(3)在 RFID标签中有一个“安全位”(security Bit),通过 该位的。和1状态交替变化以标示书本是否被借 出,VTLS和Libramation就是采用了这种方案。
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...oft Word - 在此窗口的左侧可选择选择各种型号的 ispGDX 器件; 在此窗口的右侧可选择各器件参数是否有效: 加密位 (Security Bit), 上拉所有输出引脚 (Pull Up All) 和所有..
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图1.28 编译器窗口 图1.29 选择器件对话框 19 ②如有必要,打开保密位(Security Bit),然后单击“OK'’按钮;如不需要, 则可关闭保密位,然后单击“OK'’按钮。
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bit security 比特安全性
External memory access requests are processed by first reading the corresponding security bit.
外部存储器存取请求首先通过读取相应的安全位来处理。
When the Security Bit is activated all parallel PROGRAMMING commands except for Chip-Erase are ignored (thus the DEVICE cannot be read).
当保密位被激活后,除芯片擦除外的所有并行编程命令都被忽略(这样就不能对器件执行读操作)。
The final point that I want to make with respect to security selection actually is a little bit different with the degree of opportunity.
我想说的最后一点是,就证券选择而言,运气也会带来一些差别
But in society today, and we'll talk a bit about security topics -- and such throughout the course, for cryptography -- for encrypting things like your credit card information and bank accounts -- you don't use 32 bits, you don't use 64 bits, you generally use 1024 bits, 4,048 bits.
但在当今的社会上,我们将讨论一点安全方面的知识,贯穿整个课程,密码学-,加密一些像信用卡信息,银行账号之类的东西--你不能用32位,你也不能用64位,你通常要使用1024位,4048位。
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