The paper also provides algorithmes about boolean intersection calculation of two protruding polyhedron and the computer programmes for the algorithm . the programmes are of general meanings . boundary conditions and diversified load conditions are dealt with by program 程序同時(shí)完成了兩個(gè)凸多面體布爾求交的算法問(wèn)題并用程序精確的將其實(shí)現(xiàn),具有普遍的實(shí)際意義;程序處理了邊界條件、載荷,成功地解決了三維連續(xù)體的彈性靜力學(xué)分析問(wèn)題的求解。
In this paper , we brought out the concept of “ ergodic matrix ” , and gave out the recursion formula ( ii ) which can construct the ergodic matrix q with n n dimensions using a vector with n dimension . that is , we can delegate n2 bits ergodic matrix q using n bits integer vector , at the same time save the complexity of space and time 在此基礎(chǔ)上,本文對(duì)利用遍歷矩陣生成信息摘要以及利用它們實(shí)現(xiàn)一般數(shù)字簽名和具有仲裁方式的數(shù)字簽名的算法及應(yīng)用進(jìn)行了相關(guān)的一些研究,對(duì)算法的強(qiáng)度進(jìn)行了分析,并用程序對(duì)算法進(jìn)行了驗(yàn)證。
Aes will take the place of des and become new standard of encryption . we programmed the source code for the algorithm in vc and gave the result . hash function is another methods that ensure integrality of data and guarantee that message content is not altered during the transmission between the riginator and the recipient 本論文在這一草案的基礎(chǔ)上深入分析它的加密、解密和密鑰產(chǎn)生過(guò)程,論證了其較之?dāng)?shù)據(jù)加密標(biāo)準(zhǔn)des的眾多優(yōu)點(diǎn),并用程序實(shí)現(xiàn)了aes - 128的加密過(guò)程,給出了實(shí)驗(yàn)結(jié)果。