Why Passwhere?
HOW IT WORKS
It is simple, when users select location(s) on planet Earth the geographical characteristics of these selected places will be extracted and concatenated with account password settings and used as an input to the keyed-hash message authentication code (HMAC) function where the key is the user's unique personal key, which is a 256-bit randomly generated hexadecimal number. Read Geographical Passwords paper for more.
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