- Contract name:
- EthereumDIDRegistry
- Optimization enabled
- false
- Compiler version
- v0.4.24+commit.e67f0147
- EVM Version
- default
- Verified at
- 2020-12-17T14:30:10.339643Z
Contract source code
pragma solidity ^0.4.4;
contract EthereumDIDRegistry {
mapping(address => address) public owners;
mapping(address => mapping(bytes32 => mapping(address => uint))) public delegates;
mapping(address => uint) public changed;
mapping(address => uint) public nonce;
modifier onlyOwner(address identity, address actor) {
require (actor == identityOwner(identity));
_;
}
event DIDOwnerChanged(
address indexed identity,
address owner,
uint previousChange
);
event DIDDelegateChanged(
address indexed identity,
bytes32 delegateType,
address delegate,
uint validTo,
uint previousChange
);
event DIDAttributeChanged(
address indexed identity,
bytes32 name,
bytes value,
uint validTo,
uint previousChange
);
function identityOwner(address identity) public view returns(address) {
address owner = owners[identity];
if (owner != 0x0) {
return owner;
}
return identity;
}
function checkSignature(address identity, uint8 sigV, bytes32 sigR, bytes32 sigS, bytes32 hash) internal returns(address) {
address signer = ecrecover(hash, sigV, sigR, sigS);
require(signer == identityOwner(identity));
nonce[signer]++;
return signer;
}
function validDelegate(address identity, bytes32 delegateType, address delegate) public view returns(bool) {
uint validity = delegates[identity][keccak256(delegateType)][delegate];
return (validity > now);
}
function changeOwner(address identity, address actor, address newOwner) internal onlyOwner(identity, actor) {
owners[identity] = newOwner;
emit DIDOwnerChanged(identity, newOwner, changed[identity]);
changed[identity] = block.number;
}
function changeOwner(address identity, address newOwner) public {
changeOwner(identity, msg.sender, newOwner);
}
function changeOwnerSigned(address identity, uint8 sigV, bytes32 sigR, bytes32 sigS, address newOwner) public {
bytes32 hash = keccak256(byte(0x19), byte(0), this, nonce[identityOwner(identity)], identity, "changeOwner", newOwner);
changeOwner(identity, checkSignature(identity, sigV, sigR, sigS, hash), newOwner);
}
function addDelegate(address identity, address actor, bytes32 delegateType, address delegate, uint validity) internal onlyOwner(identity, actor) {
delegates[identity][keccak256(delegateType)][delegate] = now + validity;
emit DIDDelegateChanged(identity, delegateType, delegate, now + validity, changed[identity]);
changed[identity] = block.number;
}
function addDelegate(address identity, bytes32 delegateType, address delegate, uint validity) public {
addDelegate(identity, msg.sender, delegateType, delegate, validity);
}
function addDelegateSigned(address identity, uint8 sigV, bytes32 sigR, bytes32 sigS, bytes32 delegateType, address delegate, uint validity) public {
bytes32 hash = keccak256(byte(0x19), byte(0), this, nonce[identityOwner(identity)], identity, "addDelegate", delegateType, delegate, validity);
addDelegate(identity, checkSignature(identity, sigV, sigR, sigS, hash), delegateType, delegate, validity);
}
function revokeDelegate(address identity, address actor, bytes32 delegateType, address delegate) internal onlyOwner(identity, actor) {
delegates[identity][keccak256(delegateType)][delegate] = now;
emit DIDDelegateChanged(identity, delegateType, delegate, now, changed[identity]);
changed[identity] = block.number;
}
function revokeDelegate(address identity, bytes32 delegateType, address delegate) public {
revokeDelegate(identity, msg.sender, delegateType, delegate);
}
function revokeDelegateSigned(address identity, uint8 sigV, bytes32 sigR, bytes32 sigS, bytes32 delegateType, address delegate) public {
bytes32 hash = keccak256(byte(0x19), byte(0), this, nonce[identityOwner(identity)], identity, "revokeDelegate", delegateType, delegate);
revokeDelegate(identity, checkSignature(identity, sigV, sigR, sigS, hash), delegateType, delegate);
}
function setAttribute(address identity, address actor, bytes32 name, bytes value, uint validity ) internal onlyOwner(identity, actor) {
emit DIDAttributeChanged(identity, name, value, now + validity, changed[identity]);
changed[identity] = block.number;
}
function setAttribute(address identity, bytes32 name, bytes value, uint validity) public {
setAttribute(identity, msg.sender, name, value, validity);
}
function setAttributeSigned(address identity, uint8 sigV, bytes32 sigR, bytes32 sigS, bytes32 name, bytes value, uint validity) public {
bytes32 hash = keccak256(byte(0x19), byte(0), this, nonce[identityOwner(identity)], identity, "setAttribute", name, value, validity);
setAttribute(identity, checkSignature(identity, sigV, sigR, sigS, hash), name, value, validity);
}
function revokeAttribute(address identity, address actor, bytes32 name, bytes value ) internal onlyOwner(identity, actor) {
emit DIDAttributeChanged(identity, name, value, 0, changed[identity]);
changed[identity] = block.number;
}
function revokeAttribute(address identity, bytes32 name, bytes value) public {
revokeAttribute(identity, msg.sender, name, value);
}
function revokeAttributeSigned(address identity, uint8 sigV, bytes32 sigR, bytes32 sigS, bytes32 name, bytes value) public {
bytes32 hash = keccak256(byte(0x19), byte(0), this, nonce[identityOwner(identity)], identity, "revokeAttribute", name, value);
revokeAttribute(identity, checkSignature(identity, sigV, sigR, sigS, hash), name, value);
}
}
Contract ABI
[{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"revokeAttribute","inputs":[{"type":"address","name":"identity"},{"type":"bytes32","name":"name"},{"type":"bytes","name":"value"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":""}],"name":"owners","inputs":[{"type":"address","name":""}],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":""}],"name":"delegates","inputs":[{"type":"address","name":""},{"type":"bytes32","name":""},{"type":"address","name":""}],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"setAttributeSigned","inputs":[{"type":"address","name":"identity"},{"type":"uint8","name":"sigV"},{"type":"bytes32","name":"sigR"},{"type":"bytes32","name":"sigS"},{"type":"bytes32","name":"name"},{"type":"bytes","name":"value"},{"type":"uint256","name":"validity"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"changeOwnerSigned","inputs":[{"type":"address","name":"identity"},{"type":"uint8","name":"sigV"},{"type":"bytes32","name":"sigR"},{"type":"bytes32","name":"sigS"},{"type":"address","name":"newOwner"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"bool","name":""}],"name":"validDelegate","inputs":[{"type":"address","name":"identity"},{"type":"bytes32","name":"delegateType"},{"type":"address","name":"delegate"}],"constant":true},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":""}],"name":"nonce","inputs":[{"type":"address","name":""}],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"setAttribute","inputs":[{"type":"address","name":"identity"},{"type":"bytes32","name":"name"},{"type":"bytes","name":"value"},{"type":"uint256","name":"validity"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"revokeDelegate","inputs":[{"type":"address","name":"identity"},{"type":"bytes32","name":"delegateType"},{"type":"address","name":"delegate"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"address","name":""}],"name":"identityOwner","inputs":[{"type":"address","name":"identity"}],"constant":true},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"revokeDelegateSigned","inputs":[{"type":"address","name":"identity"},{"type":"uint8","name":"sigV"},{"type":"bytes32","name":"sigR"},{"type":"bytes32","name":"sigS"},{"type":"bytes32","name":"delegateType"},{"type":"address","name":"delegate"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"addDelegateSigned","inputs":[{"type":"address","name":"identity"},{"type":"uint8","name":"sigV"},{"type":"bytes32","name":"sigR"},{"type":"bytes32","name":"sigS"},{"type":"bytes32","name":"delegateType"},{"type":"address","name":"delegate"},{"type":"uint256","name":"validity"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"addDelegate","inputs":[{"type":"address","name":"identity"},{"type":"bytes32","name":"delegateType"},{"type":"address","name":"delegate"},{"type":"uint256","name":"validity"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"revokeAttributeSigned","inputs":[{"type":"address","name":"identity"},{"type":"uint8","name":"sigV"},{"type":"bytes32","name":"sigR"},{"type":"bytes32","name":"sigS"},{"type":"bytes32","name":"name"},{"type":"bytes","name":"value"}],"constant":false},{"type":"function","stateMutability":"nonpayable","payable":false,"outputs":[],"name":"changeOwner","inputs":[{"type":"address","name":"identity"},{"type":"address","name":"newOwner"}],"constant":false},{"type":"function","stateMutability":"view","payable":false,"outputs":[{"type":"uint256","name":""}],"name":"changed","inputs":[{"type":"address","name":""}],"constant":true},{"type":"event","name":"DIDOwnerChanged","inputs":[{"type":"address","name":"identity","indexed":true},{"type":"address","name":"owner","indexed":false},{"type":"uint256","name":"previousChange","indexed":false}],"anonymous":false},{"type":"event","name":"DIDDelegateChanged","inputs":[{"type":"address","name":"identity","indexed":true},{"type":"bytes32","name":"delegateType","indexed":false},{"type":"address","name":"delegate","indexed":false},{"type":"uint256","name":"validTo","indexed":false},{"type":"uint256","name":"previousChange","indexed":false}],"anonymous":false},{"type":"event","name":"DIDAttributeChanged","inputs":[{"type":"address","name":"identity","indexed":true},{"type":"bytes32","name":"name","indexed":false},{"type":"bytes","name":"value","indexed":false},{"type":"uint256","name":"validTo","indexed":false},{"type":"uint256","name":"previousChange","indexed":false}],"anonymous":false}]
Deployed ByteCode
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