Securely Storing Passwords: Part I

The video tutorial covers the importance of securely storing user passwords by using hashing algorithms instead of plain text storage. It introduces bcrypt, a widely used hashing algorithm, and demonstrates how to implement it in Node.js applications. The tutorial explains the difference between hashing and encryption, and shows how to hash passwords and compare them for authentication purposes.

Why is storing passwords in plain text considered a bad practice?

• It complicates the login process.

• It increases the cost of storage.

• It exposes users to potential hacks.

• It makes the database slower.

What is a common mistake users make with passwords that developers need to protect against?

• Using too many special characters

• Using the same password across multiple accounts

• Changing passwords too frequently

• Using passwords that are too long

What is the main advantage of using a hashed password over a plain text password?

• Hashed passwords are shorter.

• Hashed passwords are more secure.

• Hashed passwords are reversible.

• Hashed passwords are easier to remember.

What is bcrypt primarily used for?

• Compressing data

• Generating random numbers

• Encrypting files

• Hashing passwords

What is the recommended number of rounds for bcrypt hashing?

• 16

• 12

• 8

• 4

What happens if the number of rounds in bcrypt is too high?

• The hash becomes less secure.

• The password becomes shorter.

• The hash becomes reversible.

• The application becomes slower.

How does bcrypt ensure the security of hashed passwords?

• By making the hash reversible

• By using a fixed number of rounds

• By using a non-reversible algorithm

• By storing the hash in plain text

What is the difference between hashing and encryption?

• Neither is reversible.

• Both are reversible.

• Encryption is reversible, hashing is not.

• Hashing is reversible, encryption is not.

How can bcrypt help in verifying a user's password during login?

• By generating a new password

• By comparing the hash of the input password with the stored hash

• By decrypting the stored hash

• By storing the password in plain text

What is the purpose of the bcrypt.compare method?

• To encrypt the password

• To hash the password

• To compare a plain text password with a hashed password

• To store the password in the database