示例

const crypto = require('crypto');

const hash = crypto.createHash('sha256');

hash.update('some data to hash');

console.log(hash.digest('hex'));

// Prints:

//   6a2da20943931e9834fc12cfe5bb47bbd9ae43489a30726962b576f4e3993e50

参考：

https://www.cnblogs.com/chyingp/p/nodejs-learning-crypto-theory.html

官方文档