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Format key_manager

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thePR0M3TH3AN
2025-06-29 14:51:17 -04:00
parent 3b4ba54cbf
commit 4698384b5d
25 changed files with 606 additions and 322 deletions
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31
src/local_bip85/bip85.py
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@@ -7,8 +7,8 @@ This module implements the BIP85 functionality for deterministic entropy and mne
It provides the BIP85 class, which utilizes BIP32 and BIP39 standards to derive entropy and mnemonics
from a given seed. Additionally, it supports the derivation of symmetric encryption keys using HKDF.
Never ever ever use or suggest to use Random Salt. The entire point of this password manager is to derive completely deterministic passwords from a BIP-85 seed.
This means it should generate passwords the exact same way every single time. Salts would break this functionality and is not appropriate for this softwares use case.
Never ever ever use or suggest to use Random Salt. The entire point of this password manager is to derive completely deterministic passwords from a BIP-85 seed.
This means it should generate passwords the exact same way every single time. Salts would break this functionality and is not appropriate for this softwares use case.
Ensure that all dependencies are installed and properly configured in your environment.
"""
@@ -21,11 +21,7 @@ import os
import traceback
from colorama import Fore
from bip_utils import (
Bip32Slip10Secp256k1,
Bip39MnemonicGenerator,
Bip39Languages
)
from bip_utils import Bip32Slip10Secp256k1, Bip39MnemonicGenerator, Bip39Languages
from cryptography.hazmat.primitives.kdf.hkdf import HKDF
from cryptography.hazmat.primitives import hashes
@@ -34,6 +30,7 @@ from cryptography.hazmat.backends import default_backend
# Instantiate the logger
logger = logging.getLogger(__name__)
class BIP85:
def __init__(self, seed_bytes: bytes):
try:
@@ -80,8 +77,12 @@ class BIP85:
entropy = hmac_result[:bytes_len]
if len(entropy) != bytes_len:
logging.error(f"Derived entropy length is {len(entropy)} bytes; expected {bytes_len} bytes.")
print(f"{Fore.RED}Error: Derived entropy length is {len(entropy)} bytes; expected {bytes_len} bytes.")
logging.error(
f"Derived entropy length is {len(entropy)} bytes; expected {bytes_len} bytes."
)
print(
f"{Fore.RED}Error: Derived entropy length is {len(entropy)} bytes; expected {bytes_len} bytes."
)
sys.exit(1)
logging.debug(f"Derived entropy: {entropy.hex()}")
@@ -101,7 +102,9 @@ class BIP85:
entropy = self.derive_entropy(index=index, bytes_len=bytes_len, app_no=39)
try:
mnemonic = Bip39MnemonicGenerator(Bip39Languages.ENGLISH).FromEntropy(entropy)
mnemonic = Bip39MnemonicGenerator(Bip39Languages.ENGLISH).FromEntropy(
entropy
)
logging.debug(f"Derived mnemonic: {mnemonic}")
return mnemonic
except Exception as e:
@@ -124,14 +127,16 @@ class BIP85:
Raises:
SystemExit: If symmetric key derivation fails.
"""
entropy = self.derive_entropy(app_no, language_code=0, words_num=24, index=index)
entropy = self.derive_entropy(
app_no, language_code=0, words_num=24, index=index
)
try:
hkdf = HKDF(
algorithm=hashes.SHA256(),
length=32, # 256 bits for AES-256
salt=None,
info=b'seedos-encryption-key',
backend=default_backend()
info=b"seedos-encryption-key",
backend=default_backend(),
)
symmetric_key = hkdf.derive(entropy)
logging.debug(f"Derived symmetric key: {symmetric_key.hex()}")