Bitmessage/PyBitmessage-2024-12-19
Archived
2
0
Fork 0
Code Issues 168 Pull Requests 52 Actions Packages Projects Releases 5 Wiki Activity

Refactoring crypto base changes #1806

Merged
g1itch merged 14 commits from crypto-sort into v0.6 2021-08-17 15:07:33 +02:00
Conversation 0 Commits 14 Files Changed 15 +9 -4
1 changed files with 9 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files
Showing only changes of commit c1ea75c7a3 - Show all commits

13
src/highlevelcrypto.py
View File

@ -10,17 +10,22 @@ High level cryptographic functions based on `.pyelliptic` OpenSSL bindings.
from binascii import hexlify
import pyelliptic
from bmconfigparser import BMConfigParser
from pyelliptic import OpenSSL
from pyelliptic import arithmetic as a
from bmconfigparser import BMConfigParser
__all__ = ['encrypt', 'makeCryptor', 'pointMult', 'privToPub', 'sign', 'verify']
def makeCryptor(privkey):
"""Return a private `.pyelliptic.ECC` instance"""
private_key = a.changebase(privkey, 16, 256, minlen=32)
public_key = pointMult(private_key)
privkey_bin = '\x02\xca\x00\x20' + private_key
pubkey_bin = '\x02\xca\x00\x20' + public_key[1:-32] + '\x00\x20' + public_key[-32:]
privkey_bin = b'\x02\xca\x00\x20' + private_key
pubkey_bin = (
b'\x02\xca\x00\x20' + public_key[1:-32] + b'\x00\x20' + public_key[-32:]
)
cryptor = pyelliptic.ECC(
curve='secp256k1', privkey=privkey_bin, pubkey=pubkey_bin)
return cryptor
@ -29,7 +34,7 @@ def makeCryptor(privkey):
def hexToPubkey(pubkey):
"""Convert a pubkey from hex to binary"""
pubkey_raw = a.changebase(pubkey[2:], 16, 256, minlen=64)
pubkey_bin = '\x02\xca\x00 ' + pubkey_raw[:32] + '\x00 ' + pubkey_raw[32:]
pubkey_bin = b'\x02\xca\x00 ' + pubkey_raw[:32] + b'\x00 ' + pubkey_raw[32:]
return pubkey_bin