用NODE RSA JS 加密解密正常，用JAVA RSAUtils工具類加密解密正常。但是用node加密玩的java解密不了。原因：node默認的是

DEFAULT_ENCRYPTION_SCHEME = 'pkcs1_oaep'? 而java中默認的是pkcs1。

node-rsa源碼：https://github.com/rzcoder/node-rsa/blob/ea5c17d9351c857c0594d7921c596ff5636882f1/src/NodeRSA.js

var DEFAULT_ENCRYPTION_SCHEME = 'pkcs1_oaep';

node-rsa官方文檔：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'?for?nodejs >= 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; }

后臺：

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;// 對數據分段解密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;}

?參考：https://blog.csdn.net/mshootingstar/article/details/56496719

轉載于:https://www.cnblogs.com/davidwang456/p/8805872.html

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