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import javax.crypto.Cipher; import javax.crypto.KeyGenerator; import javax.crypto.SecretKey; import java.util.Base64; public class BlowFishCipher { public static void main(String[] args) throws Exception { // Generate Blowfish key KeyGenerator keyGenerator = KeyGenerator.getInstance("Blowfish"); SecretKey secretKey = keyGenerator.generateKey(); // Initialize cipher for encryption Cipher cipher = Cipher.getInstance("Blowfish"); cipher.init(Cipher.ENCRYPT_MODE, secretKey); // Input text to encrypt String inputText = "Hello World"; byte[] encrypted = cipher.doFinal(inputText.getBytes()); // Convert encrypted bytes to Base64 for readable output String encryptedText = Base64.getEncoder().encodeToString(encrypted); // Initialize cipher for decryption cipher.init(Cipher.DECRYPT_MODE, secretKey); byte[] decrypted = cipher.doFinal(encrypted); // Convert decrypted bytes back to string String decryptedText = new String(decrypted); // Print results System.out.println("Original String: " + inputText); System.out.println("Encrypted (Base64): " + encryptedText); System.out.println("Decrypted: " + decryptedText); } }
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