Questions tagged as ['two-factor-authentication']

Two-factor authentication (2FA) is a security system that requires two distinct forms of identification in order to access something. Two-factor authentication can be used to strengthen the security of an online account, a smartphone, or even a door.

Score: 0

Alternative to physical aspect of security

Zero

5/26/23, 12:29 AM

To answer my question, imagine a device that has some sort of secret(s) (stored on a crypto coprocessor), that is encrypted with some sort of symmetric encryption (like AES).

If to make this device secure, I would keep the key separate, in a smart card for example.

Then when the smart card is inserted into the device, I would input the PIN of the smart card to allow the device to read the key on the ...

Crypto aes two-factor-authentication

Score: 2

Difference between fuzzy vault and fuzzy commitment?

Chirag Parmar

3/26/23, 10:17 AM

https://dl.acm.org/doi/10.1145/2905055.2905118

Quoting the above paper's abstract, "Biometric cryptosystem can apply fuzzy vault, fuzzy commitment, helper data and secure sketch, whereas, cancelable biometrics uses distorting transforms, Bio-Hashing, and Bio-Encoding techniques."

It differentiates between a fuzzy vault and a fuzzy commitment scheme. How are the two different? Where does fuzzy ext ...

Crypto encryption two-factor-authentication cryptocurrency

Score: 3

Concatenation of password and TOTP - possible issues

Yash Dhingra

2/7/23, 1:35 PM

I have come across a two factor login mechanism using Time based OTP (TOTP). TOTP (6 digits) is shown to the user in an app.

There are two ways of logging in.

Method 1:

User inputs the username and password. Then approves the login notification received in the TOTP app. There is no need to enter the TOTP in this case.

username = username
password = password

Method 2:

User enters the concatenation of ...

Crypto tls passwords one-time-password two-factor-authentication