545563e776
- Complete NestJS TypeScript implementation with WebSocket support - Direct messaging (DM) and group chat functionality - End-to-end encryption with AES encryption and key pairs - Media file support (images, videos, audio, documents) up to 100MB - Push notifications with Firebase Cloud Messaging integration - Mention alerts and real-time typing indicators - User authentication with JWT and Passport - SQLite database with TypeORM entities and relationships - Comprehensive API documentation with Swagger/OpenAPI - File upload handling with secure access control - Online/offline status tracking and presence management - Message editing, deletion, and reply functionality - Notification management with automatic cleanup - Health check endpoint for monitoring - CORS configuration for cross-origin requests - Environment-based configuration management - Structured for Flutter SDK integration Features implemented: ✅ Real-time messaging with Socket.IO ✅ User registration and authentication ✅ Direct messages and group chats ✅ Media file uploads and management ✅ End-to-end encryption ✅ Push notifications ✅ Mention alerts ✅ Typing indicators ✅ Message read receipts ✅ Online status tracking ✅ File access control ✅ Comprehensive API documentation Ready for Flutter SDK development and production deployment.
232 lines
11 KiB
JavaScript
232 lines
11 KiB
JavaScript
"use strict";
|
||
Object.defineProperty(exports, "__esModule", { value: true });
|
||
exports.scrypt = scrypt;
|
||
exports.scryptAsync = scryptAsync;
|
||
/**
|
||
* RFC 7914 Scrypt KDF. Can be used to create a key from password and salt.
|
||
* @module
|
||
*/
|
||
const pbkdf2_ts_1 = require("./pbkdf2.js");
|
||
const sha2_ts_1 = require("./sha2.js");
|
||
// prettier-ignore
|
||
const utils_ts_1 = require("./utils.js");
|
||
// The main Scrypt loop: uses Salsa extensively.
|
||
// Six versions of the function were tried, this is the fastest one.
|
||
// prettier-ignore
|
||
function XorAndSalsa(prev, pi, input, ii, out, oi) {
|
||
// Based on https://cr.yp.to/salsa20.html
|
||
// Xor blocks
|
||
let y00 = prev[pi++] ^ input[ii++], y01 = prev[pi++] ^ input[ii++];
|
||
let y02 = prev[pi++] ^ input[ii++], y03 = prev[pi++] ^ input[ii++];
|
||
let y04 = prev[pi++] ^ input[ii++], y05 = prev[pi++] ^ input[ii++];
|
||
let y06 = prev[pi++] ^ input[ii++], y07 = prev[pi++] ^ input[ii++];
|
||
let y08 = prev[pi++] ^ input[ii++], y09 = prev[pi++] ^ input[ii++];
|
||
let y10 = prev[pi++] ^ input[ii++], y11 = prev[pi++] ^ input[ii++];
|
||
let y12 = prev[pi++] ^ input[ii++], y13 = prev[pi++] ^ input[ii++];
|
||
let y14 = prev[pi++] ^ input[ii++], y15 = prev[pi++] ^ input[ii++];
|
||
// Save state to temporary variables (salsa)
|
||
let x00 = y00, x01 = y01, x02 = y02, x03 = y03, x04 = y04, x05 = y05, x06 = y06, x07 = y07, x08 = y08, x09 = y09, x10 = y10, x11 = y11, x12 = y12, x13 = y13, x14 = y14, x15 = y15;
|
||
// Main loop (salsa)
|
||
for (let i = 0; i < 8; i += 2) {
|
||
x04 ^= (0, utils_ts_1.rotl)(x00 + x12 | 0, 7);
|
||
x08 ^= (0, utils_ts_1.rotl)(x04 + x00 | 0, 9);
|
||
x12 ^= (0, utils_ts_1.rotl)(x08 + x04 | 0, 13);
|
||
x00 ^= (0, utils_ts_1.rotl)(x12 + x08 | 0, 18);
|
||
x09 ^= (0, utils_ts_1.rotl)(x05 + x01 | 0, 7);
|
||
x13 ^= (0, utils_ts_1.rotl)(x09 + x05 | 0, 9);
|
||
x01 ^= (0, utils_ts_1.rotl)(x13 + x09 | 0, 13);
|
||
x05 ^= (0, utils_ts_1.rotl)(x01 + x13 | 0, 18);
|
||
x14 ^= (0, utils_ts_1.rotl)(x10 + x06 | 0, 7);
|
||
x02 ^= (0, utils_ts_1.rotl)(x14 + x10 | 0, 9);
|
||
x06 ^= (0, utils_ts_1.rotl)(x02 + x14 | 0, 13);
|
||
x10 ^= (0, utils_ts_1.rotl)(x06 + x02 | 0, 18);
|
||
x03 ^= (0, utils_ts_1.rotl)(x15 + x11 | 0, 7);
|
||
x07 ^= (0, utils_ts_1.rotl)(x03 + x15 | 0, 9);
|
||
x11 ^= (0, utils_ts_1.rotl)(x07 + x03 | 0, 13);
|
||
x15 ^= (0, utils_ts_1.rotl)(x11 + x07 | 0, 18);
|
||
x01 ^= (0, utils_ts_1.rotl)(x00 + x03 | 0, 7);
|
||
x02 ^= (0, utils_ts_1.rotl)(x01 + x00 | 0, 9);
|
||
x03 ^= (0, utils_ts_1.rotl)(x02 + x01 | 0, 13);
|
||
x00 ^= (0, utils_ts_1.rotl)(x03 + x02 | 0, 18);
|
||
x06 ^= (0, utils_ts_1.rotl)(x05 + x04 | 0, 7);
|
||
x07 ^= (0, utils_ts_1.rotl)(x06 + x05 | 0, 9);
|
||
x04 ^= (0, utils_ts_1.rotl)(x07 + x06 | 0, 13);
|
||
x05 ^= (0, utils_ts_1.rotl)(x04 + x07 | 0, 18);
|
||
x11 ^= (0, utils_ts_1.rotl)(x10 + x09 | 0, 7);
|
||
x08 ^= (0, utils_ts_1.rotl)(x11 + x10 | 0, 9);
|
||
x09 ^= (0, utils_ts_1.rotl)(x08 + x11 | 0, 13);
|
||
x10 ^= (0, utils_ts_1.rotl)(x09 + x08 | 0, 18);
|
||
x12 ^= (0, utils_ts_1.rotl)(x15 + x14 | 0, 7);
|
||
x13 ^= (0, utils_ts_1.rotl)(x12 + x15 | 0, 9);
|
||
x14 ^= (0, utils_ts_1.rotl)(x13 + x12 | 0, 13);
|
||
x15 ^= (0, utils_ts_1.rotl)(x14 + x13 | 0, 18);
|
||
}
|
||
// Write output (salsa)
|
||
out[oi++] = (y00 + x00) | 0;
|
||
out[oi++] = (y01 + x01) | 0;
|
||
out[oi++] = (y02 + x02) | 0;
|
||
out[oi++] = (y03 + x03) | 0;
|
||
out[oi++] = (y04 + x04) | 0;
|
||
out[oi++] = (y05 + x05) | 0;
|
||
out[oi++] = (y06 + x06) | 0;
|
||
out[oi++] = (y07 + x07) | 0;
|
||
out[oi++] = (y08 + x08) | 0;
|
||
out[oi++] = (y09 + x09) | 0;
|
||
out[oi++] = (y10 + x10) | 0;
|
||
out[oi++] = (y11 + x11) | 0;
|
||
out[oi++] = (y12 + x12) | 0;
|
||
out[oi++] = (y13 + x13) | 0;
|
||
out[oi++] = (y14 + x14) | 0;
|
||
out[oi++] = (y15 + x15) | 0;
|
||
}
|
||
function BlockMix(input, ii, out, oi, r) {
|
||
// The block B is r 128-byte chunks (which is equivalent of 2r 64-byte chunks)
|
||
let head = oi + 0;
|
||
let tail = oi + 16 * r;
|
||
for (let i = 0; i < 16; i++)
|
||
out[tail + i] = input[ii + (2 * r - 1) * 16 + i]; // X ← B[2r−1]
|
||
for (let i = 0; i < r; i++, head += 16, ii += 16) {
|
||
// We write odd & even Yi at same time. Even: 0bXXXXX0 Odd: 0bXXXXX1
|
||
XorAndSalsa(out, tail, input, ii, out, head); // head[i] = Salsa(blockIn[2*i] ^ tail[i-1])
|
||
if (i > 0)
|
||
tail += 16; // First iteration overwrites tmp value in tail
|
||
XorAndSalsa(out, head, input, (ii += 16), out, tail); // tail[i] = Salsa(blockIn[2*i+1] ^ head[i])
|
||
}
|
||
}
|
||
// Common prologue and epilogue for sync/async functions
|
||
function scryptInit(password, salt, _opts) {
|
||
// Maxmem - 1GB+1KB by default
|
||
const opts = (0, utils_ts_1.checkOpts)({
|
||
dkLen: 32,
|
||
asyncTick: 10,
|
||
maxmem: 1024 ** 3 + 1024,
|
||
}, _opts);
|
||
const { N, r, p, dkLen, asyncTick, maxmem, onProgress } = opts;
|
||
(0, utils_ts_1.anumber)(N);
|
||
(0, utils_ts_1.anumber)(r);
|
||
(0, utils_ts_1.anumber)(p);
|
||
(0, utils_ts_1.anumber)(dkLen);
|
||
(0, utils_ts_1.anumber)(asyncTick);
|
||
(0, utils_ts_1.anumber)(maxmem);
|
||
if (onProgress !== undefined && typeof onProgress !== 'function')
|
||
throw new Error('progressCb should be function');
|
||
const blockSize = 128 * r;
|
||
const blockSize32 = blockSize / 4;
|
||
// Max N is 2^32 (Integrify is 32-bit). Real limit is 2^22: JS engines Uint8Array limit is 4GB in 2024.
|
||
// Spec check `N >= 2^(blockSize / 8)` is not done for compat with popular libs,
|
||
// which used incorrect r: 1, p: 8. Also, the check seems to be a spec error:
|
||
// https://www.rfc-editor.org/errata_search.php?rfc=7914
|
||
const pow32 = Math.pow(2, 32);
|
||
if (N <= 1 || (N & (N - 1)) !== 0 || N > pow32) {
|
||
throw new Error('Scrypt: N must be larger than 1, a power of 2, and less than 2^32');
|
||
}
|
||
if (p < 0 || p > ((pow32 - 1) * 32) / blockSize) {
|
||
throw new Error('Scrypt: p must be a positive integer less than or equal to ((2^32 - 1) * 32) / (128 * r)');
|
||
}
|
||
if (dkLen < 0 || dkLen > (pow32 - 1) * 32) {
|
||
throw new Error('Scrypt: dkLen should be positive integer less than or equal to (2^32 - 1) * 32');
|
||
}
|
||
const memUsed = blockSize * (N + p);
|
||
if (memUsed > maxmem) {
|
||
throw new Error('Scrypt: memused is bigger than maxMem. Expected 128 * r * (N + p) > maxmem of ' + maxmem);
|
||
}
|
||
// [B0...Bp−1] ← PBKDF2HMAC-SHA256(Passphrase, Salt, 1, blockSize*ParallelizationFactor)
|
||
// Since it has only one iteration there is no reason to use async variant
|
||
const B = (0, pbkdf2_ts_1.pbkdf2)(sha2_ts_1.sha256, password, salt, { c: 1, dkLen: blockSize * p });
|
||
const B32 = (0, utils_ts_1.u32)(B);
|
||
// Re-used between parallel iterations. Array(iterations) of B
|
||
const V = (0, utils_ts_1.u32)(new Uint8Array(blockSize * N));
|
||
const tmp = (0, utils_ts_1.u32)(new Uint8Array(blockSize));
|
||
let blockMixCb = () => { };
|
||
if (onProgress) {
|
||
const totalBlockMix = 2 * N * p;
|
||
// Invoke callback if progress changes from 10.01 to 10.02
|
||
// Allows to draw smooth progress bar on up to 8K screen
|
||
const callbackPer = Math.max(Math.floor(totalBlockMix / 10000), 1);
|
||
let blockMixCnt = 0;
|
||
blockMixCb = () => {
|
||
blockMixCnt++;
|
||
if (onProgress && (!(blockMixCnt % callbackPer) || blockMixCnt === totalBlockMix))
|
||
onProgress(blockMixCnt / totalBlockMix);
|
||
};
|
||
}
|
||
return { N, r, p, dkLen, blockSize32, V, B32, B, tmp, blockMixCb, asyncTick };
|
||
}
|
||
function scryptOutput(password, dkLen, B, V, tmp) {
|
||
const res = (0, pbkdf2_ts_1.pbkdf2)(sha2_ts_1.sha256, password, B, { c: 1, dkLen });
|
||
(0, utils_ts_1.clean)(B, V, tmp);
|
||
return res;
|
||
}
|
||
/**
|
||
* Scrypt KDF from RFC 7914.
|
||
* @param password - pass
|
||
* @param salt - salt
|
||
* @param opts - parameters
|
||
* - `N` is cpu/mem work factor (power of 2 e.g. 2**18)
|
||
* - `r` is block size (8 is common), fine-tunes sequential memory read size and performance
|
||
* - `p` is parallelization factor (1 is common)
|
||
* - `dkLen` is output key length in bytes e.g. 32.
|
||
* - `asyncTick` - (default: 10) max time in ms for which async function can block execution
|
||
* - `maxmem` - (default: `1024 ** 3 + 1024` aka 1GB+1KB). A limit that the app could use for scrypt
|
||
* - `onProgress` - callback function that would be executed for progress report
|
||
* @returns Derived key
|
||
* @example
|
||
* scrypt('password', 'salt', { N: 2**18, r: 8, p: 1, dkLen: 32 });
|
||
*/
|
||
function scrypt(password, salt, opts) {
|
||
const { N, r, p, dkLen, blockSize32, V, B32, B, tmp, blockMixCb } = scryptInit(password, salt, opts);
|
||
(0, utils_ts_1.swap32IfBE)(B32);
|
||
for (let pi = 0; pi < p; pi++) {
|
||
const Pi = blockSize32 * pi;
|
||
for (let i = 0; i < blockSize32; i++)
|
||
V[i] = B32[Pi + i]; // V[0] = B[i]
|
||
for (let i = 0, pos = 0; i < N - 1; i++) {
|
||
BlockMix(V, pos, V, (pos += blockSize32), r); // V[i] = BlockMix(V[i-1]);
|
||
blockMixCb();
|
||
}
|
||
BlockMix(V, (N - 1) * blockSize32, B32, Pi, r); // Process last element
|
||
blockMixCb();
|
||
for (let i = 0; i < N; i++) {
|
||
// First u32 of the last 64-byte block (u32 is LE)
|
||
const j = B32[Pi + blockSize32 - 16] % N; // j = Integrify(X) % iterations
|
||
for (let k = 0; k < blockSize32; k++)
|
||
tmp[k] = B32[Pi + k] ^ V[j * blockSize32 + k]; // tmp = B ^ V[j]
|
||
BlockMix(tmp, 0, B32, Pi, r); // B = BlockMix(B ^ V[j])
|
||
blockMixCb();
|
||
}
|
||
}
|
||
(0, utils_ts_1.swap32IfBE)(B32);
|
||
return scryptOutput(password, dkLen, B, V, tmp);
|
||
}
|
||
/**
|
||
* Scrypt KDF from RFC 7914. Async version.
|
||
* @example
|
||
* await scryptAsync('password', 'salt', { N: 2**18, r: 8, p: 1, dkLen: 32 });
|
||
*/
|
||
async function scryptAsync(password, salt, opts) {
|
||
const { N, r, p, dkLen, blockSize32, V, B32, B, tmp, blockMixCb, asyncTick } = scryptInit(password, salt, opts);
|
||
(0, utils_ts_1.swap32IfBE)(B32);
|
||
for (let pi = 0; pi < p; pi++) {
|
||
const Pi = blockSize32 * pi;
|
||
for (let i = 0; i < blockSize32; i++)
|
||
V[i] = B32[Pi + i]; // V[0] = B[i]
|
||
let pos = 0;
|
||
await (0, utils_ts_1.asyncLoop)(N - 1, asyncTick, () => {
|
||
BlockMix(V, pos, V, (pos += blockSize32), r); // V[i] = BlockMix(V[i-1]);
|
||
blockMixCb();
|
||
});
|
||
BlockMix(V, (N - 1) * blockSize32, B32, Pi, r); // Process last element
|
||
blockMixCb();
|
||
await (0, utils_ts_1.asyncLoop)(N, asyncTick, () => {
|
||
// First u32 of the last 64-byte block (u32 is LE)
|
||
const j = B32[Pi + blockSize32 - 16] % N; // j = Integrify(X) % iterations
|
||
for (let k = 0; k < blockSize32; k++)
|
||
tmp[k] = B32[Pi + k] ^ V[j * blockSize32 + k]; // tmp = B ^ V[j]
|
||
BlockMix(tmp, 0, B32, Pi, r); // B = BlockMix(B ^ V[j])
|
||
blockMixCb();
|
||
});
|
||
}
|
||
(0, utils_ts_1.swap32IfBE)(B32);
|
||
return scryptOutput(password, dkLen, B, V, tmp);
|
||
}
|
||
//# sourceMappingURL=scrypt.js.map
|