node.js sha256

const crypto = require('crypto');

// 要进行哈希处理的数据
const data = 'Hello, World!';

// 创建一个SHA-256哈希对象
const hash = crypto.createHash('sha256');

// 更新哈希对象的内容
hash.update(data);

// 获取最终的哈希值
const hashValue = hash.digest('hex');

console.log('SHA-256 Hash:', hashValue);

hash.update(data, 'utf8');

const fs = require('fs');
const crypto = require('crypto');

const hash = crypto.createHash('sha256');
const stream = fs.createReadStream('largefile.txt');

stream.on('data', (data) => {
  hash.update(data);
});

stream.on('end', () => {
  const hashValue = hash.digest('hex');
  console.log('SHA-256 Hash:', hashValue);
});