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feat: implement vault locking mechanism with auto-lock settings and unlock functionality

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shuaiplus
2026-02-27 22:39:27 +08:00
committed by Shuai
parent 930f4f86cc
commit 4831a0915c
3 changed files with 202 additions and 13 deletions
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public/web/crypto.js
+19 -4
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@@ -27,9 +27,25 @@ export async function pbkdf2(passwordOrBytes, saltOrBytes, iterations, keyLen) {
}
export async function hkdfExpand(prk, info, length) {
var key = await crypto.subtle.importKey('raw', prk, 'HKDF', false, ['deriveBits']);
var bits = await crypto.subtle.deriveBits({ name: 'HKDF', hash: 'SHA-256', salt: new Uint8Array(0), info: new TextEncoder().encode(info) }, key, length * 8);
return new Uint8Array(bits);
var enc = new TextEncoder();
var key = await crypto.subtle.importKey('raw', prk, { name: 'HMAC', hash: 'SHA-256' }, false, ['sign']);
var infoBytes = enc.encode(info || '');
var result = new Uint8Array(length);
var prev = new Uint8Array(0);
var off = 0;
var cnt = 1;
while (off < length) {
var inp = new Uint8Array(prev.length + infoBytes.length + 1);
inp.set(prev, 0);
inp.set(infoBytes, prev.length);
inp[inp.length - 1] = cnt & 0xff;
prev = new Uint8Array(await crypto.subtle.sign('HMAC', key, inp));
var c = Math.min(prev.length, length - off);
result.set(prev.slice(0, c), off);
off += c;
cnt += 1;
}
return result;
}
export async function hmacSha256(keyBytes, dataBytes) {
@@ -132,4 +148,3 @@ export async function calcTotpNow(rawSecret) {
var code = (bin % 1000000).toString().padStart(6, '0');
return { code: code, remain: remain };
}