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What are better alternatives to using a password to log in?

What are better alternatives to using a password to log in?

Image credit: Photo by Pixabay from pexels.com

By Shubhankar Kulkarni on Oct 30, 2020

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Fingerprint + finger veins (in 3D)

[1] https://www.gizmochina.com/2020/09/30/smartphones-new-3d-biometric-scan-finger-veins/

by Juran K. on Nov 04, 2020

What are the disadvantages of using finger impressions?

by Shubhankar Kulkarni on Oct 30, 2020

Juran K. 19 days ago
I was thinking about the impression (3D fingerprint) a bit and I unfortunately think it is not novel.

Already in 2011 there was a paper suggesting the usage of infrared technology to detect the position of finger veins and fingerprint geometry using near infrared imaging (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231585/).
Then, if you check the Apple Touch ID technology, it works in a way that it passes a small current through person's epiderms, recording the fingerprint. It makes mathematical representations of your fingerprint, which improves with usage. It sounds like hardcore 3D-imaging already.
Recently, Apple apparently started working on a new technology that would produce shortwave infrared light and make a fingerprint 3D representation using the reflected light (https://gadgets.ndtv.com/mobiles/news/apple-in-display-infrared-fingerprint-scanner-patent-us-iphone-ipad-touch-face-id-2320521). They describe that that is the usual way how infrared sensor works, ut now it will be an in-display feature.

I also commented below that it would be nice to develop a small sonar to detect 3D surface of a fingerprint, but it is already there. There is a paper from 2019 reviewing the ultrasound technology which can already compete with other biometric methods, because of its advantages in the 3D surface detection accuracy (https://pubmed.ncbi.nlm.nih.gov/31137504/).
Also, in the article about infrared fingerprint scanning referenced above, authors also refer to ultrasonic technology that detects ridges and valleys of the fingerprint using sounds and is already present in Samsung Galaxy S10 and S20 series.

So, this (https://www.samsung.com/global/galaxy/what-is/ultrasonic-fingerprint/) is maybe the best representation of your idea about impressions (if I got it right).
Shubhankar Kulkarni 18 days ago
Juran K.Wow! I am amazed that both technologies already exist. You have got it right. The apple technology takes 3 images of your finger, from the skin to the epidermis using infrared technology. They then analyze the patterns on your finger (ridges, pores, etc.) using certain mathematicaly approximations. It would be difficult to imitate someone else's finger (not fingerprint). The ultrasonic technology is equally impressive. Although I commented below that I am not sure such super-fine technology exists, I stand corrected. Thank you, Juran!
Shubhankar Kulkarni 21 days ago
One password (impression) to unlock them all (apps): Imagine your phone has an impression lock. Once you unlock your phone, all your apps get unlocked and you can use them. There can be a backup password. If someone uses your password and unlocks the phone, they cannot access any of your apps. Apps need the impression to unlock.

Use fingerprint combinations

by Juran K. on Oct 31, 2020

Combine face recognition with fingerprints

by Juran K. on Oct 31, 2020

Shubhankar Kulkarni 21 days ago
Face recognition is laden with opportunities to clone. The attributes of humans that leave a memory easily are easy to imitate. What I mean by that is, for example, your face can be remembered by others, they can capture an image using a camera and that is the memory that stays. It can be modified and used to crack your account keys. That is why I thought of impressions. Impressions leave no kind of memories, at least, today. A photo, again today, cannot be that highly resolved to measure the undulations on one's finger. Even if we touch a surface, we leave behind a print but not an impression.
Juran K. 21 days ago
Shubhankar Kulkarni I am not sure I understand what you mean by impressions. How would you record an impression?
Shubhankar Kulkarni 21 days ago
Juran K. Just like an electron microscope recording the surface pattern of a bacterium. Fingers leave a fingerprint since there undulations on the skin surface. The impression is the data on not just the print pattern but also the surface properties (depth of the trough, breadth of the ridges, size and depth of the pores, etc.) (https://www.google.com/search?q=finger+print+parts&sxsrf=ALeKk03CR4dT-5HakfDYNq4II6l6LsJ0HQ:1604319563776&tbm=isch&source=iu&ictx=1&fir=uK8Aw7UbdK942M%252CTyEWF_QAZPrIzM%252C_&vet=1&usg=AI4_-kQ9VDPdZLySfXhWyK8RtSJ6dvaspw&sa=X&ved=2ahUKEwiV0NGN7OPsAhXq4nMBHTFGAVkQ9QF6BAgIEEU&biw=1517&bih=666#imgrc=uK8Aw7UbdK942M).

There are different techniques that can be used:
https://www.optex-fa.com/products/photo_sensor/bgs/bgs_dl/
https://www.nature.com/articles/srep23551

Face recognition with blink patterns

by Juran K. on Oct 31, 2020

Use regular "digit passwords" with fingerprint as a character

by Juran K. on Oct 31, 2020

Shubhankar Kulkarni 21 days ago
I like the idea of adding another dimension (digits, fingerprints, impressions, etc.) to the password. It increases the complexity multi-fold since now we can play around with it - just like you mentioned, there can be a specific order in which you can use the digits and implant voice/ fingerprints/ impressions among the digits. Fingerprints can be imitated more easily than impressions; hence, I am more inclined to add impressions to the password. The only other problem I see using this is remembering the password. Although with multiple dimensions, even easy passwords would be hard to guess; so that is a plus.

What about using "vocal passwords "?

by Antonio Carusillo on Nov 01, 2020

Shubhankar Kulkarni 21 days ago
Voice, according to me, is pretty easy to record and copy. You can record while the other person is talking (in person, over the phone, live video-chat) anywhere and everywhere when the person talks. There are AI based tools that can imitate your tone from the lowest number of possible recorded words. So when the system asks you to say a randomly generated key phrase, the machine can, possibly, use your voice and say the phrase. For exampl, they proclaim that you can clone a voice within 5 seconds using this device (https://medium.com/syncedreview/clone-a-voice-in-five-seconds-with-this-ai-toolbox-f3f116b11281#:~:text=Montreal%2Dbased%20AI%20startup%20Lyrebird,only%20a%20few%20audio%20samples.).

Pixel compartmentalization

by Anja M on Nov 02, 2020

Povilas S 19 days ago
So this is basically and updated version of what already exists as a password alternative on most smartphones, giving some more freedom to create and adjust things yourself:)
Anja M 19 days ago
Povilas S Yes, that is correct. I think we occasionally easily dismiss these rather simple solutions, but in fact a bit of an update could make them even more difficult for cracking than it seems.
Shubhankar Kulkarni 20 days ago
I like the idea (if I have understood it correctly; I could not read the text in the images). I get the first part. In the second one, you intend to draw lines to divide the screen into irregular shapes? So, is the password drawing the lines or tapping the shapes made by the lines in a specific order? In any case, it is a good idea. The only disadvantage I see is remembering the order or the pattern.

A question bank full of personal questions

by Jamila on Nov 03, 2020

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Shubhankar Kulkarni 24 days ago
I initially thought of quick blood (DNA) test, but:
1. It is hard to make it "quick".
2. I remembered a scene from the movie GATTACA where they attach a small blood bag from a different source under a fake thumb skin. The blood from that bag gets tested instead of the person who is wearing the fake skin. So there is already a way around it.
Also, acquiring someone else's blood is easier given the growing number of blood tests we do and also due to blood donation.
Shubhankar Kulkarni 24 days ago
1. The same goes for retinal scanners. Lenses can be used to mimic other's retina.
2. Face? - We all know how easily that can be changed.
Martina Pesce 20 days ago
Shubhankar Kulkarni you literally wrote what I was thinking! 😂
Shubhankar Kulkarni 20 days ago
Martina Pesce DNA is the most personal you can get. 😁 I started from that and then went downward.
Povilas S 19 days ago
Shubhankar Kulkarni The ultimate conclusion - everything can be hacked and there's no way around it :D There's another movie "Minority Report" where the protagonist transplanted his eyes for the same reason. That's about as hardcore as you can get :D

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