The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Este artigo descreve uma extensão do XEX* modo, que é um método para converter uma cifra de bloco em uma cifra de bloco ajustável marcada, uma noção introduzida por Rogaway em 2004 como uma extensão da cifra de bloco ajustável por Liskov et al. Nossa extensão atribui uma função de criptografia adicional ao XEX original*, que tem algumas limitações, mas é um pouco mais rápido que a criptografia implementada pelo XEX*. Provamos a segurança do nosso esquema de uma forma geral, onde a função offset, componente chave da nossa construção, não se restringe àquela utilizada pelo XEX*. Também disponibilizamos algumas aplicações do nosso resultado, em especial ao OCB 2.0, uma criptografia autenticada baseada em XEX*.
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Kazuhiko MINEMATSU, Toshiyasu MATSUSHIMA, "Generalization and Extension of XEX* Mode" in IEICE TRANSACTIONS on Fundamentals,
vol. E92-A, no. 2, pp. 517-524, February 2009, doi: 10.1587/transfun.E92.A.517.
Abstract: This paper describes an extension of XEX* mode, which is a method to convert a block cipher into a tagged tweakable block cipher, a notion introduced by Rogaway in 2004 as an extension of the tweakable block cipher by Liskov et al. Our extension attaches an additional encryption function to the original XEX*, which has some limitation but is slightly faster than the encryption implemented by XEX*. We prove our scheme's security in a general form, where the offset function, a key component of our construction, is not restricted to the one used by XEX*. We also provide some applications of our result, in particular to OCB 2.0, an authenticated encryption based on XEX*.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E92.A.517/_p
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@ARTICLE{e92-a_2_517,
author={Kazuhiko MINEMATSU, Toshiyasu MATSUSHIMA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Generalization and Extension of XEX* Mode},
year={2009},
volume={E92-A},
number={2},
pages={517-524},
abstract={This paper describes an extension of XEX* mode, which is a method to convert a block cipher into a tagged tweakable block cipher, a notion introduced by Rogaway in 2004 as an extension of the tweakable block cipher by Liskov et al. Our extension attaches an additional encryption function to the original XEX*, which has some limitation but is slightly faster than the encryption implemented by XEX*. We prove our scheme's security in a general form, where the offset function, a key component of our construction, is not restricted to the one used by XEX*. We also provide some applications of our result, in particular to OCB 2.0, an authenticated encryption based on XEX*.},
keywords={},
doi={10.1587/transfun.E92.A.517},
ISSN={1745-1337},
month={February},}
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TY - JOUR
TI - Generalization and Extension of XEX* Mode
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 517
EP - 524
AU - Kazuhiko MINEMATSU
AU - Toshiyasu MATSUSHIMA
PY - 2009
DO - 10.1587/transfun.E92.A.517
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E92-A
IS - 2
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - February 2009
AB - This paper describes an extension of XEX* mode, which is a method to convert a block cipher into a tagged tweakable block cipher, a notion introduced by Rogaway in 2004 as an extension of the tweakable block cipher by Liskov et al. Our extension attaches an additional encryption function to the original XEX*, which has some limitation but is slightly faster than the encryption implemented by XEX*. We prove our scheme's security in a general form, where the offset function, a key component of our construction, is not restricted to the one used by XEX*. We also provide some applications of our result, in particular to OCB 2.0, an authenticated encryption based on XEX*.
ER -