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Description: 在现在信息的安全性得到了重视，水印技术在信息隐藏中是一种新的方法。这篇文章能够帮助我们理解水印技术。-now information security has been the focus of attention, watermark technology in the Information Hiding is a new approach. This article can help us to understand watermarking technology.
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Author: 王清华 |
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Description: IDEA是一个分组长度为64位的分组密码算法，密钥长度为128位（抗强力攻击能力比DES强），同一算法既可加密也可解密。
IDEA的“混淆”和“扩散”设计原则来自三种运算，它们易于软、硬件实现（加密速度快）：
-IDEA is a packet length of the 64 block cipher algorithms, key length of 128 (anti strong offensive capability than-DES), the same encryption algorithm can be declassified. IDEA's "confusion" and "proliferation" design principles from the three operators, easy software and hardware to achieve (encryption speed) :
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Size: 8375 |
Author: HCJ |
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Description: 一个应用密码学的源代码，主要完成应用密码方面的功能。-a Cryptographic Application source code, application code to complete the function.
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Size: 4088 |
Author: 成名 |
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Description: IDEA加密算法属于数据块加密算法(Block Cipher)类。IDEA使用长度为128bit的密钥，数据块大小为64bit。-IDEA encryption algorithm is data block encryption algorithm (Cipher Block) category. IDEA use of the length of the 128 bit key, the data block size for 64bit.
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Size: 30720 |
Author: zhou |
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Description: DES是一种分组密码。假定明文m是由0和1组成的长度为64位的符号串，密钥k也是64位的0、1符号串。-DES is a block cipher. M is expressly assumed by 0 and a length of 64 strings of symbols, as well as key k 0 64, a string of symbols.
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Size: 2048 |
Author: 蓝色简单 |
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Description: 对spn分组密码基于用同一个密钥加密后的周期的漏洞分析-Spn block cipher based on the same cycle after the key encryption vulnerability analysis
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Size: 4096 |
Author: lws |
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Description: Verilog实现AES加密算法
密码模块作为安全保密系统的重要组成部分，其核心任务就是加密数据。分组密码算法AES以其高效率、低开销、实现简单等特点目前被广泛应用于密码模块的研制中。密码模块一般被设计成外接在主机串口或并口的一个硬件设备或是一块插卡，具有速度快，低时延的特点。而从整体发展趋势来看，嵌入式密码模块由于灵活，适用于多种用户终端、通信设备和武器平台，将会得到更加广泛的应用-AES encryption algorithm realize Verilog module password security system as an important part of its core mission is to encrypt the data. AES block cipher algorithm for its high efficiency, low overhead, simple features such as the current password is widely used in research and development modules. Password modules are generally designed to host external serial or parallel port of a hardware device or a card with a high speed, low latency characteristics. From the overall development trend, the embedded code module as a result of flexible and applicable to many user terminals, communications equipment and weapons platforms, will be more widely applied
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Size: 79872 |
Author: yuansuchun |
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Description: AES作为新型分组密码算法，已与多种信息安全产品相结合，该源码程序层次清楚，方面使用。-AES as a new block cipher algorithm, with a wide range of information security products combine the level of the source program clearly use.
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Size: 1400832 |
Author: tangming |
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Description: SMS4是国内第一个公布的商用分组密码算法，其重要应用性可想而知。源码中包括C代码和verilog源码。-SMS4 is the first announced commercial block cipher algorithm, its important application can be imagined. Includes C source code and Verilog source code.
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Size: 5409792 |
Author: tangming |
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Description: 分组密码算法,可用于文件加密
该算法是NIST征集AES的最终5个候选算法之一,设计者是著名的密码学家Rivest-Block cipher algorithm, can be used for file encryption of the AES algorithm is NIST final assembly candidate Algorithm 5, one of the designers of the famous cryptographer Rivest
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Size: 2048 |
Author: che wang |
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Description: 介绍分组密码的工作模式，包括CBC,OFB,CFB,ECB-Introduced the block cipher mode of operation, including the CBC, OFB, CFB, ECB
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Size: 198656 |
Author: 李为 |
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Description: 对称/分组密码一般分为流加密(如OFB、CFB等)和块加密(如ECB、CBC等)。对于流加密，需要将分组密码转化为流模式工作。对于块加密(或称分组加密)，如果要加密超过块大小的数据，就需要涉及填充和链加密模式，文中提到的ECB和CBC等就是指链加密模式。 本文将要介绍了AES对称加密/分组加密/流密码及其ECB、CBC、CFB、OFB和CTR五种对称加密模式。-Symmetric/block ciphers are generally divided into stream encryption (eg, OFB, CFB, etc.) and block encryption (such as ECB, CBC, etc.). For streaming encryption, block cipher needs to be translated into the work flow model. The encryption block (or block cipher), If you want to encrypt the data block size more than on the need to involve filling and chain encryption mode, the text referred to, such as ECB and CBC encryption mode refers chain. This paper will be introduced the AES symmetric encryption/packet encryption/stream cipher and the ECB, CBC, CFB, OFB and CTR mode in five symmetric encryption.
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Author: 王纪 |
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Description: ES（The Advanced Encryption Standard）是美国国家标准与技术研究所用于加密电子数据的规范。它被预期能成为人们公认的加密包括金融、电信和政府数字信息的方法。
AES 是一个新的可以用于保护电子数据的加密算法。明确地说，AES 是一个迭代的、对称密钥分组的密码，它可以使用128、192 和 256 位密钥，并且用 128 位（16字节）分组加密和解密数据。与公共密钥密码使用密钥对不同，对称密钥密码使用相同的密钥加密和解密数据。通过分组密码返回的加密数据 的位数与输入数据相同。迭代加密使用一个循环结构，在该循环中重复置换（permutations ）和替换(substitutions）输入数据。Figure 1 显示了 AES 用192位密钥对一个16位字节数据块进行加密和解密的情形。-ES (The Advanced Encryption Standard) are the United States National Institute of Standards and Technology for encrypting electronic data specification. It is expected to become the recognized encryption including financial, telecommunications and government figure information.
AES is a new electronic data can be used to protect the encryption algorithm. Specifically, AES is an iterative, symmetric-key password packet, it can use the keys 128,192 and 256, and with 128 (16 bytes) packet encryption and decryption of data. Password and public key to use of different keys, symmetric keys use the same password key encryption and decryption of data. Back through the block cipher encryption of data and input data the same as the median. Encrypted using a cycle of iterative structure, in the replacement cycle to repeat (permutations) and replacement (substitutions) input data. Figure 1 shows the AES with 192 keys on a 16-byte data block for encryption and decryption case.
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Size: 1024 |
Author: 皮艾尔 |
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Description: AES Block Cipher Calculator. Given key and input string, encrypts to AES standards. Java source code.
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Size: 36864 |
Author: Git |
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Description: RC5 block cipher.
This implementation is FREEWARE, you may use this implementation freely. You
have permission to modify any of the files included in this archive provided you
do not redistribute these files. If you wish to redistribute these
implementations you may do so provided all the files in this archive are kept
intact and unmodified. If you do redistribute these files please email me and
tell me (if you upload to a BBS/web site/ftp site etc), this is not a requirement
but it is nice to know who is using these implementations.
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Size: 8192 |
Author: Hit8 |
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Description: A chaotic block cipher algorithm for image cryptosystems
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Size: 3587072 |
Author: Ahmed |
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Description: The c++ code of a lightweight block cipher MIBS
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Size: 2048 |
Author: snowtiger521 |
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Description: A chaotic block cipher algorithm for image cryptosystems
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Size: 3587072 |
Author: Ahmed |
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Description: block cipher encryption code
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Size: 7168 |
Author: gaeib |
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Description: SIMULATION AND SYNTHESIS OF TRIPLE-DES BLOCK CIPHER USING VHDL
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Size: 11264 |
Author: saipraveen |
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