https://iaeme.com/Home/journal/IJCET 3145 editor@iaeme.com International Journal of Computer Engineering and Technology (IJCET) Volume 16, Issue 1, Jan-Feb 2025, pp. 3145-3170, Article ID: IJCET_16_01_220 Available online at https://iaeme.com/Home/issue/IJCET?Volume=16&Issue=1 ISSN Print: 0976-6367; ISSN Online: 0976-6375; Journal ID: 5751-5249 Impact Factor (2025): 18.59 (Based on Google Scholar Citation) DOI: https://doi.org/10.34218/IJCET_16_01_220 © IAEME Publication POST-QUANTUM SECURITY: ANALYZING AND MITIGATING QUANTUM COMPUTING THREATS TO TLS AND QUIC PROTOCOLS Gurdeep Kaur Gill Cisco Systems, USA. ABSTRACT This article examines the critical challenges and potential solutions regarding quantum computing's impact on Transport Layer Security (TLS) and QUIC protocols. The article analyzes the vulnerabilities introduced by quantum algorithms, particularly Shor's algorithm and Grover's algorithm, which threaten current cryptographic systems. By investigating the implications for both asymmetric and symmetric