check

Documentation

Index

• Variables
• type Check
  • func DecodeFromBytes(buf []byte) (*Check, error)
  • func (check *Check) Hash() types.Hash
  • func (check *Check) HashWithoutLock() types.Hash
  • func (check *Check) LockPubKey() ([]byte, error)
  • func (check *Check) Sender() (types.Address, error)
  • func (check *Check) Sign(prv *ecdsa.PrivateKey) error
  • func (check *Check) String() string

Variables

var (
	// ErrInvalidSig represents error on given v, r, s values
	ErrInvalidSig = errors.New("invalid transaction v, r, s values")
)

Types

type Check

type Check struct {
	Nonce    []byte
	ChainID  types.ChainID
	DueBlock uint64
	Coin     types.CoinID
	Value    *big.Int
	GasCoin  types.CoinID
	Lock     *big.Int
	V        *big.Int
	R        *big.Int
	S        *big.Int
}

Check is like an ordinary bank check. Each user of network can issue check with any amount of coins and pass it to another person. Receiver will be able to cash a check from arbitrary account.

Nonce - unique "id" of the check. Coin Symbol - symbol of coin. Value - amount of coins. GasCoin - symbol of a coin to pay fee. DueBlock - defines last block height in which the check can be used. Lock - secret to prevent hijacking. V, R, S - signature of issuer.

func DecodeFromBytes

func DecodeFromBytes(buf []byte) (*Check, error)

DecodeFromBytes decodes check from bytes

func (*Check) Hash

func (check *Check) Hash() types.Hash

Hash returns a types.Hash to be used in process of signing a Check by sender

func (*Check) HashWithoutLock

func (check *Check) HashWithoutLock() types.Hash

HashWithoutLock returns a types.Hash to be used in process of signing and checking Lock

func (*Check) LockPubKey

func (check *Check) LockPubKey() ([]byte, error)

LockPubKey returns bytes of public key, which is used for proving check's recipient rights

func (*Check) Sender

func (check *Check) Sender() (types.Address, error)

Sender returns sender's address of a Check, recovered from signature

func (*Check) Sign

func (check *Check) Sign(prv *ecdsa.PrivateKey) error

Sign signs the check with given private key, returns error

func (*Check) String

func (check *Check) String() string