Public algos list

[Fabio Coatti]

Hi all,
I just spotted this asking for gnupg version:

==========
gpg (GnuPG) 2.0.22
libgcrypt 1.5.3
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Home: ~/.gnupg
Supported algorithms:
Pubkey: RSA, ELG, DSA, ?, ?
Cipher: IDEA, 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH,
        CAMELLIA128, CAMELLIA192, CAMELLIA256
Hash: MD5, SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224
Compression: Uncompressed, ZIP, ZLIB, BZIP2
==========

The part that I don't understand is the two question marks in pubkey
algos. Pubkey: RSA, ELG, DSA, ?, ?

Can someone point me to some documentation about this or give me an hint?
I'm sure I missed something, but I read documentation and googled
without success... and I'd like to know what thos question marks
stands for .

Sorry for the very likely stupid question and thanks for any hint :)






-- 
Fabio