前后端请求AES加解密(转载)
作者：互联网
前端库地址：crypto-js
安装依赖
npm install --save crypto-js
或者下载后引用
<script src="./js/crypto-js.js"></script> <script src="./js/aes.js"></script>
使用CBC模式
前端
// 字符串转hex
let string_to_hex = function (str) {
let tempstr = "";
for (let i = 0; i < str.length; i++) {
if (tempstr === "") tempstr = str.charCodeAt(i).toString(16);
else tempstr += str.charCodeAt(i).toString(16);
}
return tempstr;
};
let keystr = "0123456789ABCDEF";
let ivstr = "0123456789101112";
const src = "Hello World";
console.log("密钥：", keystr);
console.log("偏移量：", ivstr);
console.log("原字符串：", src);
let key = string_to_hex(keystr);
key = CryptoJS.enc.Hex.parse(key);
ivstr = string_to_hex(ivstr);
let iv = CryptoJS.enc.Hex.parse(ivstr);
const enc = CryptoJS.AES.encrypt(src, key, {
iv: iv,
mode: CryptoJS.mode.CBC,
padding: CryptoJS.pad.Pkcs7,
});
const enced = enc.ciphertext.toString();
console.log("加密：", enced);
const dec = CryptoJS.AES.decrypt(CryptoJS.format.Hex.parse(enced), key, {
iv: iv,
mode: CryptoJS.mode.CBC,
padding: CryptoJS.pad.Pkcs7,
});
const decstr = CryptoJS.enc.Utf8.stringify(dec);
console.log("解密：", decstr);
结果
密钥： 0123456789ABCDEF 偏移量： 0123456789101112 原字符串： Hello World 加密： 4b20efdf7aceb95c099b7df542673256 解密： Hello World
Java后端
import java.io.UnsupportedEncodingException;
import java.nio.charset.Charset;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.KeyGenerator;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
public class AES {
private static String Algorithm = "AES";
private static String AlgorithmProvider = "AES/CBC/PKCS5Padding"; //算法/模式/补码方式
public static byte[] generatorKey() throws NoSuchAlgorithmException {
KeyGenerator keyGenerator = KeyGenerator.getInstance(Algorithm);
keyGenerator.init(256);//默认128，获得无政策权限后可为192或256
SecretKey secretKey = keyGenerator.generateKey();
return secretKey.getEncoded();
}
public static IvParameterSpec getIv(String ivstr) throws UnsupportedEncodingException {
IvParameterSpec ivParameterSpec = new IvParameterSpec(ivstr.getBytes("utf-8"));
return ivParameterSpec;
}
public static String encrypt(String src, String keystr, IvParameterSpec iv) throws
NoSuchAlgorithmException,
NoSuchPaddingException,
InvalidKeyException,
IllegalBlockSizeException,
BadPaddingException,
UnsupportedEncodingException,
InvalidAlgorithmParameterException {
byte[] key = keystr.getBytes("utf-8");
SecretKey secretKey = new SecretKeySpec(key, Algorithm);
IvParameterSpec ivParameterSpec = iv;
Cipher cipher = Cipher.getInstance(AlgorithmProvider);
cipher.init(Cipher.ENCRYPT_MODE, secretKey, ivParameterSpec);
byte[] cipherBytes = cipher.doFinal(src.getBytes(Charset.forName("utf-8")));
return byteToHexString(cipherBytes);
}
public static String decrypt(String src, String keystr, IvParameterSpec iv) throws Exception {
byte[] key = keystr.getBytes("utf-8");
SecretKey secretKey = new SecretKeySpec(key, Algorithm);
IvParameterSpec ivParameterSpec = iv;
Cipher cipher = Cipher.getInstance(AlgorithmProvider);
cipher.init(Cipher.DECRYPT_MODE, secretKey, ivParameterSpec);
byte[] hexBytes = hexStringToBytes(src);
byte[] plainBytes = cipher.doFinal(hexBytes);
return new String(plainBytes, "utf-8");
}
/**
* 将byte转换为16进制字符串
*
* @param src
* @return
*/
public static String byteToHexString(byte[] src) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < src.length; i++) {
int v = src[i] & 0xff;
String hv = Integer.toHexString(v);
if (hv.length() < 2) {
sb.append("0");
}
sb.append(hv);
}
return sb.toString();
}
/**
* 将16进制字符串装换为byte数组
*
* @param hexString
* @return
*/
public static byte[] hexStringToBytes(String hexString) {
hexString = hexString.toUpperCase();
int length = hexString.length() / 2;
char[] hexChars = hexString.toCharArray();
byte[] b = new byte[length];
for (int i = 0; i < length; i++) {
int pos = i * 2;
b[i] = (byte) (charToByte(hexChars[pos]) << 4 | charToByte(hexChars[pos + 1]));
}
return b;
}
private static byte charToByte(char c) {
return (byte) "0123456789ABCDEF".indexOf(c);
}
public static void main(String[] args) {
try {
// 密钥必须是16的倍数
String keystr = "0123456789ABCDEF";
String ivstr = "0123456789101112";
String src = "Hello World";
System.out.println("密钥：" + keystr);
System.out.println("偏移量：" + ivstr);
System.out.println("原字符串：" + src);
IvParameterSpec iv = getIv(ivstr);
String enc = encrypt(src, keystr, iv);
System.out.println("加密：" + enc);
String dec = decrypt(enc, keystr, iv);
System.out.println("解密：" + dec);
} catch (InvalidKeyException e) {
e.printStackTrace();
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (NoSuchPaddingException e) {
e.printStackTrace();
} catch (IllegalBlockSizeException e) {
e.printStackTrace();
} catch (BadPaddingException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
}
结果
密钥：0123456789ABCDEF 偏移量：0123456789101112 原字符串：Hello World 加密：4b20efdf7aceb95c099b7df542673256 解密：Hello World
使用ECB模式
前端
// 字符串转hex
let string_to_hex = function (str) {
let tempstr = "";
for (let i = 0; i < str.length; i++) {
if (tempstr === "") tempstr = str.charCodeAt(i).toString(16);
else tempstr += str.charCodeAt(i).toString(16);
}
return tempstr;
};
let keystr = "0123456789ABCDEF";
const src = "Hello World";
console.log("密钥：", keystr);
console.log("原字符串：", src);
let key = string_to_hex(keystr);
key = CryptoJS.enc.Hex.parse(key);
const enc = CryptoJS.AES.encrypt(src, key, {
mode: CryptoJS.mode.ECB,
padding: CryptoJS.pad.Pkcs7,
});
const enced = enc.ciphertext.toString();
console.log("加密：", enced);
const dec = CryptoJS.AES.decrypt(CryptoJS.format.Hex.parse(enced), key, {
mode: CryptoJS.mode.ECB,
padding: CryptoJS.pad.Pkcs7,
});
let decstr = CryptoJS.enc.Utf8.stringify(dec);
console.log("解密：", decstr);
结果
密钥： 0123456789ABCDEF 原字符串： Hello World 加密： 21f41dde54d0c9703c730fd14ce47cfe 解密： Hello World
Java后端
import java.io.UnsupportedEncodingException;
import java.nio.charset.Charset;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.KeyGenerator;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
public class AES {
private static String Algorithm = "AES";
private static String AlgorithmProvider = "AES/ECB/PKCS5Padding"; // 算法/模式/补码方式
public static byte[] generatorKey() throws NoSuchAlgorithmException {
KeyGenerator keyGenerator = KeyGenerator.getInstance(Algorithm);
keyGenerator.init(256);//默认128，获得无政策权限后可为192或256
SecretKey secretKey = keyGenerator.generateKey();
return secretKey.getEncoded();
}
public static String encrypt(String src, String keystr) throws NoSuchAlgorithmException, NoSuchPaddingException,
InvalidKeyException, IllegalBlockSizeException, BadPaddingException, UnsupportedEncodingException, InvalidAlgorithmParameterException {
byte[] key = keystr.getBytes("utf-8");
SecretKey secretKey = new SecretKeySpec(key, Algorithm);
Cipher cipher = Cipher.getInstance(AlgorithmProvider);
cipher.init(Cipher.ENCRYPT_MODE, secretKey);
byte[] cipherBytes = cipher.doFinal(src.getBytes(Charset.forName("utf-8")));
return byteToHexString(cipherBytes);
}
public static String decrypt(String src, String keystr) throws Exception {
byte[] key = keystr.getBytes("utf-8");
SecretKey secretKey = new SecretKeySpec(key, Algorithm);
Cipher cipher = Cipher.getInstance(AlgorithmProvider);
cipher.init(Cipher.DECRYPT_MODE, secretKey);
byte[] hexBytes = hexStringToBytes(src);
byte[] plainBytes = cipher.doFinal(hexBytes);
return new String(plainBytes, "utf-8");
}
/**
* 将byte转换为16进制字符串
*
* @param src
* @return
*/
public static String byteToHexString(byte[] src) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < src.length; i++) {
int v = src[i] & 0xff;
String hv = Integer.toHexString(v);
if (hv.length() < 2) {
sb.append("0");
}
sb.append(hv);
}
return sb.toString();
}
/**
* 将16进制字符串装换为byte数组
*
* @param hexString
* @return
*/
public static byte[] hexStringToBytes(String hexString) {
hexString = hexString.toUpperCase();
int length = hexString.length() / 2;
char[] hexChars = hexString.toCharArray();
byte[] b = new byte[length];
for (int i = 0; i < length; i++) {
int pos = i * 2;
b[i] = (byte) (charToByte(hexChars[pos]) << 4 | charToByte(hexChars[pos + 1]));
}
return b;
}
private static byte charToByte(char c) {
return (byte) "0123456789ABCDEF".indexOf(c);
}
public static void main(String[] args) {
try {
// 密钥必须是16的倍数
String keystr = "0123456789ABCDEF";
String src = "Hello World";
System.out.println("密钥：" + keystr);
System.out.println("原字符串：" + src);
String enc = encrypt(src, keystr);
System.out.println("加密：" + enc);
String dec = decrypt(enc, keystr);
System.out.println("解密：" + dec);
} catch (InvalidKeyException e) {
e.printStackTrace();
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (NoSuchPaddingException e) {
e.printStackTrace();
} catch (IllegalBlockSizeException e) {
e.printStackTrace();
} catch (BadPaddingException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
}
结果
密钥：0123456789ABCDEF 原字符串：Hello World 加密：21f41dde54d0c9703c730fd14ce47cfe 解密：Hello World
转载地址:https://cloud.tencent.com/developer/article/1823249
结果
encrypt_str: U2FsdGVkX1/QM9zoNjeuJ4AHYhjME01+XQLEOGkO3ns= decrypt_str: 123456
标签：src,AES,String,加解密,crypto,import,byte,转载,CryptoJS 来源： https://www.cnblogs.com/yinliang/p/15252688.html