Adding keys

Madhusudan Singh singh.madhusudan at
Wed Sep 22 01:51:27 CEST 2010


Due to many reasons, I was unable to attempt a backup to my S3 account.
Today, with the copied key, the backup failed:

Error accessing possibly locked file /Users/sm123/Private/.Trashes
GPGError: GPG Failed, see log below:
===== Begin GnuPG log =====
gpg: 81670CBA: There is no assurance this key belongs to the named user
gpg: [stdin]: sign+encrypt failed: unusable public key
===== End GnuPG log =====

I have tried to edit the key and given it a trust level of 5. No use. How do
I fix this ?

On Wed, Aug 18, 2010 at 10:09 AM, Madhusudan Singh <
singh.madhusudan at> wrote:

> Hello,
> I am new to using GPG. I have consulted the manuals and help online, but I
> am not sure it addresses my concern. I am trying to use this on Mac OSX Snow
> Leopard (so using MacGPG is apparently out of the question).
> Here is the situation:
> On Machine A (that I no longer have), I created a GPG key with email
> address A. Before I got rid of the machine, I backed up everything to disk
> (so I have the .gnupg folder and when I try using the keys within with
> certain scripts (using pathnames), the key works (it authenticates me to my
> Amazon S3 backup).
> On Machine B (that I am currently using), I created another GPG key with a
> different email address (B). I am using that key to make encrypted duplicity
> backups to a local Linux server (which is different from Amazon S3 - I am a
> fan of redundant, geographically diverse backups). This key appears in the
> output of gpg --list-keys (while the other one, for obvious reasons, does
> not).
> I want to merge the two keys in some way so that I get both keys listed.
> Importing a public key appears to be standard procedure. But what I need is
> access to the secret key for both keys so that I can make both the Amazon S3
> and local Linux server backups without being forced to pass paths to certain
> scripts.
> Questions:
> 1. Is my question even well-posed ?
> 2. Is this kind of thing even possible ?
> 3. How do I do it ?
> Thanks.
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