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add ec_p256k1

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NIIBE Yutaka
2014-02-19 14:51:09 +09:00
parent f5e8e94bf7
commit deaf340687
8 changed files with 644 additions and 326 deletions
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28
tool/calc_precompute_table_ecc.py Normal file
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@@ -0,0 +1,28 @@
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) * 0x8000000000000000L + (i & 4) * 0x40000000000000000000000000000000L + (i & 8) * 0x200000000000000000000000000000000000000000000000L
print "%064x" % n
print_nG(n)
for i in range(1,16):
n = (i & 1) + (i & 2) * 0x8000000000000000L + (i & 4) * 0x40000000000000000000000000000000L + (i & 8) * 0x200000000000000000000000000000000000000000000000L
n = n * 0x100000000L
print "%064x" % n
print_nG(n)