Computer Forensics with Steganography in Evidence Investigations.pdf

文档介绍：Computer Forensics with Steganography in
Evidence Investigations
DOP Shiuh-Jeng Wang
„ Full Professor, 中央警察大學資訊管理系所
„中華民國資訊安全學會理事
„ Visiting Scholars at FSU and UF in USA, 2002, 2004
„ Academic tour for International Project Inspection at CMU in USA, 2007
„ Columnists of Domestic Information-tech Magazines,
網路通訊/iThome/網管人雜誌, 2002-2006, -2009
„ Director of ICCL at CPU
(Information Cryptology and Construction Lab.)
„ Chair of FROG in ICCL
„******@,
2009/12/20
INFORMATION CRYPTOLOGY & CONSTRUCTION LAB (ICCL) 1
Outline
„ Security
„ Steganography
„ ICCL-FROG
„ Forensics and Evidence
„ Research works
„ --- Forensics in Steganography Evidence Investigations
„ Conclusions
2009/12/20 INFORMATION CRYPTOLOGY & CONSTRUCTION LAB (ICCL) 2
C’est La Via
„ HAKUNA MATATA
„ work Security
„ Authentication and Forensics
„ work Forensics
2009/12/20 INFORMATION CRYPTOLOGY & CONSTRUCTION LAB (ICCL) 3
.
„ 資訊安全的目標()
機密性
(Confidentiality)
完整性可用性
(Integrity) (Availability)
2009/12/20 INFORMATION CRYPTOLOGY & CONSTRUCTION LAB (ICCL) 4
何謂偽裝術(What is Information Hiding)
大自然中
瞞天過海的偽裝術
„ /gate/big5/
m/video/VIDE1200049101682770
2009/12/20 INFORMATION CRYPTOLOGY & CONSTRUCTION LAB (ICCL) 5
自然界中的偽裝法
„在一個虎視眈眈的世界裏,偽裝必須天衣無縫,否則就毫無用處
2009/12/20 INFORMATION CRYPTOLOGY & CONSTRUCTION LAB (ICCL) 6
金庸打油詩(偽裝法)
捨身比武搏妹笑性狂難羈武通神
縱是孤苦一生傲亦師亦友身旁鵰
學琴定情濱於江棄私斬奸人稱俠
曲諧常笑傲江湖情堅逾石得仙侶
2009/12/20 INFORMATION CRYPTOLOGY & CONSTRUCTION LAB (ICCL) 7
不可視浮水印(資料嵌入)
偽裝圖
掩護圖(秘密隱藏後)
(秘密隱藏前)
掩護圖/偽裝圖(128x128pixel)
嵌入小說「哈利波特(Harry Potter)」
部分的內涵
2009/12/20 INFORMATION CRYPTOLOGY & CONSTRUCTION LAB (ICCL) 8
MY FROG and the FROG with you
2009/12/20 INFORMATION CRYPTOLOGY & CONSTRUCTION LAB (ICCL) 9
Cyber Crime
„ 電腦犯罪日漸嚴重(調查報告)
„ 調查報告美國在西元兩千年因電腦犯罪所產生
的財產損失即增加43% , 由$US265 million
增加為$US378 million (FBI案件統計)
„ 美國85% 的企業及政府機構曾偵測到計算機
系統遭到入侵
„ 資料來源:/icon/0105/0