dressed/dist/server/signature.js

A sleek, serverless-ready Discord bot framework.

import { botEnv } from "../utils/env.js";
function hex2bin(hex) {
    const buf = new Uint8Array(Math.ceil(hex.length / 2));
    for (let i = 0; i < buf.length; ++i) {
        buf[i] = parseInt(hex.substring(i * 2, i * 2 + 2), 16);
    }
    return buf;
}
/**
 * Verifies the signature of the POST request
 */
export async function verifySignature(body, signature, timestamp) {
    return crypto.subtle.verify({ name: "Ed25519" }, await crypto.subtle.importKey("raw", hex2bin(botEnv.DISCORD_PUBLIC_KEY), "Ed25519", false, ["verify"]), hex2bin(signature), new TextEncoder().encode(timestamp + body));
}
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