xmrkeygen/main.go at master · modood/xmrkeygen

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package main
	"crypto/rand"
	"encoding/binary"
	"encoding/hex"
	"hash/crc32"
	"github.com/paxos-bankchain/moneroutil"
	"golang.org/x/crypto/sha3"
// Key consists of a ed25519 256-bit SpendKey and a ViewKey.
// In order to make the mnemonic seeds work, ViewKey is actually derived from
// SpendKey with Keccak256, also leading to SpendKey serving as the seed.
type Key struct {
	spendKey, viewKey *[32]byte
// NewKey construsts a Key with random seed.
func NewKey() *Key {
	seed := new([32]byte)
	rand.Read(seed[:])
	k := &Key{new([32]byte), new([32]byte)}
	// The seed, which is actually just a representation of the Private Spend Key itself
	copy(k.spendKey[:], seed[:])
	moneroutil.ScReduce32((*moneroutil.Key)(k.spendKey))
	// The Private View Key is derived by hashing the Private Spend Key with Keccak-256
	k.viewKey = keccak256(k.spendKey[:])
	moneroutil.ScReduce32((*moneroutil.Key)(k.viewKey))
// Mnemonic encodes a key to mnemonic seeds.
func (k *Key) Mnemonic() []string {
	w := new([25]string)
	// Mnemonics convert on a ratio of 4:3 minimum: four bytes creates three words, plus one checksum word
	size := uint32(len(words))
	for i := 0; i < 32; i += 4 {
		x := binary.LittleEndian.Uint32(k.spendKey[i : i+4])
		w1 := x % size
		w2 := (x/size + w1) % size
		w3 := (x/size/size + w2) % size
		w[i/4*3] = words[w1]
		w[i/4*3+1] = words[w2]
		w[i/4*3+2] = words[w3]
	// checksum word
	h := crc32.NewIEEE()
	for _, v := range w[:24] {
		r := string([]rune(v)[:3])
		h.Write([]byte(r))
	sum := h.Sum32()
	idx := sum % 24
	w[24] = w[idx]
	return w[:]
// Address encodes public spend key and view key in base58 format.
func (k *Key) Address() string {
	// The Private Spend Key and Private View Key are sent to the ed25519 scalarmult function
	// to create their counterparts, the Public Spend Key and Public View Key
	spendPub := publicKeyFromPrivateKey(k.spendKey)
	viewPub := publicKeyFromPrivateKey(k.viewKey)
	// monero main network
	network := []byte{0x12}
	// The pair of public keys are prepended with one network byte (the number 18, 0x12, for Monero).
	// It looks like this: (network byte) + (32-byte public spend key) + (32-byte public view key).
	// These 65 bytes are hashed with Keccak-256.
	hash := keccak256(network, spendPub[:], viewPub[:])
	// The first four bytes of the hash are appended, creating a 69-byte Public Address.
	// As a last step, this 69-byte string is converted to Base58.
	// However, it's not done all at once like a Bitcoin address, but rather in 8-byte blocks.
	// This gives us eight full-sized blocks and one 5-byte block. Eight bytes converts to 11 or less Base58 characters;
	// if a particular block converts to <11 characters, the conversion pads it with "1"s (1 is 0 in Base58).
	// Likewise, the final 5-byte block can convert to 7 or less Base58 digits; the conversion will ensure the result is 7 digits.
	// Due to the conditional padding, the 69-byte string will always convert to 95 Base58 characters (8 * 11 + 7).
	address := moneroutil.EncodeMoneroBase58(network, spendPub[:], viewPub[:], hash[:4])
	return address
// SpendKey encodes spend key in hex format.
func (k *Key) SpendKey() string {
	return hex.EncodeToString(k.spendKey[:])
// ViewKey encodes view key in hex format.
func (k *Key) ViewKey() string {
	return hex.EncodeToString(k.viewKey[:])
func keccak256(data ...[]byte) *[32]byte {
	h := sha3.NewLegacyKeccak256()
	for _, v := range data {
		h.Write(v)
	sum := h.Sum(nil)
	sum32 := (*[32]byte)(unsafe.Pointer(&sum[0]))
	return sum32
func publicKeyFromPrivateKey(priv *[32]byte) *[32]byte {
	pub := new([32]byte)
	p := new(moneroutil.ExtendedGroupElement)
	moneroutil.GeScalarMultBase(p, (*moneroutil.Key)(priv))
	p.ToBytes((*moneroutil.Key)(pub))
	return pub
func main() {
	key := NewKey()
	fmt.Println()
	fmt.Printf("  %s %s\n", "Mnemonic Seed:     ", strings.Join(key.Mnemonic(), " "))
	fmt.Printf("  %s %s\n", "Private Spend Key: ", key.SpendKey())
	fmt.Printf("  %s %s\n", "Private View Key:  ", key.ViewKey())
	fmt.Printf("  %s %s\n", "Public Address:    ", key.Address())
	fmt.Println()
// English Mnemonic: https://github.com/monero-project/monero/blob/master/src/mnemonics/english.h
var words = &[...]string{
	"abducts",
	"ability",
	"abnormal",
	"abrasive",
	"academy",
	"acoustic",
	"acquire",
	"actress",
	"addicted",
	"adhesive",
	"adrenalin",
	"adventure",
	"against",
	"aggravate",
	"agnostic",
	"ailments",
	"aimless",
	"airport",
	"alchemy",
	"algebra",
	"alkaline",
	"already",
	"altitude",
	"amended",
	"amnesty",
	"android",
	"anecdote",
	"annoyed",
	"answers",
	"anxiety",
	"anybody",
	"apology",
	"apricot",
	"aptitude",
	"aquarium",
	"arbitrary",
	"arsenic",
	"artistic",
	"ashtray",
	"assorted",
	"athlete",
	"auctions",
	"austere",
	"awakened",
	"awesome",
	"awkward",
	"baffles",
	"bagpipe",
	"balding",
	"baptism",
	"because",
	"bemused",
	"benches",
	"berries",
	"betting",
	"bicycle",
	"bifocals",
	"biggest",
	"bimonthly",
	"binocular",
	"biology",
	"biplane",
	"biscuit",
	"biweekly",
	"blender",
	"bluntly",
	"bobsled",
	"bounced",
	"bowling",
	"boyfriend",
	"buckets",
	"building",
	"business",
	"bygones",
	"calamity",
	"cavernous",
	"ceiling",
	"certain",
	"chlorine",
	&quo
F438
t;cistern",
	"citadel",
	"civilian",
	"coexist",
	"cohesive",
	"corrode",
	"costume",
	"cottage",
	"criminal",
	"cucumber",
	"cuddled",
	"cuisine",
	"cunning",
	"cupcake",
	"cycling",
	"cylinder",
	"cynical",
	"dabbing",
	"dangerous",
	"dauntless",
	"daytime",
	"dedicated",
	"deepest",
	"degrees",
	"dehydrate",
	"dejected",
	"delayed",
	"demonstrate",
	"deodorant",
	"dewdrop",
	"dexterity",
	"dialect",
	"different",
	"diplomat",
	"directed",
	"distance",
	"dolphin",
	"domestic",
	"doorway",
	"dormant",
	"drowning",
	"duckling",
	"dullness",
	"duration",
	"dwindling",
	"dynamite",
	"dyslexic",
	"eavesdrop",
	"eccentric",
	"eclipse",
	"economics",
	"ecstatic",
	"educated",
	"efficient",
	"egotistic",
	"emotion",
	"emulate",
	"enforce",
	"enhanced",
	"enraged",
	"entrance",
	"erected",
	"erosion",
	"eskimos",
	"espionage",
	"essential",
	"eternal",
	"etiquette",
	"evaluate",
	"evenings",
	"evicted",
	"evolved",
	"examine",
	"exquisite",
	"fabrics",
	"factual",
	"fainted",
	"farming",
	"february",
	"federal",
	"females",
	"festival",
	"fetches",
	"fictional",
	"fifteen",
	"fishing",
	"fitting",
	"flippant",
	"folding",
	"foolish",
	"fountain",
	"friendly",
	"fugitive",
	"furnished",
	"fuselage",
	"gearbox",
	"gemstone",
	"general",
	"geometry",
	"gesture",
	"getting",
	"gigantic",
	"gimmick",
	"gleeful",
	"godfather",
	"goggles",
	"goldfish",
	"goodbye",
	"gorilla",
	"gourmet",
	"governing",
	"greater",
	"guarded",
	"gumball",
	"gymnast",
	"habitat",
	"hacksaw",
	"haggled",
	"hamburger",
	"happens",
	"hashing",
	"hatchet",
	"haunted",
	"haystack",
	"hectare",
	"hedgehog",
	"hemlock",
	"hesitate",
	"hexagon",
	"hickory",
	"highway",
	"himself",
	"history",
	"hitched",
	"hoisting",
	"hospital",
	"hounded",
	"hubcaps",
	"hurried",
	"husband",
	"hydrogen",
	"iceberg",
	"identity",
	"illness",
	"imagine",
	"imbalance",
	"imitate",
	"inactive",
	"inbound",
	"industrial",
	"inexact",
	"inflamed",
	"ingested",
	"initiate",
	"inkling",
	"innocent",
	"inorganic",
	"inquest",
	"inroads",
	"intended",
	"inundate",
	"inwardly",
	"irritate",
	"isolated",
	"italics",
	"itinerary",
	"jackets",
	"jamming",
	"january",
	"javelin",
	"jellyfish",
	"jeopardy",
	"jerseys",
	"jetting",
	"jittery",
	"joining",
	"journal",
	"jubilee",
	"juggled",
	"jukebox",
	"justice",
	"juvenile",
	"kangaroo",
	"kernels",
	"keyboard",
	"kickoff",
	"kidneys",
	"kitchens",
	"knapsack",
	"knowledge",
	"knuckle",
	"laboratory",
	"language",
	"launching",
	"lawsuit",
	"lectures",
	"leisure",
	"lending",
	"leopard",
	"lettuce",
	"lexicon",
	"library",
	"lifestyle",
	"likewise",
	"lipstick",
	"lobster",
	"loincloth",
	"looking",
	"lordship",
	"lottery",
	"luggage",
	"lukewarm",
	"lullaby",
	"madness",
	"magically",
	"masterful",
	"maverick",
	"maximum",
	"mechanic",
	"medicate",
	"meeting",
	"megabyte",
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