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@aws-sdk/hash-blob-browser

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@aws-sdk/hash-blob-browser

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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));

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Package last updated on 21 Jun 2023

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