Konferans bildirisi Açık Erişim
Coban, Mustafa; Karakoc, Ferhat; Ozen, Mehmet
<?xml version='1.0' encoding='UTF-8'?> <record xmlns="http://www.loc.gov/MARC21/slim"> <leader>00000nam##2200000uu#4500</leader> <datafield tag="245" ind1=" " ind2=" "> <subfield code="a">Cryptanalysis of QTL Block Cipher</subfield> </datafield> <datafield tag="024" ind1=" " ind2=" "> <subfield code="a">10.1007/978-3-319-55714-4_5</subfield> <subfield code="2">doi</subfield> </datafield> <controlfield tag="001">97989</controlfield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="a">user-tubitak-adresli-yayinlar</subfield> </datafield> <datafield tag="520" ind1=" " ind2=" "> <subfield code="a">QTL is an ultra-lightweight block cipher designed for extremely constrained devices. The cipher has two versions, QLT-64 and QTL-128 supporting key lengths of 64 and 128 bits, respectively. In this paper, we present the first third party cryptanalysis of QTL. We first introduce related key distinguishers for full versions of the cipher. We propose attacks on full QTL in single key model by using the related key distinguishers. With these attacks we are able to reduce the security of QTL-64 and QTL-128 by 16 bits. We also enumerate 2(48) weak keys and propose a practical key recovery attack on full QTL-64 for these keys. This attack requires 2(16) data and recovers the key in a time complexity of 2(32) encryptions. We also give some observations disprove designers' claims about number of active S-boxes and actual value of differential branch number.</subfield> </datafield> <datafield tag="650" ind1="1" ind2="7"> <subfield code="2">opendefinition.org</subfield> <subfield code="a">cc-by</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="u">TUBITAK BILGEM UEKAE, PK 74, TR-41470 Gebze, Kocaeli, Turkey</subfield> <subfield code="a">Karakoc, Ferhat</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="u">Sakarya Univ, Dept Math, Fac Arts & Sci, Adapazari, Sakarya, Turkey</subfield> <subfield code="a">Ozen, Mehmet</subfield> </datafield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="b">conferencepaper</subfield> <subfield code="a">publication</subfield> </datafield> <datafield tag="542" ind1=" " ind2=" "> <subfield code="l">open</subfield> </datafield> <datafield tag="100" ind1=" " ind2=" "> <subfield code="a">Coban, Mustafa</subfield> </datafield> <datafield tag="711" ind1=" " ind2=" "> <subfield code="a">LIGHTWEIGHT CRYPTOGRAPHY FOR SECURITY AND PRIVACY</subfield> </datafield> <datafield tag="260" ind1=" " ind2=" "> <subfield code="c">2017-01-01</subfield> </datafield> <controlfield tag="005">20210316135135.0</controlfield> <datafield tag="909" ind1="C" ind2="O"> <subfield code="o">oai:zenodo.org:97989</subfield> <subfield code="p">user-tubitak-adresli-yayinlar</subfield> </datafield> <datafield tag="856" ind1="4" ind2=" "> <subfield code="z">md5:6202e250397ab50702f06ab25860c793</subfield> <subfield code="s">126</subfield> <subfield code="u">https://aperta.ulakbim.gov.trrecord/97989/files/bib-f38d20d8-dc8c-4c7d-836d-675707b1d203.txt</subfield> </datafield> <datafield tag="540" ind1=" " ind2=" "> <subfield code="u">http://www.opendefinition.org/licenses/cc-by</subfield> <subfield code="a">Creative Commons Attribution</subfield> </datafield> </record>
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