This paper proposes compact hardware implementations of 64-bit NESSIE proposed MISTY1 block cipher for area constrained and low power ASIC applications. The architectures comprise only one round MISTY1 block cipher algorithm having optimized FO/FI function by re-utilizing S9/S7 substitution functions. A focus is also made on efficient logic implementations of S9 and S7 substitution functions using common sub-expression elimination (CSE) and parallel AND/XOR gates hierarchy. The proposed architecture 1 generates extended key with independent FI function and is suitable for MISTY1 8-rounds implementation. On the other hand, the proposed architecture 2 uses a single FO/FI function for both MISTY1 round function as well as extended key generation and can be employed for MISTY1 [Formula: see text] rounds. To analyze the performance and covered area for ASICs, Synopsys Design Complier, SMIC 0.18[Formula: see text][Formula: see text]m @ 1.8[Formula: see text]V is used. The hardware constituted 3041 and 2331 NAND gates achieving throughput of 171 and 166 Mbps for 8 rounds implementation of architectures 1 and 2, respectively. Comprehensive analysis of proposed designs is covered in this paper.
Highly optimised reconfigurable hardware architecture is proposed of 64 bit block ciphers MISTY1 and KASUMI for wide-area cryptographic applications. The reconfigurable hardware architecture is comprised of reconfigurable components consisting of FL function, FO/FI function and XOR function designed to perform MISTY1 and KASUMI algorithms round transformation functions. In addition, reconfigurable FO/FI function is adequate to generate MISTY1 extended keys for onward use in MISTY1 round transformation function. The substitution functions S9 and S7 for MISTY1 and KASUMI algorithms are optimised for area and throughput. Common subexpression elimination for AND-XOR logic combined with permutation/combination technique for AND gates reduces the area considerably, whereas parallel execution improves the throughput. With this design approach, application specific integrated circuit (ASIC) implementations using Synopsys Design Complier, SMIC 0.18 µm at 1.8 V achieved an area of 3481 NAND gates having throughput of 130.2 and 154.56 Mbits/s for MISTY1 and KASUMI, respectively. Synthesised FPGA implementation using Xilinx Artix 7 FPGA yielded an area of 487 configurable logic block (CLB) Slices having throughput of 209.43 and 248.7 Mbits/s for MISTY1 and KASUMI, respectively. Detailed design and performance analysis of reconfigurable hardware architecture of 64 bit block ciphers MISTY1 and KASUMI for ASIC implementations is described.
This letter proposes highly efficient MISTY1 8-rounds pipelined architecture for wireless networks. A novel methodology is adopted for implementation of MISTY1 substitution functions by optimizing S9 and S7 LUTs (Look-Up Tables) to minimize the silicon area. Besides, a key module FI function is compliant to double edge-trigger the optimized S9 LUTs. This leads to substantial reduction in the pipeline requirements for the proposed hardware architecture. For path delay reduction, logic modifications are made in FI and FO functions realizing efficient and high-speed MISTY1 implementation. FPGA implementation on Xilinx FPGA, Virtex 7 xc7vx690t yielded a throughput value of 16.3 Gbps covering area of 1265 CLB slices.
Acute erythroleukemia is characterized by a predominant immature erythroid population and accounts for approximately 2-5 % of all cases of acute leukemia. Two subtypes are recognized based on the presence or absence of a significant myeloid component: erythroleukemia and pure erythroid leukemia. Erythroleukemia is predominantly a disease of adults, while pure erythroid leukemia can be seen in any age including children. Here is a case of pure erythroleukemia presenting mainly as late erythroblasts which was diagnosed on bone marrow examination, cytochemistry and was confirmed on immunophenotyping. Possibly this is the only case so for demonstrating deletion of long arm of chromosome 20 in pure erythroleukemia.
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