encode input

vm/payload.go

@@ -24,7 +24,7 @@ func LoadPayload(task *task.Task, projectConfig *project.Config) ([]byte, error)
 	case _pebbleProjectID.String():
 		return encodePebblePayload(task, projectConfig)
 	case _geoProjectID.String():
-		panic("not implemented")
+		return encodeGeodnetPayload(task, projectConfig)
 	default:
 		return task.Payload, nil
 	}
@@ -66,3 +66,67 @@ func encodePebblePayload(task *task.Task, projectConfig *project.Config) ([]byte
 	}
 	return witness.MarshalBinary()
 }
+
+type ProofofMovenessCircuit struct {
+	LastPayloadHash []uints.U8
+	LastTimestamp   frontend.Variable
+	LastLatitude    frontend.Variable
+	LastLongitude   frontend.Variable
+	LastSigBytes    []uints.U8
+
+	CurPayloadHash []uints.U8
+	CurTimestamp   frontend.Variable `gnark:",public"`
+	CurLatitude    frontend.Variable
+	CurLongitude   frontend.Variable
+	CurSigBytes    []uints.U8
+
+	IsMoved frontend.Variable `gnark:",public"`
+
+	PubBytes []uints.U8 `gnark:",public"`
+}
+
+func (circuit *ProofofMovenessCircuit) Define(api frontend.API) error { return nil }
+
+func encodeGeodnetPayload(task *task.Task, projectConfig *project.Config) ([]byte, error) {
+	// TODO: loaded from task
+	lastPayloadHash := []byte{}
+	lastTimestamp := 0
+	lastLatitude := uint64(3)
+	lastLongitude := uint64(51)
+	lastSig := []byte{}
+	curPayloadHash := []byte{}
+	curTimestamp := 0
+	curLatitude := uint64(12523)
+	curLongitude := uint64(10)
+	curSig := []byte{}
+	isMove := (abs(lastLatitude, curLatitude) > 10^3) || (abs(lastLongitude, curLongitude) > 10^3)
+
+	assignment := ProofofMovenessCircuit{
+		LastPayloadHash: uints.NewU8Array(lastPayloadHash[:]),
+		LastTimestamp:   lastTimestamp,
+		LastLatitude:    lastLatitude,
+		LastLongitude:   lastLongitude,
+		LastSigBytes:    uints.NewU8Array(lastSig[:]),
+
+		CurPayloadHash: uints.NewU8Array(curPayloadHash[:]),
+		CurTimestamp:   curTimestamp,
+		CurLatitude:    curLatitude,
+		CurLongitude:   curLongitude,
+		CurSigBytes:    uints.NewU8Array(curSig[:]),
+
+		IsMoved:  isMove,
+		PubBytes: uints.NewU8Array(task.DevicePubKey),
+	}
+	witness, err := frontend.NewWitness(&assignment, ecc.BN254.ScalarField())
+	if err != nil {
+		return nil, err
+	}
+	return witness.MarshalBinary()
+}
+
+func abs(a, b uint64) uint64 {
+	if a > b {
+		return a - b
+	}
+	return b - a
+}