https://github.com/stef/opaque-store
simple opaque based online store of small blobs
https://github.com/stef/opaque-store
Last synced: about 1 year ago
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simple opaque based online store of small blobs
- Host: GitHub
- URL: https://github.com/stef/opaque-store
- Owner: stef
- License: gpl-3.0
- Created: 2023-03-12T01:34:26.000Z (over 3 years ago)
- Default Branch: master
- Last Pushed: 2025-03-31T23:50:16.000Z (about 1 year ago)
- Last Synced: 2025-04-16T00:08:54.383Z (about 1 year ago)
- Language: Zig
- Size: 144 KB
- Stars: 6
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# OPAQUE-Store
OPAQUE-Store is a simple protocol that allows anyone to store
encrypted blobs of information online, with only a password needed to
retrieve the information. As the name implies it uses the OPAQUE
protocol to do so. OPAQUE-Store uses the `export_key` feature of
OPAQUE to encrypt the data that is stored on the OPAQUE-Storage
server.
You might want to read this blog-post on this topic and on more info:
`https://www.ctrlc.hu/~stef/blog/posts/How_to_recover_static_secrets_using_OPAQUE.html`
OPAQUE-Store goes beyond the original OPAQUE protocol as specified by
the IRTF/CFRG and also supports a threshold variant of OPAQUE. In a
threshold setup you have a number N of servers that all hold a share
of your secret and at least a threshold number T of these need to
cooperate to recover the secret. This provides extra robustness and
dillution of responsibility (losing a server is not the end of the
world!) while at the same time increases security, as an attacker now
has to compromise at least T servers to get access to some
information.
This project is funded through [NGI0 Entrust](https://nlnet.nl/entrust), a fund
established by [NLnet](https://nlnet.nl) with financial support from the
European Commission's [Next Generation Internet](https://ngi.eu) program. Learn
more at the [NLnet project page](https://nlnet.nl/project/ThresholdOPRF).
This project was funded through the e-Commons Fund, a fund established by NLnet
with financial support from the Netherlands Ministry of the Interior and
Kingdom Relations.
[
](https://nlnet.nl)
[
](https://nlnet.nl/entrust)
[
](https://www.rijksoverheid.nl/ministeries/ministerie-van-binnenlandse-zaken-en-koninkrijksrelaties)