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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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32
src/lib/modules/crypto/rsa.ts
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@@ -1,7 +1,7 @@
import { encodeString, encodeToBase64, decodeFromBase64 } from "./util";
export const generateEncryptionKeyPair = async () => {
const keyPair = await window.crypto.subtle.generateKey(
const keyPair = await crypto.subtle.generateKey(
{
name: "RSA-OAEP",
modulusLength: 4096,
@@ -18,7 +18,7 @@ export const generateEncryptionKeyPair = async () => {
};
export const generateSigningKeyPair = async () => {
const keyPair = await window.crypto.subtle.generateKey(
const keyPair = await crypto.subtle.generateKey(
{
name: "RSA-PSS",
modulusLength: 4096,
@@ -37,7 +37,7 @@ export const generateSigningKeyPair = async () => {
export const exportRSAKey = async (key: CryptoKey) => {
const format = key.type === "public" ? ("spki" as const) : ("pkcs8" as const);
return {
key: await window.crypto.subtle.exportKey(format, key),
key: await crypto.subtle.exportKey(format, key),
format,
};
};
@@ -54,14 +54,14 @@ export const importEncryptionKeyPairFromBase64 = async (
name: "RSA-OAEP",
hash: "SHA-256",
};
const encryptKey = await window.crypto.subtle.importKey(
const encryptKey = await crypto.subtle.importKey(
"spki",
decodeFromBase64(encryptKeyBase64),
algorithm,
true,
["encrypt", "wrapKey"],
);
const decryptKey = await window.crypto.subtle.importKey(
const decryptKey = await crypto.subtle.importKey(
"pkcs8",
decodeFromBase64(decryptKeyBase64),
algorithm,
@@ -79,14 +79,14 @@ export const importSigningKeyPairFromBase64 = async (
name: "RSA-PSS",
hash: "SHA-256",
};
const signKey = await window.crypto.subtle.importKey(
const signKey = await crypto.subtle.importKey(
"pkcs8",
decodeFromBase64(signKeyBase64),
algorithm,
true,
["sign"],
);
const verifyKey = await window.crypto.subtle.importKey(
const verifyKey = await crypto.subtle.importKey(
"spki",
decodeFromBase64(verifyKeyBase64),
algorithm,
@@ -98,17 +98,11 @@ export const importSigningKeyPairFromBase64 = async (
export const makeRSAKeyNonextractable = async (key: CryptoKey) => {
const { key: exportedKey, format } = await exportRSAKey(key);
return await window.crypto.subtle.importKey(
format,
exportedKey,
key.algorithm,
false,
key.usages,
);
return await crypto.subtle.importKey(format, exportedKey, key.algorithm, false, key.usages);
};
export const decryptChallenge = async (challenge: string, decryptKey: CryptoKey) => {
return await window.crypto.subtle.decrypt(
return await crypto.subtle.decrypt(
{
name: "RSA-OAEP",
} satisfies RsaOaepParams,
@@ -119,7 +113,7 @@ export const decryptChallenge = async (challenge: string, decryptKey: CryptoKey)
export const wrapMasterKey = async (masterKey: CryptoKey, encryptKey: CryptoKey) => {
return encodeToBase64(
await window.crypto.subtle.wrapKey("raw", masterKey, encryptKey, {
await crypto.subtle.wrapKey("raw", masterKey, encryptKey, {
name: "RSA-OAEP",
} satisfies RsaOaepParams),
);
@@ -131,7 +125,7 @@ export const unwrapMasterKey = async (
extractable = false,
) => {
return {
masterKey: await window.crypto.subtle.unwrapKey(
masterKey: await crypto.subtle.unwrapKey(
"raw",
decodeFromBase64(masterKeyWrapped),
decryptKey,
@@ -146,7 +140,7 @@ export const unwrapMasterKey = async (
};
export const signMessageRSA = async (message: BufferSource, signKey: CryptoKey) => {
return await window.crypto.subtle.sign(
return await crypto.subtle.sign(
{
name: "RSA-PSS",
saltLength: 32, // SHA-256
@@ -161,7 +155,7 @@ export const verifySignatureRSA = async (
signature: BufferSource,
verifyKey: CryptoKey,
) => {
return await window.crypto.subtle.verify(
return await crypto.subtle.verify(
{
name: "RSA-PSS",
saltLength: 32, // SHA-256