block cipher

A new symmetric block cipher algorithm was brought forward. The overall structure and hardware implementation of an encryption and decryption ASIC system based on PCMCIA interface standard were achieved.

根据标准数据加密算法，提出了一种新的对称分组加密算法，并基于国际个人计算机存储卡协会（PCMCIA）接口标准完成了加密/解密芯片的总体设计和硬件实现。

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IDEA is a symmetrical block cipher. End-to-end encryption based on IDEA is presented and analyzed.

分析了基于分组密码算法IDEA设计的端-端加密系统.

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Block cipher algorithms encrypt data in block units, rather than a single byte at a time.

块密码算法以块为单位加密数据, 而不是逐个字节地加密数据.

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Finally, antinoise performance of encrypted image based on block cipher is analyzed.

此外，对采用基于位运算方法加密BMP图像的抗噪声性能也进行了分析。

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Block cipher in output feedback mode is used to implement the end-to-end key stream generator.

系统使用分组密码的输出反馈模式实现端 - 端密钥序列发生器.

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Determine the block size. If a block cipher is used.

如果使用分组密码,就确定分组的大小.

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A perfect block cipher scheme with cipher block chaining model is described for a symmetric encryption algorithm based on the chaotic attractors in discrete Hopfield neural networks.

离散Hopfield神经网络存在混沌吸引子，基于此可以构造新的加密算法。

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I use a block cipher algorithm for encryption that requires the clear data bytes to be in blocks of8 bytes, so I pad the last incomplete block with some characters.

我对需要将明文数据字节放在8字节块的加密使用块密码算法，所以我用一些字符填充最后一个不完整的块。

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A novel family of frequency hopping sequences based on iterated block cipher is proposed for frequency-hopping multiple-access ( FHMA) communications.

基于迭代型分组密码的理论体系，本文从工程实现的角度提出了一种用于跳频码分多址通信系统的新型跳频序列族构造方法。

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RC2 is a block cipher algorithm.

RC2是一个块密码算法。

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Information technology Security techniques Data integrity mechanism using a cryptographic check function employing a block cipher algorithm

GB15852-1995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

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The encryption scheme in modern cryptography includes symmetric encryption and asymmetric encryption and the former is further classified as block cipher, stream cipher and hash function.

现代密码学中加密算法包括对称加密和非对称加密，前者又分为分组密码，流密码和Hash函数。

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Camellia was chosen as European block cipher standard in February 2002 because of the excellent performance in various platform and its withdrawing many attack ways.

由于Camellia算法在各种平台都表现出了卓越的密码性能，并且经受住了来自各种攻击的考验。2002年2月，Camellia算法被遴选为普通型分组密码标准。

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Performance of four alternative hardware architectures of the symmetric block cipher using an alternative hardware technology based on Field Programmable Gate Arrays ( FPGA) is discussed and compared.

介绍和讨论基于FPGA的硬件技术实现分组加密算法时所采用的4种结构及其性能。

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The Hardware Implementation of a New Symmetric Block Cipher Algorithm Based on PCMCIA

基于PCMCIA接口数据加密算法的硬件实现

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From the security point of view, China should design a block cipher as core algorithm of F8 and F9.

从安全性角度考虑，我国需要自主设计一个分组密码作为F8和F9的内核算法。

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The block cipher remedies partially some flaws of the known chaotic cryptosystem.

该算法弥补了已有混沌密码系统的一些固有缺陷.

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In this paper , randomness evaluation of cryptography and block cipher is selected as a research instance.

检测评估是研究密码算法安全性的重要技术手段.

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Using vc ++ implementation aes algorithm, the block cipher Xiang-depth study in depth to do thorough research.

用vc++实现aes算法, 对分组密码学做深入深入祥彻的研究.

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Trial disposing is presented to satisfy block cipher and will achieve the optimal with space and time consumption by classification disposing according to different document sizes.

文中还提出了一种文件尾端处理方法以适应分组加解密的要求，并对不同文件大小采用分类处理策略以达到优化时空消耗的目的。

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The Advanced Encryption Standard ( AES) issued by the National Institude of Standards and Technology ( NIST) of the USA in 2001, is supposed to replace DES, and has become the new widely-used symmetric block cipher standard.

高等加密标准（AES）是美国国家标准技术局（NIST）于2001年发布的，用于取代DES成为广泛应用的对称分组加密标准。

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Software of brute force attack on block cipher algorithms is designed based on distributed computing.

暴力破解分组密码算法是密码学的重要研究方向.

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Based on the 3DES block cipher frequency-hopping ( FH) sequences, the paper suggests a kind of packet protocol for frequency-hopping multiple-access ( FHMA) networks.

基于3DES迭代型分组密码产生的跳频序列，构造了一种跳频组网的随机多址接入方案模型。

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However, block cipher algorithms tend to execute more slowly than stream ciphers.

但是, 块密码算法执行起来通常比流密码慢.

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AES ( advanced encryption standard ) block cipher algorithm has been adopted as the block encryption standard.

AES是 新的分组对称加密算法高级加密标准,源自比利时人Daemen和Rijmen共同设计的Rijndael算法.

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Rijndael encryption algorithm is the grouping variable length block cipher.

Rijndael加密算法 是分组长度可变的分组密码.

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Development and Comment of Symmetric Key Block Cipher Modes of Operation

分组密码工作模式发展动态及简评

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At the beginning of 2001, the Symmetric Key Block Cipher Modes of Operation Workshop sponsored by NIST plans to develop a new mode standard that will be suitable for other symmetric key block cipher algorithms and AES.

2001年初，NIST分组密码运行模式工作组提出建议，计划制定新的工作模式标准（FIPS），以适应AES和其它分组密码算法发展的需要。

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The spread of chaos and key block cipher algorithm is the basic principle of design.

混乱和密钥扩散是分组密码算法设计的基本原则.

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Based on block cipher FH sequences, we propose a generation method of AFH sequence.

在分组密码跳频序列的基础上，提出了一种适合于自适应跳频通信系统的跳频序列产生方法。

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