基于IDEA算法的數(shù)據(jù)加密解密及數(shù)字簽名
摘要
隨著Internet的普及，計(jì)算機(jī)的安全問(wèn)題越來(lái)越重要，出現(xiàn)了許多關(guān)于計(jì)算機(jī)安全的加密算法，進(jìn)年來(lái)分組密碼新的算法不斷涌現(xiàn)，而其中IDEA算法就是其中對(duì)數(shù)據(jù)加密的1種重要加密算法，它在方法論上是新穎的，而且速度快。其特點(diǎn)就是加密與解密相同，只是密鑰各異。無(wú)論用軟件或硬件來(lái)實(shí)現(xiàn)都不難。加密與解密運(yùn)算速度都非常快。
而我們?cè)谶@個(gè)軟件中主要是實(shí)現(xiàn)了從文件中讀取數(shù)據(jù)，對(duì)讀取的數(shù)據(jù)進(jìn)行加密。并把加密后的文件保存到文件中。其后實(shí)現(xiàn)了對(duì)加密文件的'解密，解密后與原文比較。最后就是為了解決假冒問(wèn)題的數(shù)字簽名。
國(guó)際數(shù)據(jù)加密算法是分組密碼的佼佼者，因此在現(xiàn)今的數(shù)據(jù)加密方面應(yīng)用很多。
關(guān)鍵字：加密;解密;密鑰;數(shù)字簽名
Abstract
With the Internet popularization, the computer security problem is becoming more and more important.As a result,,it appeared many algorithm about the computer security encryption , in recent yeas new algorithm of block cipher have emerged in large numbers,but IDEA algorithm is an important one of the data encryption encryption algorithm. In the methodology it is novel, moreover the speed is quick..Its character is the encrypt and the decipher is same, only the key is respectively different. It doesn’t difficult to realize it with the software or the hardware .The encryption and the decipher operating speed is both extremely quick.
But what we mainly obtain in this software is we have read the data from the document, which had been carried on the encryption ,and then we decipher the documents which have been encrypted, furthermore, we compare the two kinds of documents.The last problem is in order to solve the digital signature of counterfeit question.
The international data encryption algorithm is the outstanding one in block cipher,therefore,nowadays there are a lot of applications in data encryption .
Keywords: encryption; decrypt,;key;digital signature
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