If I take a letter, lock it in a safe somewhere in New York, then tell you to read the letter, that's not security. That's obscurity. On the other hand, if I take a letter and lock it in a safe, and give you the safe along with the design specifications of the safe and a hundred identical safes with their combinations so that you and the world's best safecrackers can study the locking mechanism - and you still can't open the safe and read the letter - that's security. (查看原文)
And don't forget Kerchhoffs' assumption: If the strength of your new cryptosystem relies on the fact that the attackers does not know the algorithm's inner workings, you're sunk. If you believe that keeping the algorithm's insides secret improves the security of your cryptosystem more than letting the academic community analyze it, you're wrong. And if you think someone won't disassemble your code and reverse-engineer your algorithm, you're naive. The best algorithms we have are the ones that have been made public, have been attacked by world's best cryptographers for years, and are still unbreakable. (查看原文)
皇家狗蛋
Boyee ZaZa
0 有用 知觉 2013-11-26
读完了，还是不清楚，没有解决问题，标记下
0 有用 犹在水一方 2018-12-03
书是挺好的书 就是第一篇关于加密方式的描述有些事无巨细 变成工具书了
0 有用 jinleileiking 2010-11-03
扫过一些我需要的
0 有用 山海 2013-05-14
PM系Q1
0 有用 心之别离 2010-04-28
经典
0 有用 秋也里 2021-02-17
里面会有一些有趣的例子，分类，分主题讲解
1 有用 PencilStart 2019-08-11
神书。七七八八看了一阵子。可以系统的看，也可以一部分一部分看。第一部分对于不是数学、计算机背景的人，若想了解密码学的发展，那种密码应用在历史场景中演变发展的描述方式，将会非常受用。再捞一遍。另外，如果研究过rc4，你就会知道在其rfc标准中，甚至都引用了本书作者在本书某节论证的结论：那是一个可能不可靠的异或算法。经典。可以当字典查。可惜一些算法介绍的粗一些。前面结合算法讲密码学发展的部分很好。
0 有用 辛巴不吃素 2019-04-14
当作论文的索引来看会更好，非常全面
0 有用 犹在水一方 2018-12-03
书是挺好的书 就是第一篇关于加密方式的描述有些事无巨细 变成工具书了
0 有用 绵子儿 2017-08-16
看不太懂actually..