Low-Cost Round Encryption Method for Embedded System

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Provided by: Science & Engineering Research Support soCiety (SERSC)
Topic: Security
Format: PDF
Advanced Encryption Standard (AES) is used in many security systems for its high security. However, the high computation complexity of the round encryption of AES makes AES hard to be performed on many embedded systems with constrained resource. This paper proposes a novel round encryption method based on a 512-Byte lookup table. The experiments results show that, the AES implementation utilizing the round encryption method proposed reaches an encryption performance comparable to that of the widely used implementation with 4 1-KB lookup tables, while consumes much less storage overhead.
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