It is a bank account security system.
Basically, the remittance provided by the bank account, balance check, etc.
Like a security system, it's about your personal information.
Accounts are managed encrypted.
7 Segment - Show the account password you enter
Dip Switch - Use as a second security device when entering an account password
Boozer - Boozer sounds when entering wrong account passwords five times in a row
Text LCD - Display current account balance, account number
Touch LCD - UI Interface 구현
Save the user's name and password as a structure when creating the first account.
At this point, the password is provided using /dev/random, which is provided by the UNIX system itself.
After generating with random numbers, we use RSA algorithms to generate public keys and secret keys and store them encrypted.
You can use the account number only when the Dip Switch status matches the Binary Code.
Check each transaction.
Remittance: Account password and OTP authentication required.
Inquiry into transaction details: Request account password
Balance check: Account password required
Management of all personal information, account number, password, balance, and transaction details of the account holder in an encrypted state
Manage data by leveraging tree structures
Management of details, such as types of transactions (deposits, withdrawals), transaction time, transaction amount, etc. as a structure
Manage data by leveraging tree structures
