Wireless Sensor Networks (WSN) are becoming popular day by day,

however one of the main issue in WSN is its limited resources. We

have to look to the resources to create Message Authentication Code

(MAC) keeping in mind the feasibility of technique used for the

sensor network at hand. This research work investigates different

cryptographic techniques such as symmetric key cryptography and

asymmetric key cryptography. Furthermore, it compares different

encryption techniques such as stream cipher (RC4), block cipher

(RC2, RC5, RC6 etc) and hashing techniques (MD2, MD4, MD5,

SHA, SHA1 etc). The result of our work provides efficient

techniques for communicating device, by selecting different

comparison matrices i.e. energy consumption, processing time,

memory and expenses that satisfies both the security and restricted

resources in WSN environment to create MAC.