Security of One Time Passwords (OTP)

The chances are that this is the first time you’ve seen the OTP acronym. OTP is one of possible replacements of static passwords. Instead of remembering your password, you need to have a device that will compute a new OTP code each time you want to log on to a server. You will also need a different OTP “generator” for each server or web service that uses OTP and you will most likely still have to enter your password (or a shorter PIN) as well.

One time passwords are short numeric strings of a fixed length. Each time you want to log on somewhere with OTP, the string you enter will be different. The OTP string would change with the time or after each time you use one OTP value.

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HTTPS – what does it stand for?

HTTP stands for hypertext transfer protocol – the universal language of “the web”. HTTPS is a secure variant of this language as it provides tools to verify which website you actually connect to.

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“One time passwords” are not passwords

We did a bit of research into what IT start-up companies need in terms of security. I did expect that secure authentication / logons would be at the top but I was surprised that OTP (one time passwords) were at the bottom.

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