@aws-sdk/hash-node
Advanced tools
Package description
The @aws-sdk/hash-node package is part of the AWS SDK for JavaScript (v3) and is specifically designed for hashing functionalities within Node.js environments. It provides a set of utilities for generating hash digests of data. This can be particularly useful for creating secure, fixed-size representations of data for tasks such as validating the integrity of files, securely storing passwords, or implementing caching mechanisms.
Generating SHA-256 Hashes
This feature allows you to generate SHA-256 hash digests of data. The code sample demonstrates how to create a new Hash instance, update it with the data to be hashed, and then generate the digest.
const { Hash } = require('@aws-sdk/hash-node');
const hash = new Hash('sha256');
hash.update('data to hash');
const digest = await hash.digest();
console.log(digest);Streaming Data Hashing
This feature is useful for hashing large files or streaming data. The code sample shows how to create a hash instance, stream a file, update the hash with chunks of the file, and finally generate the digest once the stream ends.
const { Hash } = require('@aws-sdk/hash-node');
const fs = require('fs');
const fileStream = fs.createReadStream('path/to/file');
const hash = new Hash('sha256');
fileStream.on('data', (chunk) => hash.update(chunk));
fileStream.on('end', async () => {
const digest = await hash.digest();
console.log(digest);
});The 'crypto' module is a built-in Node.js module that provides cryptographic functionality that includes a set of wrappers for OpenSSL's hash, HMAC, cipher, decipher, sign, and verify functions. Unlike @aws-sdk/hash-node, it is built into Node.js and does not require an additional installation. It offers a wider range of cryptographic functions but might be more complex to use for simple hashing needs.
Hasha is a high-performance Node.js hashing module that makes it easy to create hash digests of data. It supports multiple algorithms and can hash strings, buffers, and streams. Compared to @aws-sdk/hash-node, hasha is more focused on simplicity and ease of use for hashing operations, without the broader AWS SDK context.
Changelog
3.370.0 (2023-07-13)
Readme
An internal package
You probably shouldn't, at least directly.
FAQs
[](https://www.npmjs.com/package/@aws-sdk/hash-node) [](https://www.npmjs.com/package/@aws-sdk/hash-node)
The npm package @aws-sdk/hash-node receives a total of 3,149,976 weekly downloads. As such, @aws-sdk/hash-node popularity was classified as popular.
We found that @aws-sdk/hash-node demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 5 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
The Python Software Foundation has secured a 5-year sponsorship from Fastly that supports PSF's activities and events, most notably the security and reliability of the Python Package Index (PyPI).
Security News
LDAPjs, an LDAP Client and Server API for Node.js, was decommissioned after its maintainer received an abusive email from a user, raising concerns about this form of abuse as a potential attack vector.
Security News
CISA launched a new project called Vulnrichment to enrich CVEs with details that help prioritize patching and mitigation efforts, as the NVD backlog of unenriched CVEs awaiting analysis surpasses 10,000.