A Rust workspace for building secure, privacy-preserving applications using decentralised identity technologies. The TDK provides libraries and tools for DID resolution, DIDComm messaging, data integrity proofs, cryptographic primitives, and more.

Disclaimer: This project is provided "as is" without warranties or guarantees. By using this framework, users agree to assume all risks associated with its deployment and use, including implementing security and privacy measures in their applications. Affinidi assumes no liability for any issues arising from the use or modification of the project.

graph TD
    TDK["affinidi-tdk<br/><i>Unified entry point</i>"]

    subgraph Messaging["Affinidi Messaging"]
        SDK["messaging-sdk"]
        DIDCOMM["messaging-didcomm"]
        CORE["messaging-core"]
        TSP["affinidi-tsp"]
        MEDIATOR["messaging-mediator"]
        HELPERS["messaging-helpers"]
        TEXTCLIENT["messaging-text-client"]
    end

    subgraph Resolver["Affinidi DID Resolver"]
        CACHESDK["resolver-cache-sdk"]
        CACHESERVER["resolver-cache-server"]
        COMMON["did-common"]
        TRAITS["resolver-traits"]
        DIDSCID["did-scid"]
        DIDEXAMPLE["did-example"]
    end

    subgraph Common["TDK Common Libraries"]
        CRYPTO["affinidi-crypto"]
        ENCODING["affinidi-encoding"]
        SECRETS["secrets-resolver"]
        AUTH["did-authentication"]
        TDKCOMMON["tdk-common"]
        DI["data-integrity"]
        RDF["rdf-encoding"]
    end

    MP["affinidi-meeting-place"]

    TDK --> SDK
    TDK --> MP
    TDK --> DI
    TDK --> CACHESDK
    TDK --> DIDCOMM
    TDK --> AUTH
    TDK --> SECRETS
    TDK --> CRYPTO
    TDK --> TDKCOMMON
    TDK --> COMMON

    SDK --> DIDCOMM
    SDK --> CACHESDK
    DIDCOMM --> CORE
    TSP --> CORE
    MEDIATOR --> SDK
    MEDIATOR --> TSP
    HELPERS --> SDK
    HELPERS --> TSP
    TEXTCLIENT --> SDK
    MP --> AUTH
    MP --> TDKCOMMON

    CACHESDK --> COMMON
    CACHESDK --> TRAITS
    CACHESERVER --> CACHESDK
    DI --> CRYPTO
    DI --> RDF
    SECRETS --> CRYPTO
    SECRETS --> ENCODING
    AUTH --> SECRETS
    TDKCOMMON --> AUTH
    TDKCOMMON --> DI

A single crate that re-exports the core TDK libraries with feature flags so you can depend on one crate and enable only what you need.

Secure, private messaging built on DIDComm v2 and TSP.

High-performance DID resolution with local and network caching (250k+ resolutions/sec cached).

Shared building blocks used across the workspace.

Discover and connect with others using DIDs and DIDComm in a secure and private way.

• Rust 1.90.0+ (2024 Edition)
• Redis 8.0+ (required for the messaging mediator)
• Docker (recommended for running Redis)

Add the unified TDK crate to your project:

[dependencies]
affinidi-tdk = "0.5"

Or depend on individual crates for finer control:

[dependencies]
affinidi-did-resolver-cache-sdk = "0.8"
affinidi-messaging-sdk = "0.15"
affinidi-data-integrity = "0.4"

use affinidi_did_resolver_cache_sdk::{config::ClientConfigBuilder, DIDCacheClient};

let config = ClientConfigBuilder::default().build();
let resolver = DIDCacheClient::new(config).await?;
let result = resolver.resolve("did:key:z6Mkr...").await?;
println!("DID Document: {:#?}", result.doc);

use affinidi_messaging_sdk::{ATM, config::Config};

let config = Config::builder()
    .with_my_did("did:peer:2...")
    .with_atm_did("did:peer:2...")
    .build()?;
let mut atm = ATM::new(config, vec![]).await?;
atm.send_ping("did:peer:2...", true, true).await?;

If you face any issues or have suggestions, please don't hesitate to contact us using this link.

If you have a technical issue, you can open an issue directly in GitHub. Please include a title and clear description, as much relevant information as possible, and a code sample or executable test case demonstrating the expected behaviour.

Want to contribute? Head over to our CONTRIBUTING guidelines.

This project is licensed under the Apache-2.0 license.