kontrollkoodi
Kontrollkoodi, or control code, refers to a code used to verify the correctness or authenticity of data, documents, or communications. These codes are often generated automatically by computer systems and are used for error checking, validation, and data integrity. Kontrollkoodi implementations appear across financial services, postal systems, and digital services, among others.
Forms of kontrollkoodi include check digits, cryptographic codes, and one-time codes. Check digits use arithmetic algorithms
Applications are diverse. In banking and payments, kontrollkoodi helps verify card numbers and transaction requests. In
Generation and validation: A kontrollkoodi is typically generated from data and, in many cases, a secret key
See also: Check digit, Message authentication code, One-time password, Two-factor authentication.