Password C Program

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Cheryll Witting

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Aug 5, 2024, 3:43:33 AM8/5/24

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Hiall,

I am building a project where I am using a keypad and LCD with a password. I want a red LED to be on to signify a door being closed and for a green LED to turn on and the red LED to turn off when the correct password is entered to signify the door open. Thr red LED is connected to 12 and the green LED is coonected to 11 of the arduino. Here is the code I am using so far. The LCD, keypad and password part of the code is working. I just cant figure out how to get the LEDs sorted. Any help would be much appreciated. Thank you.

Put the pinMode() commands in setup() where the other one is and remove the existing one unless you are planning on using the LED connected to pin 13. The digitalWrite() command look like they are in the right place but I have not looked in detail.

Do yourself a favour and give the red and green LEDs names like the ledpin one just before setup, then you can use pinMode like this

pinMode(redLedPin, OUTPUT); and digitalWrite like thisdigitalWrite(redLedPin, HIGH);this makes it more obvious what is going on.

Hello Gents,

I want to make a project using LCD 16x2 , 4x4 keypad with 2 outputs. I need 4 or 5 digit password with 2 options. if after password press A on keypad, output A go high, if press B output B go high. To make them low again enter password and press D key.

Can you please advise me the code. As I tried many here but not achieving success. my little knowledge!!! THANKS IN ADVANCE.

asimzafar:

Hello Gents,

Can you please advise me the code. As I tried many here but not achieving success. my little knowledge!!! THANKS IN ADVANCE.

After signing up for a password manager, you'll be prompted to create a master password. Your master password should be a strong password or passphrase that you can remember but haven't used for any other logins. The master password is the one password you need to access your password manager vault. The next step is to download the app or browser extension to the devices you plan to use the service on. You can also opt to use the web-based user interface if you prefer (if offered by the service you choose).

Once you've signed up and gotten acquainted with the app, start adding passwords and other vault items you want to keep secure. If you have passwords stored in a web browser or other password manager, you can easily import them to the new password manager. You also can manually enter the login credentials, or you can have your password manager automatically save your credentials when you log into one of your online accounts. Once you've got your passwords saved, you can use your password manager to autofill the login credentials for the accounts you have stored in your vault.

Password managers are extremely attractive targets for cybercriminals -- and yes, they can be hacked. All of the password managers listed above operate on a zero-knowledge approach to password management, meaning that not even the company storing your vault data can decrypt the information contained within. Only the user can decrypt and access their vault. Similarly, the password managers featured above don't have access to your master password.

All of this makes it difficult for an attacker to gain access to the passwords and other items in your vault. In the case of the 2022 LastPass breach, attackers were able to steal encrypted user vaults. So all the attacker would need to do is crack the master password for a stolen vault to access everything inside, which would be an easy task if the master password is weak. The best way to protect your data in case of a similar breach is to create a strong master password.

A strong password should ideally be a minimum of 12 characters. You can also create passphrases that consist of randomly strung-together words. The best password managers offer customizable password generators that you can use to create truly random passwords and passphrases based on the criteria you select. The longer and more complex the password or passphrase, the better.

There are a few legitimate free password manager options for anyone who wants to securely store their passwords without paying a dime. Bitwarden is CNET's recommendation for the best free password manager. NordPass is another option and if you're more technically inclined, you can go with KeePass, which is completely free and unlimited but not as easy to use as many others.

Look for a password manager that operates on a zero-knowledge basis and secures user vaults with industry-standard AES 256-bit encryption. Independent security audits can also help bolster trust in a password manager.

Most password managers have pricing plans for individuals, families and businesses. Pricing for family and business plans is more expensive than individual plans, but family and business plans cover multiple users, while individual plans are limited to a single user.

Before you purchase a subscription to a password manager, make sure it's compatible with all of the devices, operating systems and browsers you regularly use. The password manager should also automatically sync your passwords and other vault items across all of your devices.

Make sure your password manager has standard features like multifactor authentication, a password generator, secure sharing and automatic sync. Other useful features to look out for include secure file storage, login autofill, vault health reporting and data breach and dark web monitoring.

Most password managers include secure sharing features that allow you to safely share vault items with others. Some password managers allow secure sharing only with other users of the same service, while others allow secure sharing with anyone, regardless of whether they use a password manager.

Some password managers offer secure file storage options that allow you to safely store documents like health records, bank statements, insurance paperwork and title documents. Some allow for 1GB of secure storage space, while others may offer up to 10GB.

If you want to share a password manager subscription with family or friends, it's a good move to opt for a password manager family plan. With a family plan, one subscription fee covers anywhere from five to 10 individual accounts, depending on the provider.

Bitwarden is a solid choice if you want well-rounded premium password management that's secure, transparent, budget-friendly and easy to use -- or if you want a legitimately unlimited password management solution for free. There is also a desktop app and a mobile app you can use for easier access.

For those willing to pay for a premium plan, Bitwarden offers full vault health reports, 1GB file storage, emergency access (where you can designate a trusted contact to access your vault in case of an emergency), Bitwarden authenticator and advanced multifactor authentication with YubiKey, FIDO2 and Duo. Premium plans are budget-friendly at $10 per year for individuals and $40 per year for families, which allows for up to six users.

One stand-out feature is Travel Mode. When activated, vault items that you haven't marked as "Safe for Travel" will be temporarily erased from the app on all of your devices. This helps keep particularly sensitive login information or financial information inaccessible to any authorities who may ask you to unlock your device for inspection.

Like other top password managers, Keeper lets you store and sync an unlimited number of vault items across an unlimited number of devices. The number of platforms you can use the service on is a little more limited than most other password managers.

NordPass is well-designed, easy to navigate and works seamlessly across all platforms. The free version lets you store an unlimited number of vault items across all of your devices and you get access to additional basic features like a password generator, advanced multi-factor authentication, passkey integration and automatic sync. Users on the free plan can be logged into only one device at a time.