[练习] 【2018-3-8】每天进步一点点

If an unauthorized party not only accesses but tampers with an asset, the failure becomes a modification. For example, someone might modify the values in a database, alter a program so that it performs an additional computation, or modify data being transmitted electronically. It is even possible for hardware to be modified. Some cases of modification can be detected with simple measures, while other more subtle changes may be almost impossible to detect .

如果非授权用户不仅可以访问计算机资源，而且可以篡改资源，则威胁就成为修改了。例如，某人可以修改数据库中的值更换一个程序，以便完成另外的计算，或修改正在传送的数据甚至可能修改硬件。某些情况下可以用简单的测量手段检出所做的修改，但某些微妙的修改是不可能检测出来的。

“Sure.”
“But … how can I tell if one of them's a rooster or not?”
“Roosters are …I don't know… bigger. And they have more feathers.”
“Feathers? Like I've got to go and count feathers?”
“No, stupid! My mom says that the male's always brighter.” Then he laughs and says,
“Although in your case I'm not so sure.”
“Thanks. You are giving me big-time help here, buddy. I really appreciate it.”
“Look, a rooster's going to be bigger and have brighter feathers. You know, those long ones in the back? They're redder or blacker or whatever.
And don't roosters have some rubbery red stuff growing off the top of their head? And some off their neck, too? Yeah, the rooster's got all sorts of
rubbery red stuff all around its face.”

“当然了。”“可是。。。我怎能才能知道他们养没养公鸡？”
“公鸡么。。我不知道。。。体型大一些。羽毛更多。”
“羽毛？你是说我要去数羽毛？”
“不，笨蛋！我妈妈说公鸡的羽毛更鲜艳。”他笑了，“不过对你来说，我就不确定了。”
“谢谢。你帮了我大忙，伙计。太谢谢了。”
“记住，公鸡的个头更大，羽毛更鲜艳。你知道吧，就是屁股后面那些长长的羽毛。红色的，或者黑色，或者别的颜色。还有，公鸡是不是头上长了些红色的软乎乎的东西？还有脖子上也是？没错，反正公鸡在脑袋的四周都长着红色的软东西。”