检索结果-南通市图书馆

three-dimensional operation Design of Forest Engineering——A Case Study of Bagua Zhou in Nanjing City

Agricultural Science & Technology 2012年第7期13卷 1521-1523,1535页

作者：顾弘宇林涛周婧于雪梅南京林业大学土木工程学院森林工程系江苏南京210037

[Objective] The aim was to construct a virtuous eco-system covering multi-populations, multi-layers and multi-products and to explore timber production of physical and non-physical products, in order to extend products operated in forestry engineering and seek a novel model for forestry engineering. [Method] A three-dimensional operation project was designed based on forestry lands in Bagua Zhou in Nanjing City. [Result] In the project, timber products, by-products in forest and relaxing products supplimented and supported each other, and a virtuous circle has been achieved. [Conclusion] The novel model makes simultaneous relaxing and working possible, which creat vaule together.

关键词： Forestry engineering three-dimensional operation Forestry development Entironment

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Wrapping Encryption Based on Double Randomness Mechanism

引用

Computers, Materials & Continua 2023年第10期77卷 1143-1164页

作者： Yi-Li Huang Fang-Yie Leu Ruey-Kai Sheu Jung-Chun Liu Chi-Jan Huang Department of Computer Science Tunghai UniversityTaichung40764Taiwan Emergency Response Management Center Ming Chung UniversityTaipei11103Taiwan General Education Center Ming Chuan UniversityTaipei11103Taiwan

Currently,data security mainly relies on password(PW)or system channel key(SKCH)to encrypt data before they are sent,no matter whether in broadband networks,the 5th generation(5G)mobile communications,satellite communications,and so *** these environments,a fixed password or channel key(e.g.,PW/SKCH)is often adopted to encrypt different data,resulting in security risks since thisPW/SKCH may be solved after hackers collect a huge amount of encrypted ***,the most popularly used security mechanism Advanced Encryption Standard(AES)has its own problems,e.g.,several rounds have been *** the other hand,if data protected by the same PW/SKCH at different time points can derive different data encryption parameters,the system’s security level will be then greatly ***,in this study,a security scheme,named Wrapping Encryption Based on Double Randomness Mechanism(WEBDR),is proposed by integrating a password key(or a system channel key)and an Initialization Vector(IV)to generate an Initial Encryption Key(IEK).Also,an Accumulated Shifting Substitution(ASS)function and a three-dimensional encryption method are adopted to produce a set of *** randomness encryption mechanisms are *** first generates system sub-keys and calculates the length of the first pseudo-random numbers by employing IEK for providing subsequent encryption/*** second produces a random encryption key and a sequence of internal feedback codes and computes the length of the second pseudo-random numbers for encrypting delivered messages.A wrapped mechanism is further utilized to pack a ciphertext file so that a wrapped ciphertext file,rather than the ciphertext,will be produced and then transmitted to its *** findings are as *** theoretic analyses and simulations demonstrate that the security of the WEBDR in cloud communication has achieved its practical ***,AES requires 176 times exclusive OR(XOR)operations for both encryption an

关键词： Initial encryption key accumulated shifting substitution three-dimensional operation wrapped ciphertext file

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：