mirror of
https://github.com/cwinfo/yggdrasil-go.git
synced 2024-12-23 22:45:40 +00:00
126 lines
3.2 KiB
Go
126 lines
3.2 KiB
Go
/*
|
|
|
|
This file generates crypto keys for [ansible-yggdrasil](https://github.com/jcgruenhage/ansible-yggdrasil/)
|
|
|
|
*/
|
|
package main
|
|
|
|
import (
|
|
"encoding/hex"
|
|
"flag"
|
|
"fmt"
|
|
"net"
|
|
"os"
|
|
|
|
"github.com/yggdrasil-network/yggdrasil-go/src/address"
|
|
"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
|
|
)
|
|
|
|
var numHosts = flag.Int("hosts", 1, "number of host vars to generate")
|
|
var keyTries = flag.Int("tries", 1000, "number of tries before taking the best keys")
|
|
|
|
type keySet struct {
|
|
priv []byte
|
|
pub []byte
|
|
id []byte
|
|
ip string
|
|
}
|
|
|
|
func main() {
|
|
flag.Parse()
|
|
|
|
if *numHosts > *keyTries {
|
|
println("Can't generate less keys than hosts.")
|
|
return
|
|
}
|
|
|
|
var encryptionKeys []keySet
|
|
for i := 0; i < *numHosts+1; i++ {
|
|
encryptionKeys = append(encryptionKeys, newBoxKey())
|
|
}
|
|
encryptionKeys = sortKeySetArray(encryptionKeys)
|
|
for i := 0; i < *keyTries-*numHosts-1; i++ {
|
|
encryptionKeys[0] = newBoxKey()
|
|
encryptionKeys = bubbleUpTo(encryptionKeys, 0)
|
|
}
|
|
|
|
var signatureKeys []keySet
|
|
for i := 0; i < *numHosts+1; i++ {
|
|
signatureKeys = append(signatureKeys, newSigKey())
|
|
}
|
|
signatureKeys = sortKeySetArray(signatureKeys)
|
|
for i := 0; i < *keyTries-*numHosts-1; i++ {
|
|
signatureKeys[0] = newSigKey()
|
|
signatureKeys = bubbleUpTo(signatureKeys, 0)
|
|
}
|
|
|
|
os.MkdirAll("host_vars", 0755)
|
|
|
|
for i := 1; i <= *numHosts; i++ {
|
|
os.MkdirAll(fmt.Sprintf("host_vars/%x", i), 0755)
|
|
file, err := os.Create(fmt.Sprintf("host_vars/%x/vars", i))
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer file.Close()
|
|
file.WriteString(fmt.Sprintf("yggdrasil_encryption_public_key: %v\n", hex.EncodeToString(encryptionKeys[i].pub)))
|
|
file.WriteString("yggdrasil_encryption_private_key: \"{{ vault_yggdrasil_encryption_private_key }}\"\n")
|
|
file.WriteString(fmt.Sprintf("yggdrasil_signing_public_key: %v\n", hex.EncodeToString(signatureKeys[i].pub)))
|
|
file.WriteString("yggdrasil_signing_private_key: \"{{ vault_yggdrasil_signing_private_key }}\"\n")
|
|
file.WriteString(fmt.Sprintf("ansible_host: %v\n", encryptionKeys[i].ip))
|
|
|
|
file, err = os.Create(fmt.Sprintf("host_vars/%x/vault", i))
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer file.Close()
|
|
file.WriteString(fmt.Sprintf("vault_yggdrasil_encryption_private_key: %v\n", hex.EncodeToString(encryptionKeys[i].priv)))
|
|
file.WriteString(fmt.Sprintf("vault_yggdrasil_signing_private_key: %v\n", hex.EncodeToString(signatureKeys[i].priv)))
|
|
}
|
|
}
|
|
|
|
func newBoxKey() keySet {
|
|
pub, priv := crypto.NewBoxKeys()
|
|
id := crypto.GetNodeID(pub)
|
|
ip := net.IP(address.AddrForNodeID(id)[:]).String()
|
|
return keySet{priv[:], pub[:], id[:], ip}
|
|
}
|
|
|
|
func newSigKey() keySet {
|
|
pub, priv := crypto.NewSigKeys()
|
|
id := crypto.GetTreeID(pub)
|
|
return keySet{priv[:], pub[:], id[:], ""}
|
|
}
|
|
|
|
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 sortKeySetArray(sets []keySet) []keySet {
|
|
for i := 0; i < len(sets); i++ {
|
|
sets = bubbleUpTo(sets, i)
|
|
}
|
|
return sets
|
|
}
|
|
|
|
func bubbleUpTo(sets []keySet, num int) []keySet {
|
|
for i := 0; i < len(sets)-num-1; i++ {
|
|
if isBetter(sets[i+1].id, sets[i].id) {
|
|
var tmp = sets[i]
|
|
sets[i] = sets[i+1]
|
|
sets[i+1] = tmp
|
|
} else {
|
|
break
|
|
}
|
|
}
|
|
return sets
|
|
}
|