hybrid attack 中文意思是什麼
hybrid attack
解釋
混合攻擊-
Then, based on the theory of discrete fourier transform, discrete cosine transform and discrete wavelet transform, two invisible image watermarking schemes in transform domain are proposed, one is circular symmetric spread spectrum digital image watermarking based on chaotic sequences, the other is the hybrid image watermarking based on wavelet decomposition and discrete cosine transform. finally, the good performance of the two algorithms is verified by some common image processing and attack experiments
在分析了dft 、 dct 、 dwt的理論與演算法的基礎上，提出了兩種基於變換域的圖像隱形水印方案? ?基於混沌序列的圓對稱擴頻水印方案和基於小波分解和餘弦變換結合的水印方案，並通過一些常見的圖像處理及攻擊實驗驗證了這兩種演算法生成水印的性能。 -
The result of macro - quality experiments show : mineral admixtures markedly slow the hydrating velocity of cement slurry, decrease and delay the hydrating max - temperature, in which steel slag is more effective ; expansive agents compensate concrete shrinkage, enhance the concrete dense degree, strengthen the interfacial layer between fiber and cement matrix and improve the physical mechanics qualities of acic ; minimal admixtures markedly improve the concrete workability property, increase the concrete later intensity & density and the capability of anti - chemical attack and anti - permeability ; hybrid fiber reinforces the toughness of obviously acic by the means of anti - cracking effect of fiber with different sizes and different properties in the corresponding construction levels
實驗結果顯示：鋼渣摻合料能顯著減緩水泥漿體水化速率，降低砂漿的水化溫升並延遲最高溫升時間；補償混凝土收縮，提高混凝土密實度，加強纖維與水泥石的界面粘結，增強混凝土力學性能，但不能明顯改善混凝土韌性。混雜纖維通過纖維的不同尺度與不同性質在相應的結構層次上產生阻裂效應，增韌鋼渣防滲抗裂混凝土；增加混凝土的破壞極限能，極大提高混凝土抗彎曲能力和韌性指數，改善混凝土脆性。 -
A hybrid attack will add numbers or symbols to the filename to successfully crack a password
混合攻擊將數字和符號添加到文件名以成功破解密碼。 -
Due to the some normal ids ' s low efficiency, high error report rate, bad self - security, this thesis has given out a new - type hybrid intrusion detection system ( hsids ) design with high efficiently, good self - security, combining the distrubited information gathering with the centralized managerment, and combining the nid and the hid. the detailed design scheme also has been presented. the hsids adopts the " black hole " hidden setting, greatly decreasing the posiblity for hacker to discover and attack the hsids
在hsids中，採用「黑洞」式隱形設置，可以大大減少hsids系統被黑客發現並攻擊的可能；系統採用的將nid與hid相結合的方式可降低入侵信息的漏報與誤報率；改進的檢測演算法提高了檢測引擎的速度；採用開放的檢測規則方便了系統的升級，提升了檢測能力； web方式的安全管理可以很好地控制整個監控網路的安全情況；被動防禦與主動防禦相結合更有效的防止了入侵者對系統的入侵。
分享友人