Katie: Transparency Server

Key Transparency (KT) is a safe, publicly-auditable way to distribute public keys for end-to-end encryption. More generally, the same technology can also be used for tamper-evident logging, key usage detection, ensuring that a group of users agree on a shared value, and many other applications.

Documentation

More information is available in the docs/ folder, and you can also read these academic papers for background:

• Merkle^2: A Low-Latency Transparency Log System
• CONIKS: Bringing Key Transparency to End Users