| .. _osdp-sample: |
| |
| Open Supervised Device Protocol (OSDP) |
| ###################################### |
| |
| Open Supervised Device Protocol (OSDP) is an IEC standard (IEC 60839-11-5) |
| intended to improve interoperability among access control and security products. |
| It supports Secure Channel (SC) for encrypted and authenticated communication |
| between configured devices. |
| |
| OSDP describes the communication protocol for interfacing one or more Peripheral |
| Devices (PD) to a Control Panel (CP) over a two-wire RS-485 multi-drop serial |
| communication channel. Nevertheless, this protocol can be used to transfer |
| secure data over any stream based physical channel. Read more about `OSDP here |
| <https://libosdp.gotomain.io/>`_.. |
| |
| Although OSDP is steered towards the Access and Security industries, it can be |
| used as a general communication protocol for devices in a secure way without |
| too much resource requirements. The security is not top-notch (AES-128) but it |
| is reasonable enough, given that the alternative is no security at all. |
| |
| OSDP Supports the control of the following components on a PD: |
| - LED |
| - Buzzer |
| - Keypad |
| - Output (GPIOs) |
| - Input Control (GPIOs) |
| - Displays |
| - Device status (tamper, power, etc.,) |
| - Card Reader |
| - Fingerprint Reader |
