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Calimero Network

website·Indexed 30 days ago

https://calimero-network.github.io

A framework for building fully decentralized applications that ensures data privacy. It features a P2P networking component using DCUtR for NAT traversal, a Local Data Vault, and integrations with blockchain protocols including NEAR, Starknet, Ethereum, Stellar, and ICP. The ecosystem provides SDKs for protocol definition, CLI tools such as Merod and Meroctl for node management, and support for running nodes as systemd services.

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What's inside Calimero Network

  1. Overview of the Merobox Workflow System

    The Merobox workflow system allows developers to define complex operations using YAML. Key capabilities include:

    • Declarative Configuration: Define operations in YAML files.
    • Dynamic Value Management: Capture and reuse values across different steps.
    • Step Orchestration: Chain multiple operations together.
    • Error Handling: Integrated validation and error reporting.
    • Testing Integration: Suitable for automated testing scenarios.

  2. Overview of Calimero Network Architecture

    Calimero is a framework for building peer-to-peer Self-Sovereign applications. Its architecture consists of several core components:

    • Client Nodes: Devices running Calimero apps that act as gateways and connect with other peers.
    • WebAssembly (WASM) Applications: Apps are compiled to WASM for secure, isolated, and high-performance execution in a sandboxed environment.
    • Contexts: Application-specific networks that allow direct communication between a subset of users, eliminating the need for global consensus and gas fees.
    • Runtime Environment: Manages concurrent applications, state synchronization, atomic transactions, and scoped storage for each context.
    • Specialized Nodes: Provide advanced services like encrypted storage, delegated execution, and administrative functions.

  4. Overview of Blockchain Integration functionalities

    The blockchain integration provides a Proxy Contract capable of the following core functionalities: cross-contract calls to other contracts, executing token transfers, managing key-value storage for arbitrary data, updating internal configuration variables (such as vote requirements and proposal limits), and managing the creation and execution of proposals.

  5. Understand Calimero network encryption principles

    Calimero implements a zero-trust encryption model for data in transit based on the following key principles:

    • Forward Secrecy: Past messages remain secure even if a future key is compromised.
    • Post-Compromise Security: Future messages remain secure after a previous message compromise.
    • Zero Trust: No reliance on third-party intermediaries for security.
    • Verifiable End-to-End Encryption: Only intended recipients can decrypt messages.
    • Asynchronous Communication: Communication can be initiated without recipients being online.
    • Multi-Device Support: Seamless security across multiple devices.
    • Deniability: Plausible deniability of message authorship for non-context members.
    • Non-Interactive Group Management: Members can be added or removed without requiring active interaction.

  7. Understand Calimero Contexts and Application Networks

    Contexts are application-specific decentralized networks that enable direct peer-to-peer communication without intermediaries. They operate using WebAssembly (WASM) modules to define logic and rules. Key operational characteristics include:

    • Initialization: A user initiates a network by selecting a WASM module from a repository, establishing a unique identity and update strategies.
    • Joining: New members generate a unique identity, download the WASM module, and synchronize existing data. Access is managed via direct invites or Access Control Lists (ACLs).
    • Security: All communications are secured with end-to-end encryption using the Double Ratchet Algorithm.
    • Consistency: The system is 'offline-first,' using synchronization to maintain eventual consistency when peers return online.
    • Governance: Network parameters and WASM module updates are managed via user-driven consensus mechanisms.
    • Specialized Nodes: Participants can deploy Specialized Nodes to handle heavy data processing, advanced encryption, or additional storage to scale network performance.

  10. Retrieve application details using the Calimero client

    Use the get_application method of the client object to fetch detailed information about a specific application by providing its application ID (app_id).
    # Retrieve application details
app_info = client.get_application(app_id)
print(f"✓ App details: {app_info}")