@aws-sdk/hash-blob-browser

What is @aws-sdk/hash-blob-browser?

@aws-sdk/hash-blob-browser is a package from the AWS SDK for JavaScript that provides utilities for computing cryptographic hashes of Blob objects in a browser environment. This is particularly useful for tasks such as data integrity checks, digital signatures, and other cryptographic operations.

What are @aws-sdk/hash-blob-browser's main functionalities?

Compute SHA-256 Hash

This feature allows you to compute the SHA-256 hash of a Blob object. The code sample demonstrates how to create a new Sha256 instance, update it with the Blob data, and then compute the digest.

const { Sha256 } = require('@aws-sdk/hash-blob-browser');

async function computeSHA256(blob) {
  const hash = new Sha256();
  hash.update(blob);
  const digest = await hash.digest();
  return digest;
}

// Usage example
const blob = new Blob(['Hello, world!']);
computeSHA256(blob).then(digest => console.log(digest));

Compute MD5 Hash

This feature allows you to compute the MD5 hash of a Blob object. The code sample demonstrates how to create a new Md5 instance, update it with the Blob data, and then compute the digest.

const { Md5 } = require('@aws-sdk/hash-blob-browser');

async function computeMD5(blob) {
  const hash = new Md5();
  hash.update(blob);
  const digest = await hash.digest();
  return digest;
}

// Usage example
const blob = new Blob(['Hello, world!']);
computeMD5(blob).then(digest => console.log(digest));

Other packages similar to @aws-sdk/hash-blob-browser

crypto-js

crypto-js is a widely-used library that provides a variety of cryptographic algorithms for JavaScript, including MD5, SHA-1, SHA-256, and more. Unlike @aws-sdk/hash-blob-browser, crypto-js is not specifically designed for Blob objects but can be used for general-purpose cryptographic operations.

js-sha256

js-sha256 is a lightweight library that provides a simple API for computing SHA-256 hashes in JavaScript. It is smaller and more focused than @aws-sdk/hash-blob-browser, making it a good choice for projects that only require SHA-256 hashing.

spark-md5

spark-md5 is a fast and efficient library for computing MD5 hashes in JavaScript. It is optimized for large files and can process data in chunks, making it a good alternative to @aws-sdk/hash-blob-browser for MD5 hashing.

README

@aws-sdk/sha256-blob-browser

An internal package

Usage

You probably shouldn't, at least directly.

Changelog

3.338.0 (2023-05-23)

Features

• client-fms: Fixes issue that could cause calls to GetAdminScope and ListAdminAccountsForOrganization to return a 500 Internal Server error. (8306abb)
• client-sagemaker: Added ModelNameEquals, ModelPackageVersionArnEquals in request and ModelName, SamplePayloadUrl, ModelPackageVersionArn in response of ListInferenceRecommendationsJobs API. Added Invocation timestamps in response of DescribeInferenceRecommendationsJob API & ListInferenceRecommendationsJobSteps API. (9330d73)
• client-translate: Added support for calling TranslateDocument API. (bbe6acd)
• clients: update client endpoints as of 2023-05-23 (ac71bd4)