NOTE: This crate is deprecated. It provides C-callable API which available through FFI only. For this reason, we have decided don't to support indy-sdk(https://github.com/hyperledger/indy-sdk) as Rust Crate anymore. This is the official SDK for Hyperledger Indy (https://www.hyperledger.org/projects), which provides a distributed-ledger-based foundation for self-sovereign identity (https://sovrin.org). The major artifact of the SDK is a c-callable library.