Read: Class 11 : Authentication - Goorob-401-advanced-javascript/amman-javascript-401d1 GitHub Wiki
User Modeling :
Modern web applications need to model sensitive information about their users. When a users provides an applications with sensitive information, they are trusting that it will not be leaked are misused. This means that it is a developers responsibility to store that information responsibly. Some information, like emails, user names, and addresses can be stored in plain text, as long as the database is password protected and/or behind a firewall. Other information, like a users password, should be encrypted using a hashing algorithm before it is ever stored. this prevents anyone (including developers with database permissions) from ever getting access to their password .
Cryptography :
is the science which studies methods for encoding messages so that they can be read only by a person who knows the secret information required for decoding.
Hash Algorithms :
A Cryptographic Hash Algorithm takes a piece of data and produces a hash that is deliberately difficult to reverse. If identical data is passed into the algorithm the same hash will always be produced. Hash algorithms are often used for checking the integrity of data
Cypher Algorithms :
A Cryptographic Cypher Algorithm takes a piece of data and a key and produces encrypted data. Later the encrypted data can be reversed into the original data by decrypting it using the same key.
Basic Authorization :
Basic Authorization is a common method used to send a username and password in an HTTP request. The username and password are joined with a ‘:’ then “base64 encoded” and placed after the string ‘Basic ‘. The resulting string is set to the value of an Authorization header.