91 lines
2.7 KiB
Go
91 lines
2.7 KiB
Go
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// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package metainfo
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import (
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"context"
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"storj.io/common/pb"
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"storj.io/common/signing"
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"storj.io/storj/satellite/internalpb"
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)
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// SignStreamID signs the stream ID using the specified signer.
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// Signer is a satellite.
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func SignStreamID(ctx context.Context, signer signing.Signer, unsigned *internalpb.StreamID) (_ *internalpb.StreamID, err error) {
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defer mon.Task()(&ctx)(&err)
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bytes, err := EncodeStreamID(ctx, unsigned)
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if err != nil {
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return nil, Error.Wrap(err)
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}
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signed := *unsigned
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signed.SatelliteSignature, err = signer.HashAndSign(ctx, bytes)
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if err != nil {
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return nil, Error.Wrap(err)
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}
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return &signed, nil
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}
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// SignSegmentID signs the segment ID using the specified signer.
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// Signer is a satellite.
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func SignSegmentID(ctx context.Context, signer signing.Signer, unsigned *internalpb.SegmentID) (_ *internalpb.SegmentID, err error) {
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defer mon.Task()(&ctx)(&err)
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bytes, err := EncodeSegmentID(ctx, unsigned)
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if err != nil {
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return nil, Error.Wrap(err)
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}
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signed := *unsigned
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signed.SatelliteSignature, err = signer.HashAndSign(ctx, bytes)
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if err != nil {
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return nil, Error.Wrap(err)
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}
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return &signed, nil
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}
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// EncodeStreamID encodes stream ID into bytes for signing.
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func EncodeStreamID(ctx context.Context, streamID *internalpb.StreamID) (_ []byte, err error) {
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defer mon.Task()(&ctx)(&err)
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signature := streamID.SatelliteSignature
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streamID.SatelliteSignature = nil
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out, err := pb.Marshal(streamID)
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streamID.SatelliteSignature = signature
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return out, err
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}
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// EncodeSegmentID encodes segment ID into bytes for signing.
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func EncodeSegmentID(ctx context.Context, segmentID *internalpb.SegmentID) (_ []byte, err error) {
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defer mon.Task()(&ctx)(&err)
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signature := segmentID.SatelliteSignature
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segmentID.SatelliteSignature = nil
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out, err := pb.Marshal(segmentID)
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segmentID.SatelliteSignature = signature
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return out, err
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}
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// VerifyStreamID verifies that the signature inside stream ID belongs to the satellite.
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func VerifyStreamID(ctx context.Context, satellite signing.Signee, signed *internalpb.StreamID) (err error) {
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defer mon.Task()(&ctx)(&err)
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bytes, err := EncodeStreamID(ctx, signed)
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if err != nil {
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return Error.Wrap(err)
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}
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return satellite.HashAndVerifySignature(ctx, bytes, signed.SatelliteSignature)
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}
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// VerifySegmentID verifies that the signature inside segment ID belongs to the satellite.
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func VerifySegmentID(ctx context.Context, satellite signing.Signee, signed *internalpb.SegmentID) (err error) {
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defer mon.Task()(&ctx)(&err)
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bytes, err := EncodeSegmentID(ctx, signed)
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if err != nil {
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return Error.Wrap(err)
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}
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return satellite.HashAndVerifySignature(ctx, bytes, signed.SatelliteSignature)
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}
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