CCID may refer to:
- CCID Consulting, company based in Beijing
- Card Security Code (Credit Card ID)
- Integrated Circuit Card Interface Device, in field of smart cards
- Coordinating Center for Infectious Diseases, part of the Centers for Disease Control and Prevention
- Central City Improvement District (CCID)
- Charging Circuit Interrupting Device (CCID)
 |
This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article. |
https://wn.com/CCID
CCID (protocol)
CCID (chip card interface device) protocol is a USB protocol that allows a smartcard to be connected to a computer via a card reader using a standard USB interface, without the need for each manufacturer of smartcards to provide its own reader or protocol. This allows the smartcard to be used as a security token for authentication and data encryption, such as that used in Bitlocker. Chip card interface devices come in a variety of forms. The smallest CCID form is a standard USB dongle and may contain a SIM card or Secure Digital card inside the USB dongle. Another popular device is a USB smart card reader keyboard, which in addition to being a standard PC USB keyboard, has an additional slot for accepting a smartcard.
Hardware implementation
According to the CCID specification by the USB standards work group, a CCID exchanges information through a host computer over USB by using a CCID message that consists of a 10-byte header followed by message-specific data. The standard defines fourteen commands that the host computer can use to send data and status and control information in messages. Every command requires at least one response message from the CCID.
