gnuk/tool/calc_precompute_table_ecc.py
Bertrand Jacquin 81d6945081 tool: switch to python3
python2 is no longer maintained upstream
2020-01-14 14:07:55 +09:00

29 lines
864 B
Python

from ecdsa import curves, ecdsa
G = ecdsa.generator_secp256k1
# G = ecdsa.generator_256
def print_nG(n):
nG = n*G
nGx_str = "%064x" % nG.x()
nGy_str = "%064x" % nG.y()
print256(nGx_str)
print256(nGy_str)
print()
def print256(s):
print("0x%s, 0x%s, 0x%s, 0x%s," % (s[56:64], s[48:56], s[40:48], s[32:40]))
print("0x%s, 0x%s, 0x%s, 0x%s" % (s[24:32], s[16:24], s[8:16], s[0:8]))
print()
for i in range(1,16):
n = (i & 1) + (i & 2) * 0x8000000000000000 + (i & 4) * 0x40000000000000000000000000000000 + (i & 8) * 0x200000000000000000000000000000000000000000000000
print("%064x" % n)
print_nG(n)
for i in range(1,16):
n = (i & 1) + (i & 2) * 0x8000000000000000 + (i & 4) * 0x40000000000000000000000000000000 + (i & 8) * 0x200000000000000000000000000000000000000000000000
n = n * 0x100000000
print("%064x" % n)
print_nG(n)