node-rsa 解密

node-rsa 公钥解密

const NodeRSA = require('node-rsa');
const key = new NodeRSA('-----BEGIN PUBLIC KEY-----\n'+
...........
'-----END PUBLIC KEY-----');

const token = "token";
const decrypted = key.decryptPublic(token, 'utf8');
console.log('decrypted: ', decrypted);

如果遇到解密异常，例如公钥head是'-----BEGIN RSA PRIVATE KEY-----\n'+........'-----END RSA PRIVATE KEY-----'：

   /Users/admin/Desktop/code/node_modules/_asn1@0.2.3@asn1/lib/ber/reader.js:168
    throw newInvalidAsn1Error('Expected 0x' + tag.toString(16) +
    ^

InvalidAsn1Error: Expected 0x2: got 0x30
    at newInvalidAsn1Error (/Users/yangxiaofei/Desktop/mycode/koa-demos/node_modules/_asn1@0.2.3@asn1/lib/ber/errors.js:7:13)
    at Reader.readString (/Users/yangxiaofei/Desktop/mycode/koa-demos/node_modules/_asn1@0.2.3@asn1/lib/ber/reader.js:168:11)
    at Object.privateImport (/Users/yangxiaofei/Desktop/mycode/koa-demos/node_modules/_node-rsa@1.0.1@node-rsa/src/formats/pkcs1.js:64:16)
    at Object.autoImport (/Users/yangxiaofei/Desktop/mycode/koa-demos/node_modules/_node-rsa@1.0.1@node-rsa/src/formats/pkcs1.js:132:28)
    at Object.detectAndImport (/Users/yangxiaofei/Desktop/mycode/koa-demos/node_modules/_node-rsa@1.0.1@node-rsa/src/formats/formats.js:54:103)
    at NodeRSA.module.exports.NodeRSA.importKey (/Users/yangxiaofei/Desktop/mycode/koa-demos/node_modules/_node-rsa@1.0.1@node-rsa/src/NodeRSA.js:183:22)
    at new NodeRSA (/Users/yangxiaofei/Desktop/mycode/koa-demos/node_modules/_node-rsa@1.0.1@node-rsa/src/NodeRSA.js:73:18)
    at Object.<anonymous> (/Users/yangxiaofei/Desktop/mycode/koa-demos/rsa.js:2:13)
    at Module._compile (internal/modules/cjs/loader.js:688:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:699:10)

检查自己的公钥head是否是'-----BEGIN PUBLIC KEY-----\n'+...........'-----END PUBLIC KEY-----'