package com.iformall.utils; import org.bouncycastle.jce.provider.BouncyCastleProvider; import javax.crypto.Cipher; import javax.crypto.spec.SecretKeySpec; import java.security.Security; public class CipherUtil { /** * 密钥算法 */ private static final String ALGORITHM = "AES"; /** * 加解密算法/工作模式/填充方式 */ private static final String ALGORITHM_MODE_PADDING = "AES/ECB/PKCS7Padding"; static { try { Security.addProvider(new BouncyCastleProvider()); } catch (Exception e) { e.printStackTrace(); } } /** * AES解密 */ public static String decryptData(byte[] b, String serectKey) throws Exception { Cipher cipher = Cipher.getInstance(ALGORITHM_MODE_PADDING); SecretKeySpec key = new SecretKeySpec(HashUtil.md5(serectKey).toLowerCase().getBytes(), ALGORITHM); cipher.init(Cipher.DECRYPT_MODE, key); return new String(cipher.doFinal(b)); } /** * decryptReqInfo * @param req_info * @param key * @return * @throws Exception */ public static String decryptReqInfo(String req_info, String key) throws Exception { byte[] b = Base64Util.decode(req_info); String B = decryptData(b, key); return B; } public static void main(String[] args) throws Exception { String A = "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"; String B = decryptReqInfo(A, "XHZfpVA0NzoXgLEjsujctUTcyj8Zur2C"); System.out.println(B); } }