Improved cookie/mac computation code

src/constants.go

@@ -7,15 +7,16 @@ import (
 /* Specification constants */
 
 const (
-	RekeyAfterMessages  = (1 << 64) - (1 << 16) - 1
-	RejectAfterMessages = (1 << 64) - (1 << 4) - 1
-	RekeyAfterTime      = time.Second * 120
-	RekeyAttemptTime    = time.Second * 90
-	RekeyTimeout        = time.Second * 5
-	RejectAfterTime     = time.Second * 180
-	KeepaliveTimeout    = time.Second * 10
-	CookieRefreshTime   = time.Second * 120
-	PaddingMultiple     = 16
+	RekeyAfterMessages     = (1 << 64) - (1 << 16) - 1
+	RejectAfterMessages    = (1 << 64) - (1 << 4) - 1
+	RekeyAfterTime         = time.Second * 120
+	RekeyAttemptTime       = time.Second * 90
+	RekeyTimeout           = time.Second * 5
+	RejectAfterTime        = time.Second * 180
+	KeepaliveTimeout       = time.Second * 10
+	CookieRefreshTime      = time.Second * 120
+	HandshakeInitationRate = time.Second / 20
+	PaddingMultiple        = 16
 )
 
 const (