An enhancement on block cipher key wrapping algorithm of the advanced encryption standard

AES is the Advanced Encryption Standard, a United States government standard algorithm for encrypting and decrypting data. With the fast progression of digital data exchange in electronic way, information security is becoming much more important in data storage and transmission. Cryptography has come up as a solution which plays a vital role in information security system against various attacks. This security mechanism uses some algorithms to scramble data into unreadable text which can be only being decoded or decrypted by party those possesses the associated key. Two types of cryptographic techniques are being used: symmetric and asymmetric. In this paper we have used symmetric cryptographic technique AES (Advance encryption standard) having 288 bit block as well as key size. And the same conventional 128 bit conventional AES algorithm is implemented for 288 bit using 6*6 Matrix. After the implementation, the proposed work is compared with 128 bit, 192 bits & 256 bits AES techniques on two points. These points are encryption and decryption time and throughput at both encryption and decryption sides.