Salts

Salts are small strings of random characters appended onto the end of strings. In the context of Geometry Dash, salts are used within request validation to make it a bit more difficult for a 3rd parties to interact with the private API

List of known Salts

Salt	Usage
xI25fpAapCQg	Level Upload Seed
xPT6iUrtws0J	Comment Chk
ysg6pUrtjn0J	Like and Rate Chk
xI35fsAapCRg	Update Profile Chk
yPg6pUrtWn0J	Level Leaderboard Chk
ask2fpcaqCQ2	Vault of Secrets & Chamber of Time Codes
oC36fpYaPtdg	getGJChallenges hash
pC26fpYaQCtg	getGJRewards hash
mI29fmAnxgTs	GJP2

How Salts are used

Salts are appended onto the end of a string of data. What happens to the salted string depends on what its used for.

Below is an example of a salt being implemented within Vault Codes

function generate_vault_code(str /*brainpower*/)
{
    const SALT = "ask2fpcaqCQ2";
    const URL_SAFE  = true;

    let raw_str = str + SALT; // "brainpowerask2fpcaqCQ2"
    let xor_str = xor_cycle_cipher(raw_str, "19283");

    return base64_encode(xor_str, URL_SAFE).toString();
}