syöttövalidointi
Syöttövalidointi, or input validation, is a critical process in software development aimed at ensuring that data supplied by users or other programs is correct, complete, and secure. It involves checking the data against predefined rules or constraints before it is processed or stored. The primary goal of input validation is to prevent errors, security vulnerabilities, and malicious activities such as SQL injection, cross-site scripting (XSS), and buffer overflows.
Input validation can be performed at various stages of data processing, including at the client-side (e.g., in
Common techniques for input validation include data type checking, range checking, format validation, and pattern matching.
Effective input validation requires a comprehensive understanding of the data requirements and potential threats. Developers should