'use strict';

const _pubKey = `-----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCK3siV2MKl7ADFMajEsbc/ZrST
fo9h37c6+m0cUHOTqGR4V+Ugzc5Wzpcrz6QGu7/umQBJRC3LZ8xRW8+J6Z1lI0+T
r6LT8NfLUeyBTBXkBI1j0BIzmEjsW/a1vDr2ahXn1RFvtnHeKs41lbICkY7mRA2c
AyiMWhrteM1d1MR3gQIDAQAB
-----END PUBLIC KEY-----`;

var encrypt=new JSEncrypt();
encrypt.setPublicKey(_pubKey);

// 加密数据
var res = encrypt.encrypt('abc bcd 123 nnn');
console.log(res); // base64

const NodeRSA = require('node-rsa');
const _priKey = `-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----`;

const baseStr = 'hjDE7l3N0t8JJ3iQAYd6d1EdjuFBdmf4UmGC9r88mFHSa760XalAIE9fQAGMa+2uMjY+B1LfNw1uBX2FId16x1kQDsI3P1xhmxRAAQaQa+SDiqaljiPEi4rVW08vq8oCWNWwNHT5fQs2h0mcs/F0ksfDS1jSBr4KkUCnLqdR138=';

const privateKey = new NodeRSA(_priKey);
privateKey.setOptions({encryptionScheme: 'pkcs1'}); // 因为jsencrypt自身使用的是pkcs1加密方案, nodejs需要修改成pkcs1。
decrypted = privateKey.decrypt(baseStr, 'utf8');
console.log(decrypted);