authutils

Documentation

Overview

authutils package provides functions for all authentication and singature validation related operations

Index

• Constants
• func CheckIfTokenHasExpired(expiredBlock *big.Int) error
• func CompareWithLatestBlockNumber(blockNumberPassed *big.Int) error
• func CurrentBlock() (*big.Int, error)
• func GetSignature(message []byte, privateKey *ecdsa.PrivateKey) (signature []byte)
• func GetSignerAddressFromMessage(message, signature []byte) (signer *common.Address, err error)
• func VerifyAddress(address common.Address, otherAddress common.Address) error
• func VerifySigner(message []byte, signature []byte, signer common.Address) error

Constants

const (
	AllowedBlockChainDifference = 5
)

Functions

func CheckIfTokenHasExpired

func CheckIfTokenHasExpired(expiredBlock *big.Int) error

Check if the block number ( date on which the token was issued is not more than 1 month)

func CompareWithLatestBlockNumber

func CompareWithLatestBlockNumber(blockNumberPassed *big.Int) error

Check if the block number passed is not more +- 5 from the latest block number on chain

func CurrentBlock

func CurrentBlock() (*big.Int, error)

Get the current block number from on chain

func GetSignature

func GetSignature(message []byte, privateKey *ecdsa.PrivateKey) (signature []byte)

func GetSignerAddressFromMessage

func GetSignerAddressFromMessage(message, signature []byte) (signer *common.Address, err error)

func VerifyAddress

func VerifyAddress(address common.Address, otherAddress common.Address) error

Check if the payment address/signer passed matches to what is present in the metadata

func VerifySigner

func VerifySigner(message []byte, signature []byte, signer common.Address) error

Verify the signature done by given singer or not returns nil if signer indeed sign the message and singature proves it, if not throws an error