Path: news.eternal-september.org!eternal-september.org!feeder3.eternal-september.org!newsfeed.bofh.team!paganini.bofh.team!not-for-mail
From: Stefan Claas <fgrsna.pynnf@vagrearg.eh>
Newsgroups: sci.crypt,alt.cypherpunks
Subject: [dpass] - passcodes instead of passwords for symmetric encryption
Date: Sun, 23 Feb 2025 11:02:19 +0100
Organization: To protect and to server
Message-ID: <vpernd$2spih$3@paganini.bofh.team>
Mime-Version: 1.0
Injection-Date: Sun, 23 Feb 2025 10:02:21 -0000 (UTC)
Injection-Info: paganini.bofh.team; logging-data="3040849"; posting-host="LTHUuP1NOUsYYOewAkOEEQ.user.paganini.bofh.team"; mail-complaints-to="usenet@bofh.team"; posting-account="9dIQLXBM7WM9KzA+yjdR4A";
User-Agent: flnews/1.3.0pre29 (for GNU/Linux)
Cancel-Lock: sha1:tPoh0V80JbGK7Y2PhpLJHyhFm6k=
X-Ed25519-Sig: 6f62a83fa931558610c3bafbd255ecf93f4619783f207b88f8f269f58c31b9c4
 187d181a979956c8c140f98baaa9b0872ac40d5f98fae5f3b235adfb1438890c
X-Ed25519-Pub: c0ffee5a36e581eb10f60b2831b3cdb955d2e7ef680dd282a8d43ad8b84b357a
X-Date: It's Sun Sep 11499 11:02:22 AM CET 1993, the September that never ends.
X-Notice: Filtered by postfilter v. 0.9.3

Hi all,

while playing with TOTP https://github.com/706f6c6c7578/TOTP I thought
it may be useful to have an option to generate deterministic passcoded,
valid for 24 hrs, instead of using passwords, for symmetric encryption.

$ dpass -h
Usage: dpass [options]

Options:
  -p string
        Shared password for deterministic passcode generation
  -s string
        Shared salt for deterministic passcode generation
  -l int
        Length of the generated passcode (Default 16)
  -h
        Show this help message and exit

$ dpass
Enter the shared password: test
Enter the shared salt: test
Passcode (16 characters): 4PFVCHS4DMZTPAZG
Valid from 2025-02-23 00:00:00 UTC to 2025-02-23 23:59:59 UTC.

What do you think about using passcodes for symmetric encryption?

Regards
Stefan

-- 
Onion Courier Home Server Mon-Fri 15:00-21:00 UTC Sat-Sun 11:00-21:00 UTC
ohpmsq5ypuw5nagt2jidfyq72jvgw3fdvq37txhnm5rfbhwuosftzuyd.onion:8080 inbox
 age1yubikey1qv5z678j0apqhd4ng7p22g4da8vxy3q5uvthg6su76yj0y8v7wp5kvhstum