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# checkpw - Check passwords agains pwnedpaswords.com
A simple tool to check passwords against the database at [pwnedpasswords.com] using the [k-anonymity] protocol.
The password entered is hashed, and only a small part of hash (five digits) is sent to the server. This ensures that neither the server, nor any man-in-the-middle can know the exact password you submit.
## Building the code
You need to have Rust and Cargo installed on your system. Then simply run:
% cargo build --release
To build the release build. You'll find the resulting binary in `target/release/checkpw`.
The main repository if the code is at https://code.volse.no/checkpw.git.
I'm happy to take patches either by email or a remote branch I can get access to. I'm also available as `@email@example.com` on the social web (Mastodon/Hubzilla/Diaspora etc.)
Copyright (C) 2018 [Harald Eilertsen](firstname.lastname@example.org)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see https://www.gnu.org/licenses/.