Quantum-shift-register circuits
نویسندگان
چکیده
منابع مشابه
On Shift Register Realization of Sequential Circuits
Realizing a sequential machine with shift registers is an attractive approach to the design for testability. It requires little extra circuit for scan and since feed-backs are always to the rst ip-op of a shift register test generation is expected to be easier than that for circuits with unstructured feedbacks. Though the shift register realization of sequential machines was studied by several ...
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The quantum-dot cellular automata (QCA) computational paradigm provides a means to achieve ultimately low limits of power dissipation by replacing binary coding in currents and voltages with single-electron switching within arrays of quantum dots (‘‘cells’’). Clocked control over the cells allows the realization of power gain, memory and pipelining in QCA circuits. We present an experimental de...
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This is the second of a series of intended reports on realization of sequential machines with shift registers and on properties of shift registers. Some of the pathological cases for the shift register realization algorithms SRR/GSRR reported in the previous report are investigated here. One of the pathological cases turned out to be simple cycles, and based on the work of Yoeli, an algorithm h...
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A stream cipher is a symmetric cipher which operates with a time-varying transformation on individual plaintext digits. By contrast, block ciphers operate with a fixed transformation on large blocks of plaintext digits. More precisely, in a stream cipher a sequence of plaintext digits, m0m1 . . ., is encrypted into a sequence of ciphertext digits c0c1 . . . as follows: a pseudorandom sequence s...
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Feedback Shift Register (FSR) sequences have been successfully implemented in many communication systems for their randomness properties and ease of implementation. These include ranging and navigation systems, spread spectrum communication systems, CDMA mobile communication systems, and crypto systems such as streamciphers. This article gives a brief overview of FSR sequences, both linear and ...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2009
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.79.062325