用NODE RSA JS 加密解密正常，用JAVA RSAUtils工具类加密解密正常。但是用node加密玩的java解密不了。原因：node默认的是
DEFAULT_ENCRYPTION_SCHEME = 'pkcs1_oaep' 而java中默认的是pkcs1。
node-rsa源码：https://github.com/rzcoder/node-rsa/blob/ea5c17d9351c857c0594d7921c596ff5636882f1/src/NodeRSA.js
var DEFAULT_ENCRYPTION_SCHEME = 'pkcs1_oaep';
node-rsa官方文档：https://www.npmjs.com/package/node-rsa
Options
You can specify some options by second/third constructor argument, or over key.setOptions()method.
- environment — working environment (default autodetect):
-
'browser'— will run pure js implementation of RSA algorithms. -
'node'fornodejs >= 0.10.x or io.js >= 1.x— provide some native methods like sign/verify and encrypt/decrypt.
-
- encryptionScheme — padding scheme for encrypt/decrypt. Can be
'pkcs1_oaep'or'pkcs1'. Default'pkcs1_oaep'. - signingScheme — scheme used for signing and verifying. Can be
'pkcs1'or'pss'or 'scheme-hash' format string (eg'pss-sha1'). Default'pkcs1-sha256', or, if chosen pss:'pss-sha1'.
Notice: This lib supporting next hash algorithms:
'md5','ripemd160','sha1','sha256','sha512'in browser and node environment and additional'md4','sha','sha224','sha384'in node only.
所以要保持一致：
import NodeRSA from 'node-rsa';
const rsa_encrypt = (data) => {
let key = new NodeRSA('-----BEGIN PUBLIC KEY-----\n' + 'MIGfMA0。。。。。。。AQAB\n' + '-----END PUBLIC KEY-----');
// key.generateKeyPair(1024);
key.setOptions({encryptionScheme: 'pkcs1'})
let encryptKey = key.encrypt(data, 'base64')
return encryptKey;
}
后台：
public static byte[] decryptByPrivateKey(byte[] encryptedData, String privateKey)
throws Exception {
byte[] keyBytes = Base64Utils.decode(privateKey);
PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
Key privateK = keyFactory.generatePrivate(pkcs8KeySpec);
Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
cipher.init(Cipher.DECRYPT_MODE, privateK);
int inputLen = encryptedData.length;
ByteArrayOutputStream out = new ByteArrayOutputStream();
int offSet = 0;
byte[] cache;
int i = 0;
// 对数据分段解密
while (inputLen - offSet > 0) {
if (inputLen - offSet > MAX_DECRYPT_BLOCK) {
cache = cipher.doFinal(encryptedData, offSet, MAX_DECRYPT_BLOCK);
} else {
cache = cipher.doFinal(encryptedData, offSet, inputLen - offSet);
}
out.write(cache, 0, cache.length);
i++;
offSet = i * MAX_DECRYPT_BLOCK;
}
byte[] decryptedData = out.toByteArray();
out.close();
return decryptedData;
}
参考：https://blog.csdn.net/mshootingstar/article/details/56496719