package encoding import ( "fmt" "github.com/tendermint/tendermint/crypto" "github.com/tendermint/tendermint/crypto/ed25519" "github.com/tendermint/tendermint/crypto/secp256k1" "github.com/tendermint/tendermint/crypto/sr25519" "github.com/tendermint/tendermint/libs/json" cryptoproto "github.com/tendermint/tendermint/proto/tendermint/crypto" ) func init() { json.RegisterType((*cryptoproto.PublicKey)(nil), "tendermint.crypto.PublicKey") json.RegisterType((*cryptoproto.PublicKey_Ed25519)(nil), "tendermint.crypto.PublicKey_Ed25519") json.RegisterType((*cryptoproto.PublicKey_Secp256K1)(nil), "tendermint.crypto.PublicKey_Secp256K1") } // PubKeyToProto takes crypto.PubKey and transforms it to a protobuf Pubkey func PubKeyToProto(k crypto.PubKey) (cryptoproto.PublicKey, error) { var kp cryptoproto.PublicKey switch k := k.(type) { case ed25519.PubKey: kp = cryptoproto.PublicKey{ Sum: &cryptoproto.PublicKey_Ed25519{ Ed25519: k, }, } case secp256k1.PubKey: kp = cryptoproto.PublicKey{ Sum: &cryptoproto.PublicKey_Secp256K1{ Secp256K1: k, }, } case sr25519.PubKey: kp = cryptoproto.PublicKey{ Sum: &cryptoproto.PublicKey_Sr25519{ Sr25519: k, }, } default: return kp, fmt.Errorf("toproto: key type %v is not supported", k) } return kp, nil } // PubKeyFromProto takes a protobuf Pubkey and transforms it to a crypto.Pubkey func PubKeyFromProto(k cryptoproto.PublicKey) (crypto.PubKey, error) { switch k := k.Sum.(type) { case *cryptoproto.PublicKey_Ed25519: if len(k.Ed25519) != ed25519.PubKeySize { return nil, fmt.Errorf("invalid size for PubKeyEd25519. Got %d, expected %d", len(k.Ed25519), ed25519.PubKeySize) } pk := make(ed25519.PubKey, ed25519.PubKeySize) copy(pk, k.Ed25519) return pk, nil case *cryptoproto.PublicKey_Secp256K1: if len(k.Secp256K1) != secp256k1.PubKeySize { return nil, fmt.Errorf("invalid size for PubKeySecp256k1. Got %d, expected %d", len(k.Secp256K1), secp256k1.PubKeySize) } pk := make(secp256k1.PubKey, secp256k1.PubKeySize) copy(pk, k.Secp256K1) return pk, nil case *cryptoproto.PublicKey_Sr25519: if len(k.Sr25519) != sr25519.PubKeySize { return nil, fmt.Errorf("invalid size for PubKeySr25519. Got %d, expected %d", len(k.Sr25519), sr25519.PubKeySize) } pk := make(sr25519.PubKey, sr25519.PubKeySize) copy(pk, k.Sr25519) return pk, nil default: return nil, fmt.Errorf("fromproto: key type %v is not supported", k) } }