On the Depth-Robustness and Cumulative Pebbling Cost of Argon2i
On the Depth-Robustness and Cumulative Pebbling Cost of Argon2i
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关于 Argon2i 的深度鲁棒性和累积卵石成本
DOI:
10.1007/978-3-319-70500-2_15
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Zhou, S.
中科院分区:
文献类型:
--
作者:
Blocki, J.;Zhou, S.
Argon2i is a data-independent memory hard function that won the password hashing competition. The password hashing algorithm has already been incorporated into several open source crypto libraries such as libsodium. In this paper we analyze the cumulative memory cost of computing Argon2i. On the positive side we provide a lower bound for Argon2i. On the negative side we exhibit an improved attack against Argon2i which demonstrates that our lower bound is nearly tight. In particular, we show that(1)An Argon2i DAG is-reducible.(2)The cumulative pebbling cost for Argon2i is at most. This improves upon the previous best upper bound of[AB17].(3)Argon2i DAG is-depth robust. By contrast, analysis of [ABP17a] only established that Argon2i was-depth robust.(4)The cumulative pebbling complexity of Argon2i is at least. This improves on the previous best bound of[ABP17a] and demonstrates that Argon2i has higher cumulative memory cost than competing proposals such as Catena or Balloon Hashing.We also show that Argon2i has highfractionaldepth-robustness which strongly suggests that data-dependent modes of Argon2 are resistant to space-time tradeoff attacks.
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影响因子:
0.6
作者:
W. Paul;R. Reischuk
通讯作者:
R. Reischuk
影响因子:
1.9
作者:
Leonardo C. Almeida;Ewerton R. Andrade;Paulo L. Barreto;M. Simplício
通讯作者:
M. Simplício
DOI:
10.1109/sfcs.1983.38
发表时间:
1983
期刊:
24th Annual Symposium on Foundations of Computer Science (sfcs 1983)
影响因子:
--
作者:
G. Schnitger
通讯作者:
G. Schnitger
DOI:
10.4230/lipics.itcs.2017.38
发表时间:
2017
期刊:
IACR Cryptol. ePrint Arch.
影响因子:
--
作者:
J. Alwen;Susanna F. de Rezende;Jakob Nordström;Marc Vinyals
通讯作者:
Marc Vinyals
DOI:
10.1016/0304-3975(82)90113-x
发表时间:
1981
期刊:
Theor. Comput. Sci.
影响因子:
--
作者:
G. Schnitger
通讯作者:
G. Schnitger