Background: Since now a time, the main challenge is the security of publically available audio, video & text data i.e. social media communication; hence the author presents an exceedingly secure communication system to hide the data from an attentive adversary. Objective: The aim is to design and analyze a novel algorithm to be implemented for message transmission using multiimage LSB steganography and crucial variable-length cryptography. Encoder, decoder and social media as a channel are main parts of the study. Methods: This model uses different computer techniques like cryptography and steganography with video handling. The evolution interest of this work is to implement the raw video as the cover on the QR code image. This image is to be transmitted as information by enshrouding it in the raw footage. Additionally, encryption of QR code image using VLMKG (Variable length Mixed key Generation) cryptography improve the author's endeavors. The variable-length key is generated separately to implement the cryptography. In the proposed modal, multi-image LSB steganography is imposed which gives one-bit replacement in the spatial domain. Wavelet Transform (Daubechies family) has been applied for denoising purpose in a way to enhance the accuracy of receiving message. Results: The author found that using the proposed model on an agreement of five QR Code images with three raw video grouping, any information in the form of QR code image can be transmitted successfully. Conclusion: The creator efforts with LSB steganography, variable length key cryptography and MATLAB usage had superbly extracted the image features, calculations and the consequences were observed to be palatable.

: Silica-POCl2 was used as the promoter for the three-component reaction of ethyl/methyl 3-phenyl glycidate, aniline derivatives, and dimethylcarbonate, leads to the synthesis of methyl/ethyl 2-oxo-4-phenyl-3-aryloxazolidine-5-carboxylate derivatives. The desired product was obtained in high yields.