Sovrin Service for OwnYourData Notary

This service manages references to documents in the OwnYourData Notary Service by creating Decentralized Identifiers (DIDs) in the Sovrin Blockchain.

Usage

Get the Docker image: https://cloud.docker.com/u/oydeu/repository/docker/oydeu/srv-sovrin

Prerequisites

The following inputs must be available:

• DID registered as TRUST ANCHOR in the Sovrin blockchain
• wallet that incudes this DID
• link to genesis record of the blockchain
  • Sovrin Live Net: https://github.com/sovrin-foundation/sovrin/blob/stable/sovrin/pool_transactions_live_genesis
  • Sovrin Test Net: https://github.com/sovrin-foundation/sovrin/blob/stable/sovrin/pool_transactions_sandbox_genesis
    you can register a DID as Trust Anchor in the Sovrin Test Net here: https://s3.us-east-2.amazonaws.com/evernym-cs/sovrin-STNnetwork/www/trust-anchor.html
• indy-cli to manage DID and wallet - available here: https://github.com/hyperledger/indy-sdk/tree/master/cli

Compile the inputs from above into a JSON:

1. in indy-cli export the wallet with the DID to a file and note wallet-key and export-key

   indy> wallet open my-wallet key=wallet-key
   indy> wallet export export_path=/path/to/wallet export=export-key
   

2. base64 encode the exported wallet

   $ base64 -w0 /path/to/wallet
   

3. generate JSON with the following elements:

   {  
       "master_did":"DID string",
       "genesis_file":"link to genesis record of the blockchain",
       "wallet_key":"wallet-key from wallet export",
       "export_key":"export-key from wallet export",
       "wallet":"base64 encoded wallet"
   }
   

Start the service

$ docker run -d -i -p 3000:3000 oydeu/srv-sovrin /bin/init.sh "$(< /path/to/JSON_from_above)"

API Description

The API exposed by the Docker container is described here: https://api-docs.ownyourdata.eu/notary-sovrin/

Examples:

• request a new DID: curl http://localhost:3000/api/did/new
  response: {"did":"3V7SK7DrUdKYp1A4QAMNHy","seed":"e0015c5ba2894c7091ae8d1a0d14ca5c","verkey":"~FC9tYLSoDCnGwXSALCZKJc"}
• write DID to blockchain: curl -d did=3V7SK7DrUdKYp1A4QAMNHy -d verkey=~FC9tYLSoDCnGwXSALCZKJc -d seed=e0015c5ba2894c7091ae8d1a0d14ca5c -d hash=476911022fc90f12f23052ddc863fd2a3ad3e9f3123b986dd1fded867cd3ae27 -X POST http://localhost:3000/api/did/create
  response: {"wallet-key":"9bec3b1cf9a0","export-key":"14f34009253d","wallet":"VA...ha"}

Importing the wallet

To use the new DID in the provided wallet perform the following steps:

1. create wallet file

   $ echo -n "base64 encoded wallet" | base64 -d > new_wallet
   

2. import wallet in indy-cli

   indy> pool connect sovrin
   indy> wallet import new_wallet_name key=wallet-key export_path=/path/to/new_wallet export_key=export-key
   indy> wallet open new_wallet key=wallet-key
   indy> did use new-did
   indy> did rotate-key  # make sure to update keys after getting a DID from a public service
   

Improve the Sovrin Service for OwnYourData Notary

Please report bugs and suggestions for new features using the GitHub Issue-Tracker and follow the Contributor Guidelines.

If you want to contribute, please follow these steps:

1. Fork it!
2. Create a feature branch: git checkout -b my-new-feature
3. Commit changes: git commit -am 'Add some feature'
4. Push into branch: git push origin my-new-feature
5. Send a Pull Request

 

Lizenz

MIT License 2018 - OwnYourData.eu