Cipher_demo
参考：Java使用Cipher类实现加密，包括DES，DES3，AES和RSA加密 - 蔡昭凯 - 博客园 (cnblogs.com)
Main.java
1 package com.hmb; 2 3 import javax.crypto.*; 4 import javax.crypto.spec.IvParameterSpec; 5 import javax.crypto.spec.SecretKeySpec; 6 import java.security.InvalidAlgorithmParameterException; 7 import java.security.InvalidKeyException; 8 import java.security.NoSuchAlgorithmException; 9 import java.util.Base64; 10 11 public class Main { 12 public static void main(String[] args) { 13 String content = "hmb"; 14 String salt = "saltsaltsaltsalt"; 15 String iv = "iviviviviviviviv"; 16 17 try { 18 Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); 19 SecretKey secretKey = new SecretKeySpec(salt.getBytes(), "AES"); 20 IvParameterSpec ivParameterSpec = new IvParameterSpec(iv.getBytes()); 21 cipher.init(Cipher.ENCRYPT_MODE, secretKey, ivParameterSpec); 22 byte[] encrypted = cipher.doFinal(content.getBytes()); 23 String encryptedStr = Base64.getEncoder().encodeToString(encrypted); 24 System.out.println(encryptedStr); 25 26 byte[] decrypted = Base64.getDecoder().decode(encryptedStr); 27 Cipher decriptCipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); 28 decriptCipher.init(Cipher.DECRYPT_MODE, secretKey, ivParameterSpec); 29 byte[] contentDecrypt = decriptCipher.doFinal(decrypted); 30 String decryptStr = new String(contentDecrypt); 31 System.out.println(decryptStr); 32 } catch (NoSuchAlgorithmException e) { 33 throw new RuntimeException(e); 34 } catch (NoSuchPaddingException e) { 35 throw new RuntimeException(e); 36 } catch (InvalidAlgorithmParameterException e) { 37 throw new RuntimeException(e); 38 } catch (InvalidKeyException e) { 39 throw new RuntimeException(e); 40 } catch (IllegalBlockSizeException e) { 41 throw new RuntimeException(e); 42 } catch (BadPaddingException e) { 43 throw new RuntimeException(e); 44 } 45 46 } 47 }
执行结果
