Added bin/txt converters

2017-05-30 23:18:04 +02:00
parent 369e300e48
commit 5f396c7637
2 changed files with 44 additions and 0 deletions
--- a/bintotxt.py
+++ b/bintotxt.py
@ -0,0 +1,16 @@
+import sys
+data = file(sys.argv[1], 'rb').read()
+uid = data[0:4]
+
+def parity(x):
+    return ("{0:08b}".format(x).count('1') & 1)
+
+for idx in range(6, len(data), 9):
+    n = data[idx:idx+8]
+    p = data[idx+8]
+    nonce_string = [ "%02x" % ord(n[i])
+                      + ('  ' if int(x)^parity(ord(n[i])) else '! ')
+                      for i, x in enumerate(("{0:08b}".format(ord(p))))
+                   ]
+    print ''.join(nonce_string[:4])
+    print ''.join(nonce_string[4:])