mirror of
https://github.com/FIX94/hbc.git
synced 2024-12-29 12:41:50 +01:00
36 lines
700 B
Python
36 lines
700 B
Python
|
#!/usr/bin/env python
|
||
|
|
|
||
|
|
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()
|