PACTF_2017: Authorization Of Time
Category: Points: 55 Description:
qr.png. 1489798809000. Get me in.
Big ben just hit 1.
We are originally given the Unix timestamp
1489798809000, which translates to
11/05/49179 @ 6:30pm (UTC). Impossible, let's take this as a millisecond timestamp and remove 3
0s, bringing us to
1489798809, which then translates to
03/18/2017 @ 1:00am (UTC). This makes much more sense.
In the QR code, we find out that the QR code contains an encoded
Time-based One-time Password Algorithm or
TOTP secret. Making use of the
pyotp library, I made a nice script.
Therefore, the flag is