CDKDataCommittee.sol

Functions¶

  function initialize(
  ) external

Allows the admin to setup members of the committee.

  function setupCommittee(
    uint256 _requiredAmountOfSignatures,
    string[] urls,
    bytes addrsBytes
  ) external

Note

The system requires N/M signatures where N => _requiredAmountOfSignatures and M => urls.length.
The number of urls must be the same as the addresses encoded in the addrsBytes.
A member is represented by a url and the address contained in urls[i] and addrsBytes[i*_ADDR_SIZE : i*_ADDR_SIZE + _ADDR_SIZE].

Name	Type	Description
`_requiredAmountOfSignatures`	uint256	Required amount of signatures
`urls`	string[]	List of urls of the members of the committee
`addrsBytes`	bytes	Byte array that contains the addressess of the members of the committee

  function getAmountOfMembers(
  ) public returns (uint256)

Verifies that the given signedHash has been signed by requiredAmountOfSignatures committee members.

  function verifySignatures(
    bytes32 signedHash,
    bytes signaturesAndAddrs
  ) external

Name	Type	Description
`signedHash`	bytes32	Hash that must have been signed by requiredAmountOfSignatures of committee members
`signaturesAndAddrs`	bytes	Byte array containing the signatures and all the addresses of the committee in ascending order
[signature 0, …, signature requiredAmountOfSignatures -1, address 0, … address N]
note that each ECDSA signatures are used, therefore each one must be 65 bytes

Emitted when the committee is updated.

  event CommitteeUpdated(
    bytes32 committeeHash
  )

Name	Type	Description
`committeeHash`	bytes32	hash of the addresses of the committee members