package encoding import ( "errors" "fmt" "github.com/tendermint/tendermint/crypto" "github.com/tendermint/tendermint/crypto/ed25519" pc "github.com/tendermint/tendermint/proto/tendermint/crypto" ) // PubKeyToProto takes crypto.PubKey and transforms it to a protobuf Pubkey func PubKeyToProto(k crypto.PubKey) (pc.PublicKey, error) { var kp pc.PublicKey switch k := k.(type) { case ed25519.PubKey: kp = pc.PublicKey{ Sum: &pc.PublicKey_Ed25519{ Ed25519: 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 pc.PublicKey) (crypto.PubKey, error) { switch k := k.Sum.(type) { case *pc.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 default: return nil, fmt.Errorf("fromproto: key type %v is not supported", k) } } // PrivKeyToProto takes crypto.PrivKey and transforms it to a protobuf PrivKey func PrivKeyToProto(k crypto.PrivKey) (pc.PrivateKey, error) { var kp pc.PrivateKey switch k := k.(type) { case ed25519.PrivKey: kp = pc.PrivateKey{ Sum: &pc.PrivateKey_Ed25519{ Ed25519: k, }, } default: return kp, errors.New("toproto: key type is not supported") } return kp, nil } // PrivKeyFromProto takes a protobuf PrivateKey and transforms it to a crypto.PrivKey func PrivKeyFromProto(k pc.PrivateKey) (crypto.PrivKey, error) { switch k := k.Sum.(type) { case *pc.PrivateKey_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.PrivKey, ed25519.PrivateKeySize) copy(pk, k.Ed25519) return pk, nil default: return nil, errors.New("fromproto: key type not supported") } }