<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "SKEMA ENKRIPSI BERBASIS GRAF SUN, BIPARTIT, DAN BINTANG DENGAN SUBSTITUSI DAN PERMUTASI"^^ . "The development of modern computing capabilities and the emergence of\r\nvarious new threats have encouraged exploration of new approaches in cryptographic\r\nalgorithm design. One of the innovations that has developed is the use of graph theory\r\nas the basis for algorithm formation. However, one of the graph-based encryption\r\nschemes that is the focus of this research still has several limitations, particularly in\r\nterms of key space, diffusion mechanisms, and algorithm consistency. Based on this,\r\nthe problem formulation in this study is how to develop consistent encryption and\r\ndecryption algorithms on sun graphs, bipartite graphs, and star graphs by improving\r\ntheir security and key space aspects.\r\nThis study aims to examine and develop a symmetric cryptographic\r\nencryption scheme based on these three types of graphs. The method used is a\r\nliterature study with modifications to the algorithm structure. The development was\r\ncarried out using the Vigenere cipher as a substitution method to expand the key\r\nspace and a permutation cipher as a diffusion mechanism to strengthen message\r\nconfidentiality.\r\nThe results of the study show that the developed encryption scheme has a\r\nwider key space and is polyalphabetic, making it more resistant to frequency analysis.\r\nIn addition, adjustments to the encryption rules result in a clearer, more consistent\r\nalgorithm flow that still satisfies the invertibility property. This development can\r\nbe an alternative approach in the design of graph-based symmetric cryptography\r\nschemes and serve as a basis for further research in the development of other\r\ngraph-based cryptography algorithms."^^ . "2026-02-10" . . . . "UIN SUNAN KALIJAGA YOGYAKARTA"^^ . . . "FAKULTAS SAINS DAN TEKNOLOGI, UIN SUNAN KALIJAGA YOGYAKARTA"^^ . . . . . . . . . "NIM.: 22106010050"^^ . "Ardha Carlinda Putri"^^ . "NIM.: 22106010050 Ardha Carlinda Putri"^^ . . . . . . "SKEMA ENKRIPSI BERBASIS GRAF SUN, BIPARTIT, DAN BINTANG DENGAN SUBSTITUSI DAN PERMUTASI (Text)"^^ . . . . . "22106010050_BAB-I_IV-atau-V_DAFTAR-PUSTAKA.pdf"^^ . . . "SKEMA ENKRIPSI BERBASIS GRAF SUN, BIPARTIT, DAN BINTANG DENGAN SUBSTITUSI DAN PERMUTASI (Text)"^^ . . . . "HTML Summary of #75890 \n\nSKEMA ENKRIPSI BERBASIS GRAF SUN, BIPARTIT, DAN BINTANG DENGAN SUBSTITUSI DAN PERMUTASI\n\n" . "text/html" . . . "515.6 Metode Analitik - Matematika" . .