A Multi-Blockchain-Based Cross-Domain Authentication and Authorization Scheme for Energy Internet

Algorithm 1

The key chaincode about crossing chain.

1: Procedure (s SmartContract) GetCrossMessage(ctx contractapi.TransactionContextInterface, channel, chaincode, user1, user2 string) (string, error)

2: params := []string{"GetMessage", user1, user2}

3: invokeArgs: = make([][]byte, len(params))

4: For i, arg: = range params {invokeArgs[i] = []byte(arg)}

5: response := ctx.GetStub().InvokeChaincode(chaincode, invokeArgs, channel)

6: If response.Status! = shim.OK then

7:  Return shim.Error(err.Error())

8: End if

9: users := user1 + ":" + user2

10:   messages := Messages{Users: users, Message: string(response.Payload)}

11:   msgJSON, err: = json.Marshal(messages)

12:   If err! = nil then

13:  Return shim.Error(err.Error())

14:   End if

15:   Err = ctx.GetStub().PutState(users, msgJSON)

16:   If err! = nil then

17:  Return shim.Error(err.Error())

18:   End if

19:   Return string(response.Payload), nil

20: End procedure