What cryptographic primitives does this skill cover?

This skill covers Ed25519 for digital signatures, X25519 for key exchanges, HKDF (SHA-256) for key derivation, and AES-256-CBC for symmetric encryption.

How does Reticulum handle forward secrecy?

Reticulum implements forward secrecy using Ratchets—X25519 private keys that rotate every 30 minutes (RATCHET_INTERVAL) to ensure past communications remain secure.

What is the structure of a Reticulum Identity?

A Reticulum Identity is a 512-bit keypair composed of a 256-bit X25519 encryption key and a 256-bit Ed25519 signing key, identified by a truncated 128-bit SHA-256 hash.

Does Reticulum use standard Fernet tokens?

It uses a modified Fernet format that removes version and timestamp metadata for increased efficiency and privacy, resulting in a 48-byte token overhead.

What is the purpose of HKDF in Reticulum?

HKDF is used to derive independent 32-byte signing and encryption keys from a shared ECDH secret, binding the keys to a specific context using the identity hash as a salt.

Reticulum Cryptography & Identity

Name: Reticulum Cryptography & Identity
Author: torlando-tech

bytorlando-tech

安全与测试

Implements and explains Reticulum's authoritative cryptographic primitives, identity structures, and forward-secrecy mechanisms.

关于

This skill provides Claude with authoritative knowledge of the Reticulum Network Stack's cryptographic implementation, covering Ed25519 signatures, X25519 key exchanges, and AES-256-CBC encryption. It offers precise implementation patterns for identity generation, Fernet-based token structures, and HKDF key derivation, ensuring that any Reticulum-compatible development adheres to the protocol's strict security standards. Additionally, it provides guidance on implementing advanced forward secrecy through the RNS Ratchet system, making it essential for developers building secure, decentralized communication tools.

主要功能

Detailed implementation patterns for 512-bit Reticulum Identity structures
Step-by-step encryption and decryption workflows using HKDF and AES-256-CBC
Authoritative guidance on Ed25519 signatures and X25519 key exchanges
Specification for efficient, modified Fernet-based token formats
Advanced forward secrecy implementation via RNS Ratchet lifecycle management
0 GitHub stars

使用场景

Building secure, peer-to-peer messaging applications on the Reticulum protocol
Auditing Reticulum-compatible software for cryptographic compliance and security
Implementing decentralized identity and key management systems for mesh networks

关于

主要功能

Detailed implementation patterns for 512-bit Reticulum Identity structures
Step-by-step encryption and decryption workflows using HKDF and AES-256-CBC
Authoritative guidance on Ed25519 signatures and X25519 key exchanges
Specification for efficient, modified Fernet-based token formats
Advanced forward secrecy implementation via RNS Ratchet lifecycle management
0 GitHub stars

使用场景

Building secure, peer-to-peer messaging applications on the Reticulum protocol
Auditing Reticulum-compatible software for cryptographic compliance and security
Implementing decentralized identity and key management systems for mesh networks