自撰碼 的英文怎麼說
中文拼音 [zìzhuànmǎ]
自撰碼
英文
own coding-
To oversee all the details yourself in person ; to be at once pilot and captain, and owner and underwriter ; to buy and sell and keep the accounts ; to read every letter received, and write or read every letter sent ; to superintend the discharge of imports night and day ; to be upon many parts of the coast almost at the same time ? often the richest freight will be discharged upon a jersey shore ; ? to be your own telegraph, unweariedly sweeping the horizon, speaking all passing vessels bound coastwise ; to keep up a steady despatch of commodities, for the supply of such a distant and exorbitant market ; to keep yourself informed of the state of the markets, prospects of war and peace everywhere, and anticipate the tendencies of trade and civilization ? taking advantage of the results of all exploring expeditions, using new passages and all improvements in navigation ; ? charts to be studied, the position of reefs and new lights and buoys to be ascertained, and ever, and ever, the logarithmic tables to be corrected, for by the error of some calculator the vessel often splits upon a rock that should have reached a friendly pier ? there is the untold fate of la prouse ; ? universal science to be kept pace with, studying the lives of all great discoverers and navigators, great adventurers and merchants, from hanno and the phoenicians down to our day ; in fine, account of stock to be taken from time to time, to know how you stand
親自照顧一切大小事務；兼任領航員與船長，業主與保險商；買進賣出又記賬；收到的信件每封都讀過，發出的信件每封都親自撰寫或審閱；日夜監督進口貨的卸落；幾乎在海岸上的許多地方，你都同時出現了似的； ? ?那裝貨最多的船總是在澤西岸上卸落的； ? ?自己還兼電報員，不知疲倦地發通訊到遠方去，和所有馳向海岸的船隻聯絡；穩當地售出貨物，供給遠方的一個無饜足的市場，既要熟悉行情，你還要明了各處的戰爭與和平的情況，預測貿易和文明的趨向； ? ?利用所有探險的成果，走最新的航道，利用一切航海技術上的進步； ? ?再要研究海圖，確定珊瑚礁和新的燈塔、浮標的位置，而航海圖表是永遠地改而又改，因為著計算上有了一點錯誤，船隻會沖撞在一塊巖石上而至於粉碎的，不然它早該到達了一個友好的碼頭了? ? ，此外，還有拉?貝魯斯的未知的命運； ? ?還得步步跟上字宙科學，要研究一切偉大的發現者、航海家、探險家和商人，從迦探險家飯能和腓尼基人直到現在所有這些人的一生，最後，時刻要記錄棧房中的貨物，你才知道自己處于什麼位置上。Meetings that would take hours elsewhere are frequently little more than a conversation in line for lunch and few walls separate those who write the code from those who write the checks
數小時的會議會在他處舉行，氣氛通常就像是午餐談話般自在，而在那些撰寫程式碼和填寫支票的人員之間僅有幾道墻隔開彼此。Fortunately, ipsec provides us security services for ip layer and higher layers, such as access control, connectionless integrity, data origin authentication, rejection of replayed packets ( a form of partial sequence integrity ), confidentiality ( encryption ), limited traffic flow confidentiality, and so on. the thesis gives a type of network security architecture based on ipsec system, it includes the following contents : 1 analyzing the security problem in tcp / ip protocol stack, current main network attack methods and regular defense methods. 2 studing the overall architecture, main security protocols, application environments, and working mechanism of ipsec
本文所提出的新一代網路安全體制就是建立在ipsec體系基礎上的，在本文的撰寫過程中，我主要進行了如下一些工作： 1深入分析了由tcp ip協議棧本身帶來的安全問題、當前主要的網路攻擊方法以及常採用的防範對策； 2研究了ipsec標準的總體結構、主要安全協議、應用場合以及其工作機制； 3研究了當前常用的各種數據加解密機制以及密碼演算法，深入分析了它們各自的特性和具體的使用方式； 4閱讀了大量關于混沌密碼的文獻資料，了解目前混沌密碼的研究動態和成果，研究混沌密碼體制的工作機理，然後利用vc + + 6 . 0作為開發平臺對一類混沌密碼體制進行了實現，並為它編寫測試代碼評估其性能。
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