文章基本信息

标题：A Literature Survey on Efficiency and Security of Symmetric Cryptography
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作者：Mayank Kumar Rusia ; Mohit Rusia
期刊名称：International Journal of Computer Science and Network
印刷版ISSN：2277-5420
出版年度：2017
卷号：6
期号：3
页码：425-429
出版社：IJCSN publisher
摘要：Data encryption is widely used to assure security in open networks such as the internet. Each kind of data has its own features; therefore, different techniques should be used to protect confidential data from unauthorized access. Currently, most of the available encryption algorithms are used for text data. However, due to large data size and real time constrains, algorithms that are good for textual data may not be suitable for multimedia data. This Paper is a literature survey about block ciphers encryption algorithm( triple-DES, DES,AES, Blow-Fish).In this Paper I have concentrates on providing a starting point for designing strong, secure, and efficient cryptosystems. Various design issues and algorithms have been described in the paper. Paper explains a new timing evaluation model based on random number generating mechanism is proposed here to analyze the time-consuming of the known block cipher symmetric cryptographic algorithms. In this model for evaluation, there is one evaluating mode, which is different plaintexts in the same key (DPSK). As the basis of the evaluating model, the plaintext and the corresponding key, both generated by random numbers. The theoretical results shows that under the same key length and for the same size of the processed data, TripleDES is about several hundred times slower than our proposed working model, AES, DES, Blow-Fish and IDEA. And there are other runtime characteristics which further highlight the difference between these three cryptographic algorithms and provide a reference value of for people’s rational using.
关键词：Time;Consuming; Triple;DES; AES; Blow;Fish; IDEA; Random Number;