activityworkshop
commented
2 years ago When you enter your username and password, it saves this information in the settings, but it doesn't send anything to Nasa. It doesn't login, so it doesn't check whether the password is valid or not. The username and password are used when you request SRTM tiles.
If you already have the required tiles in your cache, then it won't need to contact the server so it doesn't matter whether the password is correct or not, you already have the data you need.
If 1-second data isn't available, or if your password is incorrect, it will fall back to 3-second data, and again will use data from your cache if it can.
When receiving online heights (1 second, NASA account), the login / password form accepts any random data and saves (does not display that there is no error). A check mark is placed that the user is logged into his account and when trying to load the heights, they are loaded explicitly without using the account (nasa / 1 second), but misleading the user.
In addition, I have a real NASA account, when I enter its data, I still get online heights from 20 years ago (3 seconds instead of 1 second).