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https://github.com/trezor/trezor-firmware.git
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33c174491f
* remove support for HF12 and below * remove MLSAG support * clean up monero cryptography naming * get rid of "optional first argument" pattern, in favor of mandatory argument that is allowed to be None (and fix several bugs related to this feature) Co-authored-by: grdddj <jiri.musil06@seznam.cz> Co-authored-by: Martin Milata <martin@martinmilata.cz> Co-authored-by: matejcik <ja@matejcik.cz>
56 lines
1.5 KiB
Python
56 lines
1.5 KiB
Python
from typing import TYPE_CHECKING
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if TYPE_CHECKING:
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from apps.common.keychain import Keychain
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from apps.common.paths import Bip32Path
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from trezor.enums import MoneroNetworkType
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from .xmr.crypto import Scalar
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from .xmr.credentials import AccountCreds
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def get_creds(
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keychain: Keychain, address_n: Bip32Path, network_type: MoneroNetworkType
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) -> AccountCreds:
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from apps.monero.xmr import monero
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from apps.monero.xmr.credentials import AccountCreds
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node = keychain.derive(address_n)
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key_seed = node.private_key()
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spend_sec, _, view_sec, _ = monero.generate_monero_keys(key_seed)
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creds = AccountCreds.new_wallet(view_sec, spend_sec, network_type)
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return creds
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def compute_tx_key(
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spend_key_private: Scalar,
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tx_prefix_hash: bytes,
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salt: bytes,
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rand_mult_num: Scalar,
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) -> bytes:
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from apps.monero.xmr import crypto, crypto_helpers
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rand_inp = crypto.sc_add_into(None, spend_key_private, rand_mult_num)
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passwd = crypto_helpers.keccak_2hash(
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crypto_helpers.encodeint(rand_inp) + tx_prefix_hash
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)
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tx_key = crypto_helpers.compute_hmac(salt, passwd)
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return tx_key
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def compute_enc_key_host(
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view_key_private: Scalar, tx_prefix_hash: bytes
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) -> tuple[bytes, bytes]:
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from trezor.crypto import random
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from apps.monero.xmr import crypto_helpers
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salt = random.bytes(32)
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passwd = crypto_helpers.keccak_2hash(
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crypto_helpers.encodeint(view_key_private) + tx_prefix_hash
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)
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tx_key = crypto_helpers.compute_hmac(salt, passwd)
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return tx_key, salt
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