If I run the command 'gpg -a -e < input.txt > output.txt' with completely different inputs (e.g. from /dev/urandom), the first 19 characters are always the same. What is this header? Is it identifying in any way?
For example:
-----BEGIN PGP MESSAGE-----
Version: GnuPG v1.4.11 (GNU/Linux)
hQEMA5QidX3vO49mAQf/dZzGGqfxC/7T7sOM+ome1i7Cwd1e2dOiTvRIA2LYZXpi
and
-----BEGIN PGP MESSAGE-----
Version: GnuPG v1.4.11 (GNU/Linux)
hQEMA5QidX3vO49mAQgAkz+xM9ojPvOBUtDRvCecr344PJbmbaMFxJrpJBICnywE