mirror of
https://github.com/yggdrasil-network/yggdrasil-go.git
synced 2024-12-19 06:27:32 +00:00
8ea20cd205
This change is to display information about the key generation process. Specifically, two bits of information are now displayed * The number of threads created to search for keys, and * The time taken to generate a successful "next best" key
80 lines
1.8 KiB
Go
80 lines
1.8 KiB
Go
/*
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This file generates crypto keys.
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It prints out a new set of keys each time if finds a "better" one.
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By default, "better" means a higher NodeID (-> higher IP address).
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This is because the IP address format can compress leading 1s in the address, to increase the number of ID bits in the address.
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If run with the "-sig" flag, it generates signing keys instead.
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A "better" signing key means one with a higher TreeID.
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This only matters if it's high enough to make you the root of the tree.
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*/
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package main
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import (
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"crypto/ed25519"
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"encoding/hex"
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"fmt"
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"net"
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"runtime"
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"time"
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"github.com/yggdrasil-network/yggdrasil-go/src/address"
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)
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type keySet struct {
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priv ed25519.PrivateKey
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pub ed25519.PublicKey
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}
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func main() {
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threads := runtime.GOMAXPROCS(0)
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fmt.Println("Threads:", threads)
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start := time.Now()
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var currentBest ed25519.PublicKey
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newKeys := make(chan keySet, threads)
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for i := 0; i < threads; i++ {
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go doKeys(newKeys)
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}
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for {
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newKey := <-newKeys
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if isBetter(currentBest, newKey.pub) || len(currentBest) == 0 {
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currentBest = newKey.pub
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fmt.Println("-----", time.Since(start))
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fmt.Println("Priv:", hex.EncodeToString(newKey.priv))
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fmt.Println("Pub:", hex.EncodeToString(newKey.pub))
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addr := address.AddrForKey(newKey.pub)
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fmt.Println("IP:", net.IP(addr[:]).String())
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}
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}
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}
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func isBetter(oldPub, newPub ed25519.PublicKey) bool {
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for idx := range oldPub {
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if newPub[idx] < oldPub[idx] {
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return true
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}
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if newPub[idx] > oldPub[idx] {
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break
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}
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}
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return false
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}
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func doKeys(out chan<- keySet) {
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bestKey := make(ed25519.PublicKey, ed25519.PublicKeySize)
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for idx := range bestKey {
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bestKey[idx] = 0xff
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}
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for {
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pub, priv, err := ed25519.GenerateKey(nil)
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if err != nil {
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panic(err)
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}
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if !isBetter(bestKey, pub) {
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continue
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}
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bestKey = pub
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out <- keySet{priv, pub}
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}
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}
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