Therefore, any information stored on the drive should first be saved on another encrypted data carrier, where necessary. After the generation of new cryptographic keys, the old cryptographic keys and thus all data stored on the data carrier are irreversibly destroyed. The user can generate, change or destroy the cryptographic keys at any time. The cryptographic keys is also irreversibly deleted.If the number of incorrect PIN entries is exceeded, the smart card is deactivated and can no longer be used.To get an access to the data the user must have the smart card and need to know the correct PIN.The user authentication is based on the principal “having and knowing” The KOBRA Stick VS also encrypts temporary data and areas that are often ignored by encryption software. Every byte saved and each written sector on the storage device is encrypted in XTS mode, using two cryptographic keys according to the 256-Bit AES (Advanced Encryption Standard). The encryption module integrated in the safety housing carries out a complete encryption of the KOBRA Stick VS. The KOBRA Stick VS guarantees the confidentiality of data through the following security mechanisms: USB power supply or USB hub) it stays in sleep mode and all keys are deactivated.

The confidentiality of the data stored on the KOBRA Stick VS is protected against unauthorised access, for example if the data carrier is lost or stolen, or in the event of virtual or physical attacks.Īs long as the KOBRA Stick VS is not connected to a PC or with an external power supply (e.g. Kobra Stick VS VS is approved by the German Federal Information Security Authority (BSI) for government classified information up to NATO Restricted and EU Restricted.

Encrypted usb flash drive