# Strengthening Snow for the open source community

DevFeed: [Strengthening Snow for the open source community](<https://devfeed.tech/articles/strengthening-snow-for-the-open-source-community-1959.md>)

Original publisher: [Read original article](<https://1password.com/blog/strengthening-snow-for-the-open-source-community>)

Author: info@1password.com (Daryl Martin and Christian Rask)

Published: 2026-06-16T00:00:00Z

Content type: article

Language: en

Sources: [Blog on 1Password Blog](<https://devfeed.tech/sources/blog-on-1password-blog.md>)

Topics: [open-source-security](<https://devfeed.tech/topics/open-source-security.md>)

Tags: [building-1password](<https://devfeed.tech/tags/building-1password.md>), [contributors](<https://devfeed.tech/tags/contributors.md>), [cryptographic](<https://devfeed.tech/tags/cryptographic.md>), [developers](<https://devfeed.tech/tags/developers.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [pull-requests](<https://devfeed.tech/tags/pull-requests.md>), [review](<https://devfeed.tech/tags/review.md>), [rust](<https://devfeed.tech/tags/rust.md>), [security](<https://devfeed.tech/tags/security.md>), [testing](<https://devfeed.tech/tags/testing.md>)

## AI overview

1Password funded and published an independent security assessment of Snow, an open-source Rust implementation of the Noise Protocol Framework. The review found 10 issues; eight, including a nonce-handling flaw and an invalid-PSK panic, have been resolved and validated.

## Source excerpt

At 1Password, we regularly invite outside experts to challenge our assumptions and strengthen our security. We encourage security researchers to participate in our bug bounty programs, and have spent years building a collaborative research environment. We also believe in the benefit of open source software and standards, which raise the bar for the industry as a whole, while ultimately benefiting our 1Password customers. That's why we funded an independent security assessment of the open source library Snow, worked closely with the maintainer on remediation, and are making the results publicly available for anyone to review. Where to read the report The results of the independent security assessment are available now for anyone who wants to learn more. Read the report Why we invested in Snow Snow is a Rust implementation of the Noise Protocol Framework, a system for building secure channels using customizable cryptographic handshake patterns based on Diffie-Hellman key exchange. We rely on Noise-protected channels in parts of 1Password. Since Snow gives Rust developers an implementation of that framework, that makes it, for us, part of the security foundation we care about getting right. Funding validation on Snow allows us to improve something we care deeply about while giving back to the open source community that helps make 1Password possible. We are active contributors to Snow. The pull requests we've opened and the independent security assessment we funded reflect our commitment to helping strengthen the project. What Trail of Bits found Trail of Bits reviewed Snow through a combination of manual review and automated testing over four engineer-weeks. Their report identified 10 findings in total: one medium-severity issue, one low-severity issue, and eight informational findings. The most important issue discovered was a nonce-handling bug that could let an attacker permanently disrupt an encrypted channel without knowing any cryptographic secrets. Another findi