Document Type : Review Article
Authors
University of Tabriz/Department Electrical and Computer Engineering, Tabriz
Abstract
This paper describes the implementation of a low power and high-speed encryption algorithm with high throughput for encrypting the image. Therefore, we select a highly secured symmetric key encryption algorithm AES(Advanced Encryption Standard), in order to decrease the power using retiming and glitch and operand isolation techniques in four stages, control unit based on logic gates, optimal design of multiplier blocks in mixcolumn phase and simultaneous production keys and rounds. Such procedure makes AES suitable for fast image encryption. Implementation of a 128-bit AES on FPGA of Altera Company has been done, and the results are as follows: throughput, 6.5 Gbps in 441.5 MHz and 130mw power consumption. The time of encrypting in tested image with 32*32 sizes is 1.25ms.
Keywords
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