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Pure Python implementation of Mimblewimble protocol for Grin cryptocurrency

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Mimblewimble in Python

mimblewimble-py logo

We are building the first Python-based implementation of the Mimblewimble protocol for the grin cryptocurrency. At the moment it is at the most early stage of development. Heavily based on the grin++ wallet.

Usage

Generating wallets

Simplest operation is simply make a new wallet

from mimblewimble.wallet import Wallet

# instantiate the wallet
w = Wallet.initialize()

# derive the slatepack address and the recovery phrase
path = 'm/0/1/0'
slatepack_address = w.getSlatepackAddress(path=path)
recovery_phrase = w.getSeedPhrase()

# display  the output
print('Your slatepack address at the path {0} is'.format(path))
print(slatepack_address)
print()
print('Your recovery phrase is')
print(recovery_phrase)

it will respond

Your slatepack address at the path m/0/1/0 is
grin14xfltfnzfq68mc6k7xru469h2x0ejckzr7alczcjf2wml755qnuq8c0zkx

Your recovery phrase is
mammal scale present develop then tail identify movie pizza brisk entry regret match solve coffee empower double muffin curious virtual joy hen diagram vacuum

Restoring wallet from the recovery phrase

You may restore the wallet from the recovery phrase as follows

from mimblewimble.wallet import Wallet

# content of the core wallet encrypted seed file
recovery_phrase = 'sign interest obtain raw window monster jump bring nice crunch toward grunt prosper recycle sphere battle mother fold reject velvet emotion similar romance govern'

# instantiate the wallet
w = Wallet.fromSeedPhrase(recovery_phrase)

# derive the slatepack address and the recovery phrase
path = 'm/0/1/0'
slatepack_address = w.getSlatepackAddress(path=path)

# display  the output
print('Your slatepack address at the path {0} is'.format(path))
print(slatepack_address)

it will respond

Your slatepack address at the path m/0/1/0 is
grin14kgku7l5x6te3arast3p59zk4rteznq2ug6kmmypf2d6z8md76eqg3su35

Restoring wallet from the encrypted seed

Fully compatible with seed generated by the core wallet

from mimblewimble.wallet import Wallet

# content of the core wallet encrypted seed file
seed = {
    'encrypted_seed': '839773da8062af7dc51714fd98a7f9a72750e17aa54541d5317b5ea1be5c5751db85497aa630380dd984e2ecd603ae0b',
    'salt': '356f045acf2b2787',
    'nonce': 'b5a490e1c942e6a5147bb740'
}

# convert to bytes
encrypted_seed = bytes.fromhex(seed['encrypted_seed'])
nonce = bytes.fromhex(seed['nonce'])
salt = bytes.fromhex(seed['salt'])

# don't forget your password
password = 'grinventions'

# instantiate the wallet
w = Wallet(encrypted_seed=encrypted_seed, nonce=nonce, salt=salt)

# decrypt
w.unshieldWallet(password, nonce=nonce, salt=salt)

# derive the slatepack address and the recovery phrase
path = 'm/0/1/0'
slatepack_address = w.getSlatepackAddress(path=path)
recovery_phrase = w.getSeedPhrase()

# display  the output
print('Your slatepack address at the path {0} is'.format(path))
print(slatepack_address)
print()
print('Your recovery phrase is')
print(recovery_phrase)

it will respond

grin14kgku7l5x6te3arast3p59zk4rteznq2ug6kmmypf2d6z8md76eqg3su35

Your recovery phrase is
sign interest obtain raw window monster jump bring nice crunch toward grunt prosper recycle sphere battle mother fold reject velvet emotion similar romance govern

Detecting invalid password

While the master seed is being encrypted, the MAC tag digest will be verified indicating if password was correct.

from mimblewimble.wallet import Wallet

# content of the core wallet encrypted seed file
seed = {
    'encrypted_seed': '839773da8062af7dc51714fd98a7f9a72750e17aa54541d5317b5ea1be5c5751db85497aa630380dd984e2ecd603ae0b',
    'salt': '356f045acf2b2787',
    'nonce': 'b5a490e1c942e6a5147bb740'
}

# convert to bytes
encrypted_seed = bytes.fromhex(seed['encrypted_seed'])
nonce = bytes.fromhex(seed['nonce'])
salt = bytes.fromhex(seed['salt'])

# don't forget your invalid password
password = 'Lt. Col. Frank Slade'

# instantiate the wallet
w = Wallet(encrypted_seed=encrypted_seed, nonce=nonce, salt=salt)

# decrypt
valid = True
try:
    w.unshieldWallet(password, nonce=nonce, salt=salt)
except Exception as e:
    if str(e) == 'MAC check failed':
        valid = False
if valid:
    print('Password correct!')
else:
    print('Password invalid!')

it will indicate failure of verification of the MAC tag

Password invalid!

Building coinbase

from mimblewimble.wallet import Wallet

# instantiate the wallet
w = Wallet.initialize()

# pick path and amount
coinbase_path = 'm/0/1/0'
coinbase_amount = 60

kernel, output = w.createCoinbase(coinbase_amount, path=coinbase_path)

# display  the output
print('Kernel')
print(kernel.toJSON())
print('Output')
print(output.output.toJSON())

it will output something like

Kernel
{'features': {}, 'excess': '0927759d4f4fc554e148f1906166381b6c1889895c6f96c3e2e76c55c9e219848b', 'excess_sig': ''}
Output
{'features': 1, 'commit': '098dcf471cf019030c82044cee5e794b0e31d11e00567920d8e5a40103eb63071f', 'proof': '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'}

SRS transaction building

from mimblewimble.wallet import Wallet

# instantiate two wallets wallet
alice_path = 'm/0/1/0'
alice_wallet = Wallet.initialize()
alice_address = alice_wallet.getSlatepackAddress()

bob_path = 'm/0/1/0'
bob_wallet = Wallet.initialize()
bob_address = bob_wallet.getSlatepackAddress()

print('Alice: ', alice_address)
print('Bob:   ', bob_address)

# Alice makes 60 coins coinbase output
coinbase_amount = 60000000000
kernel, output = alice_wallet.createCoinbase(
    coinbase_amount, path=alice_path)

# attempts to send 30 coins to Bob
num_change_outputs = 1
amount = 30000000000
fee_base = 7000000
block_height = 99999
send_slate, secret_key, secret_nonce = alice_wallet.send(
    [output], num_change_outputs, amount, fee_base, block_height,
    path=alice_path, receiver_address=bob_address)

print()
print('send slate from Alice')
print(send_slate.toJSON())

# build the receive slate using Bob's wallet
receive_slate = bob_wallet.receive(send_slate)

print()
print('receive slate from Bob')
print(receive_slate.toJSON())

# finalize the receive slate using Alice's wallet
finalized_slate = alice_wallet.finalize(
    receive_slate, secret_key, secret_nonce, path=alice_path)

print()
print('finalized slate that Alice has')
print(finalized_slate.toJSON())

expect output of the form

Alice:  grin1rn9jvtzlffsk4dht29nqtw8ja65r749jvmcm3833kadt76dajr4qra9e6m
Bob:    grin18gxjdmmq53fpx9330atjqs8x3tc7jw6dcthe043pzrr9d2nletqsnt3pu9

send slate from Alice
{'amt': 30000000000, 'sta': 'S1', 'off': 'a18fa6bfd76257149e449bd8bd816a4ce3de8af539a794f937c1d39dc78b771e', 'fee': 322000000, 'coms': [{'c': '09ea9b319f2bbf94eb21f8e996e42fb2c2968e939bf18e8acdbd4192546df16296', 'f': 1}, {'c': '09e17a9b2eed70ef1438a449f9c89eb7a795a71c3e0f398bf5f13b6c8a814aaac0', 'p': '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'}], 'proof': {'saddr': '1ccb262c5f4a616ab6eb516605b8f2eea83f54b266f1b89e31b75abf69bd90ea', 'raddr': None, 'rsig': None}}

receive slate from Bob
{'amt': 30000000000, 'sta': 'S2', 'off': '84b02f977be855ca2a748362aa535da833a4bb7786ac7263e880f1d9b00ac3fb', 'fee': 322000000, 'coms': [{'c': '09ea9b319f2bbf94eb21f8e996e42fb2c2968e939bf18e8acdbd4192546df16296', 'f': 1}, {'c': '09e17a9b2eed70ef1438a449f9c89eb7a795a71c3e0f398bf5f13b6c8a814aaac0', 'p': '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'}, {'c': '092540d07c1dde2de274ac14f0e42d6e542851c3e7bbb0987b19354b9999800aa1', 'p': '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'}], 'proof': {'saddr': '1ccb262c5f4a616ab6eb516605b8f2eea83f54b266f1b89e31b75abf69bd90ea', 'raddr': '3a0d26ef60a4521316317f572040e68af1e93b4dc2ef97d62110c656aa7fcac1', 'rsig': '35392393ba925f976c9fee85424489a9d6116f1a1a4547d133056a39215714902d172a1ea8b3271929fdf6ae981ae7ec264095fd98300f9ced73be50644f500d00000006fc23ac0008aae8f9a55ebbc33f5b13ba1c9eadd4218a514360c4d9c10be9c9b681e8d86ccb1ccb262c5f4a616ab6eb516605b8f2eea83f54b266f1b89e31b75abf69bd90ea'}}

finalized slate that Alice has
{'amt': 30000000000, 'sta': 'S3', 'off': '84b02f977be855ca2a748362aa535da833a4bb7786ac7263e880f1d9b00ac3fb', 'fee': 322000000, 'coms': [{'c': '09ea9b319f2bbf94eb21f8e996e42fb2c2968e939bf18e8acdbd4192546df16296', 'f': 1}, {'c': '09e17a9b2eed70ef1438a449f9c89eb7a795a71c3e0f398bf5f13b6c8a814aaac0', 'p': '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'}, {'c': '092540d07c1dde2de274ac14f0e42d6e542851c3e7bbb0987b19354b9999800aa1', 'p': '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'}], 'proof': {'saddr': '1ccb262c5f4a616ab6eb516605b8f2eea83f54b266f1b89e31b75abf69bd90ea', 'raddr': '3a0d26ef60a4521316317f572040e68af1e93b4dc2ef97d62110c656aa7fcac1', 'rsig': '35392393ba925f976c9fee85424489a9d6116f1a1a4547d133056a39215714902d172a1ea8b3271929fdf6ae981ae7ec264095fd98300f9ced73be50644f500d00000006fc23ac0008aae8f9a55ebbc33f5b13ba1c9eadd4218a514360c4d9c10be9c9b681e8d86ccb1ccb262c5f4a616ab6eb516605b8f2eea83f54b266f1b89e31b75abf69bd90ea'}}

Deriving TOR addresses

You may use mimblewimble-py to convert grin address to .onion address, which is useful in checking if wallet is reachable.

from mimblewimble.helpers.tor import TorAddress
from mimblewimble.keychain import KeyChain

slatepack_address = 'grin1m3ckuft0llw97ulzmedk557twyn76wkgxartn6lpfq5xd9wcc24qnpwde5'

# ed25519 public key from slatepack address
ed25519_pk = KeyChain.slatepackAddressToED25519PublicKey(slatepack_address)

# ed25519 public key to .onion address
onion_address = TorAddress(ed25519_pk).toOnion()

assert onion_address == '3ryw4jlp77of647c3znwuu6loet62owig5dlt27bjaugnfoyykvneayd.onion'

# you can also validate the .onion address
# it will check if ed25519 public key is a valid curve point
# and also if checksum is correct, only V3 TOR addresses are supported!
TorAddress.parse(onion_address)

print(slatepack_address)
print(onion_address)

outputs

grin1m3ckuft0llw97ulzmedk557twyn76wkgxartn6lpfq5xd9wcc24qnpwde5
3ryw4jlp77of647c3znwuu6loet62owig5dlt27bjaugnfoyykvneayd.onion

you may use TOR proxy to reach foreign API listener under 3ryw4jlp77of647c3znwuu6loet62owig5dlt27bjaugnfoyykvneayd.onion to check if wallet is listening.

Expected features

  • Managing blocks
  • Managing transactions

Use-cases

  • Implement python-based wallets and nodes for grin
  • Research new protocols, quickly drafting ideas and testing them
  • Have grin codebase that anyone can easily understand and translate to other languages

Useful docs

  1. Regarding serialization/deserialization p2p protocol document

Tools

  1. Python's BIP32

Support

This project is NOT financed from the grin fund neither grin community fund. I deliverately did not request funding because of the following reasons:

  1. I am not certain how much time I will be able to dedicate to it
  2. I want this project to earn trust from the community, not have it guaranteed upfront

Anyone who wishes to support this project is welcome to donate to the following grin address

grin1vcjsgk6rltncqh7cxjywukjfrf825d8a6xk77msfuhf9ev3r55wq7l2ng4

which is my donation address, my username is @marekyggdrasil and if you want to know more about on the grin forum I am known as @renzokuken me check my website.

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Pure Python implementation of Mimblewimble protocol for Grin cryptocurrency

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