Symmetric encryption

[Gordon Worley]

When I symmetrically encrypt a file, I have a few questions about what 
is generated:

- Where is the key stored?
- Is the passphrase used to protect a key?  Is the passphrase the key?
- How is the output formatted?  Can a program other than GnuPG decrypt 
it?

--
Gordon Worley                     `When I use a word,' Humpty Dumpty
http://www.rbisland.cx/            said, `it means just what I choose
redbird at rbisland.cx                it to mean--neither more nor less.'
PGP:  0xBBD3B003                                  --Lewis Carroll