Compact and high-speed hardware architectures and logic optimization methods for the AES algorithm Rijndael are described. Encryption and decryption data. look-up table logic or ROMs in the previous approaches, which requires a lot of hardware support. Reference [16] proposed the use of. Efficient Hardware Architecture of SEED S-box for . In order to optimize the inverse calculation, we . “A Compact Rijndael Hardware Architecture with. S- Box.

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The Free Dictionary https: The row and column values of the corresponding group are specified by the bits a 5 -a 2. They have proposed a novel pipelining arrangement over the compact composite field S-box such that both high throughput and low power are optimized. Amongst the eight, Wolkerster [ 5 ] shows less bos power product compare to others, but suffering large critical path delay. In case of hardware, on the other hand, the implementation of the S-box is directed to the desired trade-off among area, delay, and power consumption.

Fig 7 A shows the result for S-box operation.

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A comparison of the proposed designs with the state of the art substitution box implementations have been shown graphically. The first step is group selection which bo based on the a 7 and a 6 of the processed byte, which corresponds to Group 3 in this case. Group decoding delay ns 3.


Kamel D, Standaert F. Thus it limits the overall power consumption of the S-box. The selection of groups, rows, and columns is implemented using decoders. As composite field design of S-box requires more arithmetic archltecture, it simply consumes more power compared to look up table. IEEE international symposium on circuits and system, pp- — Some literatures provided good results for FPGA implementations too.

This paper focuses on the solution of this particular problem and has presented a novel technique in designing a low power, least delay and area efficient S-box for an AES processor.

S-Box – What does S-Box stand for? The Free Dictionary

The most obvious implementation approach of S-box takes the form of hardware look-up tables. Among all the three proposed architectures the simulation result that is provided architecgure is the third one.

Hongge[ 36 ] FPGA. References in periodicals archive? In order to choose one group out of four, a 2-to—4 decoder is used.

Graphical SAC analysis of [S. The area is given in gate equivalents GE and calculated as total area divided by the size of a two-input NAND with the lowest drive strength Table 2. S-Box – What does S-Box stand for? Showing of extracted citations. Table 1 Resource utilization in percentage for proposed s-box. Furthermore, Section 5 presents the results and performance analysis of proposed S-box architecture followed by comparison to other recent related works in the Section 6.


See our FAQ for additional information. Wong [ 18 ] aims to have achieved a high throughput compact AES S-box with minimal power consumption. Zhang X, Parhi KK.

A Compact Rijndael Hardware Architecture with S-Box Optimization

In this S-box, the hazard-transparent XOR gates are located after the other gates which may block the hazards. Topics Discussed in This Paper. Comparison Criterion Design—1 Design—2 Design—3 1-byte 4-byte byte 1-byte 4-byte byte 1-byte 4-byte byte Number of Iterations, m 16 4 1 16 4 1 16 4 1 Stage 1: This is significantly fast, for one state completes its byte substitution in 6 ns rather than 16 ns for the 1-byte case.

Funding Statement The authors have no support or funding to report. Tiltech [ 24 ] describes a total of eight different implementations of the AES S-box in which he grouped them into three basic categories:

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