Mirroristas/openpgpjs
2
0
Fork 0
mirror of https://github.com/openpgpjs/openpgpjs.git synced 2025-07-09 14:32:31 +00:00
Code Issues Packages Projects Releases Wiki Activity

Throw if WebCrypto API is not available

Browse Source 
It was already required, this simply makes errors more clear.
This commit is contained in:
larabr 2024-02-06 15:41:40 +01:00
parent 3320eaccb2
commit 280828dae6
2 changed files with 12 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/crypto/hkdf.js
View File

@ -7,14 +7,12 @@ import enums from '../enums';
import util from '../util'; import util from '../util';
const webCrypto = util.getWebCrypto(); const webCrypto = util.getWebCrypto();
const nodeCrypto = util.getNodeCrypto();
export default async function computeHKDF(hashAlgo, inputKey, salt, info, outLen) { export default async function computeHKDF(hashAlgo, inputKey, salt, info, outLen) {
const hash = enums.read(enums.webHash, hashAlgo); const hash = enums.read(enums.webHash, hashAlgo);
if (!hash) throw new Error('Hash algo not supported with HKDF'); if (!hash) throw new Error('Hash algo not supported with HKDF');
const crypto = webCrypto || nodeCrypto.webcrypto.subtle; const importedKey = await webCrypto.importKey('raw', inputKey, 'HKDF', false, ['deriveBits']);
const importedKey = await crypto.importKey('raw', inputKey, 'HKDF', false, ['deriveBits']); const bits = await webCrypto.deriveBits({ name: 'HKDF', hash, salt, info }, importedKey, outLen * 8);
const bits = await crypto.deriveBits({ name: 'HKDF', hash, salt, info }, importedKey, outLen * 8);
return new Uint8Array(bits); return new Uint8Array(bits);
} }

13
src/util.js
View File

@ -420,11 +420,18 @@ const util = {
}, },
/** /**
* Get native Web Cryptography api, only the current version of the spec. * Get native Web Cryptography API.
* @returns {Object} The SubtleCrypto api or 'undefined'. * @returns {Object} The SubtleCrypto API
* @throws if the API is not available
*/ */
getWebCrypto: function() { getWebCrypto: function() {
return typeof globalThis !== 'undefined' && globalThis.crypto && globalThis.crypto.subtle; const globalWebCrypto = typeof globalThis !== 'undefined' && globalThis.crypto && globalThis.crypto.subtle;
// Fallback for Node 16, which does not expose WebCrypto as a global
const webCrypto = globalWebCrypto || this.getNodeCrypto()?.webcrypto.subtle;
if (!webCrypto) {
throw new Error('The WebCrypto API is not available');
}
return webCrypto;
}, },
/** /**