How much information can be gleaned about a gpg key by possessing both plaintext and ciphertext?

[Martin Behrendt]

Am 21.11.2014 um 10:57 schrieb Schlacta, Christ:
> I know some encryption schemes reveal more information about the keys used
> when an attacker has both the plaintext and the ciphertext.  In general,
> how much information does GPG reveal in such situations?

Short answer: Thats no problem.
google e.g.: "plain text attacks on gnupg site:gnupg.org"

Greetings
Martin