We then provide tow constructions , hcbc and hpcbc , based on a given block cipher e and a family of axu functions 基于一个给定的分组加密和一个axu函数族，我们给出了hcbc和hpcbc这两种构造方法。
A . 2 aes shall be a symmetric block cipher . a . 3 aes shall be designed so that the key length can be increased as needed 在任何情况下，对象管理器都必须将对象的安全性上下文作为不透明的字符串处理。
The design and the analysis of the block cipher not only are contrary but also are dependent each other 分组密码的设计与分析是相互对立又相互依存的两个研究方向，它们的对立促进了分组密码的飞速发展。
The born of aes and the launching of nessie project , bring a new climax of block cipher research all over the world Aes的诞生和欧洲nessie密码计划的启动，使得国际上又掀起了一次研究分组密码的新高潮。
Information technology - security techniques - data integrity mechanism using a cryptographic check function employing a block cipher algorithm 信息技术安全技术用块密码算法作密码校验函数的数据完整性机制
Information technology - security techniques - data integrity mechanism using a cryptographic check function employing a block cipher algorithm 信息技术.保密技术.采用数据块密码运算法的加密检验功能的数据集成机构
Third , during the process of jpeg compression coding , how to realize the image compression and encryption by using the block cipher 三是如何在图像的jpeg编码压缩过程中同时进行分组加密以实现对图像的压缩加密。
The results obtained in this thesis offers some new ideas and methods for studying of permutation theory in block cipher system 上述工作为分组密码中置换理论的研究提供了新的方法、新的思路，并得到了一批好的置换源。
This may result that a block cipher with time and counter parameters is secure even with cases that the number of round is largely reduced 这也许会导致这类带有时间组号参数的分组算法在减少迭代轮情况下仍然是安全的。
Blowfish is a block cipher created by bruce schneier , a computer security consultant and author of the standard reference Blowfish是由bruce schneier创造的一种块加密算法， bruce schneier是一名计算机安全顾问，同时也是标准参考
