: Proposals for 3D-AES block cipher and other end-to-end encryption methods sought to secure the SMS content itself during transmission [21].
: A user enters their credentials (username/password) on a website or app [13]. SMS Verification Method 2019.pdf
: The server generates a unique, time-sensitive code and sends it via the mobile network to the user's registered phone number [13]. : Proposals for 3D-AES block cipher and other
: The user enters the code into the application to prove they have physical possession of the device [13]. 2. Key 2019 Regulatory Changes or SMS One-Time Password (OTP)
SMS verification, or SMS One-Time Password (OTP), was the primary method for online identity verification in 2019 [10]. The typical process includes: