Begin work on outbound packet flow

src/keypair.go

@@ -2,11 +2,20 @@ package main
 
 import (
 	"crypto/cipher"
+	"sync"
 )
 
 type KeyPair struct {
 	recv      cipher.AEAD
-	recvNonce NoiseNonce
+	recvNonce uint64
 	send      cipher.AEAD
-	sendNonce NoiseNonce
+	sendNonce uint64
+}
+
+type KeyPairs struct {
+	mutex      sync.RWMutex
+	current    *KeyPair
+	previous   *KeyPair
+	next       *KeyPair
+	newKeyPair chan bool
 }