eprintid: 138132 rev_number: 79 eprint_status: archive userid: 218010 dir: disk0/00/13/81/32 datestamp: 2025-09-15 08:25:18 lastmod: 2025-09-15 08:25:18 status_changed: 2025-09-15 08:25:18 type: thesis metadata_visibility: show creators_name: Abdullah Mahdi, - creators_name: Rini Marwati, - creators_name: Al Azhary Masta, - creators_nim: NIM2100090 creators_nim: NIDN0025066602 creators_nim: NIDN0010069001 creators_id: mahdi.9i.201718@gmail.com creators_id: rinimarwati@upi.edu creators_id: alzahari.masta@upi.edu contributors_type: http://www.loc.gov/loc.terms/relators/THS contributors_type: http://www.loc.gov/loc.terms/relators/THS contributors_name: Rini Marwati, - contributors_name: Al Azhary Masta, - contributors_nidn: NIDN0025066602 contributors_nidn: NIDN0010069001 contributors_id: rinimarwati@upi.edu contributors_id: alzahari.masta@upi.edu title: PENERAPAN KRIPTOGRAFI ADVANCED ENCRYPTION STANDARD DAN STEGANOGRAFI PIXEL VALUE DIFFERENCING PADA MEDIA GAMBAR ispublished: pub subjects: L1 subjects: QA divisions: JPM full_text_status: restricted keywords: Kata Kunci: Advanced Encryption Standard, Kriptografi, Pixel Value Differencing, Steganografi. Keywords: Advanced Encryption Standard, Cryptography, Pixel Value Differencing, Steganography. note: https://scholar.google.com/citationshl=en&user=vRw9PUcAAAAJ ID SINTA Dosen Pembimbing : Rini Marwati : 5981279 Al Azhary Masta : 6007709 abstract: Pesatnya pertukaran informasi digital menuntut adanya perlindungan data yang lebih kuat. Kriptografi dapat menyamarkan data, namun masih dapat menimbulkan kecurigaan karena bentuk yang dienkripsi terlihat tidak wajar. Steganografi menjadi solusi dengan menyembunyikan data tersebut kedalam media, seperti gambar. Penelitian ini mengimplementasikan kombinasi kriptografi Advanced Encryption Standard-128 dan steganografi Pixel Value Differencing (PVD) untuk mengamankan data teks pada citra berwarna menggunakan bahasa Python. Proses meliputi enkripsi, embedding, ekstraksi, dekripsi, serta pengujian kualitas citra dengan Peak Signal to Noise Ratio (PSNR). Hasil menunjukkan citra memiliki kualitas baik dengan nilai PSNR lebih dari 30 dB, sehingga perubahan visual sulit dideteksi. Penelitian ini menunjukkan bahwa pendekatan kombinasi AES-128 dan PVD efektif untuk perlindungan ganda, yaitu dari segi keamanan isi dan penyamaran eksistensi pesan. The rapid exchange of digital information requires stronger data protection. Cryptography can disguise data, but it may still raise suspicion since encrypted forms often appear unnatural. Steganography offers a solution by hiding the data within media such as images. This study implements a combination of Advanced Encryption Standard-128 (AES-128) cryptography and Pixel Value Differencing (PVD) steganography to secure text data in color images using Python. The process includes encryption, embedding, extraction, decryption, and image quality testing with Peak Signal to Noise Ratio (PSNR). The results show that the images maintain good quality with PSNR values above 30 dB, making visual changes difficult to detect. This study demonstrates that the combination of AES-128 and PVD is effective for dual protection, both in securing message content and concealing its existence. date: 2025-08-20 date_type: published institution: Universitas Pendidikan Indonesia department: KODEPRODI44201#Matematika_S1 thesis_type: other thesis_name: other official_url: https://repository.upi.edu/ related_url_type: org citation: Abdullah Mahdi, - and Rini Marwati, - and Al Azhary Masta, - (2025) PENERAPAN KRIPTOGRAFI ADVANCED ENCRYPTION STANDARD DAN STEGANOGRAFI PIXEL VALUE DIFFERENCING PADA MEDIA GAMBAR. S1 thesis, Universitas Pendidikan Indonesia. document_url: http://repository.upi.edu/138132/1/S_MAT_2100090_title.pdf document_url: http://repository.upi.edu/138132/2/S_MAT_2100090_Chapter1.pdf document_url: http://repository.upi.edu/138132/3/S_MAT_2100090_Chapter2.pdf document_url: http://repository.upi.edu/138132/4/S_MAT_2100090_Chapter3.pdf document_url: http://repository.upi.edu/138132/5/S_MAT_2100090_Chapter4.pdf document_url: http://repository.upi.edu/138132/6/S_MAT_2100090_Chapter5.pdf document_url: http://repository.upi.edu/138132/7/S_MAT_2100090_Appendix.pdf