Length for AES256 symmetric encryption passphrase?

[Sam Gleske]

On Fri, Apr 4, 2014 at 10:46 AM, Sam Gleske <sam.mxracer at gmail.com> wrote:

>
> On Fri, Apr 4, 2014 at 2:04 AM, Robert J. Hansen <rjh at sixdemonbag.org>wrote:
>
>> Using plain English for the passphrase, a 170-character passphrase is
>> necessary to provide a full 256 bits of entropy.
>>
>
> Interesting math.  However, I believe the OP mentioned they're generating
> the password and storing so human readable, i.e. English, isn't an issue.
> What would be the recommended length for completely random characters
> generated, for example, by a password manager such as keepassx?
>

To clarify and be more specific... if one were using the password as the
symmetric key in the GPG software (libcrypt)?  Or perhaps even just using
openssl tools?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: </pipermail/attachments/20140404/bf7771bb/attachment.html>