- unpredictableness
- n.
- unpredictable的變形
- unpredictable
- [,?npri'dikt?bl]
- adj.
- 不可預(yù)見的；不可預(yù)測的；不可預(yù)言的；不定的，易變的
- n.
- 不可預(yù)言(或預(yù)測)之事
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unpredictableness中文什么意思
例句與用法
- key management is critical technic of realizing database encryption . in this dissertation, after analysing and comparing several popular key managemet scheme . we make improvement of two-phase key management scheme according to the matter of fact, and achieve two-phase key management scheme from user key to user class key and to data class key, through creating system table in database . at the same time, we work out key using sequence of chaotic nonlinear system . chaotic sequence is complex and recalcitrant to analysis and unpredictableness, and it can offer good complexity and comparable randomness . experiment result proves that using chaotic sequence can create good key
本文首先分析比較了幾種常用的密鑰管理方案，然后針對應(yīng)用的實際情況，對兩級密鑰管理方案進(jìn)行了改進(jìn)，通過在數(shù)據(jù)庫中建立系統(tǒng)表實現(xiàn)了由用戶密鑰得到用戶類密鑰、以及由用戶類密鑰得到數(shù)據(jù)類密鑰的兩級密鑰管理。同時，本文利用由混沌非線性系統(tǒng)迭代產(chǎn)生的序列來生成密鑰?；煦缧蛄薪Y(jié)構(gòu)復(fù)雜，難以分析和預(yù)測，能提供很好的復(fù)雜性、類隨機(jī)性。