根据达芬奇密码编写的算法程序，用以预测中奖彩票号码，纯属娱乐。
According to The Da Vinci Code written algorithm program to predict the winning lottery numbers, purely entertainment. (2014-09-26, C/C++, 4494KB, 下载6次)
数据加密算法（Data Encryption Algorithm，DEA）是一种对称加密算法，很可能是使用最广泛的密钥系统，特别是在保护金融数据的安全中，最初开发的DEA是嵌入硬件中的。
Data Encryption Algorithm (Data Encryption Algorithm, DEA) is a symmetric encryption algorithm, is probably the most widely used key system, especially in the security of financial data, originally developed DEA is embedded in the hardware. (2013-11-30, C/C++, 283KB, 下载1次)
AES加密过程是在一个4×4的字节矩阵上运作，这个矩阵又称为“体（state）”，其初值就是一个明文区块（矩阵中一个元素大小就是明文区块中的一个Byte）。（Rijndael加密法因支持更大的区块，其矩阵行数可视情况增加）加密时，各轮AES加密循环（除最后一轮外）均包含4个步骤：
1.AddRoundKey — 矩阵中的每一个字节都与该次回合金钥（round key）做XOR运算；每个子密钥由密钥生成方案产生。
2.SubBytes — 通过一个非线性的替换函数，用查找表的方式把每个字节替换成对应的字节。
3.ShiftRows — 将矩阵中的每个横列进行循环式移位。
4.MixColumns — 为了充分混合矩阵中各个直行的操作。这个步骤使用线性转换来混合每内联的四个字节。
最后一个加密循环中省略MixColumns步骤，而以另一个AddRoundKey取代。
AES encryption process operates on a 44 byte matrix, this matrix is also known as " body (state), its initial value is a plaintext block (matrix element size is expressly block Byte ). (Rijndael encryption support larger blocks, the number of rows of the matrix, depending on the circumstances increase) encryption, each round of AES encryption cycle (except for the last one) contains four steps: 1.AddRoundKey- matrix a byte with the second leg (round key), key do XOR operation each sub-key generated by the key generation program. 2.SubBytes- replaced by a non-linear function using a lookup table of each byte is replaced by the corresponding byte. 3.ShiftRows- each row of the matrix is a cyclic shift. 4.MixColumns- to be sufficiently mixed in the matrix, the operation of the respective straight. This step uses the linear conversion by mixing the four bytes of each inline. The last encryption cycle MixColumns step is omitted, and substituted with another A (2012-08-25, C/C++, 18KB, 下载3次)
BCR 分组密码加密算法 穷举攻击的Ｃ语言实现，双核双线程
ＢＣＲ block cipher attack (2011-04-11, C/C++, 1KB, 下载3次)
数据加密算法（Data Encryption Algorithm，DEA）的数据加密标准（Data Encryption Standard，DES）是规范的描述，它出自IBM 的研究工作，并在 1977 年被美国政府正式采纳。它是一种对称加密算法，很可能是使用最广泛的密钥系统，特别是在保护金融数据的安全中，最初开发的 DES 是嵌入硬 件中的。通常，自动取款机（Automated Teller Machine，ATM）都使用 DES。
Data encryption algorithm (Data Encryption Algorithm, DEA) data encryption standard (Data Encryption Standard, DES) is a standard description of it from IBM' s research work, and in 1977 formally adopted by the U.S. government. It is a symmetric encryption algorithm, is probably the most widely used key systems, particularly in protecting the security of financial data, the initial development of the DES is embedded in hardware. Typically, ATM (Automated Teller Machine, ATM) use DES. (2010-05-31, C/C++, 4KB, 下载1次)
網路資訊安全利用金鑰加密明文，以XOR方法，並解密。
Network security encryption key used expressly to XOR method, and decryption. (2010-05-04, C/C++, 2KB, 下载2次)
对简化后的三级火箭用龙哥库塔函数进行了振动模型仿真，同时具备图像输出功能
Three pairs of simplified vibration model rocket for the simulation at the same time with the image output function (2009-08-27, C/C++, 3KB, 下载7次)
DS8007 双智能卡读卡DEMO源代码。
DS8007 dual smart card reader DEMO source code. (2009-04-26, C/C++, 142KB, 下载125次)
内核加解密算法 加解密函数库及其使用说明，详见附件。 find_cipher_by_name中参数ciphername可取的值为下面的组合，对应不同的模式: (des,des_ede3,aes,blowfish,cast5,dfc,idea,mars,rc5,rc6,serpent,twofish)-ecb (des,des_ede3,aes,blowfish,cast5,dfc,idea,mars,rc5,rc6,serpent,twofish)-cbc (des,des_ede3,aes,blowfish,cast5,dfc,idea,mars,rc6,serpent,twofish)-cfb struct cipher_implementation* ci中对应的可调用的method：encrypt_iv decrypt_iv encrypt decrypt 比如以des-cbc为find_cipher_by_name的参数得到的ci调用encrypt_iv，decrypt_iv. find_digest_by_name中参数digestname可取的值: sha1 md5 struct digest_implementation* di中对应的可调用的method:open update digest close hmac 计算digest时调用di->digest，计算hmac时调用di->hmac. 注意：加载我们需要的cipher-*.o和digest-*.o之前需先加载cryptoapi.o。
core encryption and decryption algorithm encryption and decryption functions and their use, as detailed in the annex. Find_cipher_by_name cipher desirable parameter values to the following portfolio, dealing with different modes : (des, des_ede3, Aes, blowfish, cast5, DFC, the idea, mars, RC5, production, serpent, twofish)- ecb ( des, des_ede3, Aes, blowfish, cast5, DFC, the idea, mars, RC5, production, serpent, twofish)- cbc (des, des_ede3, Aes, blowfish, cast5, DFC, the idea, mars, production, the serpent , twofish)- Sample struct cipher_implementation ci* corresponding the available method : encrypt_iv decrypt_iv encrypt decrypt such as a des-cbc find_cipher_by_name parameters for the ci call encrypt_iv, decrypt_iv. find_digest_by_name digestname desirable parameter values : sha1 md (2005-07-13, C/C++, 136KB, 下载289次)