Smart Card Minidriver Specification for Windows Base Cryptographic Service Provider (Base CSP) and Smart Card Key Storage Provider (KSP): Version 5.05

Vendors can write card minidrivers to present a consistent interface to their smart card type to the Microsoft Smart Card Base Cryptographic Service Provider (CSP) or Crypto Next Generation (CNP) Key Storage Provider (KSP) and to the Smart Card Management Interface. These card minidrivers plug in to Microsoft Windows operating system code. The functionality in a card minidriver is narrowly scoped and carefully defined so that the card-dependent code is simple to implement and easy to verify functionally. This paper provides implementation guidelines for Base CSP and KSP card minidrivers. The information applies provided in this paper applies for Windows Vista, Microsoft Windows Server 2003, and Microsoft Windows XP.