@aws-crypto/sha256-browser
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Package description
The @aws-crypto/sha256-browser npm package is a JavaScript implementation of the SHA-256 cryptographic hash function specifically optimized for browser environments. It is part of the AWS SDK for JavaScript and is used to generate SHA-256 hashes of data, which is a common requirement for various security-related operations such as data integrity checks, digital signatures, and password hashing.
Generating SHA-256 hash
This feature allows you to generate a SHA-256 hash of the given data. The code sample demonstrates how to import the Sha256 class, create a new instance, update it with data, and then obtain the digest (the hash) as a promise.
import { Sha256 } from '@aws-crypto/sha256-browser';
async function hashData(data) {
const hash = new Sha256();
hash.update(data);
return hash.digest();
}
const data = new Uint8Array([/* data bytes here */]);
hashData(data).then(digest => {
console.log(digest);
});Crypto-js is a popular package that provides a variety of cryptographic algorithms including SHA-256. It is not specific to AWS and can be used in both browser and Node.js environments. Compared to @aws-crypto/sha256-browser, crypto-js offers a broader range of cryptographic functions.
js-sha256 is a simple SHA-256 hash function for JavaScript that supports UTF-8 encoding. It is smaller and may be faster than @aws-crypto/sha256-browser but lacks the AWS SDK integration and optimizations for AWS services.
hash.js is a JavaScript hash library that supports several hash functions including SHA-256. It is designed to work in both Node.js and browser environments. While it provides similar functionality to @aws-crypto/sha256-browser, it is not tied to AWS and offers a wider range of hash functions.
Readme
SHA256 wrapper for browsers that prefers window.crypto.subtle but will
fall back to a pure JS implementation in @aws-crypto/sha256-js
to provide a consistent interface for SHA256.
import {Sha256} from '@aws-crypto/sha256-browser'
const hash = new Sha256();
hash.update('some data');
const result = await hash.digest();
import {Sha256} from '@aws-crypto/sha256-browser'
const hash = new Sha256('a key');
hash.update('some data');
const result = await hash.digest();
npm test
FAQs
SHA256 wrapper for browsers that prefers `window.crypto.subtle` but will fall back to a pure JS implementation in @aws-crypto/sha256-js to provide a consistent interface for SHA256.
The npm package @aws-crypto/sha256-browser receives a total of 9,268,112 weekly downloads. As such, @aws-crypto/sha256-browser popularity was classified as popular.
We found that @aws-crypto/sha256-browser demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 8 open source maintainers collaborating on the project.
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