查询词典 trapdoor

Provable Security is a formal method for proving the security of cryptographic schemes, in which the difficulty of breaking a particular scheme is formally related to that of solving a widely believed computational hard problem. Provable security has already become an important theme of theoretical researches in modern cryptography. This dissertation investigates the provable security of public-key encryptions and hybrid encryptions of asymmetric and symmetric encryptions. This includes the various formal security notions and the constructions can be proved to achieve them. Among the constructions, hybrid encryptions are themselves an important way to obtain public-key encryption schemes with chosen ciphertext security. The main results are as follows:(1) The one-wayness of the trapdoor one-way function in NTRU depends on the randomness of the session key, which is different from previous ones. Based on this observation, a new kind of trapdoor one-way function, trapdoor one-way functions with an auxiliary random variable is proposed.

可证明安全性是一种证明密码学方案安全性的形式化方法，它将密码学方案的安全性归约为公认的计算难题，已成为现代密码学领域中理论工作的主线，本文主要研究公钥加密与单双钥混合加密的可证明安全性，这包括它们的各种形式化安全性定义以及达到这些安全性定义的方案构造，而单双钥混合加密本身也是一种构造选择密文安全公钥加密的重要方法，本文得到的主要结果如下：(1)在研究NTRU公钥加密的特殊性基础上，对于公钥加密的陷门单向函数加密模型进行了扩展，提出了具有辅助陷门单向函数的概念，并将其扩展到多元的情况，讨论了可能的密码学用途。

"Not quite," replied Jo modestly. I do think _The Witches Curse, an Operatic Tragedy_ is rather a nice thing, but I'd like to try _Macbeth_, if we only had a trapdoor for Banquo.

"过奖了，"乔谦逊地回答，《女巫的咒语，一个歌剧式的悲剧》是挺不错的，不过我想演《麦克佩斯》，如果我们能给班柯一扇活地板门的话。

One-time Signature is a type of signature scheme which is very fast based on one way function without trapdoor. Together with Merkle Tree, One-time Signature can be used to construct a solution to Multicast Source Authentication problem.

一次签名是一类基于无陷门单向函数的快速的数字签名，结合使用Merkle树来进行密钥管理，可用来构造组播源认证方案。

I was ready for my self-esteem to crash through a trapdoor.

我也明白我的自尊又会被扔到地上。

If you happen to drop through a hole or trapdoor, you'll know where the upstairs are.

如果你掉到洞里或是陷阱门里而掉到下一层，你会找到上去的楼梯的。

In chapter 5, we investigate how to use trapdoor hash functions to construct online/offline signatures.

在第五章中，我们首先研究怎么用单向陷门hash函数构造在线/离线签名。

One important aspect of the cryptographic algorithms localization is to eliminate the suspicion of a trapdoor.

密码算法本土化的一个重要方面是消除密码算法存在陷门的忧虑。

She raised the trapdoor and pointed to a flight of steps.

她打开了房门，用手指着书架。

Now Harry has gone through all of the trapdoor and he sees a man standing in the magic room.

他发现了魔法石的秘密，同时也发现了有人想偷魔法石，现在，哈利已经穿过了所有的关卡，并且发现魔法房间里站了一个人。

I had fallen through a trapdoor of depression,' said Mark, who was fond of theatrical metaphors.

"我坠过一道消沉的活板门，"喜欢用夸张隐喻的迈克说道。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。