🛰️ Welcome to ZeroEcho

No Signal Is Ever Truly Silent: A Modular Toolkit for Covert, Resilient, and Future-Proof Communication

ZeroEcho-logo.pngZeroEcho is a modular cryptographic toolkit designed to support secure, scriptable, and resilient data workflows - even in low-connectivity, offline, or constrained environments. Built with flexibility in mind, it enables developers, researchers, and advanced users to construct encryption pipelines using both classic and post-quantum algorithms, combined with robust deployment models.

Whether you're working on secure file storage, encrypted communication, or privacy-focused data exchange, ZeroEcho provides a versatile foundation for modern cryptographic workflows - with a focus on portability, future-proofing, and offline survivability.

✨ Key Features

  • Post-Quantum Cryptography (PQC): Includes NIST-standardized ML-KEM (Kyber) and SPHINCS+ for signatures, with modular integration of other PQC algorithms to protect against quantum threats.
  • Classic Cryptography: Full support for proven schemes like RSA, ECDSA, and Ed25519, usable alone or in hybrid PQC deployments.
  • Multi-Recipient Encryption (KEM): Encrypt a single payload for many recipients without shared secrets or central authority, with optional decoy data streams for added privacy.

🔄 Operation Modes

  • CLI Tools & Keystore Management: Command-line utilities for encryption, deployment, and secure key lifecycle management.
  • Scripted Deployment (Incubator): Generate helper scripts for uploading payloads to public or asynchronous endpoints (e.g., cloud drives, pastebins).
  • Steganographic Embedding (Incubator): Hide ciphertext in images, audio, or video for discreet transmission. (Currently in transition; may become a standalone pluggable project.)

🔐 Vision

  • Cryptographic secrecy with modern and post-quantum algorithms
  • Dead-drop and covert channels for asynchronous message delivery
  • Steganographic encoding to hide data in plain sight
  • Composable processing chains via fluent builders for precise control

These goals are implemented step by step, always guided by security, clarity, and adaptability.

⚙️ What ZeroEcho Offers

  • A structured API for secure content processing
  • Chainable DataContent nodes for flexible input/output transformation
  • Builders for consistent and strict parameter initialization
  • Interfaces for integrating encryption, obfuscation, and concealment tools
  • Utilities for secure parameterization, reuse, and immutability

These tools can be embedded into larger systems or used directly for hidden communication.

📚 Documentation & Samples

📌 Status

ZeroEcho is in active development but already stable and production-ready. The core cryptographic engine, context model, and CLI utilities are available now.

Some incubator components (e.g., steganography, script export) are provided with basic functionality and may evolve into pluggable modules.

Source code: ZeroEcho on Gitea

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