GatoPSKTLS
Copyright 2026 Egor Babushkin

This product includes software developed at
the Drogue IoT project (https://drogue.io/).

Original project: embedded-tls
  https://github.com/drogue-iot/embedded-tls
  Copyright 2020-2025 The Drogue IoT contributors
  Licensed under the Apache License, Version 2.0

GatoPSKTLS is a fork that adds TLS 1.3 PSK_KE server-mode (handshake driver,
ClientHello parser, ServerHello/EncryptedExtensions emit, server-side key
schedule helpers, and a `TlsServerSession` adapter) on top of the upstream
client-only library. The original client implementation, key schedule
primitives, AEAD wrappers, and HKDF/HMAC code are preserved; modifications
are documented in CHANGELOG.md.
