• Sulbha Singh
• Dr. Vikas Gupta

Security of multimedia data is an imperative issue because of fast evolution of digital data exchanges over unsecured network. Multimedia data security is achieved by methods of cryptography, which deals with encryption of data. Most of the application uses Advanced Encryption Standard (AES) and modify it, to reduce the calculation of algorithm and for improving the encryption performance. In modified AES algorithm used 1-Dimensionla S-box instead of 2-Dimensional S-box. Theoretical analysis and experimental results prove that this technique provides high speed as well as low latency on data encryption and decryption. Modified-AES algorithm is a fast lightweight encryption algorithm for security of multimedia data. All above advantages m

Wireless, Security, Cryptography, Encryption, Decryption, Block Cipher, Simulation, Synthesis, Xilinx.

"A Modified S-Box Implementation of Advance Encryption Standard for 256 Bit Key and Light Cipher ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 2, page no.970-974, February-2020, Available :http://www.jetir.org/papers/JETIR2002138.pdf

"A Modified S-Box Implementation of Advance Encryption Standard for 256 Bit Key and Light Cipher ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 2, page no. pp970-974, February-2020, Available at : http://www.jetir.org/papers/JETIR2002138.pdf