iCLASS® SIO®-Enabled (iCLASS SE®) + Proximity cards are part of HID Global's next generation secure access control platform and open ecosystem. The platform is based on Secure Identity Object™ (SIO), a new portable credential methodology from HID, and HID Global's Trusted Identity Platform® (TIP™) architecture for advanced applications, mobility and heightened security. Delivered with a Proximity interface for maximum interoperability and support in existing environments, iCLASS SE + Proximity cards feature multiple securely separated application areas are each protected by 64-bit diversified read/write keys that allow complex applications and provide for future expansion. iCLASS SE technology increases security and performance with mutual authentication, encrypted data transfer, and 64-bit diversified keys for read/write capabilities.