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[Documents] datagram DL : 0: datagram application(basee on server-client) where the server sends the current time through a data to a client that asks the current time
Date : 2025-12-24 Size : 3kb User : lidia
[Documents] CryptanalysisofHwang-ChangsaTime-StampProtocolforD DL : 0: Cryptanalysis of Hwang-Changs a Time-Stamp Protocol for Digital Watermarking-In 2005, Hwang et al. [17] proposed a time-stamping protocol for digit watermarking. They claimed that their scheme is secure against attacks. However, in this article, we will show that their scheme is not secure enough for that when the owner of the image sends both the encrypted session key and image to the TSS, the attacker can intercept these transmitted data. Then, he can launch an off-line attack to analyze these intercepted data. We will describe the attacker’s action in this article. After that, we propose an improved scheme to prevent this off-line attack.
Date : 2025-12-24 Size : 387kb User : xiaowang
[Documents] G2PHANCHIATHEOPHUONGPHAP DL : 0: The Stairs Approximation algorithm, termed an incremental interpolator, determines the direction of the step every BLU interval and sends the pulse to the related axis. In this section, the Stairs Approximation interpolator for a circle will be addressed and the algorithm for a line can be easily determined from the algorithm for a circle.
Date : 2025-12-24 Size : 7kb User : maitinh
[Documents] US-016使用说明书及例程V1.1 DL : 0: 超声波传感器工作原理： ①采用I/O触发测距，给至少10us的高电平信号； ②模块自动发送8个40kHZ的方波，自动检测是否有信号返回； ③有信号返回，通过I/O输出一高电平，高电平持续的时间就是超声波从发射到返回的时间。测试距离=(高电平时间*声速(340M/S))/2。(Ultrasonic sensor working principle: (1) trigger the ranging with I/O to give at least 10us high level signal. Module automatically sends 8 40kHZ Fang Bo to automatically detect whether there is a signal return. (3) a signal is returned, and a high level is output through I/O. The duration of high level is the time from ultrasonic emission to return. Test distance = (high level time * sound speed (340M/S)) /2.)
Date : 2025-12-24 Size : 1.17mb User : 洛寒枫
[Documents] demo1 DL : 0: 实现全局状态的快照算法，并监控下列程序：两个进程P和Q用两个通道连成一个环，它们不断地轮转消息m。在任何一个时刻，系统中仅有一份m的拷贝。每个进程的状态是指由它接收到m的次数。P首先发送m。在某一点，P得到消息且它的状态是101。在发送m之后，P启动快照算法，要求记录由快照算法报告的全局状态。(The snapshot algorithm of global state is implemented, and the following programs are monitored: two processes P and Q are connected into a ring by two channels, and they continuously rotate the message M. At any time, there is only one copy of m in the system. The state of each process is the number of times it receives M. P sends m first. At some point, P gets the message and its status is 101. After M is sent, P starts the snapshot algorithm, and records the global status reported by the snapshot algorithm.)
Date : 2025-12-24 Size : 92kb User : ASAI