Comments (3)
@kimdhamilton This one is for you.
from rwot5-boston.
It depends on what kind of DID is used by the blockcert.
In the BTCR method for DIDs, if the unspent output (aka UTXO) of the destination address of the DID transaction is spent without use of a op_return output, the DID is considered to be revoked. This information is available on every bitcoin full-node in the world within a few minutes, and is confirmed in ~10 minutes. It is as decentralized as bitcoin is.
Other DID methods use different techniques for revocation.
from rwot5-boston.
In this paper, @joaosantos15 and I presented a solution where the set of authorized revokers are flexible and use case dependent. The authorized revokers are stored in the contract, so this assumes that at issuance time (and revocation contract creation time) these individuals are known.
The intent for Blockcerts scenarios is that the issuer or recipient would be able to revoke that recipient's credential by assertion uid (an open badges concept).
Note that this paper is pretty old so it's not using the Verifiable Credentials scheme or DIDs.
Furthermore, our approach has downsides which we mention in the paper, one of which is that it enables correlation. Future revisions would attempt to address this.
from rwot5-boston.
Related Issues (20)
- Typo: name is wolberger, not wolberg HOT 1
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- Specify an tx-signed deterministic DDO HOT 2
- BTCR intro documentation HOT 2
- DDOs as Verifiable Claims HOT 3
- Everyone: github DID HOT 2
- Demo of DID:BTCR / DDO based on reasonable practices HOT 3
- Holds and Timelocks HOT 1
- Need better name for what OP_RETURN is pointing to
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- When storing the DDO on IPFS how to encode the corresponding hash in the OP_RETURN HOT 2
- At close of Hackathon, evangelize results to continue dialog HOT 1
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- BTCR: control key schema?
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from rwot5-boston.