arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.08060cs.CR
收藏

高效图像文件格式(HEIF)的取证注意事项

Forensic Considerations for the High Efficiency Image File Format (HEIF)

Sean McKeown, Gordon Russell

摘要:

高效文件格式(HEIF)于2017年被苹果公司采用,作为他们从相机应用程序中捕获图像的最佳方式,最近Galaxy S10等Android设备提供了支持。该格式的定位是取代JPEG作为事实上的图像压缩文件类型,吹捧许多现代功能和更好的压缩比超过老化的标准。然而,尽管世界各地已有数百万台设备能够生成HEIF文件,但数字取证研究并没有对该格式给予太多关注。由于HEIF是一种复杂的容器格式,与传统的静态图片格式有很大不同,这使得法医从业者面临潜在的错误处理证据的风险。本文描述了HEIF格式的法医相关功能,包括可用于隐藏数据或在调查中引起问题的功能,同时还提供了对该格式软件支持状态的评论。最后,建议目前的最佳做法,讨论之前的要求,法医强大的HEIF分析工具。

英文摘要:

The High Efficiency File Format (HEIF) was adopted by Apple in 2017 as their favoured means of capturing images from their camera application, with Android devices such as the Galaxy S10 providing support more recently. The format is positioned to replace JPEG as the de facto image compression file type, touting many modern features and better compression ratios over the aging standard. However, while millions of devices across the world are already able to produce HEIF files, digital forensics research has not given the format much attention. As HEIF is a complex container format, much different from traditional still picture formats, this leaves forensics practitioners exposed to risks of potentially mishandling evidence. This paper describes the forensically relevant features of the HEIF format, including those which could be used to hide data, or cause issues in an investigation, while also providing commentary on the state of software support for the format. Finally, suggestions for current best-practice are provided, before discussing the requirements of a forensically robust HEIF analysis tool.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑