<mets:mets OBJID="eprint_32815" LABEL="Eprints Item" xsi:schemaLocation="http://www.loc.gov/METS/ http://www.loc.gov/standards/mets/mets.xsd http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-3.xsd" xmlns:mets="http://www.loc.gov/METS/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><mets:metsHdr CREATEDATE="2026-09-28T20:52:37Z"><mets:agent ROLE="CUSTODIAN" TYPE="ORGANIZATION"><mets:name>EPrints Universitas Amikom Yogyakarta</mets:name></mets:agent></mets:metsHdr><mets:dmdSec ID="DMD_eprint_32815_mods"><mets:mdWrap MDTYPE="MODS"><mets:xmlData><mods:titleInfo><mods:title>PENERAPAN TANDA TANGAN DIGITAL BERBASIS ECDSA&#13;
YANG DISEMATKAN DALAM QR CODE UNTUK&#13;
AUTENTIKASI DOKUMEN DIGITAL</mods:title></mods:titleInfo><mods:name type="personal"><mods:namePart type="given">Edo</mods:namePart><mods:namePart type="family">Rahmatullah</mods:namePart><mods:role><mods:roleTerm type="text">author</mods:roleTerm></mods:role></mods:name><mods:abstract>Perkembangan teknologi mendorong peningkatan penggunaan dokumen&#13;
elektronik seperti PDF untuk keperluan administrasi. Namun, dokumen digital&#13;
rentan terhadap manipulasi oleh pihak yang tidak berwenang. Penelitian ini&#13;
bertujuan untuk membangun sistem autentikasi dokumen digital berbasis web&#13;
bernama "AuthentiC" menggunakan kombinasi algoritma Elliptic Curve Digital&#13;
Signature Algorithm (ECDSA) dan Quick Response Code (QR Code).&#13;
Sistem ini dikembangkan menggunakan bahasa pemrograman Python&#13;
dengan framework Flask, serta pustaka PyMuPDF untuk pemrosesan dokumen.&#13;
Proses penandatanganan dilakukan dengan melakukan hashing dokumen&#13;
menggunakan SHA-256, enkripsi nilai hash menggunakan private key untuk&#13;
menghasilkan tanda tangan digital (r, s), dan pengodean informasi tersebut ke dalam&#13;
format JSON-Base64 sebelum disematkan sebagai QR Code pada dokumen PDF.&#13;
Verifikasi dilakukan dengan memindai QR Code melalui perangkat mobile&#13;
atau mengunggah kembali file ke sistem web. Pengujian fungsional dengan BlackBox&#13;
Testing menunjukkan seluruh fitur berjalan sesuai rancangan. Hasil uji&#13;
integritas membuktikan sistem mampu mendeteksi manipulasi teks atau struktur&#13;
file secara instan melalui perubahan nilai hash. Penelitian ini berhasil membuktikan&#13;
bahwa integrasi ECDSA dan QR Code memberikan solusi autentikasi dokumen&#13;
PDF yang praktis, aman, dan efisien secara waktu dan komputasi.</mods:abstract><mods:classification authority="lcc">005 Pemrograman komputer, program dan data</mods:classification><mods:originInfo><mods:dateIssued encoding="iso8061">2026-06-22</mods:dateIssued></mods:originInfo><mods:originInfo><mods:publisher>Universitas AMIKOM Yogyakarta;Fakultas Ilmu Komputer</mods:publisher></mods:originInfo><mods:genre>Thesis</mods:genre></mets:xmlData></mets:mdWrap></mets:dmdSec><mets:amdSec ID="TMD_eprint_32815"><mets:rightsMD ID="rights_eprint_32815_mods"><mets:mdWrap MDTYPE="MODS"><mets:xmlData><mods:useAndReproduction>
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