OpenSK VS nrf52-u2f

Compare OpenSK vs nrf52-u2f and see what are their differences.

OpenSK

OpenSK is an open-source implementation for security keys written in Rust that supports both FIDO U2F and FIDO2 standards. (by google)

nrf52-u2f

An Open-Source FIDO U2F implementation on nRF52 SoC (by makerdiary)
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OpenSK nrf52-u2f
12 2
2,984 181
0.4% 1.7%
5.4 0.0
11 days ago about 5 years ago
Rust C
Apache License 2.0 MIT License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

OpenSK

Posts with mentions or reviews of OpenSK. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-04-19.
  • OpenSK – open-source implementation for security keys written in Rust
    1 project | news.ycombinator.com | 25 Aug 2023
  • Yubico is merging with ACQ Bure and intends to go public
    6 projects | news.ycombinator.com | 19 Apr 2023
    https://github.com/google/OpenSK works, it runs on something like this $15 board. Could do with a case though.

    https://www.nordicsemi.com/About-us/BuyOnline?search_token=n...

  • How to Yubikey: A Configuration Cheatsheet
    13 projects | news.ycombinator.com | 10 Mar 2023
  • Make Custom Yubikey
    2 projects | /r/yubikey | 23 Jun 2022
  • WebAuthn, and Only WebAuthn
    2 projects | news.ycombinator.com | 24 May 2022
    There are a huge number of other vendors supporting Webauthn apart from Yubikey. (From the top of my head Nitrokey, Solo, Tomu, Mooltipass, Ledger, Trezor, Google Titan, OnlyKey, Token2).

    You could also use the system TPM (https://github.com/psanford/tpm-fido).

    A brief search didn't yield any FIDO2 software-only solutions for Linux, but I see no reason why in principle you couldn't implement it (perhaps interfacing https://github.com/google/OpenSK through hidg - similar projects do exist for U2F).

  • Apple, Google, and Microsoft commit to expanded support for FIDO standard
    6 projects | news.ycombinator.com | 10 May 2022
    Cloudflare does, using a security key not found in the FIDO Metadata Service will unfortunately not work. This precludes the use of any hacker-friendly solution (making your own).

    > Supported: All security keys found in the FIDO Metadata Service 3.0, unless they have been revoked for security reasons.

    https://support.cloudflare.com/hc/en-us/articles/44068890480...

    Attestation keys, as they're currently used, aren't very "privacy friendly" and it's much worse for those who wish to create their own key.

    > Usually, the attestation private key is shared between a batch of at least 100,000 security keys of the same model. If you build your own OpenSK, your private key is unique to you. This makes you identifiable across registrations: Two websites could collaborate to track if registrations were attested with the same key material. If you use OpenSK beyond experimentation, please consider carefully if you want to take this privacy risk.

    https://github.com/google/OpenSK/blob/f2496a8e6d71a4e8388849...

  • Phone May Soon Replace Many of Your Passwords
    4 projects | news.ycombinator.com | 7 May 2022
    There are a number of FOSS solutions.

    - https://github.com/google/OpenSK <- DIY solution

    - https://solokeys.com/

    - https://www.nitrokey.com/

    The issue with any FOSS solution is that FIDO requires an attestation private key which is shared between a batch of at least 100,000 security keys. Using a DIY or cli app (application running on the host) solution will likely mean you'll be generating that private key yourself, this makes you identifiable across registrations.

  • Apple/Google/Microsoft to accelerate rollout of passwordless sign‑in standard
    9 projects | news.ycombinator.com | 5 May 2022
  • Login with a Public Ed25519 Key
    5 projects | news.ycombinator.com | 26 Feb 2022
    I'm not sure what you're replying to--this scheme is much closer to self-signed X509 client certs, not FIDO. But regarding FIDO, it does not prevent user-controlled hardware; it's up to RPs to choose if they require specific device manufacturers or not.

    In my experience, the vast majority of (consumer) RPs do not require specific batch attestation, which is why you can make your own FIDO key: https://github.com/google/OpenSK.

    I am under the impression support for attestation was controversial in FIDO--it's clearly useful for enterprise scenarios (e.g. where an enterprise requires some silly certification like FIPS: https://support.yubico.com/hc/en-us/articles/360016614760-Ac...), but there's always the risk that consumer-facing RPs require it for no good reason.

    My employer requires FIPS certification due to FedRAMP; I'd be interested in how you would propose to change FIDO such that--as now--I can use a single key for work and for all my consumer needs while eliminating attestation.

  • I read the federal government’s Zero-Trust Memo so you don’t have to
    3 projects | news.ycombinator.com | 27 Jan 2022

nrf52-u2f

Posts with mentions or reviews of nrf52-u2f. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-04-01.

What are some alternatives?

When comparing OpenSK and nrf52-u2f you can also consider the following projects:

keyberon - A rust crate to create a pure rust keyboard firmware.

solo1 - Solo 1 firmware in C

rust-u2f - U2F security token emulator written in Rust

libfido2 - Provides library functionality for FIDO2, including communication with a device over USB or NFC.

smoltcp - a smol tcp/ip stack

python-fido2 - Provides library functionality for FIDO 2.0, including communication with a device over USB.

atsamd - Target atsamd microcontrollers using Rust

kr-u2f - DEPRECATED A Browser extension that lets you use your phone as a U2F/WebAuthN Authenticator for strong, unphishable 2FA.

ssh-mars - An experiment using SSH to sign in to websites

shisho - Lightweight static analyzer for several programming languages

x8 - Hidden parameters discovery suite

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