一种通过判断网卡地址来控制软件使用期限的算法，简单有效。...

为一个字节或字符数组或串计算md5值，内部只创建一个数组，节省分配时间，节省内存 完全是static方法，线程安全 注意对返回值的处理，见注释-for a byte array or character string or md5 value calculation, only to create an internal array, saving time allocated to save memory is completely static method, thread-safe attention to the return value, see note

超级增强断点源代码!配合trw2000和sice 使用!可以调试一些反调试的外壳和程序! 用vc编译-Super enhance breakpoint source code! Sice tie trw2000 and use! Some anti-debugging can debug shell and procedures! Compiling with vc

DES算法程序，此程序为完整的程序，可以直接下载使用-DES algorithm procedure, this procedure for the complete procedure, can be directly downloaded using

一个使用des加密传输的unix下的login程序的服务器端和客户端- Uses des to encrypt under the transmission unix login procedure server end and the customer end

Find the highest (maximum) and lowest (minimum) grades in an array of 25 integer grades. Print the array and print the highest and lowest grades, labeled appropriately.-Find the highest (maximum) and lowest (minimum) grades in an array of 25 integer grades. Print the array and print the highest and lowest grades, labeled appropriately.

delphi加密组件-delphi encryption components

希尔排序算法: 基本思想：将整个无序序列分割成若干小的子序列分别进行插入排序。 序列分割方法：将相隔某个增量h的元素构成一个子序列。在排序过程中，逐次减小这个增量，最后当h减到1时，进行一次插入排序，排序就完成。增量序列一般采用：ht=2t-1,1≤t≤[log2n]，其中n为待排序序列的长度。-Hill sorting algorithm: the basic idea: the whole sequence disorder is separated into a number of small sub-sequences respectively Insertion Sort. Sequence segmentation method: h will be separated by an incremental elements constitute a subset of sequences. In the sort process, the successive decrease of the increment, and finally reduced to one when h when an insertion sort, sort completed. Incremental sequence generally use: ht = 2t-1, 1 ≤ t ≤ [log2n], in which n is the length of sequence to be sorted.

这个是RSA加密算法C源程序，希望对需要的朋友有所帮助-This is the RSA encryption algorithm C source code, and they hope to help a friend in need

PB使用MD5加密,可以有效解决PB开发中登录密码使用明文的问题-PB using MD5 encryption, can effectively resolve the PB Password development issue of the use of explicit

SHA-2 的代码实现-SHA-2 source implementation