Link to this headingKeys
Link to this headingSeed to Root Address (BIP32)
- Uses a seed to create private keys using sha512.
- Creates a way to make a tree of private keys to separate by coin, account, chain, address
Implementation:
from ecdsa import SigningKey, SECP256k1
import hashlib, base58, hmac
from struct import unpack, pack
import mnemonic
class ExtendedKey:
def __init__(self, key, chain_code, depth=0, parent_fingerprint=0, index=0):
self.key = key # Private key as bytes (32 bytes)
self.chain_code = chain_code # Chain code as bytes (32 bytes)
self.depth = depth
self.parent_fingerprint = parent_fingerprint
self.curve = SECP256k1
self.index = index
sk = SigningKey.from_string(self.key, curve=self.curve)
vk = sk.get_verifying_key()
self.pubkey = self._compress_pubkey(vk)
@classmethod
def from_seed(cls, seed):
h = hmac.new(b"Bitcoin seed", seed, hashlib.sha512).digest()
master_priv = h[:32]
chain_code = h[32:]
return cls(master_priv, chain_code)
def get_fingerprint(self):
"""Compute the fingerprint from the compressed public key."""
fingerprint = hashlib.new('ripemd160', hashlib.sha256(self.pubkey).digest()).digest()[:4]
return fingerprint # First 4 bytes
def derive_child(self, index):
"""Derive a child key at the given index."""
if index >= 0x80000000: # Hardened derivation
payload = b'\x00' + self.key
else:
payload = self.pubkey
payload += index.to_bytes(4, "big")
h = hmac.new(self.chain_code, payload, hashlib.sha512).digest()
child_priv = (int.from_bytes(self.key, 'big') + int.from_bytes(h[:32], 'big')) % SECP256k1.order
child_priv = child_priv.to_bytes(32, 'big')
chain_code = h[32:]
parent_fingerprint = self.get_fingerprint()[:4] # Only take first 4 bytes
return ExtendedKey(
child_priv,
chain_code,
depth=self.depth + 1,
parent_fingerprint=int.from_bytes(parent_fingerprint, 'big'),
index=index
)
def get_xpriv(self):
"""Serialize the private key as an extended xprv key."""
version = 0x0488ADE4 # Correct xprv version
data = pack(">I", version) + \
pack("B", self.depth) + \
self.parent_fingerprint.to_bytes(4, "big") + \
pack(">I", self.index) + \
self.chain_code + \
b"\x00" + self.key # Private key (preceded by 0x00)
return base58check_encode(data)
def get_xpub(self):
"""Serialize the public key as an extended xpub key."""
version = 0x0488B21E # Correct xpub version
sk = SigningKey.from_string(self.key, curve=self.curve)
vk = sk.get_verifying_key()
compressed_pubkey = b'\x02' + vk.to_string()[:32] # Compressed pubkey
data = pack(">I", version) + \
pack("B", self.depth) + \
self.parent_fingerprint.to_bytes(4, "big") + \
pack(">I", self.index) + \
self.chain_code + \
compressed_pubkey
return base58check_encode(data)
def _compress_pubkey(self, vk):
"""Compress public key correctly."""
x_bytes = vk.pubkey.point.x().to_bytes(32, 'big') # Get X coordinate
y_parity = vk.pubkey.point.y() & 1 # Get parity of Y coordinate
return bytes([2 + y_parity]) + x_bytes # Compressed format
def derive_from_path(master, path):
current = master
for index in path:
current = current.derive_child(index)
return current
def base58check_encode(data):
"""Apply Base58Check encoding."""
checksum = hashlib.sha256(hashlib.sha256(data).digest()).digest()
return base58.b58encode(data + checksum[:4]).decode()
def custombip32(seed):
master = ExtendedKey.from_seed(seed.encode("utf8"))
derived_key = derive_from_path(master, [0x80000000 + 44, 0x80000000, 0, 0])
print(f"xpriv[m/44'/0'/0/0]: {derived_key.get_xpriv()}")
print(f"xpub[m/44'/0'/0/0]: {derived_key.get_xpub()}")
def standardbip32(seed):
from bip32 import BIP32
bip32 = BIP32.from_seed(seed.encode("utf8"))
print(f"xpriv[m/44'/0'/0/0]: {bip32.get_xpriv_from_path("m/44'/0'/0/0")}")
print(f"xpub[m/44'/0'/0/0]: {bip32.get_xpub_from_path("m/44'/0'/0/0")}")
if __name__ == "__main__":
sample_seed = "vital lesson monkey dog monkey cloud recipe pistol balcony furnace finger soap"
mnemo = mnemonic.Mnemonic("english")
entropy = mnemo.to_entropy(sample_seed)
print("Standard Library Mnemonic:", sample_seed)
#Standard Library Mnemonic: vital lesson monkey dog monkey cloud recipe pistol balcony furnace finger soap
custombip32(sample_seed)
#xpriv[m/44'/0'/0/0]: xprvA1khVtBiesdgcGtDxhNs2vU4MML6JMN9sR7X4ZJb5oU6r4SvJayyDVCiRTsKHcbEXjUU4JRHQev633soGRbNy5ErhfvmrU5WZnHTSAXzzAs
#xpub[m/44'/0'/0/0]: xpub6Ek3uPicVFBypkxh4iusQ4QnuPAahp61Ee37rwiCe915irn4r8JDmHXCGjqdyNh1i6nMjM95qj6bdCmc8zTdWccBC54HEPA9SFJDEdWE5hV
print()
standardbip32(sample_seed)
#xpriv[m/44'/0'/0/0]: xprvA1khVtBiesdgcGtDxhNs2vU4MML6JMN9sR7X4ZJb5oU6r4SvJayyDVCiRTsKHcbEXjUU4JRHQev633soGRbNy5ErhfvmrU5WZnHTSAXzzAs
#xpub[m/44'/0'/0/0]: xpub6Ek3uPicVFBypkxh4iusQ4QnuPAahp61Ee37rwiCe915irn4r8JDmHXCGjqdyNh1i6nMjM95qj6bdCmc8zTdWccBC54HEPA9SFJDEdWE5hV
Link to this headingMnemonic seed phrase (BIP39)
- Uses a mnemonic seed phrase of 12, 18, or 24 words
- There are non-english wordlist but may not be supported by your wallet.
- Uses exactly 2048 so there is an easy mapping from a word to a 11-bit integer
- There is a checksum in the entropy so that it makes it possible to validate the key
- Seed is generated using [PBKDF2](/Crypto/Key Derivation/PBKDF2.md)
hashlib.pbkdf2_hmac("sha512", mnemonic, b"mnemonic" + passphrase, rounds=2048)
Implementation:
import hashlib
import os, mnemonic
# BIP39 wordlist (first 2048 words)
word_list = [
"abandon", "ability", "able", "about", "above", "absent", "absorb", "abstract", "absurd", "abuse", "access", "accident",
"account", "accuse", "achieve", "acid", "acoustic", "acquire", "across", "act", "action", "actor", "actress", "actual",
"adapt", "add", "addict", "address", "adjust", "admit", "adult", "advance", "advice", "aerobic", "affair", "afford",
"afraid", "again", "age", "agent", "agree", "ahead", "aim", "air", "airport", "aisle", "alarm", "album", "alcohol",
"alert", "alien", "all", "alley", "allow", "almost", "alone", "alpha", "already", "also", "alter", "always", "amateur",
"amazing", "among", "amount", "amused", "analyst", "anchor", "ancient", "anger", "angle", "angry", "animal", "ankle",
"announce", "annual", "another", "answer", "antenna", "antique", "anxiety", "any", "apart", "apology", "appear", "apple",
"approve", "april", "arch", "arctic", "area", "arena", "argue", "arm", "armed", "armor", "army", "around", "arrange",
"arrest", "arrive", "arrow", "art", "artefact", "artist", "artwork", "ask", "aspect", "assault", "asset", "assist",
"assume", "asthma", "athlete", "atom", "attack", "attend", "attitude", "attract", "auction", "audit", "august", "aunt",
"author", "auto", "autumn", "average", "avocado", "avoid", "awake", "aware", "away", "awesome", "awful", "awkward", "axis",
"baby", "bachelor", "bacon", "badge", "bag", "balance", "balcony", "ball", "bamboo", "banana", "banner", "bar", "barely",
"bargain", "barrel", "base", "basic", "basket", "battle", "beach", "bean", "beauty", "because", "become", "beef",
"before", "begin", "behave", "behind", "believe", "below", "belt", "bench", "benefit", "best", "betray", "better",
"between", "beyond", "bicycle", "bid", "bike", "bind", "biology", "bird", "birth", "bitter", "black", "blade", "blame",
"blanket", "blast", "bleak", "bless", "blind", "blood", "blossom", "blouse", "blue", "blur", "blush", "board", "boat",
"body", "boil", "bomb", "bone", "bonus", "book", "boost", "border", "boring", "borrow", "boss", "bottom", "bounce", "box",
"boy", "bracket", "brain", "brand", "brass", "brave", "bread", "breeze", "brick", "bridge", "brief", "bright", "bring",
"brisk", "broccoli", "broken", "bronze", "broom", "brother", "brown", "brush", "bubble", "buddy", "budget", "buffalo",
"build", "bulb", "bulk", "bullet", "bundle", "bunker", "burden", "burger", "burst", "bus", "business", "busy", "butter",
"buyer", "buzz", "cabbage", "cabin", "cable", "cactus", "cage", "cake", "call", "calm", "camera", "camp", "can", "canal",
"cancel", "candy", "cannon", "canoe", "canvas", "canyon", "capable", "capital", "captain", "car", "carbon", "card",
"cargo", "carpet", "carry", "cart", "case", "cash", "casino", "castle", "casual", "cat", "catalog", "catch", "category",
"cattle", "caught", "cause", "caution", "cave", "ceiling", "celery", "cement", "census", "century", "cereal", "certain",
"chair", "chalk", "champion", "change", "chaos", "chapter", "charge", "chase", "chat", "cheap", "check", "cheese", "chef",
"cherry", "chest", "chicken", "chief", "child", "chimney", "choice", "choose", "chronic", "chuckle", "chunk", "churn",
"cigar", "cinnamon", "circle", "citizen", "city", "civil", "claim", "clap", "clarify", "claw", "clay", "clean", "clerk",
"clever", "click", "client", "cliff", "climb", "clinic", "clip", "clock", "clog", "close", "cloth", "cloud", "clown",
"club", "clump", "cluster", "clutch", "coach", "coast", "coconut", "code", "coffee", "coil", "coin", "collect", "color",
"column", "combine", "come", "comfort", "comic", "common", "company", "concert", "conduct", "confirm", "congress",
"connect", "consider", "control", "convince", "cook", "cool", "copper", "copy", "coral", "core", "corn", "correct",
"cost", "cotton", "couch", "country", "couple", "course", "cousin", "cover", "coyote", "crack", "cradle", "craft",
"cram", "crane", "crash", "crater", "crawl", "crazy", "cream", "credit", "creek", "crew", "cricket", "crime", "crisp",
"critic", "crop", "cross", "crouch", "crowd", "crucial", "cruel", "cruise", "crumble", "crunch", "crush", "cry",
"crystal", "cube", "culture", "cup", "cupboard", "curious", "current", "curtain", "curve", "cushion", "custom", "cute",
"cycle", "dad", "damage", "damp", "dance", "danger", "daring", "dash", "daughter", "dawn", "day", "deal", "debate",
"debris", "decade", "december", "decide", "decline", "decorate", "decrease", "deer", "defense", "define", "defy",
"degree", "delay", "deliver", "demand", "demise", "denial", "dentist", "deny", "depart", "depend", "deposit", "depth",
"deputy", "derive", "describe", "desert", "design", "desk", "despair", "destroy", "detail", "detect", "develop", "device",
"devote", "diagram", "dial", "diamond", "diary", "dice", "diesel", "diet", "differ", "digital", "dignity", "dilemma",
"dinner", "dinosaur", "direct", "dirt", "disagree", "discover", "disease", "dish", "dismiss", "disorder", "display",
"distance", "divert", "divide", "divorce", "dizzy", "doctor", "document", "dog", "doll", "dolphin", "domain", "donate",
"donkey", "donor", "door", "dose", "double", "dove", "draft", "dragon", "drama", "drastic", "draw", "dream", "dress",
"drift", "drill", "drink", "drip", "drive", "drop", "drum", "dry", "duck", "dumb", "dune", "during", "dust", "dutch",
"duty", "dwarf", "dynamic", "eager", "eagle", "early", "earn", "earth", "easily", "east", "easy", "echo", "ecology",
"economy", "edge", "edit", "educate", "effort", "egg", "eight", "either", "elbow", "elder", "electric", "elegant",
"element", "elephant", "elevator", "elite", "else", "embark", "embody", "embrace", "emerge", "emotion", "employ",
"empower", "empty", "enable", "enact", "end", "endless", "endorse", "enemy", "energy", "enforce", "engage", "engine",
"enhance", "enjoy", "enlist", "enough", "enrich", "enroll", "ensure", "enter", "entire", "entry", "envelope", "episode",
"equal", "equip", "era", "erase", "erode", "erosion", "error", "erupt", "escape", "essay", "essence", "estate", "eternal",
"ethics", "evidence", "evil", "evoke", "evolve", "exact", "example", "excess", "exchange", "excite", "exclude", "excuse",
"execute", "exercise", "exhaust", "exhibit", "exile", "exist", "exit", "exotic", "expand", "expect", "expire", "explain",
"expose", "express", "extend", "extra", "eye", "eyebrow", "fabric", "face", "faculty", "fade", "faint", "faith", "fall",
"false", "fame", "family", "famous", "fan", "fancy", "fantasy", "farm", "fashion", "fat", "fatal", "father", "fatigue",
"fault", "favorite", "feature", "february", "federal", "fee", "feed", "feel", "female", "fence", "festival", "fetch",
"fever", "few", "fiber", "fiction", "field", "figure", "file", "film", "filter", "final", "find", "fine", "finger",
"finish", "fire", "firm", "first", "fiscal", "fish", "fit", "fitness", "fix", "flag", "flame", "flash", "flat", "flavor",
"flee", "flight", "flip", "float", "flock", "floor", "flower", "fluid", "flush", "fly", "foam", "focus", "fog", "foil",
"fold", "follow", "food", "foot", "force", "forest", "forget", "fork", "fortune", "forum", "forward", "fossil", "foster",
"found", "fox", "fragile", "frame", "frequent", "fresh", "friend", "fringe", "frog", "front", "frost", "frown", "frozen",
"fruit", "fuel", "fun", "funny", "furnace", "fury", "future", "gadget", "gain", "galaxy", "gallery", "game", "gap",
"garage", "garbage", "garden", "garlic", "garment", "gas", "gasp", "gate", "gather", "gauge", "gaze", "general", "genius",
"genre", "gentle", "genuine", "gesture", "ghost", "giant", "gift", "giggle", "ginger", "giraffe", "girl", "give", "glad",
"glance", "glare", "glass", "glide", "glimpse", "globe", "gloom", "glory", "glove", "glow", "glue", "goat", "goddess",
"gold", "good", "goose", "gorilla", "gospel", "gossip", "govern", "gown", "grab", "grace", "grain", "grant", "grape",
"grass", "gravity", "great", "green", "grid", "grief", "grit", "grocery", "group", "grow", "grunt", "guard", "guess",
"guide", "guilt", "guitar", "gun", "gym", "habit", "hair", "half", "hammer", "hamster", "hand", "happy", "harbor", "hard",
"harsh", "harvest", "hat", "have", "hawk", "hazard", "head", "health", "heart", "heavy", "hedgehog", "height", "hello",
"helmet", "help", "hen", "hero", "hidden", "high", "hill", "hint", "hip", "hire", "history", "hobby", "hockey", "hold",
"hole", "holiday", "hollow", "home", "honey", "hood", "hope", "horn", "horror", "horse", "hospital", "host", "hotel",
"hour", "hover", "hub", "huge", "human", "humble", "humor", "hundred", "hungry", "hunt", "hurdle", "hurry", "hurt",
"husband", "hybrid", "ice", "icon", "idea", "identify", "idle", "ignore", "ill", "illegal", "illness", "image", "imitate",
"immense", "immune", "impact", "impose", "improve", "impulse", "inch", "include", "income", "increase", "index", "indicate",
"indoor", "industry", "infant", "inflict", "inform", "inhale", "inherit", "initial", "inject", "injury", "inmate", "inner",
"innocent", "input", "inquiry", "insane", "insect", "inside", "inspire", "install", "intact", "interest", "into", "invest",
"invite", "involve", "iron", "island", "isolate", "issue", "item", "ivory", "jacket", "jaguar", "jar", "jazz", "jealous",
"jeans", "jelly", "jewel", "job", "join", "joke", "journey", "joy", "judge", "juice", "jump", "jungle", "junior", "junk",
"just", "kangaroo", "keen", "keep", "ketchup", "key", "kick", "kid", "kidney", "kind", "kingdom", "kiss", "kit", "kitchen",
"kite", "kitten", "kiwi", "knee", "knife", "knock", "know", "lab", "label", "labor", "ladder", "lady", "lake", "lamp",
"language", "laptop", "large", "later", "latin", "laugh", "laundry", "lava", "law", "lawn", "lawsuit", "layer", "lazy",
"leader", "leaf", "learn", "leave", "lecture", "left", "leg", "legal", "legend", "leisure", "lemon", "lend", "length",
"lens", "leopard", "lesson", "letter", "level", "liar", "liberty", "library", "license", "life", "lift", "light", "like",
"limb", "limit", "link", "lion", "liquid", "list", "little", "live", "lizard", "load", "loan", "lobster", "local", "lock",
"logic", "lonely", "long", "loop", "lottery", "loud", "lounge", "love", "loyal", "lucky", "luggage", "lumber", "lunar",
"lunch", "luxury", "lyrics", "machine", "mad", "magic", "magnet", "maid", "mail", "main", "major", "make", "mammal", "man",
"manage", "mandate", "mango", "mansion", "manual", "maple", "marble", "march", "margin", "marine", "market", "marriage",
"mask", "mass", "master", "match", "material", "math", "matrix", "matter", "maximum", "maze", "meadow", "mean", "measure",
"meat", "mechanic", "medal", "media", "melody", "melt", "member", "memory", "mention", "menu", "mercy", "merge", "merit",
"merry", "mesh", "message", "metal", "method", "middle", "midnight", "milk", "million", "mimic", "mind", "minimum",
"minor", "minute", "miracle", "mirror", "misery", "miss", "mistake", "mix", "mixed", "mixture", "mobile", "model",
"modify", "mom", "moment", "monitor", "monkey", "monster", "month", "moon", "moral", "more", "morning", "mosquito",
"mother", "motion", "motor", "mountain", "mouse", "move", "movie", "much", "muffin", "mule", "multiply", "muscle",
"museum", "mushroom", "music", "must", "mutual", "myself", "mystery", "myth", "naive", "name", "napkin", "narrow",
"nasty", "nation", "nature", "near", "neck", "need", "negative", "neglect", "neither", "nephew", "nerve", "nest", "net",
"network", "neutral", "never", "news", "next", "nice", "night", "noble", "noise", "nominee", "noodle", "normal", "north",
"nose", "notable", "note", "nothing", "notice", "novel", "now", "nuclear", "number", "nurse", "nut", "oak", "obey",
"object", "oblige", "obscure", "observe", "obtain", "obvious", "occur", "ocean", "october", "odor", "off", "offer",
"office", "often", "oil", "okay", "old", "olive", "olympic", "omit", "once", "one", "onion", "online", "only", "open",
"opera", "opinion", "oppose", "option", "orange", "orbit", "orchard", "order", "ordinary", "organ", "orient", "original",
"orphan", "ostrich", "other", "outdoor", "outer", "output", "outside", "oval", "oven", "over", "own", "owner", "oxygen",
"oyster", "ozone", "pact", "paddle", "page", "pair", "palace", "palm", "panda", "panel", "panic", "panther", "paper",
"parade", "parent", "park", "parrot", "party", "pass", "patch", "path", "patient", "patrol", "pattern", "pause", "pave",
"payment", "peace", "peanut", "pear", "peasant", "pelican", "pen", "penalty", "pencil", "people", "pepper", "perfect",
"permit", "person", "pet", "phone", "photo", "phrase", "physical", "piano", "picnic", "picture", "piece", "pig", "pigeon",
"pill", "pilot", "pink", "pioneer", "pipe", "pistol", "pitch", "pizza", "place", "planet", "plastic", "plate", "play",
"please", "pledge", "pluck", "plug", "plunge", "poem", "poet", "point", "polar", "pole", "police", "pond", "pony", "pool",
"popular", "portion", "position", "possible", "post", "potato", "pottery", "poverty", "powder", "power", "practice",
"praise", "predict", "prefer", "prepare", "present", "pretty", "prevent", "price", "pride", "primary", "print", "priority",
"prison", "private", "prize", "problem", "process", "produce", "profit", "program", "project", "promote", "proof",
"property", "prosper", "protect", "proud", "provide", "public", "pudding", "pull", "pulp", "pulse", "pumpkin", "punch",
"pupil", "puppy", "purchase", "purity", "purpose", "purse", "push", "put", "puzzle", "pyramid", "quality", "quantum",
"quarter", "question", "quick", "quit", "quiz", "quote", "rabbit", "raccoon", "race", "rack", "radar", "radio", "rail",
"rain", "raise", "rally", "ramp", "ranch", "random", "range", "rapid", "rare", "rate", "rather", "raven", "raw", "razor",
"ready", "real", "reason", "rebel", "rebuild", "recall", "receive", "recipe", "record", "recycle", "reduce", "reflect",
"reform", "refuse", "region", "regret", "regular", "reject", "relax", "release", "relief", "rely", "remain", "remember",
"remind", "remove", "render", "renew", "rent", "reopen", "repair", "repeat", "replace", "report", "require", "rescue",
"resemble", "resist", "resource", "response", "result", "retire", "retreat", "return", "reunion", "reveal", "review",
"reward", "rhythm", "rib", "ribbon", "rice", "rich", "ride", "ridge", "rifle", "right", "rigid", "ring", "riot", "ripple",
"risk", "ritual", "rival", "river", "road", "roast", "robot", "robust", "rocket", "romance", "roof", "rookie", "room",
"rose", "rotate", "rough", "round", "route", "royal", "rubber", "rude", "rug", "rule", "run", "runway", "rural", "sad",
"saddle", "sadness", "safe", "sail", "salad", "salmon", "salon", "salt", "salute", "same", "sample", "sand", "satisfy",
"satoshi", "sauce", "sausage", "save", "say", "scale", "scan", "scare", "scatter", "scene", "scheme", "school", "science",
"scissors", "scorpion", "scout", "scrap", "screen", "script", "scrub", "sea", "search", "season", "seat", "second",
"secret", "section", "security", "seed", "seek", "segment", "select", "sell", "seminar", "senior", "sense", "sentence",
"series", "service", "session", "settle", "setup", "seven", "shadow", "shaft", "shallow", "share", "shed", "shell",
"sheriff", "shield", "shift", "shine", "ship", "shiver", "shock", "shoe", "shoot", "shop", "short", "shoulder", "shove",
"shrimp", "shrug", "shuffle", "shy", "sibling", "sick", "side", "siege", "sight", "sign", "silent", "silk", "silly",
"silver", "similar", "simple", "since", "sing", "siren", "sister", "situate", "six", "size", "skate", "sketch", "ski",
"skill", "skin", "skirt", "skull", "slab", "slam", "sleep", "slender", "slice", "slide", "slight", "slim", "slogan",
"slot", "slow", "slush", "small", "smart", "smile", "smoke", "smooth", "snack", "snake", "snap", "sniff", "snow", "soap",
"soccer", "social", "sock", "soda", "soft", "solar", "soldier", "solid", "solution", "solve", "someone", "song", "soon",
"sorry", "sort", "soul", "sound", "soup", "source", "south", "space", "spare", "spatial", "spawn", "speak", "special",
"speed", "spell", "spend", "sphere", "spice", "spider", "spike", "spin", "spirit", "split", "spoil", "sponsor", "spoon",
"sport", "spot", "spray", "spread", "spring", "spy", "square", "squeeze", "squirrel", "stable", "stadium", "staff",
"stage", "stairs", "stamp", "stand", "start", "state", "stay", "steak", "steel", "stem", "step", "stereo", "stick",
"still", "sting", "stock", "stomach", "stone", "stool", "story", "stove", "strategy", "street", "strike", "strong",
"struggle", "student", "stuff", "stumble", "style", "subject", "submit", "subway", "success", "such", "sudden", "suffer",
"sugar", "suggest", "suit", "summer", "sun", "sunny", "sunset", "super", "supply", "supreme", "sure", "surface", "surge",
"surprise", "surround", "survey", "suspect", "sustain", "swallow", "swamp", "swap", "swarm", "swear", "sweet", "swift",
"swim", "swing", "switch", "sword", "symbol", "symptom", "syrup", "system", "table", "tackle", "tag", "tail", "talent",
"talk", "tank", "tape", "target", "task", "taste", "tattoo", "taxi", "teach", "team", "tell", "ten", "tenant", "tennis",
"tent", "term", "test", "text", "thank", "that", "theme", "then", "theory", "there", "they", "thing", "this", "thought",
"three", "thrive", "throw", "thumb", "thunder", "ticket", "tide", "tiger", "tilt", "timber", "time", "tiny", "tip",
"tired", "tissue", "title", "toast", "tobacco", "today", "toddler", "toe", "together", "toilet", "token", "tomato",
"tomorrow", "tone", "tongue", "tonight", "tool", "tooth", "top", "topic", "topple", "torch", "tornado", "tortoise", "toss",
"total", "tourist", "toward", "tower", "town", "toy", "track", "trade", "traffic", "tragic", "train", "transfer", "trap",
"trash", "travel", "tray", "treat", "tree", "trend", "trial", "tribe", "trick", "trigger", "trim", "trip", "trophy",
"trouble", "truck", "true", "truly", "trumpet", "trust", "truth", "try", "tube", "tuition", "tumble", "tuna", "tunnel",
"turkey", "turn", "turtle", "twelve", "twenty", "twice", "twin", "twist", "two", "type", "typical", "ugly", "umbrella",
"unable", "unaware", "uncle", "uncover", "under", "undo", "unfair", "unfold", "unhappy", "uniform", "unique", "unit",
"universe", "unknown", "unlock", "until", "unusual", "unveil", "update", "upgrade", "uphold", "upon", "upper", "upset",
"urban", "urge", "usage", "use", "used", "useful", "useless", "usual", "utility", "vacant", "vacuum", "vague", "valid",
"valley", "valve", "van", "vanish", "vapor", "various", "vast", "vault", "vehicle", "velvet", "vendor", "venture", "venue",
"verb", "verify", "version", "very", "vessel", "veteran", "viable", "vibrant", "vicious", "victory", "video", "view",
"village", "vintage", "violin", "virtual", "virus", "visa", "visit", "visual", "vital", "vivid", "vocal", "voice", "void",
"volcano", "volume", "vote", "voyage", "wage", "wagon", "wait", "walk", "wall", "walnut", "want", "warfare", "warm",
"warrior", "wash", "wasp", "waste", "water", "wave", "way", "wealth", "weapon", "wear", "weasel", "weather", "web",
"wedding", "weekend", "weird", "welcome", "west", "wet", "whale", "what", "wheat", "wheel", "when", "where", "whip",
"whisper", "wide", "width", "wife", "wild", "will", "win", "window", "wine", "wing", "wink", "winner", "winter", "wire",
"wisdom", "wise", "wish", "witness", "wolf", "woman", "wonder", "wood", "wool", "word", "work", "world", "worry", "worth",
"wrap", "wreck", "wrestle", "wrist", "write", "wrong", "yard", "year", "yellow", "you", "young", "youth", "zebra", "zero",
"zone", "zoo"]
# You can find the full BIP39 word list online
def entropy_to_mnemonic(entropy: bytes) -> str:
if len(entropy) not in [16, 20, 24, 28, 32]:
raise ValueError("Invalid entropy length")
# Calculate checksum
sha = hashlib.sha256(entropy).digest()
checksum = sha[: (len(entropy) // 16)]
# Combine entropy and checksum
combined = entropy + checksum
# Convert to binary string
binary = ''.join(f'{b:08b}' for b in combined)
# Split into chunks of 11 bits
indexes = [int(binary[i*11:(i+1)*11], 2) for i in range(len(binary)//11)]
# Map to words
mnemonic = ' '.join(word_list[idx] for idx in indexes)
return mnemonic
# Generate random entropy (e.g., 128 bits/16 bytes)
entropy = os.urandom(16)
# Your custom implementation
custom_mnemonic = entropy_to_mnemonic(entropy)
print("Custom Mnemonic: ", custom_mnemonic)
#Custom Mnemonic: episode category eight book kidney brave enable power merry heavy kit bright
# Compare with standard library
mnemo = mnemonic.Mnemonic("english")
test = mnemo.to_mnemonic(entropy)
print("Standard Library Mnemonic:", test)
#Standard Library Mnemonic: episode category eight book kidney brave enable power merry heavy kit bright
# Verify match
assert custom_mnemonic == test, "Mnemonics do not match!"
Link to this headingBIP44
- Standardizes the data used to generate the secrets for private keys by coin, account, chain, address
:
Link to this headingBIP49
- Puts together all of the above into a full mnemonic to multi-coin and account wallet