ECDH 类

ECDH 类是用于创建椭圆曲线 Diffie-Hellman (ECDH) 密钥交换的实用工具。

可以使用 crypto.createECDH() 函数创建 ECDH 类的实例。

import assert from 'node:assert';

const {
  createECDH
} = await import('node:crypto');

// 生成 Alice 的密钥...
const alice = createECDH('secp521r1');
const aliceKey = alice.generateKeys();

// 生成 Bob 的密钥...
const bob = createECDH('secp521r1');
const bobKey = bob.generateKeys();

// 交换并生成密钥...
const aliceSecret = alice.computeSecret(bobKey);
const bobSecret = bob.computeSecret(aliceKey);

assert.strictEqual(aliceSecret.toString('hex'), bobSecret.toString('hex'));
// OKconst assert = require('node:assert');

const {
  createECDH,
} = require('node:crypto');

// 生成 Alice 的密钥...
const alice = createECDH('secp521r1');
const aliceKey = alice.generateKeys();

// 生成 Bob 的密钥...
const bob = createECDH('secp521r1');
const bobKey = bob.generateKeys();

// 交换并生成密钥...
const aliceSecret = alice.computeSecret(bobKey);
const bobSecret = bob.computeSecret(aliceKey);

assert.strictEqual(aliceSecret.toString('hex'), bobSecret.toString('hex'));
// OK

The ECDH class is a utility for creating Elliptic Curve Diffie-Hellman (ECDH) key exchanges.

Instances of the ECDH class can be created using the crypto.createECDH() function.

import assert from 'node:assert';

const {
  createECDH
} = await import('node:crypto');

// Generate Alice's keys...
const alice = createECDH('secp521r1');
const aliceKey = alice.generateKeys();

// Generate Bob's keys...
const bob = createECDH('secp521r1');
const bobKey = bob.generateKeys();

// Exchange and generate the secret...
const aliceSecret = alice.computeSecret(bobKey);
const bobSecret = bob.computeSecret(aliceKey);

assert.strictEqual(aliceSecret.toString('hex'), bobSecret.toString('hex'));
// OKconst assert = require('node:assert');

const {
  createECDH,
} = require('node:crypto');

// Generate Alice's keys...
const alice = createECDH('secp521r1');
const aliceKey = alice.generateKeys();

// Generate Bob's keys...
const bob = createECDH('secp521r1');
const bobKey = bob.generateKeys();

// Exchange and generate the secret...
const aliceSecret = alice.computeSecret(bobKey);
const bobSecret = bob.computeSecret(aliceKey);

assert.strictEqual(aliceSecret.toString('hex'), bobSecret.toString('hex'));
// OK