| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| |
| package defaultservice |
| |
| import ( |
| "encoding/hex" |
| "fmt" |
| |
| "github.com/apache/incubator-milagro-dta/libs/documents" |
| "github.com/apache/incubator-milagro-dta/pkg/api" |
| "github.com/apache/incubator-milagro-dta/pkg/common" |
| "github.com/apache/incubator-milagro-dta/pkg/identity" |
| "github.com/pkg/errors" |
| ) |
| |
| // Order2 - Process an incoming Blockchain Order transaction from a MasterFiduciary, to generate the final public key/address |
| func (s *Service) Order2(tx *api.BlockChainTX) (string, error) { |
| nodeID := s.NodeID() |
| reqPayload := tx.Payload |
| txHashString := hex.EncodeToString(tx.TXhash) |
| |
| remoteIDDoc, err := common.RetrieveIDDoc(s.Tendermint, s.MasterFiduciaryNodeID()) |
| if err != nil { |
| return "", err |
| } |
| |
| // SIKE and BLS keys |
| keyseed, err := s.KeyStore.Get("seed") |
| if err != nil { |
| return "", err |
| } |
| _, sikeSK, err := identity.GenerateSIKEKeys(keyseed) |
| if err != nil { |
| return "", err |
| } |
| _, blsSK, err := identity.GenerateBLSKeys(keyseed) |
| if err != nil { |
| return "", err |
| } |
| |
| //Decode the Order from the supplied TX |
| order := &documents.OrderDoc{} |
| err = documents.DecodeOrderDocument(reqPayload, txHashString, order, sikeSK, nodeID, remoteIDDoc.BLSPublicKey) |
| |
| //Generate commitment |
| commitment, extension, err := s.Plugin.PrepareOrderResponse(order) |
| if err != nil { |
| return "", errors.Wrap(err, "Generating Final Public Key") |
| } |
| |
| //TODO: Do something with the Commitment, which should only be visible to the Principal |
| //For now, we will put it in a TX and broadcast with only the Principal as Recipients |
| //The Processor for the TX is 'dump' - So the principal will pick up the TX and display |
| //its contents. |
| |
| recipientList, err := common.BuildRecipientList(s.Tendermint, nodeID) |
| if err != nil { |
| return "", err |
| } |
| |
| //Populate extension fields |
| order.OrderPart2.CommitmentPublicKey = commitment |
| if order.OrderPart2.Extension == nil { |
| order.OrderPart2.Extension = make(map[string]string) |
| } |
| for key, value := range extension { |
| order.OrderPart2.Extension[key] = value |
| } |
| |
| //Create a new Transaction payload and TX |
| tx, txID, err := common.CreateOrderTX(nodeID, api.TXOrderResponse, s.Store, blsSK, order, recipientList, nodeID) |
| s.Logger.Debug("Created new %v Tx: %v", api.TXOrderResponse, txID) |
| |
| return s.Tendermint.PostTx(tx) |
| } |
| |
| // OrderSecret2 - Process an incoming Blockchain Order/Secret transaction from a MasterFiduciary, to generate the final secret |
| func (s *Service) OrderSecret2(tx *api.BlockChainTX) (string, error) { |
| nodeID := s.NodeID() |
| reqPayload := tx.Payload |
| txHashString := hex.EncodeToString(tx.TXhash) |
| |
| // SIKE and BLS keys |
| keyseed, err := s.KeyStore.Get("seed") |
| if err != nil { |
| return "", err |
| } |
| _, sikeSK, err := identity.GenerateSIKEKeys(keyseed) |
| if err != nil { |
| return "", err |
| } |
| _, blsSK, err := identity.GenerateBLSKeys(keyseed) |
| if err != nil { |
| return "", err |
| } |
| |
| remoteIDDoc, err := common.RetrieveIDDoc(s.Tendermint, s.MasterFiduciaryNodeID()) |
| if err != nil { |
| return "", err |
| } |
| |
| //Decode the Order from the supplied TX |
| order := &documents.OrderDoc{} |
| err = documents.DecodeOrderDocument(reqPayload, txHashString, order, sikeSK, nodeID, remoteIDDoc.BLSPublicKey) |
| if err != nil { |
| fmt.Println("ERROR DEcode Order:", err) |
| return "", err |
| } |
| |
| if order.BeneficiaryCID != nodeID { |
| return "", errors.New("Invalid Processor") |
| } |
| |
| finalPrivateKey, finalPublicKey, extension, err := s.Plugin.ProduceFinalSecret(keyseed, sikeSK, order, order, nodeID) |
| if err != nil { |
| return "", err |
| } |
| |
| //TODO: Do something with the Final Private, which should only be visible to the Beneficiary |
| //For now, we will put it in a TX and broadcast with only the Beneficiary as Recipient |
| //The Processor for the TX is 'dump' - So the Beneficiary will pick up the TX and display |
| //its contents. |
| |
| if order.OrderPart4.Extension == nil { |
| order.OrderPart4.Extension = make(map[string]string) |
| } |
| for key, value := range extension { |
| order.OrderPart4.Extension[key] = value |
| } |
| order.OrderPart4.Extension["FinalPrivateKey"] = finalPrivateKey |
| order.OrderPart4.Extension["FinalPublicKey"] = finalPublicKey |
| |
| //Output Only to self for autoviewing |
| recipientList, err := common.BuildRecipientList(s.Tendermint, nodeID) |
| if err != nil { |
| return "", err |
| } |
| |
| //Create a new Transaction payload and TX |
| tx, txID, err := common.CreateOrderTX(nodeID, api.TXOrderSecretResponse, s.Store, blsSK, order, recipientList, nodeID) |
| s.Logger.Debug("Created new %v Tx: %v", api.TXOrderSecretResponse, txID) |
| |
| return s.Tendermint.PostTx(tx) |
| } |