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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Multiplexers delay ns 9. The remainder of this paper is organized as follows. State of the Art in Hardware Architectures K. As there are no additional gates are needed when pipelined, therefore, no hardware complexities and glitches. Zhang X, Parhi KK. That work reports the high performance in terms of throughput and latency. Hodjat A, Verbauwhede I, A One of our previous work [ 13 ], we show that the speed of the AES processor can be maximized by optimizing the S-box and MixColumn stages. Now-a-days there are a lot of applications coming in the market where an increasing number of battery-powered embedded systems like PDAs, cell phones, networked sensors, smart cards, RFID etc.

Therefore, less switching activities ensure lower power consumption.

A Novel Byte-Substitution Architecture for the AES Cryptosystem

A real time S-Box construction using arithmetic modulo prime numbers. Architectural Realization Design—1 Design—2 Design—3 1-byte 4-byte byte 1-byte 4-byte byte 1-byte 4-byte byte Decoders Delay ns 6.


The proposed pipeline architecture of S-box shows that the throughput can be srchitecture by reducing the delay of the critical path. Citations Publications citing this paper.

The proposed architecture consists of two parts: By introducing a new composite field, the S-Box structure is also optimized. A number of techniques have been presented in the literature, which have attempted to improve the performance of the S-box byte-substitution.

The 4-to—1 multiplexer needed for S-box LUT is constructed using three 2-to—1 multiplexers. The T-box AES design is intended to have high throughput and low power usage [ 20 ]. Here the boxin takes input as the positive edge clk getting signal and generate the bit output to the boxout. Transmission gates are simply switches which can eijndael as two-to-one multiplexer as shown in Fig 4 F.

A Compact Rijndael Hardware Architecture with S-Box Optimization

This paper presents an optimized look-up table implementation of S-box. However, the critical path delay is more than twice that obtained in the proposed design. An extremely small size of 5.

All the literatures hardwage not shown in the graph because the normalized outcome of some literatures is too large compared to the proposed designs.

CiteSeerX — A Compact Rijndael Hardware Architecture with S-Box Optimization

Besides, minimizing the supply voltage apparently reduces the power dissipation in designs. The next Section will show these comparisons in graphs. Fig 7 A shows the result for S-box operation. The former approach decomposes the elements of finite field into polynomials over the subfield and performs inversion there. So the latency is 4. Good T, Benaissa M. This paper has highly influenced 71 other papers. A significant portion of the overall silicon area for implementing AES architectures is occupied by the S-box.


Tiltech [ 24 ] describes a total of eight different implementations of the AES S-box in which he grouped them into three basic categories: The most obvious implementation approach of S-box takes the form of hardware look-up tables. In one case the multiplicative inverse in GF 2 8 is realized as look-up table, while the affine transformation is computed as in hardware techniques [ 24 ].

Conference on Field Programmable Logic and Application, pp- — In the first layer, an 8 X 8 S-box is applied to each byte. The main constrain is appeared when considered the critical path versus the area-power product. Similarly, 4-to—1 multiplexers are constructed out of 2-to—1 ones.