An In-Depth Comparative Analysis of Cryptographic Techniques for Ensuring Data Privacy in E-Applications

Cryptography, dedicated to the exploration of secure communication techniques, spans a spectrum of deployment, incorporating diverse encryption methods that range from symmetric to asymmetric approaches. Its primary objective revolves around safeguarding data and information and curtailing unauthorized access or tracking. In the current epoch of information technology, encryption emerges as a critical component for safeguarding data, providing essential protection against unauthorized access. Ensuring data privacy stands as an imperative, and encryption plays a pivotal role in preserving confidentiality. Its significance is prominent in significant sectors like e-banking, e-commerce, and e-healthcare. By fortifying security within secure networks, encryption prevents unauthorized access, safeguarding sensitive information. Subsequent decryption, facilitated through secure means, ensures comprehensibility. This dual process of encryption and decryption lays the groundwork for authentication, confidentiality, and integrity, constituting the bedrock of web security. The research at hand embarks on a comprehensive exploration of numerous cryptographic algorithms, conducting a meticulous comparative analysis based on diverse performance metrics. Our examination extends to various symmetric and asymmetric techniques, recognized for their robust performance and the establishment of more secure connection models. The research focuses on three pivotal application areas: e-banking, ecommerce, and e-healthcare systems. The identified results emphasize the lasting importance of advancements in cryptography in ensuring data security throughout the vast expanse of the internet.