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Service Worker를 활용한 스트리밍 방식 파일 복호화 구현

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static
2026-01-11 09:06:49 +09:00
parent 4b783a36e9
commit 0c295a2ffa
25 changed files with 359 additions and 64 deletions
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22
src/lib/modules/crypto/aes.ts
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@@ -9,7 +9,7 @@ import {
export const generateMasterKey = async () => {
return {
masterKey: await window.crypto.subtle.generateKey(
masterKey: await crypto.subtle.generateKey(
{
name: "AES-KW",
length: 256,
@@ -22,7 +22,7 @@ export const generateMasterKey = async () => {
export const generateDataKey = async () => {
return {
dataKey: await window.crypto.subtle.generateKey(
dataKey: await crypto.subtle.generateKey(
{
name: "AES-GCM",
length: 256,
@@ -35,9 +35,9 @@ export const generateDataKey = async () => {
};
export const makeAESKeyNonextractable = async (key: CryptoKey) => {
return await window.crypto.subtle.importKey(
return await crypto.subtle.importKey(
"raw",
await window.crypto.subtle.exportKey("raw", key),
await crypto.subtle.exportKey("raw", key),
key.algorithm,
false,
key.usages,
@@ -45,12 +45,12 @@ export const makeAESKeyNonextractable = async (key: CryptoKey) => {
};
export const wrapDataKey = async (dataKey: CryptoKey, masterKey: CryptoKey) => {
return encodeToBase64(await window.crypto.subtle.wrapKey("raw", dataKey, masterKey, "AES-KW"));
return encodeToBase64(await crypto.subtle.wrapKey("raw", dataKey, masterKey, "AES-KW"));
};
export const unwrapDataKey = async (dataKeyWrapped: string, masterKey: CryptoKey) => {
return {
dataKey: await window.crypto.subtle.unwrapKey(
dataKey: await crypto.subtle.unwrapKey(
"raw",
decodeFromBase64(dataKeyWrapped),
masterKey,
@@ -63,12 +63,12 @@ export const unwrapDataKey = async (dataKeyWrapped: string, masterKey: CryptoKey
};
export const wrapHmacSecret = async (hmacSecret: CryptoKey, masterKey: CryptoKey) => {
return encodeToBase64(await window.crypto.subtle.wrapKey("raw", hmacSecret, masterKey, "AES-KW"));
return encodeToBase64(await crypto.subtle.wrapKey("raw", hmacSecret, masterKey, "AES-KW"));
};
export const unwrapHmacSecret = async (hmacSecretWrapped: string, masterKey: CryptoKey) => {
return {
hmacSecret: await window.crypto.subtle.unwrapKey(
hmacSecret: await crypto.subtle.unwrapKey(
"raw",
decodeFromBase64(hmacSecretWrapped),
masterKey,
@@ -84,8 +84,8 @@ export const unwrapHmacSecret = async (hmacSecretWrapped: string, masterKey: Cry
};
export const encryptData = async (data: BufferSource, dataKey: CryptoKey) => {
const iv = window.crypto.getRandomValues(new Uint8Array(12));
const ciphertext = await window.crypto.subtle.encrypt(
const iv = crypto.getRandomValues(new Uint8Array(12));
const ciphertext = await crypto.subtle.encrypt(
{
name: "AES-GCM",
iv,
@@ -101,7 +101,7 @@ export const decryptData = async (
iv: string | BufferSource,
dataKey: CryptoKey,
) => {
return await window.crypto.subtle.decrypt(
return await crypto.subtle.decrypt(
{
name: "AES-GCM",
iv: typeof iv === "string" ? decodeFromBase64(iv) : iv,