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feat: add ability to use a compressed publicKey as identifier #73

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Aug 21, 2020
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feat: add ability to use a compressed publicKey as identifier #73

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16 changes: 12 additions & 4 deletions doc/did-method-spec.md
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Original file line number Diff line number Diff line change
Expand Up @@ -100,19 +100,27 @@ The method specific identifier is represented as the Hex-encoded Ethereum addres
on the target network.

ethr-did = "did:ethr:" ethr-specific-idstring
ethr-specific-idstring = [ ethr-network ":" ] ethr-address
ethr-network = "mainnet" / "ropsten" / "rinkeby" / "kovan"
ethr-address = "0x" 40*HEXDIG
ethr-specific-idstring = [ ethr-network ":" ] ethereum-address / public-key-hex
ethr-network = "mainnet" / "ropsten" / "rinkeby" / "kovan" / network-chain-id
network-chain-id = "0x" *HEXDIG
ethereum-address = "0x" 40*HEXDIG
public-key-hex = "0x" 66*HEXDIG

The Ethereum address is case-insensitive.
The Ethereum address or publicKeyHex are case-insensitive.

Note, if no public Ethereum network was specified, it is assumed that the DID is anchored
on the Ethereum mainnet per default. This means the following DIDs will resolve to the same
DID Document:

did:ethr:mainnet:0xb9c5714089478a327f09197987f16f9e5d936e8a
did:ethr:0x1:0xb9c5714089478a327f09197987f16f9e5d936e8a
did:ethr:0xb9c5714089478a327f09197987f16f9e5d936e8a

If the identifier is a `public-key-hex`:
* it MUST be represented in compressed form (see https://en.bitcoin.it/wiki/Secp256k1)
* the corresponding `ethereumAddress` entry is also added to the default DID document, unless the `owner` has been changed to a different address.
* all CRUD operations MUST be made using the corresponding `ethereumAddress` and MUST originate from the correct `owner` address.

## CRUD Operation Definitions

### Create (Register)
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