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Py3 compatibility of CryptMessage plugin, Rename ecies crypto function names to make it more clear

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shortcutme 2019-03-16 02:23:00 +01:00
parent 883c2851ff
commit 40569eee2e
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2 changed files with 30 additions and 27 deletions
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20
plugins/CryptMessage/CryptMessage.py
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@ -1,12 +1,15 @@
from lib.pybitcointools import bitcoin as btctools
import hashlib
import base64
import lib.pybitcointools as btctools
ecc_cache = {}
def encrypt(data, pubkey, ephemcurve=None, ciphername='aes-256-cbc'):
from lib import pyelliptic
curve, pubkey_x, pubkey_y, i = pyelliptic.ECC._decode_pubkey(pubkey)
def eciesEncrypt(data, pubkey, ephemcurve=None, ciphername='aes-256-cbc'):
import pyelliptic
pubkey_openssl = toOpensslPublickey(base64.b64decode(pubkey))
curve, pubkey_x, pubkey_y, i = pyelliptic.ECC._decode_pubkey(pubkey_openssl)
if ephemcurve is None:
ephemcurve = curve
ephem = pyelliptic.ECC(curve=ephemcurve)
@ -19,17 +22,20 @@ def encrypt(data, pubkey, ephemcurve=None, ciphername='aes-256-cbc'):
mac = pyelliptic.hmac_sha256(key_m, ciphertext)
return key_e, ciphertext + mac
def eciesDecrypt(encrypted_data, privatekey):
ecc_key = getEcc(privatekey)
return ecc_key.decrypt(base64.b64decode(encrypted_data))
def split(encrypted):
iv = encrypted[0:16]
ciphertext = encrypted[16+70:-32]
ciphertext = encrypted[16 + 70:-32]
return iv, ciphertext
def getEcc(privatekey=None):
from lib import pyelliptic
global eccs
import pyelliptic
global ecc_cache
if privatekey not in ecc_cache:
if privatekey:
publickey_bin = btctools.encode_pubkey(btctools.privtopub(privatekey), "bin")