Nowadays it’s very common for platforms and services to ask for a verification code to add a new security layer. OTP, TOTP and HOTP codes are three different protocols to generate one time only passwords. The differences in OTP, TOTP and HOTP are important to know more about how you protect your accounts.
OTP, TOTP and HOTP codes can create one time only passwords and are far superior than traditional passwords. In this article we explore each code and its main features.
Differences in OTP, TOTP and HOTP codes and the creation of one time only passwords
The three methods are present nowadays in almost every platform and Internet service you log in to. You can add new layers of security with just a few clicks and avoid hackers to access your device.
OTP code
OTP stands for One Time Password. It refers to passwords you can use only once. You can receive it in your e-mail or through a SMS. When you enter your account, input the password and you will be asked for the OTP for verification. It adds an extra layer of protection and it is present in bank accounts and social networks, for example. As soon as you get it, use it because it expires quickly.
TOTP
It’s very similar to OTP but it includes the time factor. The password changes after a few minutes. It uses an algorithm to generate codes that change after certain time. It’s a very powerful tool to protect your accounts. You can use Google Authenticator or Microsoft Authenticator to generate this type of passwords.
Most of the services now use double factor authentication. You can easily generate a TOTP and synch it with your favorite apps in just a few minutes.
HOTP
The last in the differences comparison between OTP, TOTP and HOTP is HOTP protocol. It uses the HMAC algorithm and it’s even based. When you activate a new code, it generates a new one. It’s not the most popular protocol now but it’s an alternative.
The differences between OTP, TOTP and HOTP are not that important. But having three different alternatives help to create a different strategy when protecting your devices.