Node、Java相互使用AES-256-CBC对数据进行加密解密实现
java中国官方JDK默认支持AES-128，在
1.8.0_151
和
1.8.0_152
版本之前，需要从Oracle官网下载安全JAR包方可支持AES-256，之后版本则可以通过在运行环境中设置以下属性启用AES-256支持！否则就会遇到这个错误：java.security.InvalidKeyException: Illegal key size。
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Security.setProperty("crypto.policy", "unlimited");
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JDK7下载：
Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files 7 Download
JDK8
下载：
JCE Unlimited Strength Jurisdiction Policy Files for JDK/JRE 8 Download
将压缩包中的文件替换
${JAVA_HOME}/jre/lib/security
中的
local_policy.jar
和
US_export_policy.jar
即可
一、node
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const crypto = require('crypto');
const algorithm = 'aes-256-cbc';
const key = '01234567890123456789012345678912';
const iv = '0123456789012345';
const charset = 'utf8';
const cipherEncoding = 'hex';
function encrypt(str) {
let cipher = crypto.createCipheriv(algorithm, key, iv);
let crypted = cipher.update(str, charset, cipherEncoding);
crypted += cipher.final(cipherEncoding);
crypted = crypted.replace(/\+/g, '%2b')
return crypted
}
function decrypt(str) {
str = str.replace(/(%2b)/g, '+')
let cipher = crypto.createDecipheriv(algorithm, key, iv);
const decrypted = cipher.update(str, cipherEncoding, charset);
result = decrypted + cipher.final(charset);
return result
}
function example(){
const str = 'hello world'
const e = encrypt(str)
console.log(`${str} 加密后：${e}`)
const d = decrypt(e)
console.log(`${str} 解密后：${d}`)
}
example()
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二、java
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package cn.yuencode.oisp.common.core.util;
import org.apache.commons.codec.binary.Hex;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import java.util.Base64;
import java.util.Base64.Decoder;
import java.util.Base64.Encoder;
public class CryptoUtils {
private static final String key = "01234567890123456789012345678912";
private static final String iv = "0123456789012345";
private static final String cipher_algorithm = "AES/CBC/PKCS5Padding";
private static final String algorithm = "AES";
private static final String charset = "UTF-8";
private static final String cipherEncoding = "hex";
private static final Encoder base64Encoder = Base64.getEncoder();
private static final Decoder base64Decoder = Base64.getDecoder();
static {
java.security.Security.setProperty("crypto.policy", "unlimited");
}
public static String encode(String content) {
try {
SecretKey secretKey = new SecretKeySpec(key.getBytes(), algorithm);
Cipher cipher = Cipher.getInstance(cipher_algorithm);
cipher.init(Cipher.ENCRYPT_MODE, secretKey, new IvParameterSpec(iv.getBytes()));
byte[] byteEncode = content.getBytes(charset);
byte[] byteAES = cipher.doFinal(byteEncode);
if ("hex".equalsIgnoreCase(cipherEncoding)) {
return Hex.encodeHexString(byteAES);
} else if ("base64".equals(cipherEncoding)) {
return base64Encoder.encodeToString(byteAES);
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static String decode(String content) {
try {
SecretKey secretKey = new javax.crypto.spec.SecretKeySpec(key.getBytes(), algorithm);
Cipher cipher = Cipher.getInstance(cipher_algorithm);
cipher.init(Cipher.DECRYPT_MODE, secretKey, new IvParameterSpec(iv.getBytes()));
byte[] byteContent = null;
if ("hex".equalsIgnoreCase(cipherEncoding)) {
byteContent = Hex.decodeHex(content);
} else if ("base64".equals(cipherEncoding)) {
byteContent = base64Decoder.decode(content);
}
byte[] byteDecode = cipher.doFinal(byteContent);
return new String(byteDecode, charset);
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static void main(String[] args) {
String str = "hello world";
String str1 = encode(str);
System.out.println(str + " 加密后：" + str1);
String str2 = decode(str1);
System.out.println(str + " 解密后：" + str2);
}
}
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