Performance Analysis of Secure Integrated Circuits using Blowfish Algorithm

Security is an essential feature of Information Communication Technology (ICT). Information has to be encrypted at the transmitter side to maintain secrecy and decrypted at the receiver side to retrieve the original information for secure data transmission over insecure computer data communication networks. This paper analyzes the performance metrics of blowfish algorithm with and without Wave Dynamic Differential Logic (WDDL) style to incorporate security against differential power analysis. It compares Encryption Time (Et), Decryption Time (Dt) and Total Time (Tt) of Blowfish, Modified Blowfish with and without WDDL logic for secure Integrated Circuits (SIC) [7, 8]. Modified Blowfish with and without WDDL logic yielded good results compared to Blowfish with and without WDDL logic implementation . This paper is implemented using Xilinx webpack9.2i with Verilog Hardware Description language (HDL)

The first structural study on a cyclic tricoordinate phosphorochloridite and a pentacoordinate phosphorane based on 1,2,3,5-protected myo-inositol-a new conformation of 1,3,2-dioxaphosphorinane ring

Treatment of the phosphoramidite {myo-C6H6-2-[OC(O)Ph]-1,3,5-(O3CH)-4,6-(O2P-NH-i-Pr)} with o-chloranil affords the first example of inositol-based pentacoordinate phosphorane {myo-C6H6-2-[OC(O)Ph]-1,3,5-(O3CH)-4,6-(O2P-NH-i-Pr)(1,2-O2C6Cl4)} (9) (X-ray structure) with a trigonal bipyramidal geometry at phosphorus. The six-membered 1,3,2-dioxaphosphorinane ring with the inositol residue has an unusual boat conformation in 9 which is quite different from that found in unrestrained rings investigated before, but is similar to that of its PIII chloro precursor {myo-C6H6-2-[OC(O)Ph]-1,3,5-(O3CH)-4,6-(O2PCl)} (X-ray structure). Also, a convenient and chromatography-free procedure for the protected myo-inositol derivative {myo-C6H6-2-[OC(O)Ph]-1,3,5-(O3CH)-4,6-(OH)2} is reported

A NOVEL REPEATED DISINTEGRATED ALGORITHM FOR RB MULTIPLICATION TO OBTAIN MAX OUTPUT

Within this paper, we've suggested a manuscript recursive decomposition formula for RB multiplication to acquire high-throughput digit-serial implementation. Through efficient projection of signal-flow graph (SFG) from the suggested formula, a very regular processor-space flow-graph (PSFG) comes. Redundant basis (RB) multipliers over Galois Field( ) have acquired huge recognition in elliptic curve cryptography (ECC) mainly due to their minimal hardware cost for squaring and modular reduction. It's proven the suggested high-throughput structures are the most useful one of the corresponding designs, for FPGA and ASIC implementation. By determining appropriate cut-sets, we've modified the PSFG superbly and carried out efficient feed-forward cut-set retiming to derive three novel multipliers which not just involve considerably a shorter period-complexity compared to existing ones but additionally require less area and fewer power consumption in comparison using the others. The synthesis recent results for field gate array (FPGA) and application specific integrated circuit (ASIC) realization from the suggested designs and competing existing designs are in comparison. It's proven the suggested designs are capable of as much as 94% and 60% savings of area-delay-power product (ADPP) on FPGA and ASIC implementation over the very best of the present designs, correspondingly. Both theoretical analysis and synthesis results read the efficiency of suggested multipliers within the existing ones

Characterization of the first hexacoordinate phosphorus compound with S→P←S bonds

The first example of a hexacoordinate phosphorus compound [S{6-t-Bu-4-Me-C6H2O}2]2P+(Cl-· C3H4N2) with two S→P bonds is reported. This compound can be construed as an oxophosphonium salt with double intramolecular coordination by sulfur atoms. X-ray structure reveals a facial arrangement of the ligands with two coordinating sulfur atoms cis to each other. The S→P distance of 2.334 (1) Å is one among very short coordinate bond distances between sulfur and phosphorus

Electrochemical Investigations of dopamine by gallic acid isolated from Pterocarpus marsupium Roxb carbon paste electrode : A voltammetric study

Gallic acid was isolated from the stem bark of Pterocarpus marsupium Roxb and the obtained compound was used as the modifier to study the electrochemical investigations of dopamine at modified carbon paste electrode in vitro by cyclic voltammetric technique. The effect of scan rate and concentration at modified carbon paste electrode shows the overall electrode process was both diffusion and adsorption-controlled. The same modified electrode was used for the detection of dopamine in vivo by differential pulse voltammetric technique. This method can also be used for other bioactive molecules

Vinyl Azides Derived from Allenes: Thermolysis Leading to Multisubstituted 1,4-Pyrazines and Mn(III)-Catalyzed Photochemical Reaction Leading to Pyrroles

Thermolysis of phosphorus-based vinyl azides under solvent- and catalyst-free conditions furnished a new route for 1,4-pyrazines. A simple one-pot, Mn­(III)-catalyzed photochemical route has been developed for multisubstituted pyrroles starting from allenes and 1,3-dicarbonyls via in situ-generated vinyl azides. The utility of new phosphorus-based pyrroles is also demonstrated in the Horner reaction. The structures of key products are unequivocally confirmed by X-ray crystallography