文章内容
在项目中使用RSA加密解密，但是对于稍微有点长度的明文加密时，RSA就会提示加密内容过长，导致加密失败。所以在项目中对于请求参数过多的接口使用AES加密解密。
1、Java后台代码
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | import javax.crypto.Cipher;import javax.crypto.spec.IvParameterSpec;import javax.crypto.spec.SecretKeySpec; import sun.misc.BASE64Decoder;public class AESUtil {static String key = "0123456789abcdef"; //16位 static String iv = "0123456789abcdef"; //16位 public static void main(String args[]) throws Exception { System.out.println(encryptAES("*****")); System.out.println(decryptAES(encryptAES("123456"))); } public static String encryptAES(String data) throws Exception { try { Cipher cipher = Cipher.getInstance("AES/CBC/NOPadding"); //参数分别代表 算法名称/加密模式/数据填充方式 int blockSize = cipher.getBlockSize(); byte[] dataBytes = data.getBytes(); int plaintextLength = dataBytes.length; if (plaintextLength % blockSize != 0) { plaintextLength = plaintextLength + (blockSize - (plaintextLength % blockSize)); } byte[] plaintext = new byte[plaintextLength]; System.arraycopy(dataBytes, 0, plaintext, 0, dataBytes.length); SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(), "AES"); IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes()); cipher.init(Cipher.ENCRYPT_MODE, keyspec, ivspec); byte[] encrypted = cipher.doFinal(plaintext); return new sun.misc.BASE64Encoder().encode(encrypted); } catch (Exception e) { e.printStackTrace(); return null; } } public static String decryptAES(String data) throws Exception { try { byte[] encrypted1 = new BASE64Decoder().decodeBuffer(data); Cipher cipher = Cipher.getInstance("AES/CBC/NOPadding"); SecretKeySpec keyspec = new SecretKeySpec(key.getBytes("UTF-8"), "AES"); IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes("UTF-8")); cipher.init(Cipher.DECRYPT_MODE, keyspec, ivspec); byte[] original = cipher.doFinal(encrypted1); String originalString = new String(original); return originalString; } catch (Exception e) { e.printStackTrace(); return null; } }} |
2、js实现代码
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01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | <!doctype html><html lang="en"><head> <meta charset="utf-8"> <title>AES TEST</title></head><body><p>待加密值：123456RWEQR</p><p id="p1"></p><p id="p2"></p> <script type="text/javascript" src="js/jquery-1.12.0.min.js"></script><script type="text/javascript" src="js/crypto-js.js"></script><script type="text/javascript"> $(function () { var data = "123456RWEQR"; var key = CryptoJS.enc.Latin1.parse('abcdef0123456789'); var iv = CryptoJS.enc.Latin1.parse('0123456789abcdef'); //加密 var encrypted = CryptoJS.AES.encrypt(data, key, { iv: iv, mode: CryptoJS.mode.CBC, padding: CryptoJS.pad.ZeroPadding }); $("#p1").text("加密结果："+encrypted.toString()); console.log(encrypted.toString()) //解密 var decrypted = CryptoJS.AES.decrypt(encrypted, key, {iv: iv, padding: CryptoJS.pad.ZeroPadding}); console.log(decrypted.toString(CryptoJS.enc.Utf8)); $("#p2").text("解密结果："+decrypted.toString(CryptoJS.enc.Utf8)); })</script></body></html> |