Ejemplo n.º 1
0
// Get Encrypted Public Key from database.
func GetPubkey(log chan string, addrHash objects.Hash) *objects.EncryptedPubkey {
	mutex.Lock()
	defer mutex.Unlock()

	hash := addrHash.GetBytes()

	if hashList == nil || dbConn == nil {
		return nil
	}
	if hashList[string(hash)] != PUBKEY {
		return nil
	}

	for s, err := dbConn.Query("SELECT payload FROM pubkey WHERE hash=?", hash); err == nil; err = s.Next() {
		var payload []byte
		s.Scan(&payload) // Assigns 1st column to rowid, the rest to row
		pub := new(objects.EncryptedPubkey)
		pub.AddrHash = addrHash
		copy(pub.IV[:], payload[:16])
		pub.Payload = payload[16:]
		return pub
	}
	// Not Found
	return nil
}
Ejemplo n.º 2
0
func checkPubkey(config *api.ApiConfig, addrHash objects.Hash) []byte {

	// First check local DB
	detail, err := localdb.GetAddressDetail(addrHash)
	if err != nil {
		// If not in database, won't be able to decrypt anyway!
		return nil
	}
	if len(detail.Pubkey) > 0 {
		if db.Contains(addrHash) != db.PUBKEY {
			enc := new(objects.EncryptedPubkey)

			enc.IV, enc.Payload, _ = encryption.SymmetricEncrypt(detail.Address, string(detail.Pubkey))
			enc.AddrHash = objects.MakeHash(detail.Address)

			config.RecvQueue <- *objects.MakeFrame(objects.PUBKEY, objects.BROADCAST, enc)
		}
		return detail.Pubkey
	}

	// If not there, check local database
	if db.Contains(addrHash) == db.PUBKEY {
		enc := db.GetPubkey(config.Log, addrHash)

		pubkey := encryption.SymmetricDecrypt(enc.IV, detail.Address, enc.Payload)
		pubkey = pubkey[:65]

		// Check public Key
		x, y := encryption.UnmarshalPubkey(pubkey)
		if x == nil {
			config.Log <- "Decrypted Public Key Invalid"
			return nil
		}

		address2 := encryption.GetAddress(config.Log, x, y)
		if string(detail.Address) != string(address2) {
			config.Log <- "Decrypted Public Key doesn't match provided address!"
			return nil
		}

		detail.Pubkey = pubkey
		err := localdb.AddUpdateAddress(detail)
		if err != nil {
			config.Log <- "Error adding pubkey to local database!"
			return nil
		}

		return pubkey
	}

	// If not there, send a pubkey request
	config.RecvQueue <- *objects.MakeFrame(objects.PUBKEY_REQUEST, objects.BROADCAST, &addrHash)
	return nil
}
Ejemplo n.º 3
0
func (service *EMPService) CreateAddress(r *http.Request, args *NilParam, reply *objects.AddressDetail) error {
	if !basicAuth(service.Config, r) {
		service.Config.Log <- fmt.Sprintf("Unauthorized RPC Request from: %s", r.RemoteAddr)
		return errors.New("Unauthorized")
	}

	// Create Address

	priv, x, y := encryption.CreateKey(service.Config.Log)
	reply.Privkey = priv
	if x == nil {
		return errors.New("Key Pair Generation Error")
	}

	reply.Pubkey = encryption.MarshalPubkey(x, y)

	reply.IsRegistered = true

	reply.Address = encryption.GetAddress(service.Config.Log, x, y)

	if reply.Address == nil {
		return errors.New("Could not create address, function returned nil.")
	}

	reply.String = encryption.AddressToString(reply.Address)

	// Add Address to Database
	err := localdb.AddUpdateAddress(reply)
	if err != nil {
		service.Config.Log <- fmt.Sprintf("Error Adding Address: ", err)
		return err
	}

	// Send Pubkey to Network
	encPub := new(objects.EncryptedPubkey)

	encPub.AddrHash = objects.MakeHash(reply.Address)

	encPub.IV, encPub.Payload, err = encryption.SymmetricEncrypt(reply.Address, string(reply.Pubkey))
	if err != nil {
		service.Config.Log <- fmt.Sprintf("Error Encrypting Pubkey: ", err)
		return nil
	}

	// Record Pubkey for Network
	service.Config.RecvQueue <- *objects.MakeFrame(objects.PUBKEY, objects.BROADCAST, encPub)
	return nil
}