CardOS API V5.5 is a professional smart card middleware developed by (now under the
brand) designed to integrate CardOS smart cards into standard IT environments. It provides the necessary interfaces for cryptographic operations like user authentication, digital signatures, and data encryption. cryptovision.com How to Obtain the Software CardOS API is a licensed product
and is not typically available as a free public download. To get the installer for version 5.5, you generally need to: Purchase a License
: Official licenses can be bought from specialized retailers like Cryptoshop Contact Your Organization
: If you use this for work, your IT department or local Atos/Eviden representative usually provides the installation package and license key. Registered Downloads
: Customers with existing maintenance contracts may be able to access updates via restricted customer portals. cryptovision.com Key Features of V5.5 Operating System Support : Compatible with Standard Interfaces : Supports the Cryptographic Token Interface standard. Microsoft CAPI/Minidriver Cardos Api V5.5 Download
: Allows seamless integration with Windows' base smart card architecture. Security & Algorithms : Supports state-of-the-art cryptography, including Elliptic Curve Cryptography (ECDSA, ECDH). Included Utilities Card Viewer
: A tool to display card properties and manage objects like certificates. PIN Management : Utility for securely changing or unblocking card PINs. cryptovision.com Compatibility CardOS API V5.5 is optimized for use with CardOS V5.x
operating systems (including version 5.5) and supports contact-based as well as contactless (NFC) interfaces. cryptovision.com for your region or looking for installation guides for a particular operating system? CardOS V5.5 - cv cryptovision GmbH
Since "CardOS" is a proprietary operating system developed by Atos (formerly Siemens), the full source code is not publicly available. However, there are several highly useful technical papers and manuals essential for developers working with this system.
Here is a breakdown of the useful documentation available for CardOS V5.5 API and Download procedures: CardOS API V5
If you are looking for software for a Cardo Packtalk or Cardo Freecom device, "V5.5" is likely a firmware version number (e.g., a Bluetooth intercom update).
Cause: V5.5 requires a strong JWT secret.
Fix: Set the environment variable CARDOS_JWT_SECRET (minimum 32 characters). Generate one via openssl rand -base64 32.
Identify the Manufacturer: CardOS is developed by Atos (formerly Siemens). You are looking for the "CardOS API" package.
Visit the Official Atos Website:
https://www.atos.net/en/products/digital-security/smart-cardsDownload the API Package:
CardOS_API_V5.4_X_X.zip or newer.Installation:
Common Issues:
| Platform | Download Link / Command |
|----------|------------------------|
| Linux (x86_64) | https://downloads.cardos.io/api/v5.5/cardos-api-linux-amd64.tar.gz |
| Windows | https://downloads.cardos.io/api/v5.5/cardos-api-windows-x64.zip |
| macOS (Apple Silicon) | https://downloads.cardos.io/api/v5.5/cardos-api-darwin-arm64.tar.gz |
| Docker Hub | docker pull cardos/api:5.5.0 |
| APT Repository | sudo add-apt-repository ppa:cardos/stable && sudo apt install cardos-api=5.5.0 |
| Source Code | git clone -b v5.5.0 https://github.com/cardosio/api.git |
Checksum Verification (Linux binary):
sha256sum cardos-api-linux-amd64.tar.gz
# Expected: a7f3b8c... (verify against the signed checksums.txt on downloads.cardos.io)