Research of Implementation for Hard Disk Card Encryption of AES Algorithm Based on FPGA

The scheme of encrypting and decrypting the IDE hard disk data based on FPGA and AES algorithm is presented,the core module of encryption card is expounded and designed emphatically;NiosII processor which is specially used to key management for hard disk is adopted as its method,which protects the hard data more efficiently;The result of the timing simulation verify the scheme of design for hard disk data encryption and decryption is feasible.