0ct0pu5/ente
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Factor out the decryption logic

Browse source
This commit is contained in:
Vishnu Mohandas 2020-10-01 02:59:27 +05:30
parent 51afe4d8fc
commit 45033903cb
1 changed files with 9 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
src/worker/crypto.worker.js
View file

@ -5,12 +5,11 @@ import sodium from 'libsodium-wrappers';
class Crypto {
async decryptMetadata(event) {
const { data } = event;
await sodium.ready;
const key = sodium.crypto_secretbox_open_easy(
const key = await this.decrypt(
base64ToUint8(data.metadata.decryptionParams.encryptedKey),
base64ToUint8(data.metadata.decryptionParams.keyDecryptionNonce),
base64ToUint8(event.key));
const metadata = sodium.crypto_secretbox_open_easy(
const metadata = await this.decrypt(
base64ToUint8(data.metadata.encryptedData),
base64ToUint8(data.metadata.decryptionParams.nonce),
key);
@ -22,12 +21,11 @@ class Crypto {
async decryptThumbnail(event) {
const { data } = event;
await sodium.ready;
const key = sodium.crypto_secretbox_open_easy(
const key = await this.decrypt(
base64ToUint8(data.thumbnail.decryptionParams.encryptedKey),
base64ToUint8(data.thumbnail.decryptionParams.keyDecryptionNonce),
base64ToUint8(event.key));
const thumbnail = sodium.crypto_secretbox_open_easy(
const thumbnail = await this.decrypt(
new Uint8Array(data.file),
base64ToUint8(data.thumbnail.decryptionParams.nonce),
key);
@ -36,6 +34,11 @@ class Crypto {
data: thumbnail,
};
}
async decrypt(data, nonce, key) {
await sodium.ready;
return sodium.crypto_secretbox_open_easy(data, nonce, key);
}
}
Comlink.expose(Crypto);