*Department of Mathematics, SKR Engineering College, Chennai, India
**Department of Mathematics, Anna University, MIT Campus, Chennai, India
Numbers play a vital role in identifications and transactions, now a day's most of the field say client credit card numbers, social security numbers, tax file numbers etc need to kept secret when they send it electronically. It has been recognized that encryption and decryption mostly emerges from mathematical disciplines. In this paper, we present a new combinatorial technique to encrypt and decrypt the secret number through labeled graph using domination theory.
Domination, encryption, decryption, labeled graph
