更新 'test.js'

master
src48597962 2 years ago
parent 707b8d5c67
commit b7323a5035
  1. 142
      test.js

@ -1,119 +1,41 @@
eval(getCryptoJS());
// 定义 secp256k1 椭圆曲线参数
const p = BigInt('0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f');
const a = BigInt(0);
const b = BigInt(7);
const Gx = BigInt('0x79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798');
const Gy = BigInt('0x483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8');
const n = BigInt('0xfffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141');
const h = BigInt(1);
// 定义点类
function Point(x, y) {
this.x = x;
this.y = y;
// 生成随机私钥
let privateKey = generateRandomPrivateKey();
// 根据私钥生成公钥
let publicKey = generatePublicKey(privateKey);
// 生成消息
let message = generateMessage(appId, deviceId, userId, nonce);
// 计算消息哈希
let messageHash = sha256(message);
// 对哈希值进行签名
let signature = sign(privateKey, messageHash);
// 将签名和公钥一起发送给服务器
sendToServer(signature, publicKey);
function generateRandomPrivateKey() {
// 生成32字节随机数作为私钥
return crypto.randomBytes(32);
}
Point.prototype.add = function(other) {
if (this.equals(other)) {
return this.double();
} else if (this.isInfinity()) {
return other;
} else if (other.isInfinity()) {
return this;
}
const m = (other.y - this.y) * modInv(other.x - this.x, p);
const x = (m ** 2n - this.x - other.x).mod(p);
const y = (m * (this.x - x) - this.y).mod(p);
return new Point(x, y);
};
Point.prototype.double = function() {
if (this.isInfinity()) {
return this;
}
const m = (3n * this.x ** 2n + a) * modInv(2n * this.y, p);
const x = (m ** 2n - 2n * this.x).mod(p);
const y = (m * (this.x - x) - this.y).mod(p);
return new Point(x, y);
};
Point.prototype.mul = function(scalar) {
if (this.isInfinity() || scalar == 0n) {
return Point.infinity();
}
let result = Point.infinity();
let base = this;
while (scalar > 0n) {
if (scalar & 1n) {
result = result.add(base);
}
base = base.double();
scalar >>= 1n;
}
return result;
};
Point.prototype.isInfinity = function() {
return this.x === null && this.y === null;
};
Point.prototype.equals = function(other) {
return this.x === other.x && this.y === other.y;
};
Point.prototype.toString = function() {
if (this.isInfinity()) {
return 'Infinity';
}
return `(${this.x}, ${this.y})`;
};
Point.fromHex = function(hex) {
if (hex === '00') {
return Point.infinity();
}
const x = BigInt(`0x${hex.substr(0, 64)}`);
const y = BigInt(`0x${hex.substr(64)}`);
return new Point(x, y);
};
Point.prototype.toHex = function() {
if (this.isInfinity()) {
return '00';
}
return padHex(this.x.toString(16), 64) + padHex(this.y.toString(16), 64);
};
Point.infinity = function() {
return new Point(null, null);
};
// 计算模逆元
function modInv(a, m) {
let [x, y] = [0n, 1n];
let [lastX, lastY] = [1n, 0n];
let [mod, quotient] = [m, null];
while (mod > 0n) {
[quotient, a, mod] = [a / mod, mod, a %!m(MISSING)];
[x, lastX] = [lastX - quotient * x, x];
[y, lastY] = [lastY - quotient * y, y];
}
return lastX < 0n ? lastX + m : lastX;
function generatePublicKey(privateKey) {
// 根据私钥生成公钥
let publicKey = secp256k1.publicKeyCreate(privateKey, false);
return publicKey;
}
// 填充十六进制字符串
function padHex(str, len) {
while (str.length < len) {
str = '0' + str;
}
return str;
function generateMessage(appId, deviceId, userId, nonce) {
// 拼接消息
return `${appId}:${deviceId}:${userId}:${nonce}`;
}
// 生成密钥对
const privateKey = BigInt(getRandomBytes(32));
const publicKey = Point.fromHex(`${Gx.toString(16)}${Gy.toString(16)}`).mul(privateKey);
function sha256(str) {
const hash = CryptoJS.SHA256(str);
return hash.toString(CryptoJS.enc.Hex);
function sha256(data) {
// 计算SHA256哈希值
return crypto.createHash('sha256').update(data).digest();
}
function getRandomBytes(len) {
const arr = new Uint8Array(len);
CryptoJS.lib.WordArray.random(len).toArray().forEach((val, idx) => arr[idx] = val);
return Array.from(arr, (dec) => ('0' + dec.toString(16)).substr(-2)).join('');
function sign(privateKey, messageHash) {
// 使用私钥对消息哈希值进行签名
let signature = secp256k1.sign(messageHash, privateKey);
return signature;
}
function toHex(buf) {
return Array.prototype.map.call(buf, x => ('00' + x.toString(16)).slice(-2)).join('');
}
function fromHex(hex) {
return new Uint8Array(hex.match(/.{1,2}/g).map(byte => parseInt(byte, 16)));
function sendToServer(signature, publicKey) {
// 将签名和公钥发送给服务器
// ...
}
toast('加载完')

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