# Ed25519 Projects at AI Tinkerers

> Canonical HTML: https://aitinkerers.org/technologies/ed25519
> Markdown URL: https://aitinkerers.org/technologies/ed25519.md
> Technology record last updated: 2026-03-20T18:42:26Z
> Generated: 2026-10-25T04:06:58Z

Ed25519 is a high-speed, high-security public-key signature system based on the Twisted Edwards curve.

Engineered by Daniel J. Bernstein and his team, Ed25519 delivers a 128-bit security level with performance that outclasses traditional RSA-2048 and ECDSA. It uses 32-byte public keys and 64-byte signatures, making it ideal for bandwidth-constrained environments like IoT and blockchain. The design eliminates common cryptographic pitfalls: it is immune to cache-timing attacks (no secret array indices), branch-prediction leaks (no secret branch conditions), and signature malleability. With verification speeds reaching 71,000 signatures per second on a standard quad-core 2.4GHz processor, it is the standard for modern protocols including OpenSSH, TLS 1.3, and Signal.

- Official technology site: https://ed25519.cr.yp.to/
- Public AI Tinkerers demos and talks: 1
- Result page: 1 of 1

## Recent Public Talks and Demos

### [Schema through the chain: one contract intact across 3+ levels of multi-agent delegation](https://hong-kong.aitinkerers.org/talks/rsvp_DkZBficStKM)

- Event context: AI Tinkerers Hong Kong: September Meetup with Cyberport and EY — 2026-09-29 — Hong Kong
- Public talk page: https://hong-kong.aitinkerers.org/talks/rsvp_DkZBficStKM

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