Send in your ideas. Deadline October 1, 2024
Theme fund: NGI Zero Core
Start: 2024-04
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Software engineering


Microlibrary for Poly1305 hashing

In modern network protocols, every packet is authenticated using a message-authentication code (MAC). Any data modified by an attacker is immediately caught and rejected by the MAC. The most popular MAC algorithms are Poly1305, normally used with the ChaCha20 cipher as part of ChaCha20-Poly1305, and GMAC, normally used with the AES cipher as part of AES-GCM. Many applications, such as WireGuard, require specifically Poly1305. This project will develop and release a new software library, lib1305, for Poly1305. The library will provide comprehensive and well-optimized software exploiting the 64-bit assembly instructions of Intel CPUs to provide top speeds for those CPUs, while meeting the security constraint of not leaking secret information through timing.

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This project was funded through the NGI0 Core Fund, a fund established by NLnet with financial support from the European Commission's Next Generation Internet programme, under the aegis of DG Communications Networks, Content and Technology under grant agreement No 101092990.