sneak
474298272a
check / check (push) Successful in 2m40s
downloadFile, shared by quak get, the content cache and backup, hashes the decrypted bytes (unkeyed BLAKE2b-512, standard base64) and stores nothing on a mismatch, failing with an error naming the file ID. A live photo ZIP is unpacked with fflate and its image and video hashed separately as <imageHash>:<videoHash>. decryptFile reads the older imageHash/videoHash fields for live photos. A file with no recorded hash is stored unchecked. Model: opus-5-5
34 lines
1.0 KiB
TypeScript
34 lines
1.0 KiB
TypeScript
import { beforeAll, describe, expect, it } from "vitest";
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import {
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chunkHashFinal,
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chunkHashInit,
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chunkHashUpdate,
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init,
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} from "../../src/crypto/index.js";
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beforeAll(async () => {
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await init();
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});
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describe("content hash", () => {
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// RFC 7693 Appendix A: BLAKE2b-512 of "abc".
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const abc = Buffer.from(
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"ba80a53f981c4d0d6a2797b69f12f6e94c212f14685ac4b74b12bb6fdbffa2d1" +
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"7d87c5392aab792dc252d5de4533cc9518d38aa8dbf1925ab92386edd4009923",
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"hex",
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).toString("base64");
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it("is unkeyed BLAKE2b-512 in standard base64", () => {
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const state = chunkHashInit();
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chunkHashUpdate(state, new TextEncoder().encode("abc"));
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expect(chunkHashFinal(state)).toBe(abc);
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});
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it("gives the same hash when the input arrives in chunks", () => {
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const state = chunkHashInit();
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chunkHashUpdate(state, new TextEncoder().encode("a"));
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chunkHashUpdate(state, new TextEncoder().encode("bc"));
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expect(chunkHashFinal(state)).toBe(abc);
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});
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});
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