Modular Cryptographic Algorithm Using Index Difference Ladder Graph

Cryptography can be used to conceal the message visible solely to the sender and the intended receiver. In this study, we propose a newly formulated graph, referred to as the Index Difference Graph and utilizes its structural properties as a core mechanism in cryptographic systems. Moreover, we introduce a new graph-based Index Difference Modular Cryptography while maintaining a computational complexity of O(n), which improves encryption efficiency and overall security.