隨著網(wǎng)絡技術的發(fā)展，網(wǎng)絡安全也就成為當今網(wǎng)絡社會的焦點中的焦點，幾乎沒有人不在談論網(wǎng)絡上的安全問題，病毒、黑客程序、郵件炸彈、遠程偵聽等這一切都無不讓人膽戰(zhàn)心驚。病毒、黑客的猖獗使身處今日網(wǎng)絡社會的人們感覺到談網(wǎng)色變，無所適從。
但我們必需清楚地認識到，這一切一切的安全問題我們不可一下全部找到解決方案，況且有的是根本無法找到徹底的解決方案，如病毒程序，因為任何反病毒程序都只能在新病毒發(fā)現(xiàn)之后才能開發(fā)出來，目前還沒有哪能一家反病毒軟件開發(fā)商敢承諾他們的軟件能查殺所有已知的和未知的病毒，所以我們不能有等網(wǎng)絡安全了再上網(wǎng)的念頭，因為或許網(wǎng)絡不能有這么一日，就象“矛”與“盾”，網(wǎng)絡與病毒、黑客永遠是一對共存體。
現(xiàn)代的電腦加密技術就是適應了網(wǎng)絡安全的需要而應運產(chǎn)生的，它為我們進行一般的電子商務活動提供了安全保障，如在網(wǎng)絡中進行文件傳輸、電子郵件往來和進行合同文本的簽署等。其實加密技術也不是什么新生事物，只不過應用在當今電子商務、電腦網(wǎng)絡中還是近幾年的歷史。下面我們就詳細介紹一下加密技術的方方面面，希望能為那些對加密技術還一知半解的朋友提供一個詳細了解的機會！
Along with the technical development of network, the network safety also becomes the focus in the focus of the network society nowadays, almost no one not at discuss the safe problem of the network, virus, a procedure, mail bomb, the long range interception etc. the all theses let person's tremble with fear scared. Virus, black guest of rampant make body for today the people of the network society feel talk that the net color change, indecisive.
But we are essential to know clearly, the safe problem of the all these everything we can't find out the solution once and all, having plenty of besides basically can't find out the exhaustive solution, such as the virus procedure, because any anti- virus procedures all only the ability then can develop out after new virus detection, returning to have no currently which ability an anti- virus software develop the software that the company dares to promise them and can check to kill all have already know of and unknown virus, so we can't have etc. network safety again the mind that get to the Internet, because probably the network can't have so on first, for the elephant" pike" and" shield’s, the network and virus, black guests are a rightness of coexistence bodies forever.
The computer of the modern encrypt technique be adapted the net