Secret Navigation PIN in GridID

While Secret Navigation is a simple yet effective way of protecting your card, you might complain that remembering your secret path is not an easy task. The good news is that Deepnet GridID provides a unique feature that makes remembering your secret path as easy as remembering your date of birth!

To understand how it works, let's introduce a direction code system called "Clock Hour Direction".

Have you seen or heard the following driving instruction:

           "You will come to a roundabout. Enter at 6 o'clock and exit at 9 o'clock"

The Clock Hour Direction uses the clock hour position to point to 8 directions.

	12 o'clock → North (Up) 1,2 o'clock→ North East (Up Right) 3 o'clock → East (Right)        4,5 o'clock → South East (Down Right) 6 o'clock → South (Down) 7,8 o'clock → South West (Down Left) 9 o'clock → West (Left) 10,11 o'clock → North West (Up Left)

In our system, we use a single digit/letter to represent a direction. We replace 12 with 0, 10 with A and 11 with B.

0 → North (Up) 1,2 → North East (Up Right) 3 → East (Right)        4,5 → South East (Down Right) 6 → South (Down) 7,8 → South West (Down Left) 9 → West (Left) A,B → North West (Up Left)

Now, with this Clock Direction code system, we can easily transform a secret navigation path into a PIN number!

For example, your secret navigation path is:

          Up Right → Up Right → Right → Down Right

Then your PIN number is:

          1 or 2 → 1 or 2 → 3 → 4

In short, it is:

          1234

Now, the only thing you need to remember is your PIN.

The following picture illustrates how you can generate a one-time password using your PIN number, 1234.

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