beenull/ente
1
0
Fork 0
Code Issues Pull requests Actions Packages Projects Releases Wiki Activity

use stream for generating hash

Browse source
This commit is contained in:
Rushikesh Tote 2022-05-18 13:19:50 +05:30
parent f49b53db0f
commit 272c7966f9
2 changed files with 13 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
src/utils/crypto/index.ts
View file

@ -200,8 +200,7 @@ export async function encryptWithRecoveryKey(key: string) {
export default CryptoWorker;
export async function getFileHash(file: File | ElectronFile) {
const hash = await cryptoGenericHash(
new Uint8Array(await file.arrayBuffer())
);
const stream = await file.stream();
const hash = await cryptoGenericHash(stream);
return hash;
}

20
src/utils/crypto/libsodium.ts
View file

@ -252,7 +252,7 @@ export async function hash(input: string) {
);
}
export async function cryptoGenericHash(data: Uint8Array) {
export async function cryptoGenericHash(stream: ReadableStream) {
await sodium.ready;
const state = sodium.crypto_generichash_init(
@ -260,15 +260,17 @@ export async function cryptoGenericHash(data: Uint8Array) {
sodium.crypto_generichash_BYTES_MAX
);
let bytesRead = 0;
while (bytesRead < data.length) {
const chunkSize = Math.min(
ENCRYPTION_CHUNK_SIZE,
data.length - bytesRead
);
const buffer = data.slice(bytesRead, bytesRead + chunkSize);
const reader = stream.getReader();
let isDone = false;
while (!isDone) {
const { done, value: chunk } = await reader.read();
if (done) {
isDone = true;
break;
}
const buffer = Uint8Array.from(chunk);
sodium.crypto_generichash_update(state, buffer);
bytesRead += chunkSize;
}
const hash = sodium.crypto_generichash_final(