CardOS 5.5 cards have a "lock-on-error" counter for secure messaging. An incompatible API attempting 3 wrong secure channel setups will permanently lock the card (requires manufacturer reset).
: Supports RSA up to 4096-bit, Elliptic Curve Cryptography (ECC) up to 521-bit, and AES up to 256-bit.
Because the Cardos API is proprietary enterprise middleware, acquiring the software requires navigating official procurement channels to ensure file integrity and licensing compliance. Where to Safely Download Cardos API V5.5
Windows 10/11, Windows Server 2019/2022, and major Linux distributions (RHEL/Ubuntu via PC/SC Lite). Cardos Api V5.5 Download
: A utility tool for administrators to initialize cards, view certificate properties, and manage on-card objects.
: Used for eID cards, employee badges, and secure document signing.
Check your current version and upgrade today: MoTechno CardOS API Important Download Information CardOS 5
Cardos API V5.5 expands stability across modern enterprise environments:
Allows secure changes to PINs or the resetting of card retry counters using a PUK. Direct Technical Specifications
If Firefox or an equivalent application cannot see the smart card, manually register the Cardos PKCS#11 library file (usually a .dll or .so file located in the installation directory) within the browser's Security Devices settings. Because the Cardos API is proprietary enterprise middleware,
When an application requests a digital signature, Cardos API V5.5 intercepts the request, prompts the user for their PIN code, sends the hash to the smart card, and retrieves the cryptographic signature without ever exposing the private key to the host computer. How to Download and Install Cardos API V5.5 Securely
Refined API structures, making integration quicker and reducing the debugging time. Why You Should Download Cardos API v5.5
The is a specialized Application Programming Interface (API) designed to facilitate seamless communication between software applications and Atos Cardos smart cards . As smart card technology becomes increasingly vital for secure authentication, digital signing, and cryptographic operations, having the correct API version is critical for developers and system administrators alike.
The Cardos API V5.5 has a wide range of applications across various industries, including:
CardOS is developed by Atos (formerly Siemens). You are looking for the "CardOS API" package.