How to use the subtle function from crypto

Find comprehensive JavaScript crypto.subtle code examples handpicked from public code repositorys.

jest.setup.js

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// JSDom does not include a full implementation of webcrypto
const crypto = require('crypto').webcrypto;
global.crypto.subtle = crypto.subtle;

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+ 3 other calls in file

README.md?plain=1

GitHub: danharper/hmac-examples

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const cryptoKey = await crypto.subtle.importKey(
  'raw', keyBytes, { name: 'HMAC', hash: 'SHA-256' },
  true, ['sign']
);
const sig = await crypto.subtle.sign('HMAC', cryptoKey, messageBytes);

// to lowercase hexits
[...new Uint8Array(sig)].map(b => b.toString(16).padStart(2, '0')).join('');

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+ 3 other calls in file

pkce.js

GitHub: FusionAuth/fusionauth-example-angular-sdk

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console.log('in generatePKCE');
const code_verifier = generateRandomString();

const encoder = new TextEncoder();
const data = encoder.encode(code_verifier);
const sha256 = await crypto.subtle.digest('SHA-256', data);

let str = '';
const bytes = new Uint8Array(sha256);
const len = bytes.byteLength;

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