mirror of
https://github.com/fail0verflow/hbc.git
synced 2024-11-17 23:29:21 +01:00
35 lines
710 B
Python
Executable File
35 lines
710 B
Python
Executable File
#!/usr/bin/env python3
|
|
import sys
|
|
import pywii as wii
|
|
|
|
if len(sys.argv) != 4:
|
|
print("Usage: %s keyfile.priv infile outfile"%sys.argv[0])
|
|
sys.exit(1)
|
|
|
|
if sys.argv[1] == "-":
|
|
k = sys.stdin.read()
|
|
else:
|
|
k = open(sys.argv[1],"rb").read()
|
|
|
|
if len(k) != 30:
|
|
print("Failed to read private key")
|
|
sys.exit(2)
|
|
|
|
indata = open(sys.argv[2],"rb").read()
|
|
sha = wii.SHA.new(indata).digest()
|
|
|
|
print("SHA1: %s"%sha.encode('hex'))
|
|
print()
|
|
print("Signature:")
|
|
r,s = wii.ec.generate_ecdsa(k,sha)
|
|
print("R =",r[:15].encode('hex'))
|
|
print(" ",r[15:].encode('hex'))
|
|
print("S =",s[:15].encode('hex'))
|
|
print(" ",s[15:].encode('hex'))
|
|
|
|
outdata = "SIG0" + r + s + indata
|
|
|
|
fd = open(sys.argv[3],"wb")
|
|
fd.write(outdata)
|
|
fd.close()
|