TLS (Rustls)
Let's get the Rustls TLS library ready to replace OpenSSL in as many projects as possible.
Memory Safety
for the Internet's most critical infrastructure
Initiatives
DNS (Hickory)
Let's create a memory safe, high performance, fully recursive DNS resolver.
sudo/su (sudo-rs)
Let's make the utilities that mediate privileges safer.
NTP (ntpd-rs)
Let's create a memory safe NTP implementation.
AV1 (rav1d)
Let's create a memory safe AV1 decoder that delivers great performance.
zlib
Let's create a memory safe zlib compression library with great performance.
Linux Kernel
Let's make it possible to write memory safe drivers for the Linux kernel.
Reverse Proxy (River)
Let's make the network edge memory safe.
Apache httpd (mod_tls)
Let's make it possible to use memory safe TLS networking in Apache httpd.
curl
Let's make TLS and HTTP networking code in curl memory safe.
Tools
Let's improve the tools we use to bring memory safe software to the world.
From our blog
May 13, 2025
Rustls Server-Side Performance
Current versions of Rustls show competitive performance when processing many connections at the same time on a server.
March 6, 2025
An Update on Memory Safety in the Linux Kernel
Rust drivers are on the way via growing interest and community.
March 4, 2025
How Prossimo's Risk and Opportunity Criteria Help Us Plan
Identifying memory safety work that is both high impact and efficiently achievable.
February 11, 2025
Hickory DNS is Moving Toward Production Readiness
A high performance, memory safe, and open source recursive DNS resolver now has improved DNSSEC support, NSEC3 support, and new features.
Get Involved
Being part of ambitious work like Prossimo is easier than you might think: 100% of our funding comes from charitable donations from companies and people like you.
When you support Prossimo, you’re helping to create a future for the Web that is more memory safe and more secure - and that benefits everyone using it!
DonateBring greater security to your organization by advocating for memory safe code in your organization!
Many organizations match donations to nonprofits made by employees. Check if your organization has a matching program and double your impact!
See if your organization has a matching programProssimo works to connect maintainers behind the Internet's most critical pieces of software with the people and organizations who want to see Internet security move forward by adopting memory safe languages. Here's the simple framework of how Prossimo works:
- Identify an initiative that's a good fit for Prossimo
- Seek funding for the initiative
- Commence the initiative
By funding, you can support this important work!
Contact us to learn about upcoming Prossimo initiatives: donate@abetterinternet.org
Support this WorkDonations of Stock
Appreciated securities or mutual fund shares that you’ve owned for more than one year can be excellent charitable gifts.
| Brokerage Firm: | Vanguard |
|---|---|
| Account Name: | Internet Security Research Group |
| ISRG Account #: | 44865458 |
| DTC #: | 0062 |
| Tax ID #: | 46-3344200 |
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Donor Advised FundsRecommend a donation to Internet Security Research Group (our parent org) from your gift fund. 100% of your donation will go to support a secure and privacy-respecting Internet.