CipherNote is a secure notes manager for Android.
- Password‑protected notes: Users provide a password; the app derives a key using MD5 and encrypts note content with the TEA algorithm.
- Create, edit, delete notes: Full CRUD operations on notes stored in an SQLite database.
- Encrypted storage: All note contents are saved encrypted; decryption occurs only after correct password entry.
- Automatic timestamping: Notes record creation and modification timestamps.
- Notes list & sorting: Notes are displayed in a list and can be sorted by modification date.
- Secure note opening: Wrong password triggers an error dialog; correct password reveals decrypted content.
- UI flow: Initial screen → notes list → edit screen, with smooth Compose animations.