The API can perform the following operations:

• Enumerating all connected smart card readers, getting reader name and state (reader type, card presence, ...)
• Reader event detection (card insertion/withdrawal, reader plug/unplug)
• Connecting to a card, disconnecting from a card
• Getting card information (label, manufacturer, model, serial number, ...)
• Getting PIN information (number of PINs, label of each PIN, status, ...)
• PIN verification, change, and unblocking
• Enumerating card objects (certificates, keys, ...)
• Getting object properties (object type, PKCS label and ID, ...)
• For certificates, getting textual representation of X.509 attributes (subject, issuer, validity period, key usages, extensions, ...)
• Checking certificate validity according to the system certificate stores configured on the client computer (and getting details about the certification path, the reasons why a certificate is not trusted, ...)
• Getting the contents of a certificate
• Performing cryptographic operations with the private keys (signature, decryption)
• Importing a certificate in the card
• Importing a PKCS#12 (certificate and key pair) in the card
• Generating a new key pair in the card
• Deleting objects from the card