Encryption is an important aspect in data storage in today's life. The necessity of securing highly classified data like military data, bank transactions, personal data, etc. is a must and for that multi layered security becomes extremely important. Symmetric or asymmetric key can be used for the process of encryption and decryption. Symmetric key uses the same secret key for encryption of text and decryption of ciphered text. There are existing systems where with the help of biometric feature such as fingerprint is used to secure the data. The existing systems have only one layer of security. The proposed system has three layers of security. In order to retrieve the secret key, user has to provide his/her fingerprint followed by password given by the user and lastly iris image of the user. Thus, providing two additional layers of security, the data becomes more classified as even if the fingerprint is lifted by an attacker to retrieve the secret key, he must get hold of password which only the user is aware of and iris pattern of the user which is impossible to retrieve.
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