easyhmac

Sign arbitrary payloads with HMAC in url safe base64

import "github.com/techjanitor/easyhmac"

Encode and sign message:

	easyhmac.Secret = "secret"

	// Initialize SignedMessage struct with secret
	key := easyhmac.SignedMessage{}

	// Add payload data
	key.Payload = "a cool message"
	
	// Create HMAC signature
	key.Sign()
	
	// Marshal message to JSON and encode in url-safe base64
	signedkey, err := key.Encode()
	if err != nil {
		return
	}

Decode and verify message:

	easyhmac.Secret = "secret"

	// Initialize SignedMessage struct with secret
	message := easyhmac.SignedMessage{}

	// Decode message
	err := message.Decode(ourmessage)
	if err != nil {
		return
	}

	// Verify signature, returns a bool (true if verified)
	check := message.Verify()
	if !check {
		return
	}
	
	payload = message.Payload