Passwords
Computer Science: OCR GCSE, topic 1.4.17
Passwords
Passwords are one method of providing authentication.
Purpose of passwords
- Passwords help to prevent unauthorised users from accessing a device or network.
- Passwords are one of the simplest authentication methods.
Issues with passwords
- Passwords are only effective if:
- They remain secret.
- The password is strong against brute force attacks.
- Stronger authentication systems can be created by implementing features such as two-factor authentication.
Principles of a strong password
- A strong password should:
- Be long.
- Use letters, numbers, and symbols.
- Be changed regularly.
- Never be written down.
Test yourself on Passwords
How can stronger authentication systems be developed?