System and method for indicating entry of personal identification number

1. A system to indicate to a user to enter a personal identification number (PIN), said system comprising:

a secure card reader communicatively coupled to a commercial off the shelf (COTS) device via either a connection or a network;

an application store, a terminal management server (TMS) and one or more devices other than the COTS device are communicatively coupled to the COTS device via the network; and

wherein the application store receives an uploaded payment application from a vendor, and one or more portions of the uploaded payment application are encrypted,

wherein the TMS provides a decryption key to the COTS device via the network for decryption of the one or more portions of the payment application, after the uploaded payment application is downloaded, authenticated and authorized for installation on the COTS device,

wherein the payment application is installed on the COTS device, and

the installed payment application transmits one or more prompts to the one or more devices other than the COTS device via at least one of the network and the connection, further wherein

the transmission of the one or more prompts is based on a set of signals received from the secure card reader after a payment card is received at the secure card reader, and

wherein the one or more prompts comprise at least one indication to the user to enter the PIN on a display of the COTS device.

2. A method to indicate to a user to enter a personal identification number (PIN), said method comprising:

uploading a payment application to an application store for downloading by a commercial off the shelf (COTS) device, wherein one or more portions of the application are encrypted;

providing a terminal management server (TMS) to

authenticate the payment application after downloading by the COTS device,

authorize the COTS device to install and run the downloaded application, and

send a decryption key to the COTS device to decrypt the encrypted one or more portions of the downloaded application after the authentication and authorization; and

transmitting, by the payment application running on the COTS device, one or more prompts to one or more devices other than the COTS device after a secure card reader receives a payment card,

wherein said one or more prompts comprise at least one indication to the user to enter the PIN on a display of the COTS device.

3. The system of claim 1 , wherein the at least one indication comprises at least one of:

a visual indication;

an audio indication; and

a motion indication.

4. The system of claim 1 , wherein the one or more devices other than the COTS device comprise one or more of the secure card reader or a user device associated with the user.

5. The system of claim 1 , wherein the payment application transmits the one or more prompts after a request is received from the secure card reader for the PIN.

6. The system of claim 1 , wherein:

the payment application causes a display of a PIN pad having one or more display parameters on the display of the COTS device; and

the COTS device comprises a randomization subsystem to randomly select one or more variables related to at least one of the one or more display parameters prior to the display of the PIN pad on the display of the COTS device.

7. The system of claim 6 , wherein the one or more display parameters comprise:

a location of a keypad relative to an edge of a touchscreen,

a size of the keypad,

one or more sizes of one or more buttons within the keypad, and

one or more positions of one or more groups of the one or more buttons within the keypad.

8. The system of claim 7 , wherein the random selection of the location of the keypad is based on at least one of a width and a height of the screen.

9. The system of claim 7 , wherein the random selection of the location of the keypad is based on at least one of a horizontal gap and a vertical gap between the screen and the keypad.

10. The system of claim 7 , wherein the random selection of the size of the keypad is based on at least one of a horizontal gap and a vertical gap between the screen and the keypad.

11. The system of claim 6 , wherein the randomization subsystem performs the random selection of the one or more variables using one or more probability distributions comprising a uniform distribution and a Gaussian distribution.

12. The method of claim 2 , wherein the at least one indication comprises at least one of:

a visual indication;

an audio indication; and

a motion indication.

13. The method of claim 2 , wherein the one or more devices other than the COTS device comprise one or more of the secure card reader or a user device associated with the user.

14. The method of claim 2 , wherein the payment application transmits the one or more prompts after a request is received from the secure card reader for the PIN.

15. The method of claim 2 , further comprising:

causing, by the payment application, a display of a PIN pad having one or more display parameters on the display of the COTS device; and

randomly selecting, by a randomization subsystem of the COTS device, one or more variables related to at least one of the one or more display parameters prior to the display of the PIN pad on the display of the COTS device.

16. The method of claim 15 , wherein the one or more display parameters comprise:

a location of a keypad relative to an edge of a touchscreen,

a size of the keypad,

one or more sizes of one or more buttons within the keypad, and

one or more positions of one or more groups of the one or more buttons within the keypad.

17. The method of claim 16 , wherein the random selection of the location of the keypad is based on at least one of a width and a height of the screen.

18. The method of claim 17 wherein the random selection of the location of the keypad is based on at least one of a horizontal gap and a vertical gap between the screen and the keypad.

19. The method of claim 16 , wherein the random selection of the size of the keypad is based on at least one of a horizontal gap and a vertical gap between the screen and the keypad.

20. The method of claim 15 , further comprising:

performing, by the randomization subsystem, the random selection of the one or more variables using one or more probability distributions comprising a uniform distribution and a Gaussian distribution.