@hsui/sdk
Version:
Hundsun frontend framework JSSDK
321 lines (287 loc) • 10.4 kB
JavaScript
import _toConsumableArray from "@babel/runtime/helpers/esm/toConsumableArray";
import { toByteArray, fromByteArray } from 'base64-js';
var DECRYPT = 0;
var CBC = 0;
var ROUND = 32;
var BLOCK = 16;
var Sbox = [0xd6, 0x90, 0xe9, 0xfe, 0xcc, 0xe1, 0x3d, 0xb7, 0x16, 0xb6, 0x14, 0xc2, 0x28, 0xfb, 0x2c, 0x05, 0x2b, 0x67, 0x9a, 0x76, 0x2a, 0xbe, 0x04, 0xc3, 0xaa, 0x44, 0x13, 0x26, 0x49, 0x86, 0x06, 0x99, 0x9c, 0x42, 0x50, 0xf4, 0x91, 0xef, 0x98, 0x7a, 0x33, 0x54, 0x0b, 0x43, 0xed, 0xcf, 0xac, 0x62, 0xe4, 0xb3, 0x1c, 0xa9, 0xc9, 0x08, 0xe8, 0x95, 0x80, 0xdf, 0x94, 0xfa, 0x75, 0x8f, 0x3f, 0xa6, 0x47, 0x07, 0xa7, 0xfc, 0xf3, 0x73, 0x17, 0xba, 0x83, 0x59, 0x3c, 0x19, 0xe6, 0x85, 0x4f, 0xa8, 0x68, 0x6b, 0x81, 0xb2, 0x71, 0x64, 0xda, 0x8b, 0xf8, 0xeb, 0x0f, 0x4b, 0x70, 0x56, 0x9d, 0x35, 0x1e, 0x24, 0x0e, 0x5e, 0x63, 0x58, 0xd1, 0xa2, 0x25, 0x22, 0x7c, 0x3b, 0x01, 0x21, 0x78, 0x87, 0xd4, 0x00, 0x46, 0x57, 0x9f, 0xd3, 0x27, 0x52, 0x4c, 0x36, 0x02, 0xe7, 0xa0, 0xc4, 0xc8, 0x9e, 0xea, 0xbf, 0x8a, 0xd2, 0x40, 0xc7, 0x38, 0xb5, 0xa3, 0xf7, 0xf2, 0xce, 0xf9, 0x61, 0x15, 0xa1, 0xe0, 0xae, 0x5d, 0xa4, 0x9b, 0x34, 0x1a, 0x55, 0xad, 0x93, 0x32, 0x30, 0xf5, 0x8c, 0xb1, 0xe3, 0x1d, 0xf6, 0xe2, 0x2e, 0x82, 0x66, 0xca, 0x60, 0xc0, 0x29, 0x23, 0xab, 0x0d, 0x53, 0x4e, 0x6f, 0xd5, 0xdb, 0x37, 0x45, 0xde, 0xfd, 0x8e, 0x2f, 0x03, 0xff, 0x6a, 0x72, 0x6d, 0x6c, 0x5b, 0x51, 0x8d, 0x1b, 0xaf, 0x92, 0xbb, 0xdd, 0xbc, 0x7f, 0x11, 0xd9, 0x5c, 0x41, 0x1f, 0x10, 0x5a, 0xd8, 0x0a, 0xc1, 0x31, 0x88, 0xa5, 0xcd, 0x7b, 0xbd, 0x2d, 0x74, 0xd0, 0x12, 0xb8, 0xe5, 0xb4, 0xb0, 0x89, 0x69, 0x97, 0x4a, 0x0c, 0x96, 0x77, 0x7e, 0x65, 0xb9, 0xf1, 0x09, 0xc5, 0x6e, 0xc6, 0x84, 0x18, 0xf0, 0x7d, 0xec, 0x3a, 0xdc, 0x4d, 0x20, 0x79, 0xee, 0x5f, 0x3e, 0xd7, 0xcb, 0x39, 0x48];
var CK = [0x00070e15, 0x1c232a31, 0x383f464d, 0x545b6269, 0x70777e85, 0x8c939aa1, 0xa8afb6bd, 0xc4cbd2d9, 0xe0e7eef5, 0xfc030a11, 0x181f262d, 0x343b4249, 0x50575e65, 0x6c737a81, 0x888f969d, 0xa4abb2b9, 0xc0c7ced5, 0xdce3eaf1, 0xf8ff060d, 0x141b2229, 0x30373e45, 0x4c535a61, 0x686f767d, 0x848b9299, 0xa0a7aeb5, 0xbcc3cad1, 0xd8dfe6ed, 0xf4fb0209, 0x10171e25, 0x2c333a41, 0x484f565d, 0x646b7279];
/**
* 16 进制串转字节数组
*/
function hexToArray(str) {
var arr = [];
for (var i = 0, len = str.length; i < len; i += 2) {
arr.push(parseInt(str.substr(i, 2), 16));
}
return arr;
}
/**
* 字节数组转 16 进制串
*/
function ArrayToHex(arr) {
return arr.map(function (item) {
item = item.toString(16);
return item.length === 1 ? '0' + item : item;
}).join('');
}
/**
* base64 转字节数组
*/
function base64ToArray(str) {
return toByteArray(str);
}
/**
* 字节数组转 base64
*/
function arrayToBase64(arr) {
return fromByteArray(arr);
}
/**
* utf8 串转字节数组
*/
function utf8ToArray(str) {
var arr = [];
for (var i = 0, len = str.length; i < len; i++) {
var point = str.charCodeAt(i);
if (point <= 0x007f) {
// 单子节，标量值：00000000 00000000 0zzzzzzz
arr.push(point);
} else if (point <= 0x07ff) {
// 双字节，标量值：00000000 00000yyy yyzzzzzz
arr.push(0xc0 | point >>> 6); // 110yyyyy（0xc0-0xdf）
arr.push(0x80 | point & 0x3f); // 10zzzzzz（0x80-0xbf）
} else {
// 三字节：标量值：00000000 xxxxyyyy yyzzzzzz
arr.push(0xe0 | point >>> 12); // 1110xxxx（0xe0-0xef）
arr.push(0x80 | point >>> 6 & 0x3f); // 10yyyyyy（0x80-0xbf）
arr.push(0x80 | point & 0x3f); // 10zzzzzz（0x80-0xbf）
}
}
return arr;
}
/**
* 字节数组转 utf8 串
*/
function arrayToUtf8(arr) {
var str = [];
for (var i = 0, len = arr.length; i < len; i++) {
if (arr[i] >= 0xe0 && arr[i] <= 0xef) {
// 三字节
str.push(String.fromCharCode(((arr[i] & 0x0f) << 12) + ((arr[i + 1] & 0x3f) << 6) + (arr[i + 2] & 0x3f)));
i += 2;
} else if (arr[i] >= 0xc0 && arr[i] <= 0xdf) {
// 双字节
str.push(String.fromCharCode(((arr[i] & 0x1f) << 6) + (arr[i + 1] & 0x3f)));
i++;
} else {
// 单字节
str.push(String.fromCharCode(arr[i]));
}
}
return str.join('');
}
/**
* utf8 串转16位字节数组
*/
function srtToBytes(str) {
var arr = utf8ToArray(str); // 0x00
if (arr.length < 16) {
var paddingCount = 16 - arr.length;
for (var i = 0; i < paddingCount; i++) arr.push(0x00);
} else {
arr = arr.slice(0, 16);
}
return arr;
}
/**
* 32 比特循环左移
*/
function rotl(x, y) {
return x << y | x >>> 32 - y;
}
/**
* 非线性变换
*/
function byteSub(a) {
return (Sbox[a >>> 24 & 0xff] & 0xff) << 24 | (Sbox[a >>> 16 & 0xff] & 0xff) << 16 | (Sbox[a >>> 8 & 0xff] & 0xff) << 8 | Sbox[a & 0xff] & 0xff;
}
/**
* 线性变换，加密/解密用
*/
function l1(b) {
return b ^ rotl(b, 2) ^ rotl(b, 10) ^ rotl(b, 18) ^ rotl(b, 24);
}
/**
* 线性变换，生成轮密钥用
*/
function l2(b) {
return b ^ rotl(b, 13) ^ rotl(b, 23);
}
/**
* 以一组 128 比特进行加密/解密操作
*/
function sms4Crypt(input, output, roundKey) {
var x = new Array(4);
// 字节数组转成字数组（此处 1 字 = 32 比特）
var tmp = new Array(4);
for (var i = 0; i < 4; i++) {
tmp[0] = input[0 + 4 * i] & 0xff;
tmp[1] = input[1 + 4 * i] & 0xff;
tmp[2] = input[2 + 4 * i] & 0xff;
tmp[3] = input[3 + 4 * i] & 0xff;
x[i] = tmp[0] << 24 | tmp[1] << 16 | tmp[2] << 8 | tmp[3];
}
// x[i + 4] = x[i] ^ l1(byteSub(x[i + 1] ^ x[i + 2] ^ x[i + 3] ^ roundKey[i]))
for (var r = 0, mid; r < 32; r += 4) {
mid = x[1] ^ x[2] ^ x[3] ^ roundKey[r + 0];
x[0] ^= l1(byteSub(mid)); // x[4]
mid = x[2] ^ x[3] ^ x[0] ^ roundKey[r + 1];
x[1] ^= l1(byteSub(mid)); // x[5]
mid = x[3] ^ x[0] ^ x[1] ^ roundKey[r + 2];
x[2] ^= l1(byteSub(mid)); // x[6]
mid = x[0] ^ x[1] ^ x[2] ^ roundKey[r + 3];
x[3] ^= l1(byteSub(mid)); // x[7]
}
// 反序变换
for (var j = 0; j < 16; j += 4) {
output[j] = x[3 - j / 4] >>> 24 & 0xff;
output[j + 1] = x[3 - j / 4] >>> 16 & 0xff;
output[j + 2] = x[3 - j / 4] >>> 8 & 0xff;
output[j + 3] = x[3 - j / 4] & 0xff;
}
}
/**
* 密钥扩展算法
*/
function sms4KeyExt(key, roundKey, cryptFlag) {
var x = new Array(4);
// 字节数组转成字数组（此处 1 字 = 32 比特）
var tmp = new Array(4);
for (var i = 0; i < 4; i++) {
tmp[0] = key[0 + 4 * i] & 0xff;
tmp[1] = key[1 + 4 * i] & 0xff;
tmp[2] = key[2 + 4 * i] & 0xff;
tmp[3] = key[3 + 4 * i] & 0xff;
x[i] = tmp[0] << 24 | tmp[1] << 16 | tmp[2] << 8 | tmp[3];
}
// 与系统参数做异或
x[0] ^= 0xa3b1bac6;
x[1] ^= 0x56aa3350;
x[2] ^= 0x677d9197;
x[3] ^= 0xb27022dc;
// roundKey[i] = x[i + 4] = x[i] ^ l2(byteSub(x[i + 1] ^ x[i + 2] ^ x[i + 3] ^ CK[i]))
for (var r = 0, mid; r < 32; r += 4) {
mid = x[1] ^ x[2] ^ x[3] ^ CK[r + 0];
roundKey[r + 0] = x[0] ^= l2(byteSub(mid)); // x[4]
mid = x[2] ^ x[3] ^ x[0] ^ CK[r + 1];
roundKey[r + 1] = x[1] ^= l2(byteSub(mid)); // x[5]
mid = x[3] ^ x[0] ^ x[1] ^ CK[r + 2];
roundKey[r + 2] = x[2] ^= l2(byteSub(mid)); // x[6]
mid = x[0] ^ x[1] ^ x[2] ^ CK[r + 3];
roundKey[r + 3] = x[3] ^= l2(byteSub(mid)); // x[7]
}
// 解密时使用反序的轮密钥
if (cryptFlag === DECRYPT) {
for (var _r = 0, _mid; _r < 16; _r++) {
_mid = roundKey[_r];
roundKey[_r] = roundKey[31 - _r];
roundKey[31 - _r] = _mid;
}
}
}
/**
* 加密：参数-明文和key转为数组-明文补充
* @param {*} inArray
* @param {*} key
* @param {*} cryptFlag
* @param {*} param3
* @param {*} base64
*/
function sm4(inArray, key, cryptFlag) {
var _ref = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {},
_ref$padding = _ref.padding,
padding = _ref$padding === void 0 ? 'pkcs#5' : _ref$padding,
mode = _ref.mode,
_ref$output = _ref.output,
output = _ref$output === void 0 ? 'string' : _ref$output;
var base64 = arguments.length > 4 ? arguments[4] : undefined;
if (mode === CBC) {
// @TODO，CBC 模式，默认走 ECB 模式
}
// 检查 key
if (typeof key === 'string') key = srtToBytes(key);
if (key.length !== 128 / 8) {
// key 不是 128 bytes
throw new Error('key should be a 16 bytes string');
}
// 检查输入
if (typeof inArray === 'string') {
if (cryptFlag !== DECRYPT) {
// 加密，输入为 utf8 串
inArray = utf8ToArray(inArray);
} else if (base64 === 1) {
// 解密，输入为 16 进制串
inArray = base64ToArray(inArray);
} else {
inArray = hexToArray(inArray);
}
} else {
inArray = _toConsumableArray(inArray);
}
// 新增填充
if (padding === 'pkcs#5' && cryptFlag !== DECRYPT) {
var paddingCount = BLOCK - inArray.length % BLOCK;
for (var i = 0; i < paddingCount; i++) inArray.push(paddingCount);
}
// 生成轮密钥
var roundKey = new Array(ROUND);
sms4KeyExt(key, roundKey, cryptFlag);
var outArray = [];
var restLen = inArray.length;
var point = 0;
while (restLen >= BLOCK) {
var input = inArray.slice(point, point + 16);
var _output = new Array(16);
sms4Crypt(input, _output, roundKey);
for (var _i = 0; _i < BLOCK; _i++) {
outArray[point + _i] = _output[_i];
}
restLen -= BLOCK;
point += BLOCK;
}
// 去除填充
if (padding === 'pkcs#5' && cryptFlag === DECRYPT) {
var _paddingCount = outArray[outArray.length - 1];
outArray.splice(outArray.length - _paddingCount, _paddingCount);
}
// 调整输出
if (output !== 'array') {
if (cryptFlag !== DECRYPT) {
// 加密
if (base64 === 1) {
return arrayToBase64(outArray);
} else {
// 输出转 16 进制串
return ArrayToHex(outArray);
}
} else {
// 解密，输出转 utf8 串
return arrayToUtf8(outArray);
}
} else {
return outArray;
}
}
export var encrypt = function encrypt(inArray, key, options) {
return sm4(inArray, key, 1, options);
};
export var decrypt = function decrypt(inArray, key, options) {
return sm4(inArray, key, 0, options);
};
export var encryptBase64 = function encryptBase64(inArray, key, options) {
return sm4(inArray, key, 1, options, 1);
};
export var decryptBase64 = function decryptBase64(inArray, key, options) {
return sm4(inArray, key, 0, options, 1);
};