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- package account
-
- import (
- "bytes"
- "errors"
-
- "github.com/tendermint/tendermint/Godeps/_workspace/src/github.com/tendermint/ed25519"
- "github.com/tendermint/tendermint/Godeps/_workspace/src/github.com/tendermint/ed25519/extra25519"
- "github.com/tendermint/tendermint/binary"
- . "github.com/tendermint/tendermint/common"
- )
-
- // PubKey is part of Account and Validator.
- type PubKey interface {
- IsNil() bool
- Address() []byte
- VerifyBytes(msg []byte, sig Signature) bool
- }
-
- // Types of PubKey implementations
- const (
- PubKeyTypeEd25519 = byte(0x01)
- )
-
- // for binary.readReflect
- var _ = binary.RegisterInterface(
- struct{ PubKey }{},
- binary.ConcreteType{PubKeyEd25519{}, PubKeyTypeEd25519},
- )
-
- //-------------------------------------
-
- // Implements PubKey
- type PubKeyEd25519 []byte
-
- func (pubKey PubKeyEd25519) IsNil() bool { return false }
-
- // TODO: Or should this just be BinaryRipemd160(key)? (The difference is the TypeByte.)
- func (pubKey PubKeyEd25519) Address() []byte { return binary.BinaryRipemd160(pubKey) }
-
- // TODO: Consider returning a reason for failure, or logging a runtime type mismatch.
- func (pubKey PubKeyEd25519) VerifyBytes(msg []byte, sig_ Signature) bool {
- sig, ok := sig_.(SignatureEd25519)
- if !ok {
- return false
- }
- pubKeyBytes := new([32]byte)
- copy(pubKeyBytes[:], pubKey)
- sigBytes := new([64]byte)
- copy(sigBytes[:], sig)
- return ed25519.Verify(pubKeyBytes, msg, sigBytes)
- }
-
- // For use with golang/crypto/nacl/box
- // If error, returns nil.
- func (pubKey PubKeyEd25519) ToCurve25519() *[32]byte {
- keyEd25519, keyCurve25519 := new([32]byte), new([32]byte)
- copy(keyEd25519[:], pubKey)
- ok := extra25519.PublicKeyToCurve25519(keyCurve25519, keyEd25519)
- if !ok {
- return nil
- }
- return keyCurve25519
- }
-
- func (pubKey PubKeyEd25519) ValidateBasic() error {
- if len(pubKey) != ed25519.PublicKeySize {
- return errors.New("Invalid PubKeyEd25519 key size")
- }
- return nil
- }
-
- func (pubKey PubKeyEd25519) String() string {
- return Fmt("PubKeyEd25519{%X}", []byte(pubKey))
- }
-
- // Must return the full bytes in hex.
- // Used for map keying, etc.
- func (pubKey PubKeyEd25519) KeyString() string {
- return Fmt("%X", []byte(pubKey))
- }
-
- func (pubKey PubKeyEd25519) Equals(other PubKey) bool {
- if _, ok := other.(PubKeyEd25519); ok {
- return bytes.Equal(pubKey, other.(PubKeyEd25519))
- } else {
- return false
- }
- }
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