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Lattice Blind Signatures with Forward Security

Journal Article


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Abstract


  • © 2020, Springer Nature Switzerland AG. Blind signatures play an important role in both electronic cash and electronic voting systems. Blind signatures should be secure against various attacks (such as signature forgeries). The work puts a special attention to secret key exposure attacks, which totally break digital signatures. Signatures that resist secret key exposure attacks are called forward secure in the sense that disclosure of a current secret key does not compromise past secret keys. This means that forward-secure signatures must include a mechanism for secret-key evolution over time periods. This paper gives a construction of the first blind signature that is forward secure. The construction is based on the SIS assumption in the lattice setting. The core techniques applied are the binary tree data structure for the time periods and the trapdoor delegation for the key-evolution mechanism.

Publication Date


  • 2020

Citation


  • Le, Q., Duong, H., Susilo, W., Tran, H., Trinh, V., Pieprzyk, J. & Plantard, T. (2020). Lattice Blind Signatures with Forward Security. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 12248 LNCS 3-22.

Scopus Eid


  • 2-s2.0-85089715813

Ro Full-text Url


  • https://ro.uow.edu.au/cgi/viewcontent.cgi?article=5367&context=eispapers1

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/4338

Number Of Pages


  • 19

Start Page


  • 3

End Page


  • 22

Volume


  • 12248 LNCS

Place Of Publication


  • Germany

Abstract


  • © 2020, Springer Nature Switzerland AG. Blind signatures play an important role in both electronic cash and electronic voting systems. Blind signatures should be secure against various attacks (such as signature forgeries). The work puts a special attention to secret key exposure attacks, which totally break digital signatures. Signatures that resist secret key exposure attacks are called forward secure in the sense that disclosure of a current secret key does not compromise past secret keys. This means that forward-secure signatures must include a mechanism for secret-key evolution over time periods. This paper gives a construction of the first blind signature that is forward secure. The construction is based on the SIS assumption in the lattice setting. The core techniques applied are the binary tree data structure for the time periods and the trapdoor delegation for the key-evolution mechanism.

Publication Date


  • 2020

Citation


  • Le, Q., Duong, H., Susilo, W., Tran, H., Trinh, V., Pieprzyk, J. & Plantard, T. (2020). Lattice Blind Signatures with Forward Security. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 12248 LNCS 3-22.

Scopus Eid


  • 2-s2.0-85089715813

Ro Full-text Url


  • https://ro.uow.edu.au/cgi/viewcontent.cgi?article=5367&context=eispapers1

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/4338

Number Of Pages


  • 19

Start Page


  • 3

End Page


  • 22

Volume


  • 12248 LNCS

Place Of Publication


  • Germany