How to design secure USB-based dongles

Dhanraj Rajput, Cypress Semiconductor
EETimes (12/21/2011 11:48 AM EST)

The many advantages of USB Flash drives have led to their widespread use for data storage through every industry. However, given that these drives are highly portable, care must be taken to protect private and sensitive data from theft and accidental loss of the drives.

USB Flash drives that implement security features are generally called USB secure dongles or secure dongles. There are various ways to design a secure dongle and the best secure dongle for a specific application balances system cost with the level of security required for a particular application. This article describes techniques for designing secure dongles.

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