Re: Purpose of waitseconds option to aespipe

[Jari Ruusu <jariruusu@xxxxxxxxxxxxxxxxxxxxx>]

Phil H wrote:
> What is the purpose of the waitseconds (-w) option to
> aespipe?

Purpose is to wait before asking passphrase.

For example, if you were to decrypt something already encrypted, and then
re-encrypt it again with different key file or passphrase, you can use two
aespipe processes like this:

  ... | aespipe -d | aespipe | ...

In above case, both aespipe processes end up asking for passphrase
simultaneously. But how do you know which aespipe process gets first
passphrase? You don't. This works more consistently:

  ... | aespipe -d | aespipe -w 60 | ...
                             ^^^^^

aespipe README example 3 attempts to prevent aespipe password prompt from
getting lost in mkisofs output noise by using -w option like this:

  mkisofs -r directory-tree | aespipe -w 10 -K image.iso -O 16 >>image.iso
                                      ^^^^^
But that doesn't always work. It is better to just tell mkisofs to just shut
up. Like this:

  mkisofs -quiet -r directory-tree | aespipe -K image.iso -O 16 >>image.iso
          ^^^^^^
-- 
Jari Ruusu  1024R/3A220F51 5B 4B F9 BB D3 3F 52 E9  DB 1D EB E3 24 0E A9 DD

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