Text-based passwords are used everywhere nowadays, but what if we could use a real-world location as a password instead? This app simulates the experience of burying a treasure underground. Accessing the hidden data can only be done by knowing its location and having a special private key which is stored on the treasure owner's device 🌎🔑

• Each user is assigned a public and private key upon account creation
• The private key is stored on the user's Keychain and is synced via iCloud
• User's account credentials are hashed with SHA
• A user can encrypt a piece of text
• The text is encrypted with AES and the AES key is encrypted with RSA (user's public key)
• The user's current location is saved along with the encrypted data and encrypted AES key
• To retrieve the text, the user must be in the same location and use the same device (or be logged into the same iCloud account) as when the encryption happened
• Encrypted data can be shared with others
• Sharing allows another user to access the data (only if they know the location)

• Swift & UIKit
• MVC pattern
• CocoaPods
• Firebase Realtime Database
• JSON
• CoreLocation
• CryptoKit
• Apple Keychain
• RSA, AES & SHA algorithms