Java - DES Encryption and Decryption example
Key Concepts Symmetric Encryption : DES (Data Encryption Standard) is a symmetric key encryption algorithm, meaning the same key is used for both encryption and decryption. DES Algorithm : DES uses a 56-bit key (plus 8 bits for parity) to encrypt blocks of data (64 bits each). It performs several complex transformations (16 rounds of encryption) to secure the data. Java Cryptography Architecture (JCA) : The javax.crypto package provides the necessary tools for implementing encryption and decryption, including key generation, cipher operations, and transformations. Here’s an example of using the DES (Data Encryption Standard) algorithm in Java for encryption and decryption. This example uses the javax.crypto package, which provides a straightforward way to implement cryptographic algorithms. Code Example import javax.crypto.Cipher; import javax.crypto.KeyGenerator; import javax.crypto.SecretKey; import javax.crypto.spec.SecretKeySpec; import java.util.Base64; public class DESEn...