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I'm generating a few test keys, but I can't seem to use the %no-protection and %transient-key flags. I get the following message:

$ cat dwight | gpg --homedir "dwight-keys" --gen-key --batch
gpg: keyring `dwight-keys/secring.gpg' created
gpg: keyring `dwight-keys/pubring.gpg' created
gpg: Generating a key for Dwight Schrute
gpg: skipping control `%no-protection' ()
gpg: skipping control `%transient-key' ()

Not enough random bytes available.  Please do some other work to give
the OS a chance to collect more entropy! (Need 27 more bytes)
......+++++

The error message states the %no-protection and %transient-key controls are skipped. This you can see as the key generator is trying to pull the random bytes from /dev/random which if I understand the documentation correctly, %transient-key is supposed to prevent.

This is the config file I am using to generate the key:

%echo Generating a key for Dwight Schrute
%no-protection
%transient-key
Key-Type: RSA
Key-Length: 4096
Subkey-Type: RSA
Subkey-Length: 4096
Name-Real: Dwight Schrute
Name-Email: [email protected]
Creation-Date: 2005-03-24
Expire-Date: 0
%commit
%echo Key generated
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  • 1
    Fun fact, Googling the error message just leads me to the source code of GPG and a single reference to the error message in an old archived 4chan thread.
    – IQAndreas
    Sep 19, 2014 at 5:35

1 Answer 1

3

Judging by looking at the GnuPG source it seems that the %no-protection and %transient-key controls were added in 764e88d4df29204be6ea2206cf753c56ec0f5b5f, which is only on the 2.1 branch, and I'm betting your GnuPG is from the 2.0 branch.

2
  • Even worse, running gpg --version I see I'm using 1.4.16. I assumed the version found in the Ubuntu repositories would be a bit more up to date.
    – IQAndreas
    Sep 20, 2014 at 14:44
  • 1
    Ubuntu has both. gnupg2 for the 2.0 branch, tho you'll probably have to find a PPA for 2.1
    – remmy
    Sep 20, 2014 at 14:51

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