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One of Authentication technique involves the use of a secret key to generate a small fixed size block of data known as cryptographic checksum or MAC that is appended to the message. The unauthorized thefts in the society have made the requirement for reliable information security mechanisms. Information security can be accomplished with the help of a prevailing tool like cryptography, protecting the cryptographic keys is one of the significant issues to be deal with. Here the authors proposed a biometric-crypto system which generates a cryptographic key from the Finger prints for calculating the MAC value of the information they considered fingerprint because it is unique and permanent throughout a person's life.
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