Trillian Tessera is a Go library for building tile-based transparency logs (tlogs). It is the logical successor to the approach Trillian v1 takes in building and operating logs.
The implementation and its APIs bake-in current best-practices based on the lessons learned over the past decade of building and operating transparency logs in production environments and at scale.
Tessera goals:
- Tiles-native API and storage
- Support for both cloud and on-premises infrastructure
- GCP and AWS support will be provided initially
- Cloud agnostic MySQL and POSIX filesystem support
- Make it easy to build and deploy new transparency logs on supported infrastructure
- Library instead of microservice architecture
- No additional services to manage
- Lower TCO for operators compared with Trillian v1
- Fast sequencing and integration of entries
- Optional functionality which can be enabled for those ecosystems/logs which need it (only pay the cost for what you need):
- "Best-effort" de-duplication of entries
- Synchronous integration
- Broadly similar write-throughput and write-availability, and potentially far higher read-throughput and read-availability compared to Trillian v1 (dependent on underlying infrastructure)
- Enable building of arbitrary log personalities, including support for the peculiarities of a CT Tiles compliant log.
Tessera is currently under active development, and is not yet ready for general use. However, early feedback is welcome.
Alpha expected by Q4 2024, and production ready in the first half of 2025.
Trillian v1 is still in use in production environments by multiple organisations in multiple ecosystems, and is likely to remain so for the mid-term.
New ecosystems, or existing ecosystems looking to evolve, should strongly consider planning a migration to Tessera and adopting the patterns it encourages.
import (
tessera "github.com/transparency-dev/trillian-tessera"
)
// TODO...See CONTRIBUTING.md for details.
This repo is licensed under the Apache 2.0 license, see LICENSE for details
- Slack: https://transparency-dev.slack.com/ (invitation)
- Mailing list: https://groups.google.com/forum/#!forum/trillian-transparency
Tessera builds upon the hard work, experience, and lessons from many many folks involved in transparency ecosystems over the years.