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HMAC 계산을 Web Worker에서 처리하도록 변경

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static
2026-01-12 15:16:43 +09:00
parent b636d75ea0
commit e7dc96bb47
4 changed files with 52 additions and 25 deletions
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30
src/lib/modules/crypto/sha.ts
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@@ -1,5 +1,5 @@
import { hmac } from "@noble/hashes/hmac.js";
import { sha256 } from "@noble/hashes/sha2.js";
import HmacWorker from "$workers/hmac?worker";
import type { ComputeMessage, ResultMessage } from "$workers/hmac";
export const digestMessage = async (message: BufferSource) => {
return await crypto.subtle.digest("SHA-256", message);
@@ -18,10 +18,24 @@ export const generateHmacSecret = async () => {
};
};
export const createHmacStream = async (hmacSecret: CryptoKey) => {
const h = hmac.create(sha256, new Uint8Array(await crypto.subtle.exportKey("raw", hmacSecret)));
return {
update: (data: Uint8Array) => h.update(data),
digest: () => h.digest(),
};
export const signMessageHmac = async (message: Blob, hmacSecret: CryptoKey) => {
const worker = new HmacWorker();
const stream = message.stream();
const hmacSecretRaw = new Uint8Array(await crypto.subtle.exportKey("raw", hmacSecret));
return new Promise<Uint8Array>((resolve, reject) => {
worker.onmessage = (event: MessageEvent<ResultMessage>) => {
resolve(event.data.result);
worker.terminate();
};
worker.onerror = ({ error }) => {
reject(error);
worker.terminate();
};
worker.postMessage({ stream, key: hmacSecretRaw } satisfies ComputeMessage, {
transfer: [stream, hmacSecretRaw.buffer],
});
});
};