base 0 commit

LICENSE

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+MIT License
+
+Copyright (c) 2023 SmartContract
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# tdh2
+A Go & JavaScript implementation of the TDH2 protocol from [Securing Threshold Cryptosystems against Chosen Ciphertext Attack](https://www.shoup.net/papers/thresh1.pdf) by Shoup & Gennaro.
+
+**This is untested alpha code. Do not rely on it for any non-experimental use cases!**

go/go.work

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+go 1.19
+
+use (
+	./ocr2/decryptionplugin
+	./tdh2
+)

go/go.work.sum

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+filippo.io/edwards25519 v1.0.0-rc.1/go.mod h1:N1IkdkCkiLB6tki+MYJoSx2JTY9NUlxZE7eHn5EwJns=
+github.com/gtank/ristretto255 v0.1.3-0.20210930101514-6bb39798585c/go.mod h1:tDPFhGdt3hJWqtKwx57i9baiB1Cj0yAg22VOPUqm5vY=
+golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
+golang.org/x/net v0.0.0-20210805182204-aaa1db679c0d/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

go/ocr2/decryptionplugin/config/config.go

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+package config
+
+import (
+	"fmt"
+	"math"
+
+	"github.com/goplugin/plugin-libocr/commontypes"
+	"google.golang.org/protobuf/proto"
+)
+
+// This config is stored in the Oracle contract (set via SetConfig()).
+// Every SetConfig() call reloads the reporting plugin (DirectRequestReportingPluginFactory.NewReportingPlugin())
+type ReportingPluginConfigWrapper struct {
+	Config *ReportingPluginConfig
+}
+
+func DecodeReportingPluginConfig(raw []byte) (*ReportingPluginConfigWrapper, error) {
+	configProto := &ReportingPluginConfig{}
+	if err := proto.Unmarshal(raw, configProto); err != nil {
+		return nil, err
+	}
+	return &ReportingPluginConfigWrapper{Config: configProto}, nil
+}
+
+func EncodeReportingPluginConfig(rpConfig *ReportingPluginConfigWrapper) ([]byte, error) {
+	return proto.Marshal(rpConfig.Config)
+}
+
+func EncodeOracleIdtoKeyShareIndex(oracleID commontypes.OracleID, keyShareIndex int) *OracleIDtoKeyShareIndex {
+	return &OracleIDtoKeyShareIndex{
+		OracleId:      uint32(oracleID),
+		KeyShareIndex: uint32(keyShareIndex),
+	}
+}
+
+func DecodeOracleIdtoKeyShareIndex(oracleIDtoKeyShareIndex *OracleIDtoKeyShareIndex) (commontypes.OracleID, int, error) {
+	if oracleIDtoKeyShareIndex.OracleId > math.MaxUint8 {
+		return 0, 0, fmt.Errorf("oracleID is larger than MAX_UINT8")
+	}
+	return commontypes.OracleID(oracleIDtoKeyShareIndex.OracleId), int(oracleIDtoKeyShareIndex.KeyShareIndex), nil
+}