Linked Life Data

20588510

Source:http://linkedlifedata.com/resource/pubmed/id/20588510

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
13
pubmed:dateCreated
2010-6-30
pubmed:abstractText
We have shown that the application of double random phase encoding (DRPE) to biometrics enables the use of biometrics as cipher keys for binary data encryption. However, DRPE is reported to be vulnerable to known-plaintext attacks (KPAs) using a phase recovery algorithm. In this study, we investigated the vulnerability of DRPE using fingerprints as cipher keys to the KPAs. By means of computational experiments, we estimated the encryption key and restored the fingerprint image using the estimated key. Further, we propose a method for avoiding the KPA on the DRPE that employs the phase retrieval algorithm. The proposed method makes the amplitude component of the encrypted image constant in order to prevent the amplitude component of the encrypted image from being used as a clue for phase retrieval. Computational experiments showed that the proposed method not only avoids revealing the cipher key and the fingerprint but also serves as a sufficiently accurate verification system.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1094-4087
pubmed:author
pubmed:issnType
Electronic
pubmed:day
21
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
13772-81
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Known plaintext attack on double random phase encoding using fingerprint as key and a method for avoiding the attack.
pubmed:affiliation
Imaging Science and Engineering Laboratory, Tokyo Institute of Technology,Yokohama, Kanagawa, Japan. tashima@isl.titech.ac.jp
pubmed:publicationType
Journal Article