Node.JS crypto.ECDH.computeSecret() 总是抛出错误

Question

我创建了一个测试程序来测试 Node.JS 文档中的 ECDH 算法。我修改了代码以用于我的远程应用程序，代码如下所示：

//Source
var crypto = require('crypto');
var fs = require('fs');
var ecdh = crypto.createECDH('secp521r1');
fs.writeFileSync('./key',ecdh.generateKeys().toString('base64'));

//Remote
var crypto = require('crypto');
var fs = require('fs');
var ecdh = crypto.createECDH('secp521r1');
ecdh.generateKeys();
var key = Buffer.from(fs.readFileSync('./key'), 'base64');
var secret = ecdh.computeSecret(key, 'base64');
console.log(secret);

但是，每次我从远程脚本运行 ECDH.computeSecret() 时，它总是会抛出错误。我试过寻找解决方案，但无处可寻。

Answer 1

终于找到问题了，是因为我存盘时忘记指定编码了。网络上应该是一样的。

//source
var crypto = require('crypto');
var fs = require('fs');
var ecdh = crypto.createECDH('secp521r1');
fs.writeFileSync('./key', ecdh.generateKeys().toString('base64'), {encoding: 'utf-8'}); //added encoding

//Remote
var crypto = require('crypto');
var fs = require('fs');
var ecdh = crypto.createECDH('secp521r1');
ecdh.generateKeys();
var key = Buffer.from(fs.readFileSync('./key', {encoding: 'utf-8'}), 'base64');//added encoding
var secret = ecdh.computeSecret(key);
console.log(secret)

Node.JS crypto.ECDH.computeSecret() 总是抛出错误

Node.JS crypto.ECDH.computeSecret() always throw an error

cryptography

node.js

diffie-hellman

ecdh