Cryptography is the study of methods of sending messages in disguised form so that only the intended recipients can remove the disguise and read the massage. With widespread availability of computer technology, the rapid growth of wireless communications secured exchange of information has become a challenging task. The most basic of the modules in modern cryptography is that of a primitive, which may be regarded as a cryptographic building block which performs one or more desired functions, and may be combined with others to form a cryptographic protocol. The most well-known and perhaps the simplest primitive is encryption, which allows parties to achieve confidential data transmission over an insecure channel. In the present paper we proposed a cryptographic technique using elements of a finite field and logical operators basing on inverse property. To test the efficacy of the proposed scheme the cryptanalysis is performed.

Encryption Decryption Logical XNOR Operator Finite Fields key matrix