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Merge pull request #74 from vnxme/system-random

Use SystemRandom to ensure crossplatform compatibility
pull/71/head
elseif 1 year ago
committed by GitHub
parent
commit
f6fea00c16
No known key found for this signature in database GPG Key ID: B5690EEEBB952194
  1. 5
      mikro.py

5
mikro.py

@ -1,8 +1,7 @@
import random
import struct
from sha256 import SHA256
from toyecc import AffineCurvePoint, getcurvebyname, FieldElement,ECPrivateKey,ECPublicKey,Tools
from toyecc.Random import secure_rand_int_between
MIKRO_BASE64_CHARACTER_TABLE = b'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
@ -167,7 +166,7 @@ def mikro_kcdsa_sign(data:bytes,private_key:bytes)->bytes:
private_key:ECPrivateKey = ECPrivateKey(Tools.bytestoint_le(private_key), curve)
public_key:ECPublicKey = private_key.pubkey
while True:
nonce_secret = secure_rand_int_between(1, curve.n - 1)
nonce_secret = random.SystemRandom().randint(1, curve.n - 1)
nonce_point = nonce_secret * curve.G
nonce = int(nonce_point.x) % curve.n
nonce_hash = mikro_sha256(Tools.inttobytes_le(nonce,32))

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