@cityofzion/neon-js
Version:
Neon-JS SDK for interacting with NEO blockchain
1,459 lines (1,366 loc) • 1.93 MB
JavaScript
/******/ (() => { // webpackBootstrap
/******/ var __webpack_modules__ = ({
/***/ 8460:
/***/ ((__unused_webpack_module, exports) => {
"use strict";
Object.defineProperty(exports, "__esModule", ({ value: true }));
exports.isBytes = isBytes;
exports.number = number;
exports.bool = bool;
exports.bytes = bytes;
exports.hash = hash;
exports.exists = exists;
exports.output = output;
function number(n) {
if (!Number.isSafeInteger(n) || n < 0)
throw new Error(`positive integer expected, not ${n}`);
}
function bool(b) {
if (typeof b !== 'boolean')
throw new Error(`boolean expected, not ${b}`);
}
// copied from utils
function isBytes(a) {
return (a instanceof Uint8Array ||
(a != null && typeof a === 'object' && a.constructor.name === 'Uint8Array'));
}
function bytes(b, ...lengths) {
if (!isBytes(b))
throw new Error('Uint8Array expected');
if (lengths.length > 0 && !lengths.includes(b.length))
throw new Error(`Uint8Array expected of length ${lengths}, not of length=${b.length}`);
}
function hash(h) {
if (typeof h !== 'function' || typeof h.create !== 'function')
throw new Error('Hash should be wrapped by utils.wrapConstructor');
number(h.outputLen);
number(h.blockLen);
}
function exists(instance, checkFinished = true) {
if (instance.destroyed)
throw new Error('Hash instance has been destroyed');
if (checkFinished && instance.finished)
throw new Error('Hash#digest() has already been called');
}
function output(out, instance) {
bytes(out);
const min = instance.outputLen;
if (out.length < min) {
throw new Error(`digestInto() expects output buffer of length at least ${min}`);
}
}
const assert = { number, bool, bytes, hash, exists, output };
exports["default"] = assert;
//# sourceMappingURL=_assert.js.map
/***/ }),
/***/ 6423:
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {
"use strict";
Object.defineProperty(exports, "__esModule", ({ value: true }));
exports.HashMD = exports.Maj = exports.Chi = void 0;
const _assert_js_1 = __webpack_require__(8460);
const utils_js_1 = __webpack_require__(9074);
/**
* Polyfill for Safari 14
*/
function setBigUint64(view, byteOffset, value, isLE) {
if (typeof view.setBigUint64 === 'function')
return view.setBigUint64(byteOffset, value, isLE);
const _32n = BigInt(32);
const _u32_max = BigInt(0xffffffff);
const wh = Number((value >> _32n) & _u32_max);
const wl = Number(value & _u32_max);
const h = isLE ? 4 : 0;
const l = isLE ? 0 : 4;
view.setUint32(byteOffset + h, wh, isLE);
view.setUint32(byteOffset + l, wl, isLE);
}
/**
* Choice: a ? b : c
*/
const Chi = (a, b, c) => (a & b) ^ (~a & c);
exports.Chi = Chi;
/**
* Majority function, true if any two inputs is true
*/
const Maj = (a, b, c) => (a & b) ^ (a & c) ^ (b & c);
exports.Maj = Maj;
/**
* Merkle-Damgard hash construction base class.
* Could be used to create MD5, RIPEMD, SHA1, SHA2.
*/
class HashMD extends utils_js_1.Hash {
constructor(blockLen, outputLen, padOffset, isLE) {
super();
this.blockLen = blockLen;
this.outputLen = outputLen;
this.padOffset = padOffset;
this.isLE = isLE;
this.finished = false;
this.length = 0;
this.pos = 0;
this.destroyed = false;
this.buffer = new Uint8Array(blockLen);
this.view = (0, utils_js_1.createView)(this.buffer);
}
update(data) {
(0, _assert_js_1.exists)(this);
const { view, buffer, blockLen } = this;
data = (0, utils_js_1.toBytes)(data);
const len = data.length;
for (let pos = 0; pos < len;) {
const take = Math.min(blockLen - this.pos, len - pos);
// Fast path: we have at least one block in input, cast it to view and process
if (take === blockLen) {
const dataView = (0, utils_js_1.createView)(data);
for (; blockLen <= len - pos; pos += blockLen)
this.process(dataView, pos);
continue;
}
buffer.set(data.subarray(pos, pos + take), this.pos);
this.pos += take;
pos += take;
if (this.pos === blockLen) {
this.process(view, 0);
this.pos = 0;
}
}
this.length += data.length;
this.roundClean();
return this;
}
digestInto(out) {
(0, _assert_js_1.exists)(this);
(0, _assert_js_1.output)(out, this);
this.finished = true;
// Padding
// We can avoid allocation of buffer for padding completely if it
// was previously not allocated here. But it won't change performance.
const { buffer, view, blockLen, isLE } = this;
let { pos } = this;
// append the bit '1' to the message
buffer[pos++] = 0b10000000;
this.buffer.subarray(pos).fill(0);
// we have less than padOffset left in buffer, so we cannot put length in
// current block, need process it and pad again
if (this.padOffset > blockLen - pos) {
this.process(view, 0);
pos = 0;
}
// Pad until full block byte with zeros
for (let i = pos; i < blockLen; i++)
buffer[i] = 0;
// Note: sha512 requires length to be 128bit integer, but length in JS will overflow before that
// You need to write around 2 exabytes (u64_max / 8 / (1024**6)) for this to happen.
// So we just write lowest 64 bits of that value.
setBigUint64(view, blockLen - 8, BigInt(this.length * 8), isLE);
this.process(view, 0);
const oview = (0, utils_js_1.createView)(out);
const len = this.outputLen;
// NOTE: we do division by 4 later, which should be fused in single op with modulo by JIT
if (len % 4)
throw new Error('_sha2: outputLen should be aligned to 32bit');
const outLen = len / 4;
const state = this.get();
if (outLen > state.length)
throw new Error('_sha2: outputLen bigger than state');
for (let i = 0; i < outLen; i++)
oview.setUint32(4 * i, state[i], isLE);
}
digest() {
const { buffer, outputLen } = this;
this.digestInto(buffer);
const res = buffer.slice(0, outputLen);
this.destroy();
return res;
}
_cloneInto(to) {
to || (to = new this.constructor());
to.set(...this.get());
const { blockLen, buffer, length, finished, destroyed, pos } = this;
to.length = length;
to.pos = pos;
to.finished = finished;
to.destroyed = destroyed;
if (length % blockLen)
to.buffer.set(buffer);
return to;
}
}
exports.HashMD = HashMD;
//# sourceMappingURL=_md.js.map
/***/ }),
/***/ 6134:
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {
"use strict";
Object.defineProperty(exports, "__esModule", ({ value: true }));
exports.crypto = void 0;
// We prefer WebCrypto aka globalThis.crypto, which exists in node.js 16+.
// Falls back to Node.js built-in crypto for Node.js <=v14
// See utils.ts for details.
// @ts-ignore
const nc = __webpack_require__(7598);
exports.crypto = nc && typeof nc === 'object' && 'webcrypto' in nc
? nc.webcrypto
: nc && typeof nc === 'object' && 'randomBytes' in nc
? nc
: undefined;
//# sourceMappingURL=cryptoNode.js.map
/***/ }),
/***/ 4500:
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {
"use strict";
Object.defineProperty(exports, "__esModule", ({ value: true }));
exports.hmac = exports.HMAC = void 0;
const _assert_js_1 = __webpack_require__(8460);
const utils_js_1 = __webpack_require__(9074);
// HMAC (RFC 2104)
class HMAC extends utils_js_1.Hash {
constructor(hash, _key) {
super();
this.finished = false;
this.destroyed = false;
(0, _assert_js_1.hash)(hash);
const key = (0, utils_js_1.toBytes)(_key);
this.iHash = hash.create();
if (typeof this.iHash.update !== 'function')
throw new Error('Expected instance of class which extends utils.Hash');
this.blockLen = this.iHash.blockLen;
this.outputLen = this.iHash.outputLen;
const blockLen = this.blockLen;
const pad = new Uint8Array(blockLen);
// blockLen can be bigger than outputLen
pad.set(key.length > blockLen ? hash.create().update(key).digest() : key);
for (let i = 0; i < pad.length; i++)
pad[i] ^= 0x36;
this.iHash.update(pad);
// By doing update (processing of first block) of outer hash here we can re-use it between multiple calls via clone
this.oHash = hash.create();
// Undo internal XOR && apply outer XOR
for (let i = 0; i < pad.length; i++)
pad[i] ^= 0x36 ^ 0x5c;
this.oHash.update(pad);
pad.fill(0);
}
update(buf) {
(0, _assert_js_1.exists)(this);
this.iHash.update(buf);
return this;
}
digestInto(out) {
(0, _assert_js_1.exists)(this);
(0, _assert_js_1.bytes)(out, this.outputLen);
this.finished = true;
this.iHash.digestInto(out);
this.oHash.update(out);
this.oHash.digestInto(out);
this.destroy();
}
digest() {
const out = new Uint8Array(this.oHash.outputLen);
this.digestInto(out);
return out;
}
_cloneInto(to) {
// Create new instance without calling constructor since key already in state and we don't know it.
to || (to = Object.create(Object.getPrototypeOf(this), {}));
const { oHash, iHash, finished, destroyed, blockLen, outputLen } = this;
to = to;
to.finished = finished;
to.destroyed = destroyed;
to.blockLen = blockLen;
to.outputLen = outputLen;
to.oHash = oHash._cloneInto(to.oHash);
to.iHash = iHash._cloneInto(to.iHash);
return to;
}
destroy() {
this.destroyed = true;
this.oHash.destroy();
this.iHash.destroy();
}
}
exports.HMAC = HMAC;
/**
* HMAC: RFC2104 message authentication code.
* @param hash - function that would be used e.g. sha256
* @param key - message key
* @param message - message data
* @example
* import { hmac } from '@noble/hashes/hmac';
* import { sha256 } from '@noble/hashes/sha2';
* const mac1 = hmac(sha256, 'key', 'message');
*/
const hmac = (hash, key, message) => new HMAC(hash, key).update(message).digest();
exports.hmac = hmac;
exports.hmac.create = (hash, key) => new HMAC(hash, key);
//# sourceMappingURL=hmac.js.map
/***/ }),
/***/ 7154:
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {
"use strict";
Object.defineProperty(exports, "__esModule", ({ value: true }));
exports.pbkdf2 = pbkdf2;
exports.pbkdf2Async = pbkdf2Async;
const _assert_js_1 = __webpack_require__(8460);
const hmac_js_1 = __webpack_require__(4500);
const utils_js_1 = __webpack_require__(9074);
// Common prologue and epilogue for sync/async functions
function pbkdf2Init(hash, _password, _salt, _opts) {
(0, _assert_js_1.hash)(hash);
const opts = (0, utils_js_1.checkOpts)({ dkLen: 32, asyncTick: 10 }, _opts);
const { c, dkLen, asyncTick } = opts;
(0, _assert_js_1.number)(c);
(0, _assert_js_1.number)(dkLen);
(0, _assert_js_1.number)(asyncTick);
if (c < 1)
throw new Error('PBKDF2: iterations (c) should be >= 1');
const password = (0, utils_js_1.toBytes)(_password);
const salt = (0, utils_js_1.toBytes)(_salt);
// DK = PBKDF2(PRF, Password, Salt, c, dkLen);
const DK = new Uint8Array(dkLen);
// U1 = PRF(Password, Salt + INT_32_BE(i))
const PRF = hmac_js_1.hmac.create(hash, password);
const PRFSalt = PRF._cloneInto().update(salt);
return { c, dkLen, asyncTick, DK, PRF, PRFSalt };
}
function pbkdf2Output(PRF, PRFSalt, DK, prfW, u) {
PRF.destroy();
PRFSalt.destroy();
if (prfW)
prfW.destroy();
u.fill(0);
return DK;
}
/**
* PBKDF2-HMAC: RFC 2898 key derivation function
* @param hash - hash function that would be used e.g. sha256
* @param password - password from which a derived key is generated
* @param salt - cryptographic salt
* @param opts - {c, dkLen} where c is work factor and dkLen is output message size
*/
function pbkdf2(hash, password, salt, opts) {
const { c, dkLen, DK, PRF, PRFSalt } = pbkdf2Init(hash, password, salt, opts);
let prfW; // Working copy
const arr = new Uint8Array(4);
const view = (0, utils_js_1.createView)(arr);
const u = new Uint8Array(PRF.outputLen);
// DK = T1 + T2 + ⋯ + Tdklen/hlen
for (let ti = 1, pos = 0; pos < dkLen; ti++, pos += PRF.outputLen) {
// Ti = F(Password, Salt, c, i)
const Ti = DK.subarray(pos, pos + PRF.outputLen);
view.setInt32(0, ti, false);
// F(Password, Salt, c, i) = U1 ^ U2 ^ ⋯ ^ Uc
// U1 = PRF(Password, Salt + INT_32_BE(i))
(prfW = PRFSalt._cloneInto(prfW)).update(arr).digestInto(u);
Ti.set(u.subarray(0, Ti.length));
for (let ui = 1; ui < c; ui++) {
// Uc = PRF(Password, Uc−1)
PRF._cloneInto(prfW).update(u).digestInto(u);
for (let i = 0; i < Ti.length; i++)
Ti[i] ^= u[i];
}
}
return pbkdf2Output(PRF, PRFSalt, DK, prfW, u);
}
async function pbkdf2Async(hash, password, salt, opts) {
const { c, dkLen, asyncTick, DK, PRF, PRFSalt } = pbkdf2Init(hash, password, salt, opts);
let prfW; // Working copy
const arr = new Uint8Array(4);
const view = (0, utils_js_1.createView)(arr);
const u = new Uint8Array(PRF.outputLen);
// DK = T1 + T2 + ⋯ + Tdklen/hlen
for (let ti = 1, pos = 0; pos < dkLen; ti++, pos += PRF.outputLen) {
// Ti = F(Password, Salt, c, i)
const Ti = DK.subarray(pos, pos + PRF.outputLen);
view.setInt32(0, ti, false);
// F(Password, Salt, c, i) = U1 ^ U2 ^ ⋯ ^ Uc
// U1 = PRF(Password, Salt + INT_32_BE(i))
(prfW = PRFSalt._cloneInto(prfW)).update(arr).digestInto(u);
Ti.set(u.subarray(0, Ti.length));
await (0, utils_js_1.asyncLoop)(c - 1, asyncTick, () => {
// Uc = PRF(Password, Uc−1)
PRF._cloneInto(prfW).update(u).digestInto(u);
for (let i = 0; i < Ti.length; i++)
Ti[i] ^= u[i];
});
}
return pbkdf2Output(PRF, PRFSalt, DK, prfW, u);
}
//# sourceMappingURL=pbkdf2.js.map
/***/ }),
/***/ 5308:
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {
"use strict";
Object.defineProperty(exports, "__esModule", ({ value: true }));
exports.scrypt = scrypt;
exports.scryptAsync = scryptAsync;
const _assert_js_1 = __webpack_require__(8460);
const sha256_js_1 = __webpack_require__(9688);
const pbkdf2_js_1 = __webpack_require__(7154);
const utils_js_1 = __webpack_require__(9074);
// RFC 7914 Scrypt KDF
// 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_js_1.rotl)(x00 + x12 | 0, 7);
x08 ^= (0, utils_js_1.rotl)(x04 + x00 | 0, 9);
x12 ^= (0, utils_js_1.rotl)(x08 + x04 | 0, 13);
x00 ^= (0, utils_js_1.rotl)(x12 + x08 | 0, 18);
x09 ^= (0, utils_js_1.rotl)(x05 + x01 | 0, 7);
x13 ^= (0, utils_js_1.rotl)(x09 + x05 | 0, 9);
x01 ^= (0, utils_js_1.rotl)(x13 + x09 | 0, 13);
x05 ^= (0, utils_js_1.rotl)(x01 + x13 | 0, 18);
x14 ^= (0, utils_js_1.rotl)(x10 + x06 | 0, 7);
x02 ^= (0, utils_js_1.rotl)(x14 + x10 | 0, 9);
x06 ^= (0, utils_js_1.rotl)(x02 + x14 | 0, 13);
x10 ^= (0, utils_js_1.rotl)(x06 + x02 | 0, 18);
x03 ^= (0, utils_js_1.rotl)(x15 + x11 | 0, 7);
x07 ^= (0, utils_js_1.rotl)(x03 + x15 | 0, 9);
x11 ^= (0, utils_js_1.rotl)(x07 + x03 | 0, 13);
x15 ^= (0, utils_js_1.rotl)(x11 + x07 | 0, 18);
x01 ^= (0, utils_js_1.rotl)(x00 + x03 | 0, 7);
x02 ^= (0, utils_js_1.rotl)(x01 + x00 | 0, 9);
x03 ^= (0, utils_js_1.rotl)(x02 + x01 | 0, 13);
x00 ^= (0, utils_js_1.rotl)(x03 + x02 | 0, 18);
x06 ^= (0, utils_js_1.rotl)(x05 + x04 | 0, 7);
x07 ^= (0, utils_js_1.rotl)(x06 + x05 | 0, 9);
x04 ^= (0, utils_js_1.rotl)(x07 + x06 | 0, 13);
x05 ^= (0, utils_js_1.rotl)(x04 + x07 | 0, 18);
x11 ^= (0, utils_js_1.rotl)(x10 + x09 | 0, 7);
x08 ^= (0, utils_js_1.rotl)(x11 + x10 | 0, 9);
x09 ^= (0, utils_js_1.rotl)(x08 + x11 | 0, 13);
x10 ^= (0, utils_js_1.rotl)(x09 + x08 | 0, 18);
x12 ^= (0, utils_js_1.rotl)(x15 + x14 | 0, 7);
x13 ^= (0, utils_js_1.rotl)(x12 + x15 | 0, 9);
x14 ^= (0, utils_js_1.rotl)(x13 + x12 | 0, 13);
x15 ^= (0, utils_js_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_js_1.checkOpts)({
dkLen: 32,
asyncTick: 10,
maxmem: 1024 ** 3 + 1024,
}, _opts);
const { N, r, p, dkLen, asyncTick, maxmem, onProgress } = opts;
(0, _assert_js_1.number)(N);
(0, _assert_js_1.number)(r);
(0, _assert_js_1.number)(p);
(0, _assert_js_1.number)(dkLen);
(0, _assert_js_1.number)(asyncTick);
(0, _assert_js_1.number)(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
if (N <= 1 || (N & (N - 1)) !== 0 || N > 2 ** 32) {
throw new Error('Scrypt: N must be larger than 1, a power of 2, and less than 2^32');
}
if (p < 0 || p > ((2 ** 32 - 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 > (2 ** 32 - 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: parameters too large, ${memUsed} (128 * r * (N + p)) > ${maxmem} (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_js_1.pbkdf2)(sha256_js_1.sha256, password, salt, { c: 1, dkLen: blockSize * p });
const B32 = (0, utils_js_1.u32)(B);
// Re-used between parallel iterations. Array(iterations) of B
const V = (0, utils_js_1.u32)(new Uint8Array(blockSize * N));
const tmp = (0, utils_js_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_js_1.pbkdf2)(sha256_js_1.sha256, password, B, { c: 1, dkLen });
B.fill(0);
V.fill(0);
tmp.fill(0);
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
*/
function scrypt(password, salt, opts) {
const { N, r, p, dkLen, blockSize32, V, B32, B, tmp, blockMixCb } = scryptInit(password, salt, opts);
if (!utils_js_1.isLE)
(0, utils_js_1.byteSwap32)(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();
}
}
if (!utils_js_1.isLE)
(0, utils_js_1.byteSwap32)(B32);
return scryptOutput(password, dkLen, B, V, tmp);
}
/**
* Scrypt KDF from RFC 7914.
*/
async function scryptAsync(password, salt, opts) {
const { N, r, p, dkLen, blockSize32, V, B32, B, tmp, blockMixCb, asyncTick } = scryptInit(password, salt, opts);
if (!utils_js_1.isLE)
(0, utils_js_1.byteSwap32)(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_js_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_js_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();
});
}
if (!utils_js_1.isLE)
(0, utils_js_1.byteSwap32)(B32);
return scryptOutput(password, dkLen, B, V, tmp);
}
//# sourceMappingURL=scrypt.js.map
/***/ }),
/***/ 9688:
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {
"use strict";
Object.defineProperty(exports, "__esModule", ({ value: true }));
exports.sha224 = exports.sha256 = exports.SHA256 = void 0;
const _md_js_1 = __webpack_require__(6423);
const utils_js_1 = __webpack_require__(9074);
// SHA2-256 need to try 2^128 hashes to execute birthday attack.
// BTC network is doing 2^67 hashes/sec as per early 2023.
// Round constants:
// first 32 bits of the fractional parts of the cube roots of the first 64 primes 2..311)
// prettier-ignore
const SHA256_K = /* @__PURE__ */ new Uint32Array([
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
]);
// Initial state:
// first 32 bits of the fractional parts of the square roots of the first 8 primes 2..19
// prettier-ignore
const SHA256_IV = /* @__PURE__ */ new Uint32Array([
0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19
]);
// Temporary buffer, not used to store anything between runs
// Named this way because it matches specification.
const SHA256_W = /* @__PURE__ */ new Uint32Array(64);
class SHA256 extends _md_js_1.HashMD {
constructor() {
super(64, 32, 8, false);
// We cannot use array here since array allows indexing by variable
// which means optimizer/compiler cannot use registers.
this.A = SHA256_IV[0] | 0;
this.B = SHA256_IV[1] | 0;
this.C = SHA256_IV[2] | 0;
this.D = SHA256_IV[3] | 0;
this.E = SHA256_IV[4] | 0;
this.F = SHA256_IV[5] | 0;
this.G = SHA256_IV[6] | 0;
this.H = SHA256_IV[7] | 0;
}
get() {
const { A, B, C, D, E, F, G, H } = this;
return [A, B, C, D, E, F, G, H];
}
// prettier-ignore
set(A, B, C, D, E, F, G, H) {
this.A = A | 0;
this.B = B | 0;
this.C = C | 0;
this.D = D | 0;
this.E = E | 0;
this.F = F | 0;
this.G = G | 0;
this.H = H | 0;
}
process(view, offset) {
// Extend the first 16 words into the remaining 48 words w[16..63] of the message schedule array
for (let i = 0; i < 16; i++, offset += 4)
SHA256_W[i] = view.getUint32(offset, false);
for (let i = 16; i < 64; i++) {
const W15 = SHA256_W[i - 15];
const W2 = SHA256_W[i - 2];
const s0 = (0, utils_js_1.rotr)(W15, 7) ^ (0, utils_js_1.rotr)(W15, 18) ^ (W15 >>> 3);
const s1 = (0, utils_js_1.rotr)(W2, 17) ^ (0, utils_js_1.rotr)(W2, 19) ^ (W2 >>> 10);
SHA256_W[i] = (s1 + SHA256_W[i - 7] + s0 + SHA256_W[i - 16]) | 0;
}
// Compression function main loop, 64 rounds
let { A, B, C, D, E, F, G, H } = this;
for (let i = 0; i < 64; i++) {
const sigma1 = (0, utils_js_1.rotr)(E, 6) ^ (0, utils_js_1.rotr)(E, 11) ^ (0, utils_js_1.rotr)(E, 25);
const T1 = (H + sigma1 + (0, _md_js_1.Chi)(E, F, G) + SHA256_K[i] + SHA256_W[i]) | 0;
const sigma0 = (0, utils_js_1.rotr)(A, 2) ^ (0, utils_js_1.rotr)(A, 13) ^ (0, utils_js_1.rotr)(A, 22);
const T2 = (sigma0 + (0, _md_js_1.Maj)(A, B, C)) | 0;
H = G;
G = F;
F = E;
E = (D + T1) | 0;
D = C;
C = B;
B = A;
A = (T1 + T2) | 0;
}
// Add the compressed chunk to the current hash value
A = (A + this.A) | 0;
B = (B + this.B) | 0;
C = (C + this.C) | 0;
D = (D + this.D) | 0;
E = (E + this.E) | 0;
F = (F + this.F) | 0;
G = (G + this.G) | 0;
H = (H + this.H) | 0;
this.set(A, B, C, D, E, F, G, H);
}
roundClean() {
SHA256_W.fill(0);
}
destroy() {
this.set(0, 0, 0, 0, 0, 0, 0, 0);
this.buffer.fill(0);
}
}
exports.SHA256 = SHA256;
// Constants from https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.180-4.pdf
class SHA224 extends SHA256 {
constructor() {
super();
this.A = 0xc1059ed8 | 0;
this.B = 0x367cd507 | 0;
this.C = 0x3070dd17 | 0;
this.D = 0xf70e5939 | 0;
this.E = 0xffc00b31 | 0;
this.F = 0x68581511 | 0;
this.G = 0x64f98fa7 | 0;
this.H = 0xbefa4fa4 | 0;
this.outputLen = 28;
}
}
/**
* SHA2-256 hash function
* @param message - data that would be hashed
*/
exports.sha256 = (0, utils_js_1.wrapConstructor)(() => new SHA256());
/**
* SHA2-224 hash function
*/
exports.sha224 = (0, utils_js_1.wrapConstructor)(() => new SHA224());
//# sourceMappingURL=sha256.js.map
/***/ }),
/***/ 9074:
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {
"use strict";
/*! noble-hashes - MIT License (c) 2022 Paul Miller (paulmillr.com) */
Object.defineProperty(exports, "__esModule", ({ value: true }));
exports.Hash = exports.nextTick = exports.byteSwapIfBE = exports.byteSwap = exports.isLE = exports.rotl = exports.rotr = exports.createView = exports.u32 = exports.u8 = void 0;
exports.isBytes = isBytes;
exports.byteSwap32 = byteSwap32;
exports.bytesToHex = bytesToHex;
exports.hexToBytes = hexToBytes;
exports.asyncLoop = asyncLoop;
exports.utf8ToBytes = utf8ToBytes;
exports.toBytes = toBytes;
exports.concatBytes = concatBytes;
exports.checkOpts = checkOpts;
exports.wrapConstructor = wrapConstructor;
exports.wrapConstructorWithOpts = wrapConstructorWithOpts;
exports.wrapXOFConstructorWithOpts = wrapXOFConstructorWithOpts;
exports.randomBytes = randomBytes;
// We use WebCrypto aka globalThis.crypto, which exists in browsers and node.js 16+.
// node.js versions earlier than v19 don't declare it in global scope.
// For node.js, package.json#exports field mapping rewrites import
// from `crypto` to `cryptoNode`, which imports native module.
// Makes the utils un-importable in browsers without a bundler.
// Once node.js 18 is deprecated (2025-04-30), we can just drop the import.
const crypto_1 = __webpack_require__(6134);
const _assert_js_1 = __webpack_require__(8460);
// export { isBytes } from './_assert.js';
// We can't reuse isBytes from _assert, because somehow this causes huge perf issues
function isBytes(a) {
return (a instanceof Uint8Array ||
(a != null && typeof a === 'object' && a.constructor.name === 'Uint8Array'));
}
// Cast array to different type
const u8 = (arr) => new Uint8Array(arr.buffer, arr.byteOffset, arr.byteLength);
exports.u8 = u8;
const u32 = (arr) => new Uint32Array(arr.buffer, arr.byteOffset, Math.floor(arr.byteLength / 4));
exports.u32 = u32;
// Cast array to view
const createView = (arr) => new DataView(arr.buffer, arr.byteOffset, arr.byteLength);
exports.createView = createView;
// The rotate right (circular right shift) operation for uint32
const rotr = (word, shift) => (word << (32 - shift)) | (word >>> shift);
exports.rotr = rotr;
// The rotate left (circular left shift) operation for uint32
const rotl = (word, shift) => (word << shift) | ((word >>> (32 - shift)) >>> 0);
exports.rotl = rotl;
exports.isLE = new Uint8Array(new Uint32Array([0x11223344]).buffer)[0] === 0x44;
// The byte swap operation for uint32
const byteSwap = (word) => ((word << 24) & 0xff000000) |
((word << 8) & 0xff0000) |
((word >>> 8) & 0xff00) |
((word >>> 24) & 0xff);
exports.byteSwap = byteSwap;
// Conditionally byte swap if on a big-endian platform
exports.byteSwapIfBE = exports.isLE ? (n) => n : (n) => (0, exports.byteSwap)(n);
// In place byte swap for Uint32Array
function byteSwap32(arr) {
for (let i = 0; i < arr.length; i++) {
arr[i] = (0, exports.byteSwap)(arr[i]);
}
}
// Array where index 0xf0 (240) is mapped to string 'f0'
const hexes = /* @__PURE__ */ Array.from({ length: 256 }, (_, i) => i.toString(16).padStart(2, '0'));
/**
* @example bytesToHex(Uint8Array.from([0xca, 0xfe, 0x01, 0x23])) // 'cafe0123'
*/
function bytesToHex(bytes) {
(0, _assert_js_1.bytes)(bytes);
// pre-caching improves the speed 6x
let hex = '';
for (let i = 0; i < bytes.length; i++) {
hex += hexes[bytes[i]];
}
return hex;
}
// We use optimized technique to convert hex string to byte array
const asciis = { _0: 48, _9: 57, _A: 65, _F: 70, _a: 97, _f: 102 };
function asciiToBase16(char) {
if (char >= asciis._0 && char <= asciis._9)
return char - asciis._0;
if (char >= asciis._A && char <= asciis._F)
return char - (asciis._A - 10);
if (char >= asciis._a && char <= asciis._f)
return char - (asciis._a - 10);
return;
}
/**
* @example hexToBytes('cafe0123') // Uint8Array.from([0xca, 0xfe, 0x01, 0x23])
*/
function hexToBytes(hex) {
if (typeof hex !== 'string')
throw new Error('hex string expected, got ' + typeof hex);
const hl = hex.length;
const al = hl / 2;
if (hl % 2)
throw new Error('padded hex string expected, got unpadded hex of length ' + hl);
const array = new Uint8Array(al);
for (let ai = 0, hi = 0; ai < al; ai++, hi += 2) {
const n1 = asciiToBase16(hex.charCodeAt(hi));
const n2 = asciiToBase16(hex.charCodeAt(hi + 1));
if (n1 === undefined || n2 === undefined) {
const char = hex[hi] + hex[hi + 1];
throw new Error('hex string expected, got non-hex character "' + char + '" at index ' + hi);
}
array[ai] = n1 * 16 + n2;
}
return array;
}
// There is no setImmediate in browser and setTimeout is slow.
// call of async fn will return Promise, which will be fullfiled only on
// next scheduler queue processing step and this is exactly what we need.
const nextTick = async () => { };
exports.nextTick = nextTick;
// Returns control to thread each 'tick' ms to avoid blocking
async function asyncLoop(iters, tick, cb) {
let ts = Date.now();
for (let i = 0; i < iters; i++) {
cb(i);
// Date.now() is not monotonic, so in case if clock goes backwards we return return control too
const diff = Date.now() - ts;
if (diff >= 0 && diff < tick)
continue;
await (0, exports.nextTick)();
ts += diff;
}
}
/**
* @example utf8ToBytes('abc') // new Uint8Array([97, 98, 99])
*/
function utf8ToBytes(str) {
if (typeof str !== 'string')
throw new Error(`utf8ToBytes expected string, got ${typeof str}`);
return new Uint8Array(new TextEncoder().encode(str)); // https://bugzil.la/1681809
}
/**
* Normalizes (non-hex) string or Uint8Array to Uint8Array.
* Warning: when Uint8Array is passed, it would NOT get copied.
* Keep in mind for future mutable operations.
*/
function toBytes(data) {
if (typeof data === 'string')
data = utf8ToBytes(data);
(0, _assert_js_1.bytes)(data);
return data;
}
/**
* Copies several Uint8Arrays into one.
*/
function concatBytes(...arrays) {
let sum = 0;
for (let i = 0; i < arrays.length; i++) {
const a = arrays[i];
(0, _assert_js_1.bytes)(a);
sum += a.length;
}
const res = new Uint8Array(sum);
for (let i = 0, pad = 0; i < arrays.length; i++) {
const a = arrays[i];
res.set(a, pad);
pad += a.length;
}
return res;
}
// For runtime check if class implements interface
class Hash {
// Safe version that clones internal state
clone() {
return this._cloneInto();
}
}
exports.Hash = Hash;
const toStr = {}.toString;
function checkOpts(defaults, opts) {
if (opts !== undefined && toStr.call(opts) !== '[object Object]')
throw new Error('Options should be object or undefined');
const merged = Object.assign(defaults, opts);
return merged;
}
function wrapConstructor(hashCons) {
const hashC = (msg) => hashCons().update(toBytes(msg)).digest();
const tmp = hashCons();
hashC.outputLen = tmp.outputLen;
hashC.blockLen = tmp.blockLen;
hashC.create = () => hashCons();
return hashC;
}
function wrapConstructorWithOpts(hashCons) {
const hashC = (msg, opts) => hashCons(opts).update(toBytes(msg)).digest();
const tmp = hashCons({});
hashC.outputLen = tmp.outputLen;
hashC.blockLen = tmp.blockLen;
hashC.create = (opts) => hashCons(opts);
return hashC;
}
function wrapXOFConstructorWithOpts(hashCons) {
const hashC = (msg, opts) => hashCons(opts).update(toBytes(msg)).digest();
const tmp = hashCons({});
hashC.outputLen = tmp.outputLen;
hashC.blockLen = tmp.blockLen;
hashC.create = (opts) => hashCons(opts);
return hashC;
}
/**
* Secure PRNG. Uses `crypto.getRandomValues`, which defers to OS.
*/
function randomBytes(bytesLength = 32) {
if (crypto_1.crypto && typeof crypto_1.crypto.getRandomValues === 'function') {
return crypto_1.crypto.getRandomValues(new Uint8Array(bytesLength));
}
// Legacy Node.js compatibility
if (crypto_1.crypto && typeof crypto_1.crypto.randomBytes === 'function') {
return crypto_1.crypto.randomBytes(bytesLength);
}
throw new Error('crypto.getRandomValues must be defined');
}
//# sourceMappingURL=utils.js.map
/***/ }),
/***/ 2823:
/***/ (function(module, __unused_webpack_exports, __webpack_require__) {
/* module decorator */ module = __webpack_require__.nmd(module);
(function (module, exports) {
'use strict';
// Utils
function assert (val, msg) {
if (!val) throw new Error(msg || 'Assertion failed');
}
// Could use `inherits` module, but don't want to move from single file
// architecture yet.
function inherits (ctor, superCtor) {
ctor.super_ = superCtor;
var TempCtor = function () {};
TempCtor.prototype = superCtor.prototype;
ctor.prototype = new TempCtor();
ctor.prototype.constructor = ctor;
}
// BN
function BN (number, base, endian) {
if (BN.isBN(number)) {
return number;
}
this.negative = 0;
this.words = null;
this.length = 0;
// Reduction context
this.red = null;
if (number !== null) {
if (base === 'le' || base === 'be') {
endian = base;
base = 10;
}
this._init(number || 0, base || 10, endian || 'be');
}
}
if (typeof module === 'object') {
module.exports = BN;
} else {
exports.BN = BN;
}
BN.BN = BN;
BN.wordSize = 26;
var Buffer;
try {
if (typeof window !== 'undefined' && typeof window.Buffer !== 'undefined') {
Buffer = window.Buffer;
} else {
Buffer = (__webpack_require__(181).Buffer);
}
} catch (e) {
}
BN.isBN = function isBN (num) {
if (num instanceof BN) {
return true;
}
return num !== null && typeof num === 'object' &&
num.constructor.wordSize === BN.wordSize && Array.isArray(num.words);
};
BN.max = function max (left, right) {
if (left.cmp(right) > 0) return left;
return right;
};
BN.min = function min (left, right) {
if (left.cmp(right) < 0) return left;
return right;
};
BN.prototype._init = function init (number, base, endian) {
if (typeof number === 'number') {
return this._initNumber(number, base, endian);
}
if (typeof number === 'object') {
return this._initArray(number, base, endian);
}
if (base === 'hex') {
base = 16;
}
assert(base === (base | 0) && base >= 2 && base <= 36);
number = number.toString().replace(/\s+/g, '');
var start = 0;
if (number[0] === '-') {
start++;
this.negative = 1;
}
if (start < number.length) {
if (base === 16) {
this._parseHex(number, start, endian);
} else {
this._parseBase(number, base, start);
if (endian === 'le') {
this._initArray(this.toArray(), base, endian);
}
}
}
};
BN.prototype._initNumber = function _initNumber (number, base, endian) {
if (number < 0) {
this.negative = 1;
number = -number;
}
if (number < 0x4000000) {
this.words = [number & 0x3ffffff];
this.length = 1;
} else if (number < 0x10000000000000) {
this.words = [
number & 0x3ffffff,
(number / 0x4000000) & 0x3ffffff
];
this.length = 2;
} else {
assert(number < 0x20000000000000); // 2 ^ 53 (unsafe)
this.words = [
number & 0x3ffffff,
(number / 0x4000000) & 0x3ffffff,
1
];
this.length = 3;
}
if (endian !== 'le') return;
// Reverse the bytes
this._initArray(this.toArray(), base, endian);
};
BN.prototype._initArray = function _initArray (number, base, endian) {
// Perhaps a Uint8Array
assert(typeof number.length === 'number');
if (number.length <= 0) {
this.words = [0];
this.length = 1;
return this;
}
this.length = Math.ceil(number.length / 3);
this.words = new Array(this.length);
for (var i = 0; i < this.length; i++) {
this.words[i] = 0;
}
var j, w;
var off = 0;
if (endian === 'be') {
for (i = number.length - 1, j = 0; i >= 0; i -= 3) {
w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16);
this.words[j] |= (w << off) & 0x3ffffff;
this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;
off += 24;
if (off >= 26) {
off -= 26;
j++;
}
}
} else if (endian === 'le') {
for (i = 0, j = 0; i < number.length; i += 3) {
w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16);
this.words[j] |= (w << off) & 0x3ffffff;
this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;
off += 24;
if (off >= 26) {
off -= 26;
j++;
}
}
}
return this._strip();
};
function parseHex4Bits (string, index) {
var c = string.charCodeAt(index);
// '0' - '9'
if (c >= 48 && c <= 57) {
return c - 48;
// 'A' - 'F'
} else if (c >= 65 && c <= 70) {
return c - 55;
// 'a' - 'f'
} else if (c >= 97 && c <= 102) {
return c - 87;
} else {
assert(false, 'Invalid character in ' + string);
}
}
function parseHexByte (string, lowerBound, index) {
var r = parseHex4Bits(string, index);
if (index - 1 >= lowerBound) {
r |= parseHex4Bits(string, index - 1) << 4;
}
return r;
}
BN.prototype._parseHex = function _parseHex (number, start, endian) {
// Create possibly bigger array to ensure that it fits the number
this.length = Math.ceil((number.length - start) / 6);
this.words = new Array(this.length);
for (var i = 0; i < this.length; i++) {
this.words[i] = 0;
}
// 24-bits chunks
var off = 0;
var j = 0;
var w;
if (endian === 'be') {
for (i = number.length - 1; i >= start; i -= 2) {
w = parseHexByte(number, start, i) << off;
this.words[j] |= w & 0x3ffffff;
if (off >= 18) {
off -= 18;
j += 1;
this.words[j] |= w >>> 26;
} else {
off += 8;
}
}
} else {
var parseLength = number.length - start;
for (i = parseLength % 2 === 0 ? start + 1 : start; i < number.length; i += 2) {
w = parseHexByte(number, start, i) << off;
this.words[j] |= w & 0x3ffffff;
if (off >= 18) {
off -= 18;
j += 1;
this.words[j] |= w >>> 26;
} else {
off += 8;
}
}
}
this._strip();
};
function parseBase (str, start, end, mul) {
var r = 0;
var b = 0;
var len = Math.min(str.length, end);
for (var i = start; i < len; i++) {
var c = str.charCodeAt(i) - 48;
r *= mul;
// 'a'
if (c >= 49) {
b = c - 49 + 0xa;
// 'A'
} else if (c >= 17) {
b = c - 17 + 0xa;
// '0' - '9'
} else {
b = c;
}
assert(c >= 0 && b < mul, 'Invalid character');
r += b;
}
return r;
}
BN.prototype._parseBase = function _parseBase (number, base, start) {
// Initialize as zero
this.words = [0];
this.length = 1;
// Find length of limb in base
for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) {
limbLen++;
}
limbLen--;
limbPow = (limbPow / base) | 0;
var total = number.length - start;
var mod = total % limbLen;
var end = Math.min(total, total - mod) + start;
var word = 0;
for (var i = start; i < end; i += limbLen) {
word = parseBase(number, i, i + limbLen, base);
this.imuln(limbPow);
if (this.words[0] + word < 0x4000000) {
this.words[0] += word;
} else {
this._iaddn(word);
}
}
if (mod !== 0) {
var pow = 1;
word = parseBase(number, i, number.length, base);
for (i = 0; i < mod; i++) {
pow *= base;
}
this.imuln(pow);
if (this.words[0] + word < 0x4000000) {
this.words[0] += word;
} else {
this._iaddn(word);
}
}
this._strip();
};
BN.prototype.copy = function copy (dest) {
dest.words = new Array(this.length);
for (var i = 0; i < this.length; i++) {
dest.words[i] = this.words[i];
}
dest.length = this.length;
dest.negative = this.negative;
dest.red = this.red;
};
function move (dest, src) {
dest.words = src.words;
dest.length = src.length;
dest.negative = src.negative;
dest.red = src.red;
}
BN.prototype._move = function _move (dest) {
move(dest, this);
};
BN.prototype.clone = function clone () {
var r = new BN(null);
this.copy(r);
return r;
};
BN.prototype._expand = function _expand (size) {
while (this.length < size) {
this.words[this.length++] = 0;
}
return this;
};
// Remove leading `0` from `this`
BN.prototype._strip = function strip () {
while (this.length > 1 && this.words[this.length - 1] === 0) {
this.length--;
}
return this._normSign();
};
BN.prototype._normSign = function _normSign () {
// -0 = 0
if (this.length === 1 && this.words[0] === 0) {
this.negative = 0;
}
return this;
};
// Check Symbol.for because not everywhere where Symbol defined
// See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol#Browser_compatibility
if (typeof Symbol !== 'undefined' && typeof Symbol.for === 'function') {
try {
BN.prototype[Symbol.for('nodejs.util.inspect.custom')] = inspect;
} catch (e) {
BN.prototype.inspect = inspect;
}
} else {
BN.prototype.inspect = inspect;
}
function inspect () {
return (this.red ? '<BN-R: ' : '<BN: ') + this.toString(16) + '>';
}
/*
var zeros = [];
var groupSizes = [];
var groupBases = [];
var s = '';
var i = -1;
while (++i < BN.wordSize) {
zeros[i] = s;
s += '0';
}
groupSizes[0] = 0;
groupSizes[1] = 0;
groupBases[0] = 0;
groupBases[1] = 0;
var base = 2 - 1;
while (++base < 36 + 1) {
var groupSize = 0;
var groupBase = 1;
while (groupBase < (1 << BN.wordSize) / base) {
groupBase *= base;
groupSize += 1;
}
groupSizes[base] = groupSize;
groupBases[base] = groupBase;
}
*/
var zeros = [
'',
'0',
'00',
'000',
'0000',
'00000',
'000000',
'0000000',
'00000000',
'000000000',
'0000000000',
'00000000000',
'000000000000',
'0000000000000',
'00000000000000',
'000000000000000',
'0000000000000000',
'00000000000000000',
'000000000000000000',
'0000000000000000000',
'00000000000000000000',
'000000000000000000000',
'0000000000000000000000',
'0000000