storj/pkg/auth/signing/sign.go
Egon Elbre 05d148aeb5
Storage node and upload/download protocol refactor (#1422)
refactor storage node server
refactor upload and download protocol
2019-03-18 12:55:06 +02:00

73 lines
1.7 KiB
Go

// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package signing
import (
"github.com/zeebo/errs"
"storj.io/storj/pkg/pb"
"storj.io/storj/pkg/storj"
)
// Error is the default error class for signing package.
var Error = errs.Class("signing")
// Signer is able to sign data and verify own signature belongs.
type Signer interface {
ID() storj.NodeID
HashAndSign(data []byte) ([]byte, error)
HashAndVerifySignature(data, signature []byte) error
}
// SignOrderLimit signs the order limit using the specified signer.
// Signer is a satellite.
func SignOrderLimit(satellite Signer, unsigned *pb.OrderLimit2) (*pb.OrderLimit2, error) {
bytes, err := EncodeOrderLimit(unsigned)
if err != nil {
return nil, Error.Wrap(err)
}
signed := *unsigned
signed.SatelliteSignature, err = satellite.HashAndSign(bytes)
if err != nil {
return nil, Error.Wrap(err)
}
return &signed, nil
}
// SignOrder signs the order using the specified signer.
// Signer is an uplink.
func SignOrder(uplink Signer, unsigned *pb.Order2) (*pb.Order2, error) {
bytes, err := EncodeOrder(unsigned)
if err != nil {
return nil, Error.Wrap(err)
}
signed := *unsigned
signed.UplinkSignature, err = uplink.HashAndSign(bytes)
if err != nil {
return nil, Error.Wrap(err)
}
return &signed, nil
}
// SignPieceHash signs the piece hash using the specified signer.
// Signer is either uplink or storage node.
func SignPieceHash(signer Signer, unsigned *pb.PieceHash) (*pb.PieceHash, error) {
bytes, err := EncodePieceHash(unsigned)
if err != nil {
return nil, Error.Wrap(err)
}
signed := *unsigned
signed.Signature, err = signer.HashAndSign(bytes)
if err != nil {
return nil, Error.Wrap(err)
}
return &signed, nil
}