How Fingerprint scanner works for iPhone 5S and Samsung Galaxy S5?


Did you hear about the unveiling of Samsung Galaxy S5 at MWC 2014 with fingerprint scanning feature? Want to know how the fingerprint sensor works in smartphones to provide security? Kindly read further to know the functioning of fingerprint scanner in smartphones to provide additional security.

Like iPhone 5S and HTC One Max, Samsung Galaxy S5 will also have a fingerprint sensor. Samsung will be the only one who will allow to use this sensor for general shopping (in association with Paypal). Now, the two queries that come to mind as soon as we hear about this are: What is a fingerprint sensor? and Is fingerprint scanning a foolproof security method for smartphones?

A fingerprint sensor enables you to keep your phone locked and then unlock it making use of finger touch. This is done to get rid of the trouble to remember pass codes and enter them to unlock any smartphone. The fingerprint sensor simply scans your finger touch and helps you to unlock your phone easily. This feature is currently available in top smartphones like iPhone 5S, HTC One Max, etc. and will soon be seen in Samsung Galaxy S5 model.

How does fingerprint sensor work?


Both iPhone 5S and Samsung Galaxy S5 possess a sensor on the home screen (button). For S5, one will be able to make the phone read your finger print correctly by swiping 7 times. Along with fingerprint security, you can even keep passcode security for S5 as a backup for scenarios when the phone fails to identify your finger print. The finger touch or fingerprint information is converted in to "hash" (a mathematical representation). This information is then stored in a secured area on the phone and is never shared to maintain security. To unlock the phone, all one needs to do is just finger swipe on the home button (screen). Again, this fingerprint information is converted to "hash" and compared with the "hash" information stored on the phone. If they both match, then your smartphone unlocks, else, it will not.

Through updated version of iOS security white paper, Apple has come out with detailed explanation on how iPhone's fingerprint sensor keeps our phone information secured. Upon fingerprint touch / swipe, the information is encrypted end-to-end and maintained at a secured location on A7 chip. This information cannot be read by A7 or Apple. Also, the fingerprint image print is stored in memory only till it is decrypted (decryption key). This key is generally removed / deleted once your phone is rebooted or 5 unsuccessful login attempts are made or when your phone is inactive for 2 days.

Comparison between Apple and Samsung
  • The fingerprint security information can be maintained on iPhone by making use of up to 5 fingers on iPhone and up to 3 fingers on S5.

  • For iPhone, you can swipe down or sideways with your finger/s, whereas for S5, you can only swipe down.

  • Apple even uses this fingerprint sensor for purchase authentication on iTunes. On the other hand, Samsung allows you to complete PayPal payments. For example, if you use Paypal app and want to make mobile payment for online transactions, then, your fingerprint will be used instead of any password. Some people might be worried in such cases fearing that the secured hash will be shared with PayPal. However, instead of sharing hash information, PayPal gets confirmation from your phone that the fingerprint information has been verified successfully.


  • Advantages of fingerprint scanning for smartphones



    • To enhance security of the phone and providing easy alternative for unlocking phones by simple finger swipes instead of entering pass codes. Users no longer have to worry about remembering pass codes for phone security.

    • For passcode-based phone locking system, others can try different pass code combinations and there is a higher probability of them being able to unlock your phone.
      However, in case of a fingerprint-based locking system, others will never be able to unlock your phone.

    • Because of the easiness involved in unlocking a smartphone using fingers, more people are encouraged to start locking their phones for better security.

    • With fingerprint security feature, it is possible to have the pass code security feature as a backup. This means such phones can have dual security system which will be almost impossible to break.



    Thus, as seen above, fingerprint sensor does add a new secured dimension to your smartphone. The security offered by fingerprint scanning may not be completely fool-proof, but, it is definitely better than most phone security methods available today. Biometrics is now proving useful for authentication purposes as well. I personally found this fingerprint sensor functionality pretty useful. I hope many new Android smartphones do come up with this feature so that more and more users can take advantage of it. Please feel free to share your opinion about this.

    Read Top 5 smartphones of 2014 with "cool" and "fancy" features


    Related Articles

    Apple iPhone 5S specification, review and price

    Are you searching for specification of iPhone 5S ? Then you are at right place in this article. I have told about iPhone 5S. There are some rumors and some Apple specification in my article.

    Cheapest smartphone with Android Ice Cream Sandwich

    This article deals with the details and features of Android smartphones with Ice Cream Sandwich as their OS. This article tells about the features of some smartphones that uses Android OS. In order to get exact knowledge, read the article.

    More articles: Apple iPhone 5S Samsung Galaxy S5 Android Smartphones

    Comments

    Author: NILESH03 Mar 2014 Member Level: Bronze   Points : 6

    Advantages of fingerprint scanning for smartphones

    To enhance security of the phone and providing easy alternative for unlocking phones by simple finger swipes instead of entering pass codes. Users no longer have to worry about remembering pass codes for phone security.

    For passcode-based phone locking system, others can try different pass code combinations and there is a higher probability of them being able to unlock your phone.

    However, in case of a fingerprint-based locking system, others will never be able to unlock your phone.

    Because of the easiness involved in unlocking a smartphone using fingers, more people are encouraged to start locking their phones for better security.

    With fingerprint security feature, it is possible to have the pass code security feature as a backup. This means such phones can have dual security system which will be almost impossible to break.



  • Do not include your name, "with regards" etc in the comment. Write detailed comment, relevant to the topic.
  • No HTML formatting and links to other web sites are allowed.
  • This is a strictly moderated site. Absolutely no spam allowed.
  • Name:
    Email: