first code/readme/license commit

misc/genkeys.go

@@ -0,0 +1,77 @@
+/*
+
+This file generates crypto keys.
+It prints out a new set of keys each time if finds a "better" one.
+By default, "better" means a higher NodeID (-> higher IP address).
+This is because the IP address format can compress leading 1s in the address, to incrase the number of ID bits in the address.
+
+If run with the "-sig" flag, it generates signing keys instead.
+A "better" signing key means one with a higher TreeID.
+This only matters if it's high enough to make you the root of the tree.
+
+*/
+package main
+
+import "encoding/hex"
+import "flag"
+import "fmt"
+import . "yggdrasil"
+
+var doSig = flag.Bool("sig", false, "generate new signing keys instead")
+
+func main() {
+  flag.Parse()
+  switch {
+    case *doSig: doSigKeys()
+    default: doBoxKeys()
+  }
+}
+
+func isBetter(oldID, newID []byte) bool {
+  for idx := range oldID {
+    if newID[idx] > oldID[idx] { return true }
+    if newID[idx] < oldID[idx] { return false }
+  }
+  return false
+}
+
+func doBoxKeys() {
+  c := Core{}
+  pub, _ := c.DEBUG_newBoxKeys()
+  bestID := c.DEBUG_getNodeID(pub)
+  for idx := range bestID {
+    bestID[idx] = 0
+  }
+  for {
+    pub, priv := c.DEBUG_newBoxKeys()
+    id := c.DEBUG_getNodeID(pub)
+    if !isBetter(bestID[:], id[:]) { continue }
+    bestID = id
+    ip := c.DEBUG_addrForNodeID(id)
+    fmt.Println("--------------------------------------------------------------------------------")
+    fmt.Println("boxPriv:", hex.EncodeToString(priv[:]))
+    fmt.Println("boxPub:", hex.EncodeToString(pub[:]))
+    fmt.Println("NodeID:", hex.EncodeToString(id[:]))
+    fmt.Println("IP:", ip)
+  }
+}
+
+func doSigKeys() {
+  c := Core{}
+  pub, _ := c.DEBUG_newSigKeys()
+  bestID := c.DEBUG_getTreeID(pub)
+  for idx := range bestID {
+    bestID[idx] = 0
+  }
+  for {
+    pub, priv := c.DEBUG_newSigKeys()
+    id := c.DEBUG_getTreeID(pub)
+    if !isBetter(bestID[:], id[:]) { continue }
+    bestID = id
+    fmt.Println("--------------------------------------------------------------------------------")
+    fmt.Println("sigPriv:", hex.EncodeToString(priv[:]))
+    fmt.Println("sigPub:", hex.EncodeToString(pub[:]))
+    fmt.Println("TreeID:", hex.EncodeToString(id[:]))
+  }
+}
+