【正文】 ???? 首先，素?cái)?shù) p、 q要么能整除 a，要么與 a 互素。在此向他表示我最衷心的感謝！ 在論文完成過(guò)程中，本 人還得到了張富貴老師和劉敏同學(xué)的熱心幫助，本人向他們表示深深的謝意！ 最后向在百忙之中評(píng)審本文的各位專家、老師表示衷心的感謝！ 作者簡(jiǎn)介： 姓 名：時(shí)超 性別：男 出生年月： 民族：漢 Email: 聲 明 本論文的工作是 2021 年 2 月至 2021 年 6 月在成都信息工程學(xué)院網(wǎng)絡(luò)工程系完成的。 (2) 學(xué)?？梢圆捎糜坝?、縮印或其他復(fù)制方式保存學(xué)位論文。 除非另有科研合同和其他法律文書(shū)的制約，本論文的科研成果屬于成都信息工程學(xué)院。t believe that part. Well, anyway, my docent said you wouldn39。Menstrual bleeding frequently causes headaches and depression,39。t you tell me there was blood involved, Mother? I had, but I felt it wiser to keep silent. And you didn39。s biologist and ecologist as well. He was blac k, but attached little importance to it, having been born and raised in O39。s height, since she like a big, soft asteroid. The analogy pleased her. Extending it, she watched the terminator line crawl around her to bring the hills and valleys of her front into sunlight. Cirocco liked space, reading, and sex, not necessarily in that order. She had never been able to satisfactorily bine all three, but two was not bad. New games were possible in freefall, like the one they had been playing, no hands. T hey could use feet, mouths, knees, or shoulders to position each other . One had to be gentle and careful, but with slow bites and nips anything could be done, and in such an interesting way. All of them came to the hydroponics room from time to time. Ringmaster had seven private rooms, and they were as necessary as oxygen. But even Cirocco39。ll land on it. What do you mean, 39。d still get to name it. Discovering a et or an asteroid is one thing but only a couple people each century ge t to name a moon. Cirocco released her toehold on the holo tank strut and twisted toward the corridor entr The gunner fired the second harpoon. The whale gave a convulsive shudder. His life was nearly over. A life that had begun thirty years ago as a tiny calf in the s parkling Indian Ocean. At the age of f ive he had left his mother and joined other young males in a bachelor group. When his blubber thickened, he migrated to colder waters where food was more plentiful. At 25 he became master of a pod of twelve cows which remained with their calves in tropical seas. Although he was dwarfed by the hundredfoot blue whale, could not sing like the sweetvoiced humpback whaleboth of which fed on planktonhis sort were the largest of the toothed whales, the same majestic breed as Moby Dick. Each year he made the long journey back from the Antarctic to mate. But not this year. For three decades, the bull had eluded harpoons. Now he died, spouting thick blood. The gunner nodded w ith satisfaction. Soon the vast corpse was w inched alongside. Then, swinging slowly, the catcher boat chugged towards the factory ship whose stern gaped open like a mouth to swallow the whale. Once inside, it was hauled up a ramp. The whale was efficiently disposed of. Its domed head yielded fifteen barrels of spermaceti oil for use in cosmetics。t wise to ask too many questions round here. In the Antarctic, you could vanish without trace. Far, far to the north, off the coast of Norway, an oiltanker crawled through fog. Usually the captain loathed such conditions. But today he was pleasedfor the clammy cloud would conceal his activities. Leaning forward on the bridge, he gave orders to wash out the ship39。t poisoned by swallowing oil after preening, they would probably die of pneumonia. Singly or in small groups the bedraggled creatures stumbled to land. A threefoot gan, normally brilliant white, pecked feverishl。s action was irresponsible, illegal and punishable with a heavy fine. But who can arrest an invisible culprit? He blessed the fog as the ship stole away from the scene of the crime. Hours later a violent storm blew up, clearing the fog. Buffeted by wind, seabirds sought refuge on the calmest waterwhich was those patches slic ked with oil. N ot long after, the first greasecaked casualties started to stagger ashore. Guillemots, gans, puffins, razorbills, little auks, kittiwakes. The final death toll would be fifty thousand. News of the pollution spread fast. People gathered on the beaches, but they were unable to help the birdsexcept by putting them out of the ir misery. As a naturalist explained to a tearful woman onlooker, oil often blinded birds. I t burnt their skin, stomachs and livers. It also removed the waterproofing from their feathers, which insulated them against cold and wet, so they couldn39。 its belly, ambergris (the residue of squids39。? Gaby said. It couldn39。Why don39。t think that had much to do with his appeal。t seem to care about sex at all, and Cirocco had been irresistibly drawn to Calvin Greene. Her persistence was such that Calvin eventually went to bed with her, not just once, but three times. It didn39。Bleeding! ? Nobody ever said any thing about bleeding!39。What are cramps?39。s horse. That is a problem, I said. Well, that39。 (4) 學(xué)?？稍试S學(xué)位論文被查閱或借閱。除非另有說(shuō)明，本文的工作是原始性工作。 命題 11 說(shuō)明 a 經(jīng)過(guò)編碼為 b 再經(jīng)過(guò)解碼為 c 時(shí) , a ＝ c mod n (n = p q)，但在做編碼解碼時(shí) , 由于限制 0 = a n, 0 = c n, 此時(shí)顯然 a ＝ c, 所以這個(gè)過(guò)程能做到編碼解碼的功能。 fileWrite(m_OUT, len1)。 fileRead(data, flen)。//打開(kāi)文件 flen = fileGetLength()。 CFile *file。 } long t2=GetTickCount()。 for(int j=1。文中除了特別加以標(biāo)注地方外，不包含他人已經(jīng)發(fā)表或撰寫(xiě)過(guò)的 研究成果，也不包含為獲得成都信息工程學(xué)院或其他教學(xué)機(jī)構(gòu)的學(xué)位或證書(shū)而使用過(guò)的材料。而要實(shí)現(xiàn)較為快速的RSA 文件加密系統(tǒng)，對(duì)冪模運(yùn)算的優(yōu)化是核心，只要充分利用蒙哥馬利冪模運(yùn)算原理，對(duì) RSA 加密算法進(jìn)行適當(dāng)?shù)母倪M(jìn)， RSA文件加密將通過(guò)瓶頸，在小型文件加密上有著巨大的發(fā)展空間。 ④ 對(duì) C++核心類庫(kù)進(jìn)行重點(diǎn)優(yōu)化，使其運(yùn)算效率盡可能提高。 ② 在對(duì)加密或解密完成的數(shù)據(jù)進(jìn)行寫(xiě)出的時(shí)候，都是將其直接寫(xiě)到指定好的文件，即直接寫(xiě)入磁盤(pán)。 針對(duì)以上三點(diǎn)，軟件應(yīng)進(jìn)行一系列改進(jìn)和優(yōu)化。其中，冪模運(yùn)算和尋找素?cái)?shù)對(duì)時(shí)間的消耗最大，在核心優(yōu)化時(shí)應(yīng)優(yōu)先考慮?，F(xiàn)測(cè)試蒙哥馬利算法改進(jìn)過(guò)的加密算法與普通 RSA加密算法，使用相同密鑰對(duì)，對(duì)相同文件加密所用時(shí)間。對(duì)于一定大小的文件，使用 512bit 的密鑰，私有密鑰解密需要的時(shí)間是公開(kāi)密鑰加密需要時(shí)間的 3倍左右；而如果使用 1024bit 的密鑰，私有密鑰解密需要的時(shí)間是公開(kāi)密鑰加密需要時(shí)間的 倍以上。統(tǒng)計(jì)消耗時(shí)間情況如表 32： 表 32：加密消耗時(shí)間測(cè)試 n 位數(shù) 文件大小 20Byte（毫秒） 40Byte 60B