Category: Java

In cryptography, Triple DES (3-DES) is a symmetric-key block cipher, which applies the Data Encryption Standard (DES) cipher algorithm three times to each data block.

RSA is an asymmetric cryptographic algorithm used by modern computers to encrypt and decrypt messages. Asymmetric means that there are two different keys. This is also called public-key cryptography because one of the keys can be given to anyone. The other key must be kept private.

This post will discuss how to determine if an array is empty in JavaScript.

The Playfair cipher is a manual symmetric encryption technique and was the first literal diagram substitution cipher.

This post will discuss how to remove a prefix from a string in JavaScript.

Write a C/C++ program to solve given simultaneous pairs of Linear Congruence Equations using the Chinese remainder theorem.

A cyclic group is a group that is generated by a single element. That means that there exists an element g, say, such that every other element of the group can be written as a power of g. This element g is the generator of the group.

This post will discuss how to delete the last element from an array in JavaScript.

This post will discuss how to remove all punctuations from a string in JavaScript.

This post will discuss how to determine if two arrays are equal in JavaScript.

The Hill cipher is a polygraphic substitution cipher based on linear algebra. It was the first polygraphic cipher in which it was practical to operate on more than three symbols at once.

The ElGamal encryption is an asymmetric key encryption algorithm for public-key cryptography, which is based on the Diffie–Hellman key exchange. It can be defined over any cyclic group G. Its security depends upon the difficulty of a certain problem in G related to computing discrete logarithms.