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Introducing Sunlight, a CT implementation built for scalability, ease of operation, and reduced cost (letsencrypt.org)

Sunlight Certificate Transparency Web PKI Let's Encrypt

Sunlight is Let’s Encrypt’s new Certificate Transparency log that aims to address scalability, operational, and cost challenges in the CT ecosystem. Developed in collaboration with Filippo Valsorda, it introduces innovative elements like tiles for efficient data management and a simplified architecture to enhance reliability and performance.
Main Points
- Introduction of SunlightSunlight is a new Certificate Transparency log implementation designed for scalability, ease of operation, and cost-effectiveness. It's developed by Let's Encrypt with feedback from the transparency logging community.
- Sunlight's implementation and efficiencyThe new system utilizes 'tiles' – files containing 256 elements each – to manage the high volume of certificates more efficiently than previous methods.
- Architecture and merge delay resolutionA key feature of Sunlight is its architecture that eliminates the need for leader election on the write path and removes the merge delay, addressing common CT log challenges.
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