rsa algorithm in java

It is very difficult to find an algorithm that guarantees linear time performance. There are also some simple methods to improve the weighted fast merging algorithm. Ideally, we want each node to be connected directly to its root, but don't want to change the number of lines as fast-merging algorithms do. We can simply connect all the nodes we have checked to the root to get close to the ideal situation. We

PackageCom.swift;ImportJava.io.File;ImportJava.io.FileFilter;ImportJava.io.FileInputStream;ImportJava.io.FileOutputStream; Public classIo_filefilter { Public Static voidMain (string[] args)throwsexception{/** Write a program to copy all the. java files under the E:\neck directory to the E:\jpg directory and change the original file extension from. java to. jpg*/file[] File=NewFile ("E:\\neck"). Listfiles (N

Outline eight sorting algorithms Needless to say, the basic programmer algorithm must be mastered, and now summarize the deepening of memory. is the classification, name, time space complexity, and stability of the eight sorting algorithms.Code below is the classic eight sorting algorithm Java and Python code, are based on the classic

} + } - $ //get the position index to start matching $ if(J = =sub.length ()) { -index = i-sub.length (); - } the returnindex; - }Wuyi}//1 //testing of the KMP algorithm2 Public classTest {3 /**4 * @paramargs5 */6 Public Static voidMain (string[] args) {7String src = "Aaaaaaab";8String sub = "Abcdabdabd";9 int[] Next =Kmp.getnext (sub);Ten //int[] Next = LENGTHKMP (Sub.tochararray ()); One for(

(inti = 0;i ) {J=Map[start].get (i). b; if(Dfn[j] = =-1) {//Vertex J is not traversedDFS (map, j); Low[start]=math.min (Low[start], low[j]); } Else if(Instack[j]) {Low[start]=math.min (Low[start], dfn[j]); } } if(Dfn[start] = =Low[start]) {System.out.print ("Strongly connected components:"); Do{J=Stack.pop (); System.out.print (J+" "); INSTACK[J]=false; } while(Start! =j); System.out.println (); } return; } Public Static voidMain (string[] args) {main test=N

){ + return1; -}Else{ the if(!Map.containskey (n)) { *Map.put (n, Fibo2 (n-1) + Fibo2 (n-2)); $ }Panax Notoginseng returnmap.get (n); - } the } + A @Test the Public voidtest1 () { + LongStart =System.currenttimemillis (); - Longresult = Fibo (50); $ LongEnd =System.currenttimemillis (); $SYSTEM.OUT.PRINTLN ("Calculated result:" +result); -SYSTEM.OUT.PRINTLN ("Time Consuming:" + (End-start) + "millis

The adjacent elements in the array are paired with 22, sorted by the merge algorithm, forming a well-ordered sub-array of length 2 of the N/2 group, and then arranged into a sub-array of length 4, so continue until the entire array is ordered.According to this idea, the elimination of recursive merge sorting algorithm (pseudo code) is as follows:public class MergeSort {public static void MergeSort (Comparab

1. The Euclidean algorithm in the background is a fast algorithm to find the maximum factor. If M,n has the largest factor k, assuming m=x*n+r, then M and n can complete K, then R can certainly divide K because theorem: if m>n, then the M mod NPackage Algorithm_analysis;public class Euclid {public static void main (string[] args) {int m=63;int n=18;int remainder=0; while (n!=0) { remainder=m%n; M=n; N=re

1.Prim algorithm Core ideaPrim algorithm is also a typical example of greedy algorithm, somewhat similar to the Dijkstra algorithm. Core idea: Divides the point into two dials, has joined the smallest spanning tree, has not joined, finds the point which is not joined the nearest set of distances, adds the point, modifi

for each pair of inputs.Properties: Fast find algorithm to solve the connectivity problem of N objects, M-merge operation is required, at least the MN-bar instruction is executed.Modern computer computing ability is very strong, if M and n are small, the algorithm has little impact on performance, but in modern applications, it may be necessary to deal with billions of objects and millions of input pairs,

PackageCom.swift; Public classDigui_return { Public Static voidMain (string[] args) {/** Recursive algorithm question 2 the first 1 person 10, 2nd than the 1th People's Congress 2 years old, in turn recursive, please use recursion to calculate how big the 8th person? */ intnum = 8; System.out.println ("The 8th person's age is" +Old (num)); } Public Static intOldintnum) { if(num = = 1) { return10; } Else { return

Originally is a very simple question, the big God uses the five elements code to fix, I have to use 40 lines of code, but just realize the next KMP algorithm, is also a kind of study. The topics are as follows: In fact, is a string matching problem, match to where, on the output where the subscript, otherwise output-1. When I saw this topic, I thought of the KMP algorithm, originally thought to save time a

Decompress the 7Zip special compression algorithm file and the 7zip Compression Algorithm in the Java project.1. Problem DescriptionJava Web backend downloads a zip file compressed by a special algorithm. Because java itself cannot be used to decompress the file, you must us

In fact, with the previous article "the prelude to learning DES encryption algorithms" as the basis, it is easy to implement the DES algorithm.However, I found the source code from the Internet, written in Java, and written in C ++, but all the code seems to be the same. Why is it the same? At the beginning, I wrote a class and added all the methods to the class. I guess it would be hard to implement it once if it wasn't the author's skill. In additio

;}public void process (String arr,int lengthnow) {if (LengthLength=lengthnow;}for (int i = 0; i if (Using[i] >= 2) continue;int c = Repeat (arr, str[i]);if (C > 0) {using[i]++;Process (Str[i], Lengthnow + str[i].length ()-c);using[i]--;}} }public static void Main (string[] args) {Scanner s=new Scanner (system.in);JavaApplication1 java=new JavaApplication1 ();Java.n=s.nextint ();for (int i=0;iJava.str[i]=s.next ();java.using[i]=0;}String Tou=new string

algorithm)Miller Rabin algorithm (prime number test algorithm)Resources Digital signatures Encryption One-way hashing algorithm Symmetric encryption algorithm Asymmetric encryption algorithm