Open AccessIntegrity and Authenticity of Digital Images by Digital Forensic Analysis of Metadata
Author(s) -
Lizbardo Orellano Benancio,
Análisis Digital Forense del Ministerio Público Análisis Digital Forense,
Ricardo Muñoz Canales,
Paolo Rodriguez Leon,
Enrique Lee Huamaní
Publication year - 2021
Publication title -
international journal emerging technology and advanced engineering
Language(s) - English
Resource type - Journals
ISSN - 2250-2459
DOI - 10.46338/ijetae0921_05
Subject(s) - metadata , computer science , hash function , digital forensics , digital image , information retrieval , metadata repository , image file formats , world wide web , software , image (mathematics) , image processing , computer security , artificial intelligence , operating system
—During various court hearings, the thesis that every authentic digital file has precise metadata of its creation date was questioned.In this way, the problem was raised which indicates, if the metadata of a digital file (Image) whose label records the date of creation by the recording device of a digital image file are accurate and reliable.For this reason, during the forensic analysis carried out in this work, a record of the metadata of five (05) digital image files from known sources is shown and where their characteristics have been detailed, in addition a record of the metadata of the images used that were later manipulated with image editing software with which metadata comparisons were made to show the labels that suffered modifications in their content.Finally, the obtaining of HASH code with the SHA - 256 algorithm is shown, for digital assurance, of the edited and original files whose comparison allows observing the changes in the content at a binary level. Keywords—Crime; Cybercrime; Digital Image; HASH; Metadata