From the course: Learning Cryptography and Network Security
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Understanding passwords
From the course: Learning Cryptography and Network Security
Understanding passwords
- [Instructor] A password is something you know, it's a series of numbers and characters and it provides access control. If you obtain someone's password you'll have the same rights as the user. Passwords are used to provide a form of authentication like presenting your driver's license at the bank when you want to cash a cheque. Organizations seek to secure their passwords for their users. Even still over the last several years there have been multiple reports on compromised passwords. Some methods store passwords using a hash value. Malicious actors use a variety of methods to attack passwords. One way is by using a rainbow table which is a database of many hashed passwords. If you have the hash, you match it against the database to find the password. Salting the password with a random string will protect against a rainbow table attack. The salt is stored in the database along with the hash or as part of the hash…
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