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| | |
| | | package com.ruoyi.account.util.weChat; |
| | | |
| | | import org.bouncycastle.jce.provider.BouncyCastleProvider; |
| | | |
| | | import javax.crypto.BadPaddingException; |
| | | import javax.crypto.Cipher; |
| | | import javax.crypto.IllegalBlockSizeException; |
| | | import javax.crypto.NoSuchPaddingException; |
| | | import javax.crypto.spec.IvParameterSpec; |
| | | import javax.crypto.spec.SecretKeySpec; |
| | | import java.security.*; |
| | | |
| | | /** |
| | | * AES加密 |
| | | * @author pzb |
| | | * @Date 2021/12/3 15:43 |
| | | */ |
| | | public class AES { |
| | | |
| | | public static boolean initialized = false; |
| | | |
| | | /** |
| | | * AES解密 |
| | | * |
| | | * @param content |
| | | * 密文 |
| | | * @return |
| | | * @throws InvalidAlgorithmParameterException |
| | | * @throws NoSuchProviderException |
| | | */ |
| | | public byte[] decrypt(byte[] content, byte[] keyByte, byte[] ivByte) throws InvalidAlgorithmParameterException { |
| | | initialize(); |
| | | try { |
| | | Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding"); |
| | | Key sKeySpec = new SecretKeySpec(keyByte, "AES"); |
| | | cipher.init(Cipher.DECRYPT_MODE, sKeySpec, generateIV(ivByte));// 初始化 |
| | | byte[] result = cipher.doFinal(content); |
| | | return result; |
| | | } catch (NoSuchAlgorithmException e) { |
| | | e.printStackTrace(); |
| | | } catch (NoSuchPaddingException e) { |
| | | e.printStackTrace(); |
| | | } catch (InvalidKeyException e) { |
| | | e.printStackTrace(); |
| | | } catch (IllegalBlockSizeException e) { |
| | | e.printStackTrace(); |
| | | } catch (BadPaddingException e) { |
| | | e.printStackTrace(); |
| | | } catch (NoSuchProviderException e) { |
| | | // TODO Auto-generated catch block |
| | | e.printStackTrace(); |
| | | } catch (Exception e) { |
| | | // TODO Auto-generated catch block |
| | | e.printStackTrace(); |
| | | } |
| | | return null; |
| | | } |
| | | |
| | | public static void initialize() { |
| | | if (initialized) |
| | | return; |
| | | Security.addProvider(new BouncyCastleProvider()); |
| | | initialized = true; |
| | | } |
| | | |
| | | // 生成iv |
| | | public static AlgorithmParameters generateIV(byte[] iv) throws Exception { |
| | | AlgorithmParameters params = AlgorithmParameters.getInstance("AES"); |
| | | params.init(new IvParameterSpec(iv)); |
| | | return params; |
| | | } |
| | | } |