![]() ![]() ![]() When the user registers in the application we hash the password and save it to the database. ![]() We have to hash the password in two cases: If the data is hashed, it’s very hard to convert the hash back to the original input and it’s also very hard to find the Normally the length of this line is fixed. Hashing is a one-way function that converts the input to a line of symbols. HashingĪccess to the system with exposed passwords. In a form that the attacker can’t use it for authentication. In this case, the attacker could use the password right away to access the application. That an attacker can steal the database with passwords or get access to the passwords by other methods like SQL injection. Obviously, it is a bad idea to save passwords as plain text in the database. We have to deal with the fact that we have to save users' passwords in our system for comparison during authentication. Let’s have a look at some best (and worst) practices of how to do that. Compare the password the user provided with the user’s password from the database.Find the user name in the storage, usually a database.Get the user name and password from the user who wants to authenticate.If we want to authenticate the user on the server side, we have to follow these steps: This article is accompanied by a working code example on GitHub. This article shows how to encode and store passwords securely We have to handle users' passwords in our system. Systems with user management require authentication. ![]()
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