `--ask-sig-expire` don't seem to be granular enough. The
minimum I can specify is either 1 day, or an absolute date (e.g.
2011-07-29), which is still 8+ hours away for me right now. Am I
missing something? Decimal values are not accepted, nor seconds,
minutes, or hours.

-Dan

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Re: Creating a quickly expiring signature

2011-07-28 Thread David Shaw
On Jul 28, 2011, at 4:49 PM, Dan McGee wrote:

 I wanted to test behavior of an application with an expired signature,
 but using `--ask-sig-expire` don't seem to be granular enough. The
 minimum I can specify is either 1 day, or an absolute date (e.g.
 2011-07-29), which is still 8+ hours away for me right now. Am I
 missing something? Decimal values are not accepted, nor seconds,
 minutes, or hours.

When GPG asks you for the value, enter seconds=X.  You can go down to as low 
as a single second.

David


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Re: Creating a quickly expiring signature

2011-07-28 Thread Robert J. Hansen
On 7/28/11 4:49 PM, Dan McGee wrote:
 I wanted to test behavior of an application with an expired signature,
 but using `--ask-sig-expire` don't seem to be granular enough.

Set your system clock back a year, create a sig that expires in a year,
reset your system to the normal time.  The simplest solution is usually
best.


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Re: Creating a quickly expiring signature

2011-07-28 Thread Dan McGee
On Thu, Jul 28, 2011 at 5:04 PM, David Shaw ds...@jabberwocky.com wrote:
 On Jul 28, 2011, at 4:49 PM, Dan McGee wrote:

 I wanted to test behavior of an application with an expired signature,
 but using `--ask-sig-expire` don't seem to be granular enough. The
 minimum I can specify is either 1 day, or an absolute date (e.g.
 2011-07-29), which is still 8+ hours away for me right now. Am I
 missing something? Decimal values are not accepted, nor seconds,
 minutes, or hours.

 When GPG asks you for the value, enter seconds=X.  You can go down to as 
 low as a single second.

Thanks! This worked. Now why isn't this documented anywhere to be
found? What other secret helpful options does gpg not advertise?

@Robert: while I appreciate your suggestion, I do not find setting my
system clock (controlled by NTP) to an invalid time to be even
remarkably a valid solution to this problem, especially if I am
writing an automated test suite that generates signatures and keys,
for example...

-Dan

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