v0.2.0

DID Registry

This library contains the Ethereum contract code that allows the owner of a AS2
DID identity to update the attributes that appear in his DID Document.

These contracts allow Ethereum addresses to present signing information about
themselves with no prior registration. It allows them to perform key rotation
and specify different keys and services that are used on its behalf for both on
and off-chain usage.

Depending on the functionalities that you want to use, there are two smart
contracts to create a DID Registry.

1. DIDRegistry: It is the basic DID Registry that allows multiple
   controllers and automatic key rotation. The parameters for deployment are:
   • minKeyRotationTime: The minimum time (in seconds) to automatically rotate
     the controller (each DID can set their own rotation time, but it can be
     less than this value)
2. DIDRegistryRecoverable: It is the advanced DID Registry that allows, in
   addition to the functions of a basic DID, key recovery. The parameters for
   deployment are:
   • minKeyRotationTime (uint): The minimum time (in seconds) to automatically
     rotate the controller (inherit from DID Registry)
   • maxAttempts (uint): The maximum number of failed attempts in the reset
     period
   • minControllers (uint): The minimum number of controller that must have
     the account to be able to use this feature
   • resetSeconds (uint): The reset time period (in seconds). When the account
     exceeds the maxAttempts, the account must wait to reach the
     resetSeconds time before to call again the function to recover the
     account. When this time period is reached, the keys successfully proved to
     recover the account will be deleted, in that case is needed to prove again
     the controllers to recover the account.

The official AS2 DID Registries are deployed on xDai here::

Registry	Address	Parameters
DIDRegistry	0x	minKeyRotationTime: 3600
DIDRegistryRecoverable	0x	minKeyRotationTime: 3600 maxAttempts: 3 minControllers: 5 resetSeconds: 86400