https://techsupportca.freshdesk.com/support/solutions/articles/17000110474-pin-code-setup-for-hikvision-keypad-readers-including-ds-k170hpk-
Pin Code Setup for Hikvision Keypad Readers (Including DS-K170HPK) : Hikvision Portal
pin codefor hikvisionkeypad readerssetup
https://lists.gnupg.org/pipermail/gnupg-users/2012-December/045737.html
Keypad support for PC/SC card readers?
support forkeypadpcsccard
https://sesameacs.en.made-in-china.com/product/stdRCveMSkhr/China-Waterproof-RFID-Keypad-Access-Control-IC-Reader-Built-in-13-56MHz-Em-Compatible-Card-Readers-SH3-.html
Waterproof RFID Keypad Access Control IC Reader Built in 13.56MHz /Em Compatible Card Readers (SH3)...
Waterproof RFID Keypad Access Control IC Reader Built in 13.56MHz /Em Compatible Card Readers (SH3), Find Details and Price about Access Control Em/ID Access...
https://lists.gnupg.org/pipermail/gnupg-users/2012-December/045742.html
Keypad support for PC/SC card readers?
support forkeypadpcsccard
https://lists.gnupg.org/pipermail/gnupg-users/2012-December/045735.html
Keypad support for PC/SC card readers?
support forkeypadpcsccard
https://lists.gnupg.org/pipermail/gnupg-users/2012-December/045751.html
Keypad support for PC/SC card readers?
support forkeypadpcsccard