解符碼化 的英文怎麼說
中文拼音 [jiěfúmǎhuà]
解符碼化
英文
de-coding-
We must further decipher the submolecular code of chemical ecology and abide by its rules in our breeding programs.
我們必須進一步譯解化學生態學的亞分子密碼並使育種計劃符合規律。An investigation of the rijndael algorithm which is the advanced encryption standard of usa is taken in this thesis. we have focused on developing the cryptographic properties of the rijndael sbox from the viewpoint of boolean function, walsh spectrum and algebraic structures, on the attacks against the reduced variants of rijndael, and on the optimized implementations of rijndael. the key contributions follow below
本文對美國高級加密標準rijndael演算法進行了比較深入的研究，內容包括：從布爾函數、 walsh譜和代數結構的角度對其s盒密碼性質進行的研究，簡化演算法的攻擊方法以及演算法的優化實現問題，主要成果有： 1 、提出求解布爾函數表達式的兩種新方法，具有簡潔、易於編程實現、準確而快速的特點，應用於des演算法獲得與公開文獻相符的結果，應用於rijndael演算法首次求出其s盒布爾函數表達式。If we do not have a good grasp of his life as an artist, the reasons for his choices, or the language of art which is the premise of his works, how can we feel close to, and benefit from, a cultural soul that has so much to offer
不透徹地了解他的藝術人生，了解他那些選擇的動機，甚至，不懂得構成他的作品的藝術語匯符碼，又怎麼去貼近一個豐富的文化靈魂？Using the theories of probability, algebra and number theory comprehensively, we investigate a class of boolean functions with three - valued walsh spectrum in the first part of this dissertation : the properties of the extended semi - bent functions, which are constructed from any two bent functions, are studied, followed by the structure characteristics of the boolean functions satisfying propagation criterion with respect to all but two vectors ; the definition and cryptographic properties of k - order quasi - bent functions are proposed whose walsh spectrum takes on only three values. some sufficient and necessary conditions are offered to decide whether a boolean function is a k - order quasi - bent function ; a special method is presented to construct the k - order quasi - bent functions, whose cryptographic properties are explored by the matrix method, which is different from the method of walsh spectrum and that of autocorrelation of boolean functions ; the application of this kind of boolean functions in the fields of stream cipher, communications and block ciphers is discussed, which shows the great importance of the fc - order quasi - bent functions ; some methodology are proposed to construct the k - order quasi - bent functions, including the complete construction by using the characteristic matrices of boolean functions, and the recursive method by two known k - order quasi - bent functions we further extend our investigation to the ring zp, where p is a prime, and the similar results are presented as far as the p - valued quasi - generalized - bent functions are considered
本文首先綜合運用概率論、代數學、數論等基礎學科的理論知識，並以頻譜理論作為主要研究工具，對一類譜值分佈相對均勻的函數? ?廣半bent函數、 k階擬bent函數和p值k階擬廣義bent函數進行了系統、深入的研究，給出了廣半bent函數定義，並探討了廣半bent函數的密碼學性質；給出了k階擬bent函數和p值k階擬廣義bent函數的定義及等價判別條件；討論了k階擬bent函數和p值k階擬廣義bent函數與部分bent函數和p值廣義部分bent函數的關系，探討了它們的密碼學性質；給出了k階擬bent函數和p值k階擬廣義bent函數的典型構造方法，並將對k階擬bent函數的密碼性質的研究轉化到對一類特殊的矩陣的研究上；利用布爾函數的特徵矩陣原則上給出了k階擬bent函數的一種完全構造方法，還給出了從已有的p值k階擬廣義bent函數出發，遞歸構造變元個數更多的p值k階擬廣義bent函數的方法；初步探討了k階擬bent函數在序列密碼、分組密碼以及通信中的應用；給出了一類布爾函數walsh譜的分解式，並利用這類布爾函數的walsh譜分解式給出了一類近似穩定的布爾函數的構造，特殊情形下為k階擬bent函數；利用代數數論的知識考察了p值k階擬廣義bent函數的譜特徵，並給出了k階擬廣義bent函數與所有仿射函數的符合率特徵等等。So a fast pattern matching algorithm on mass string assemble has been proposed to solve the problem of fuzzy matching between a string pattern and a string assemble. to make the algorithm cost - effective in space and time, we have developed an optimized trie - tree structure to store the string assemble and introduced the knuth - morris - pratt ( kmp ) and finite - automata ( fa ) string matching thought to our algorithm. the algorithm has been describled in details and the cost of space and run time has been analized in the thesis
為了實現漢字輸入碼的不完整輸入，解決帶有模糊輸入符的字元串模式與一個字元串集合之間的匹配問題，論文在第三章提出一種海量字元串集合的模式匹配演算法，給出了演算法的具體實現和復雜度分析，並且提出一種優化的檢索樹結構來存儲字元串集合以節省內存空間。為了提高演算法的運行速度，演算法還引入了kmp模式匹配和有限自動機匹配的思想。Fractal image compression coding ( ficc ) is a new image coding method developed in recent years and has been studied extensively. based on the analyze of conventional fractal coding and decoding, a fractal image coding algorithm based on changeable threshold and creative function is proposed in this paper. new algorithm is to be in accordance with the feature of human visual system
本文通過對傳統分形圖像壓縮編解碼的分析，提出了門限變化和生成函數改進的編碼演算法，此演算法在一定程度上與人類視覺系統特性相符，我們在理論上證明了在相同的條件下，用改進的生成函數恢復的圖像在質量方面比傳統的生成函數要好，恢復圖像的信噪比有所提高。Model coding normalization conveniences model management and retrieval ; model data normalization includes the model description file ( mdf ) and the operation on the mdf, which separates model description and model implementation, unifies model expression, normalizes model data and model operation, and so on ; model encapsulation supports models programmed by any kind of language running on the same operation systems, and conforms them to normalization ; model normalization provides the basis for efficient management, organization, operation and encapsulation of models used in dss, which makes them easy to understand, use and combine
模型編碼規范化便於模型管理和查詢；模型數據規范化包括模型描述文件和對該文件的操作兩個部分，使得模型描述和模型實現相分離，統一了模型的表達，規范了模型數據的操作以及模型運行等。模型封裝支持多種語言實現的模型，使之符合模型規范化要求。模型規范化提供了有效管理、組織、運行、封裝決策模型的基礎，使得模型易於理解和使用，並方便模型組合。分享友人