diff options
| -rwxr-xr-x | crack-otp.py | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/crack-otp.py b/crack-otp.py index ea958bd..2d27fb9 100755 --- a/crack-otp.py +++ b/crack-otp.py @@ -29,6 +29,15 @@ activation = activation[0:-1] # remove last digit -- check digit activationbytes = int(activation).to_bytes(7, byteorder='big') logging.info("Activation bytes: 0x%s", activationbytes.hex()) +# Determine the number of digits in the OTP and set the format accordingly +digitlen = len(args.OTP[0]) +if digitlen == 6: + digitformat = "dec6" +elif digitlen == 8: + digitformat = "dec8" +else: + logging.fatal("Failed to determine format of OTP.") + keys = [] timeToSearch = [] @@ -68,7 +77,7 @@ for otpTime in timeToSearch: ) # Verify whether the output is valid for the given time - otp = totp(key.hex(), hash=hashlib.sha256, t=otpTime) + otp = totp(key.hex(), hash=hashlib.sha256, t=otpTime, format=digitformat) if otp == args.OTP[0]: print("Possibe valid OTP seed found: ", key.hex()) |