The one-way coupled map lattices and initial condition generation function based on iterative Logistic map are used to realized the data confusion and diffusion between plain-text and key information. And the cipher block chaining mode is used to generate the 128-bit Hash value for plaint-text with arbitrary length.

該方法通過使用單向耦合映射格子和基于迭代Logistic映射的初始狀態(tài)生成函數(shù)實(shí)現(xiàn)明文和密鑰信息的混淆和擴(kuò)散国产操逼视频免费，并基于密碼塊連接方式產(chǎn)生任意長(zhǎng)度明文的128位Hash值色黄乱婬伦AV。

A primary motivation for cryptographic hash functions is that they serve as compact representative images of input messages, which they can uniquely identify. For example, the MD5 hash code "72c067b50c90837c95186d019f686700" can be looked on as the "fingerprint" to represent this thesis title uniquely.

密碼學(xué)雜湊函數(shù)也稱Hash函數(shù)国产com、哈希函數(shù)或單向散列函數(shù)超碰在线观看cao，它可以將任意長(zhǎng)度的消息壓縮到固定長(zhǎng)度的雜湊值。

Once the hash starts, it's no longer in your control.

一旦HASH開始在线国产一区二区，HASH就不是你能控制的范圍內(nèi)操操毛片。

If successful, a pointer to the allocated hash table is returned, with the bit mask (which is used in the hash function) set in hashmask.

如果成功，就返回一個(gè)指向已分配hash表的指針黄黄网站点击进入免费。掩碼位設(shè)置在hashmask中人妻丰满AV无码久久不卡。

In order to enhance the Hash functionperformance, this article structure one kindbased on the AES HASH function, this HASH function has dispersed arow result the length is 256 bits, may the very good defenseexhaustion attack.

為了提高Hash函數(shù)性能，本文構(gòu)造了一種基于AES的hash函數(shù)黄网站色视频网站免费观看，該哈希函數(shù)散列結(jié)果的長(zhǎng)度為256比特亚洲激情欧美，可以很好的防御窮舉攻擊。

MD4 and f RIPEMD.and used the two of the fortieth power Hash operates under any initial value to give the collision of the SHA-0 This means that the algorithms of security authentication extensively applied currently in the electronic commerce,bank system,and slock system tumblingly breaks down,which is the field of Hash function analysis.

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Along with the password attack method unceasing renewal, the computation ability unceasing enhancement as well as to the operating speed request, the tradition disperses row algorithm MD5, SHA has demonstrated their shortcoming and the insufficiency day by day, and thestructure of hash function is mostly based on block cipher algorithm DES, but the HASH function security is established above the grouping function security, because the DES operand is very big, the operating speed very slowly by and its itself some characteristics, therefore disperses a row function based on the DES algorithm to have potential unsecurity.

隨著密碼攻擊手段的不斷更新、計(jì)算能力的不斷提高以及對(duì)運(yùn)算速度的要求草草欧美视频在线播放二区，傳統(tǒng)的散列算法MD5特黄把又大又粗一级A片，SHA已日益顯示出它們的缺點(diǎn)和不足，并且過去hash函數(shù)的構(gòu)造多是基于分組密碼算法DES的黄粗暴高潮小说视频，而hash函數(shù)的安全性是建立在分組函數(shù)的安全性之上的夜鲁夜鲁夜鲁免费视频在线观看，由于DES運(yùn)算量很大、運(yùn)算速度很慢以及其本身的一些特性欧美性爱俺去操你啦，因此基于DES算法的散列函數(shù)具有潛在的不安全性日本大片免费久久乐。

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If a class denes mutable objects and implements a cmp or eq method, it should not implement hash, since the dictionary implementation requires that a key's hash value is immutable (if the object's hash value changes, it will be in the wrong hash bucket).

如果類定義的是可變對(duì)象并且實(shí)現(xiàn)了 cmp或 eq方法，它就不應(yīng)該實(shí)現(xiàn) hash日韩精品芒果视频下载，因?yàn)樽值鋵?shí)現(xiàn)一個(gè)散列表的鍵值是不可變的(如果對(duì)象的散列值改變了在线视频黄色中文中文网，它會(huì)放在錯(cuò)誤的散列表位置中)亚洲日韩高清AⅤ在线观看。

If a class cmp method it should not dene a hash operation either; if it denes does not dene a cmp or eq but not hash, its instances will not be usable as dictionary keys.

如果類沒有定義 cmp方法，它也不應(yīng)該定義 hash操作涩视AV；如果類定義了 cmp或 eq但沒有 hash黄色一级片一级片，它的實(shí)例就不能作為散列表的鍵使用。