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相关概念视频

Design Example: Capacitance Multiplier Circuit01:20

Design Example: Capacitance Multiplier Circuit

776
In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
776
Multi-input and Multi-variable systems01:22

Multi-input and Multi-variable systems

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Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence...
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Linear Circuits01:17

Linear Circuits

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A linear circuit is characterized by its output having a direct proportionality to its input, adhering to the linearity property, which encompasses the principles of homogeneity (scaling) and additivity. Homogeneity dictates that when the input, also referred to as the excitation, is multiplied by a constant factor, the output, known as the response, is correspondingly scaled by the same constant factor. For instance, if the current is multiplied by a constant 'k,' the voltage likewise...
405
Inverting and Non-inverting OpAmps01:20

Inverting and Non-inverting OpAmps

755
In an inverting amplifier, the input voltage is connected through a resistor to the inverting terminal. Meanwhile, the non-inverting terminal is grounded and a feedback resistor is established between the inverting and output terminal, as depicted in Figure 1.
755
Cascaded Op Amps01:16

Cascaded Op Amps

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Operational amplifiers (op-amps) are versatile electronic components that can be interconnected in a cascade - one after another in a linear sequence. This cascading is possible due to their infinite input resistance and zero output resistance, allowing them to maintain their input-output relationships even when connected in series.
In a cascaded system, each op-amp is referred to as a stage. The output of one stage drives the input of the subsequent stage. As the input signal passes through...
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Second-Order Circuits01:17

Second-Order Circuits

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Integrating two fundamental energy storage elements in electrical circuits results in second-order circuits, encompassing RLC circuits and circuits with dual capacitors or inductors (RC and RL circuits). Second-order circuits are identified by second-order differential equations that link input and output signals.
Input signals typically originate from voltage or current sources, with the output often representing voltage across the capacitor and/or current through the inductor. For example, in...
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Updated: Jul 5, 2025

Gene Digital Circuits Based on CRISPR-Cas Systems and Anti-CRISPR Proteins
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优化使用两个或更高输入XOR门的线性层实现.

Meltem Kurt Pehlivanoğlu1, Mehmet Ali Demir1

  • 1Department of Computer Engineering, Kocaeli University, Kocaeli, Turkey.

PeerJ. Computer science
|January 25, 2024
PubMed
概括
此摘要是机器生成的。

研究人员开发了新的算法,以优化轻量级块密码组件的设计. 这些方法减少了XOR门的数量和电路深度,从而导致更高效和更安全的加密设计.

关键词:
轻量级密码学是一种轻量级的密码学.线性层是线性的层.低面积电路的低面积电路这是一个MDS矩阵.直线节目是直线节目.

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科学领域:

  • 密码学 密码学 密码学
  • 计算机工程 计算机工程
  • 数字电路设计数字电路设计

背景情况:

  • 最大距离可分离 (MDS) 矩阵对于区块密码线性层中的扩散至关重要.
  • 轻量级非随意的MDS矩阵提供了安全性和性能优势.
  • 对于MDS矩阵来说,高效的电路实现 (线性直线程序) 是一个挑战.

研究的目的:

  • 开发新的启发式算法,以优化XOR门数和线性层中的电路深度.
  • 为区块密码设计新的,高效的内置MDS矩阵.
  • 为了提高线性层的电路面积效率,使用多输入的XOR门.

主要方法:

  • 提出了Superior Boyar-Peralta (SBP) 启发式算法,用于优化双输入 XOR 门电路.
  • 引入了对多输入XOR门的BDKCI启发式的深度感知增强.
  • 设计和分析了一种新的4x4非自发MDS矩阵.

主要成果:

  • 该SBP算法产生了一个4x4非随意的MDS矩阵,具有41个XOR门和深度3,超越了以前的最佳.
  • 改进的BDKCI算法实现了更高效的AES混合列电路 (44个XOR门/深度3).
  • 新的4x4非随意MDS矩阵实现了19个XOR门/深度3.0的极低成本.

结论:

  • SBP和增强的BDKCI算法显著提高了线性层电路设计的效率.
  • 新的MDS矩阵设计提供了最先进的轻量化实现.
  • 优化的线性层有助于更安全,更高性能的区块密码.