minigame-std/src/std/crypto/hmac/web_hmac.ts

Mini Game Standard Development Library.

import { hexFromBuffer, textEncode } from '../../codec/mod.ts';
import type { DataSource } from '../../defines.ts';
import type { SHA } from '../crypto_defines.ts';

export async function createHMAC(hash: SHA, key: DataSource, data: DataSource): Promise<string> {
    const encodedKey = typeof key === 'string'
        ? textEncode(key)
        : key;

    const encodedData = typeof data === 'string'
            ? textEncode(data)
            : data;

    // 导入密钥
    const cryptoKey = await crypto.subtle.importKey(
        'raw', // 密钥格式
        encodedKey, // 密钥数据
        { name: 'HMAC', hash: { name: hash } }, // 算法
        false, // 是否可导出
        ['sign'] // 用途
    );

    // 生成 HMAC
    const hashBuffer = await crypto.subtle.sign(
        'HMAC', // 算法
        cryptoKey, // 密钥
        encodedData // 消息
    );

    return hexFromBuffer(hashBuffer);
}