Mathematics researchers exploring new cryptographic techniques have used fingerprint data as a test case in their new study.The research team, from Khulna University, Khulna, Bangladesh, have developed a new technique for converting plain-text to numbers or other values for symmetric and public key cryptography.In “A Highly Secured Mathematical Model for Data Encryption Using Fingerprint Data”, Arindam Kumar Paul, Liton Devnath and Md. Rafiqul Islam use fingerprint data as a test case because it is unique for every individual person.As opposed to typical template methods, the team built a mathematical model by using the pixels determination method of a fingerprint image.”We want to use a quite different method for our encryption key generation. We have considered a fingerprint image of any dimensions, let 320*256 be the base dimension.”This image is the receiver's sharable key. By converting the image to a different dimension we can get as many keys as we wish for encryption. But, since the image is same but of different dimensions, so there is always a common ratio between the receivers' shared key.”When receiver's key is declared by the receiver, sender will use that key means black pixels number of that image for encrypting data”.You can see further details of the mathematical model here.

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