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;
