| 01: pragma solidity 0.4.23; |
| 02: contract ConsentPerDataSubjectDevice |
| 03: mapping (bytes32 => ConsentVersion) controller; |
| //the address of the ADVOCATE platform |
| 04: address private ADVOCATE = 0x583031d1113ad414f02576bd6afabfb302140225; |
| 05: bytes32 subjectHash = 0xd35f61ad141d7b92f4c17e609ef394292ca0e9341942c55...; |
| 06: bytes32 deviceHash = 0xa018a0957ed590aeb053fa0561ea90453e260eca1846f...; |
| 07: struct ConsentVersion |
| 08: bytes32 consentHash; |
| 09: mapping (bytes32 => uint256) timeStamp; |
| 10: |
| //Function 1: add new consent for a data controller |
| 11: function addConsent(bytes32 _ctlhash, bytes32 _csthash) public |
| 12: require(msg.sender == ADVOCATE); //only the owner can add new values |
| 13: controller[_ctlhash].consentHash.push(_csthash); |
| 14: controller[_ctlhash].timeStamp[_csthash] = now; |
| 15: |
| //Function 2: return the hash of the last consent for a data controller |
| 16: function getLastConsent(bytes32 _ctlhash) view public returns (bytes32) |
| 17: if (controller[_ctlhash].consentHash.length == 0) return 0; |
| 18: else return controller[_ctlhash].consentHash[controller[_ctlhash].consentHash.length - 1]; |
| 19: |
| //Function 3: return the time of consent for a data controller |
| 20: function getTime(bytes32 _ctlhash, bytes32 _csthash) view public returns (uint256) |
| 21: return controller[_ctlhash].timeStamp[_csthash]; |
| 22: |
| //Function 4: return all the consents for a data controller |
| 23: function getAll(bytes32 _ctlhash) view public returns (bytes32) |
| 24: return controller[_ctlhash].consentHash; |
| 25: |
| 26: |
