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The Research of Encryption Method Based on the Solid State Disk

Author: WangLiang
Tutor: XuRuChu
School: Huazhong University of Science and Technology
Course: Computer Software and Theory
Keywords: Solid State Drive Data Encryption Advanced Encryption Standard algorithm Encryption engine Key Management
CLC: TP309.7
Type: Master's thesis
Year: 2011
Downloads: 23
Quote: 0
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Abstract


With the solid-state drive (Solid State Disk) widely used in the field of high-end digital user data storage security becomes an important issue . Existing data protection technology with software encryption , Trusted Platform Module (TPM) chip , the encryption card hardware encryption technology . Encryption software host resources , hardware encryption implementation costs are high , in the solid-state hard disk controller in the implementation of the encryption engine , without the need for separate hardware implementation and encryption and decryption operations transparent to the user , it is a safe and practical solution . Solid-state hard disk read and write data stream through research and analysis , according to the location of the encryption engine encrypted solid state drive design . Advanced Encryption Standard algorithm (Advanced Encryption Standard, AES) is widely used in the protection of sensitive user data as to replace data encryption algorithm (Data Encryption Standard, DES) . In order to obtain high - speed encryption engine , requires a lot of hardware logic . A speed and area of ??compromise embodiment of the AES encryption engine , pipeline technology to improve the throughput of the encryption engine ; SubBytes / InvSubBytes computing, achieved through the look-up table hardware logic to reduce the consumption of the encryption engine , and make full use of idle Block RAM Sbox and Invbox and stored in the same Block RAM to reduce the consumption of the AES encryption engine Block RAM resources . Key system, the security of the encryption engine depends on the design according to the characteristics of the hard disk read and write data , a variety of key storage applications system , the encryption engine input stream is transparent to the user , and the use of sector - level key and text The key to improve key crack difficulty . Xilinx ISE software in simulation the Xilinx FPGA xc6slx45-3fgg484 on the encryption engine , the encryption engine occupies 785 slices , clock frequency reached 232.748MHz , throughput to reach 1.986Gbits / s . Experimental results show that : the throughput of the encryption engine to meet the Serial Advanced Technology Attachment ( SATA ) 1.0 interface SSDs read and write rates encryption engine can be implemented in a solid-state drive .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > General issues > Security and confidentiality > Encryption and decryption
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