signature

Documentation

Overview

Messages are prepended with a HMAC SHA256 signature (the signature makes up the first 32 bytes of a signed message; the remainder is the original message in cleartext).

Index

• Constants
• func SignMessage(message, secret []byte) []byte
• type SignatureVerifier
  • func NewSignatureVerifier(logger *gosteno.Logger, sharedSecret string) SignatureVerifier

Constants

const SIGNATURE_LENGTH = 32

Functions

func SignMessage

func SignMessage(message, secret []byte) []byte

SignMessage returns a message signed with the provided secret, with the signature prepended to the original message.

Types

type SignatureVerifier

type SignatureVerifier interface {
	instrumentation.Instrumentable
	Run(inputChan <-chan []byte, outputChan chan<- []byte)
}

A SignatureVerifier is a self-instrumenting pipeline object that validates and removes signatures.

func NewSignatureVerifier

func NewSignatureVerifier(logger *gosteno.Logger, sharedSecret string) SignatureVerifier

NewSignatureVerifier returns a SignatureVerifier with the provided logger and shared signing secret.