minor changes

pkg/transactions/transaction.go

@@ -9,22 +9,22 @@ import (
 
 type Transaction struct {
 	Signature *crypto.Signature
-	Payload   *TransactionPayload
+	Body      *TransactionBody
 	Sender    crypto.PublicKey
 }
 
 // Verify verifies the signature of the transaction
 func (t *Transaction) Verify() error {
-	data, err := t.Payload.MarshalBinary()
+	data, err := t.Body.MarshalBinary()
 	if err != nil {
 		return err
 	}
 
 	return t.Sender.Verify(t.Signature, data)
 }
 
-// TransactionPayload is a generic payload type that can be used to send binary data
-type TransactionPayload struct {
+// TransactionBody is the body of a transaction that gets included in the signature
+type TransactionBody struct {
 	// Payload are the raw bytes of the payload data
 	Payload rlp.SerializedData
 
@@ -38,10 +38,10 @@ type TransactionPayload struct {
 	// Nonce is the next nonce of the sender
 	Nonce uint64
 
-	// Salt is a random number used to prevent replay attacks, as well as help guarantee uniqueness
-	Salt uint64
+	// Salt is a random value that is used to prevent replay attacks and hash collisions
+	Salt []byte
 }
 
-func (t *TransactionPayload) MarshalBinary() ([]byte, error) {
+func (t *TransactionBody) MarshalBinary() ([]byte, error) {
 	return rlp.Encode(t)
 }