@zlattice/lattice-js/dist/cjs/crypto/sm3/index.js

Lattice blockchain TypeScript SDK with dual module support (CJS + ESM)

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.utf8ToArray = utf8ToArray;
exports.sm3 = sm3;
const hmac_1 = require("../../crypto/sm2/hmac.js");
const sm3_1 = require("../../crypto/sm2/sm3.js");
const utils_1 = require("../../crypto/sm2/utils.js");
const utils_2 = require("../../crypto/sm3/utils.js");
/**
 * 补全16进制字符串
 */
// function leftPad(input, num) {
//   if (input.length >= num) return input
//   return (new Array(num - input.length + 1)).join('0') + input
// }
/**
 * utf8 串转字节数组
 */
function utf8ToArray(str) {
    const arr = [];
    for (let i = 0, len = str.length; i < len; i++) {
        const point = str.codePointAt(i);
        if (!point)
            throw new Error('invalid input');
        if (point <= 0x007f) {
            // 单字节，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 if (point <= 0xD7FF || (point >= 0xE000 && point <= 0xFFFF)) {
            // 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）
        }
        else if (point >= 0x010000 && point <= 0x10FFFF) {
            // 四字节：标量值：000wwwxx xxxxyyyy yyzzzzzz
            i++;
            arr.push((0xf0 | (point >>> 18) & 0x1c)); // 11110www（0xf0-0xf7）
            arr.push((0x80 | ((point >>> 12) & 0x3f))); // 10xxxxxx（0x80-0xbf）
            arr.push((0x80 | ((point >>> 6) & 0x3f))); // 10yyyyyy（0x80-0xbf）
            arr.push((0x80 | (point & 0x3f))); // 10zzzzzz（0x80-0xbf）
        }
        else {
            // 五、六字节，暂时不支持
            arr.push(point);
            throw new Error('input is not supported');
        }
    }
    return new Uint8Array(arr);
}
function sm3(input, options) {
    input = typeof input === 'string' ? utf8ToArray(input) : input;
    if (options) {
        const mode = options.mode || 'hmac';
        if (mode !== 'hmac')
            throw new Error('invalid mode');
        let key = options.key;
        if (!key)
            throw new Error('invalid key');
        key = typeof key === 'string' ? (0, utils_1.hexToArray)(key) : key;
        return (0, utils_2.bytesToHex)((0, hmac_1.hmac)(sm3_1.sm3, key, input));
    }
    return (0, utils_2.bytesToHex)((0, sm3_1.sm3)(input));
}
exports.default = sm3;
//# sourceMappingURL=index.js.map