SSO - dApps
The login to decentralized apps (DApps) use case is part of Single Sign On scenarios.
In this case, the protocol of iden3 solution is to enable the identity main keys (Operational Keys) to issue a claim for a pair of keys specific for the use in an DApp which is offering single sign-on.
Once this claim is issued, the new key pair will be used automatically to login. Since there is no backend, communication with the DApp has been implemented through IPFS.