@homebridge/camera-utils/dist/srtp.js

Utilities to simplify homebridge camera plugin development

import { Buffer } from 'node:buffer';
import { randomBytes } from 'node:crypto';
export function encodeSrtpOptions({ srtpKey, srtpSalt }) {
    return Buffer.concat([srtpKey, srtpSalt]).toString('base64');
}
export function decodeSrtpOptions(encodedOptions) {
    const crypto = Buffer.from(encodedOptions, 'base64');
    return {
        srtpKey: crypto.slice(0, 16),
        srtpSalt: crypto.slice(16, 30),
    };
}
export function createCryptoLine(srtpOptions) {
    const encodedOptions = encodeSrtpOptions(srtpOptions);
    return `a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:${encodedOptions}`;
}
export function generateSrtpOptions() {
    return {
        srtpKey: randomBytes(16),
        srtpSalt: randomBytes(14),
    };
}
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