in cipher

Recently linear approaching analysis and correlation analysis are two important attack methods against the feedforward stream cipher, and it is a valuable work in cipher analysis and design to find new analysis ways or to improve the success probability of those now existing attack methods.

目前对前馈流密码系统的两种重要分析方法是线性逼近分析和相关分析，如何找到新的分析方法，或者如何提高现有分析方法的成功率，是密码设计与分析研究中很有意义的工作。

In this paper, an Advanced Encryption Standard ( AES) core which works in Cipher Block Chaining ( CBC) is developed in reconfigurable hardware. The design of the key unit is optimized based on the analysis of AES.

文中采用可重配置硬件设计了一个工作于CBC模式的AES核，并对关键单元的硬件设计进行了优化。

The part written in cipher – turned out after examination to be entirely unpublishable.

用密码记录的内容，经过检视完全不能公诸于世。

It's a telegram in cipher.

这是密码电报.

a message in cipher

密码信

All important plans were sent to the police in cipher.

所有重要计划均以密码送往警方.