![]() The user enters a login name and password, and an SHA256 hash is generated exactly as in my previous post:ĬurrentPassword = hashlib.sha256(txtPassword).hexdigest() After importing the sqlite3 and hashlib modules, we connect to the database: The first script ( AddHash.py) simply creates a record in the database to store a user name and the password’s SHA256 value. All the files are available at if anyone wants to re-use the code. The SQLite file itself is saved as ‘hashBase.db‘, and becomes the application database. ![]() This will have two fields – ‘Username‘ and ‘Hash‘, and both are populated when the first program (AddHash.py) runs. To set things up, we use an SQLite browser/manager to create a database with a table called ‘Hashes‘. Where symmetric encryption is used, it might be worth checking if a stored hash is being used as a key.įor the demonstration here, we’ll need the following: One thing I forgot to mention is the SHA256 value is always 256-bits in length, which is what enables any password to become a 256-bit encryption key. The programs here follow the same principle as with my last post – passwords are checked by their SHA256 values and are never stored in their original form. ![]() What often happens is a given application will store passwords and other sensitive information as plaintext in an SQLite record, as discovered recently with the Starbucks ‘app’. ![]() Sql.js allows you to easily import and export SQLite databases.SQLite databases are the common method of storing application data, as they’re lightweight, and what passes for the database ‘engine’ exists inside the same process as the application. And it can be used both in a browser and in Node.js!Thanks to this, this tool is only executed on the browser side. It can be used like any javascript library. Sql.js is a port of SQLite to JavaScript by compiling the SQLite C code with Emscripten, it is MIT licensed. To see more visit About SQLite compiled to javascript (sql.js) There are several appropriate uses for SQLite: SQLite is public domain, it is free to everyone to use for any purpose,it is the most used database engine in the world! SQLite has a full-featured SQL implementation (Tables, indexes, triggers, SELECT, UPDATE, DELELE, VACUUM. Data are contained in a single disk file, SQLite reads and writes directly to disk files.SQLite is cross-platform! SQLite is an embedded SQL database engine. ).SQLite provides local data storage for applicationswhile client/server SQL database engines implements a shared repository of data. SQLite is not directly comparable to client/server SQL database engines (PostgreSQL, MySQL. This tool does not require installation, it is totally online, you can make SQL online.Just have a simple browser to use it!It can help to make tests quickly or when it is not possible to install software on its server. You do not have to know the SQL commands to use this tool. For everyday use, a fat client may seem more appropriate. This small tool is useful and allows not to have to install a fat client for occasional use. This SQL viewer online allows you to make SQL online test, you can SQL practice online.Thanks to sharing mode, you can be several to test an online SQL database. This SQLite viewer allows you to open SQLite file online in order to create, query, and edit SQLite database files.It is useful for developers wanting to query a database file,it can help test and debug data from a sqlite database.This SQLite playground can also be useful for non-developers.
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