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I am making this work from August 1998 available for historical reasons. It has been cited as an ``unpublished manuscript'' more than two dozen times over the years -- even though it has not been publ...
Defined in the standard GOST 28147-89, GOST is a Soviet and Russian government standard symmetric-key block cipher. GOST has the 64-bit block size and a key length of 256 bits. It is a Feistel network...
Authenticated encryption algorithms protect both the confidentiality and integrity of messages in a single processing pass. In this note we show how to utilize the L◦P ◦S transform of th...
The GOST hash function family has served as the new Russian national hash standard (GOST R 34.11-2012) since January 1, 2013, and it has two members, i.e., GOST- 256 and GOST-512 which correspond to...
We study the possibility of GOST block cipher modification in such way, that it would resist Isobe and Dinur-Dunkelman-Shamir attacks, and, at the same time, would be still lightweight-friendly.
In this paper, we present improved preimage attacks on the reduced-round GOST hash function family, which serves as the new Russian hash standard, with the aid of techniques such as the rebound atta...
GOST R is the hash function standard of Russia. This paper presents some cryptanalytic results on GOST R. Using the rebound attack technique, we achieve collision attacks on the reduced round compress...
New GOST R 34.11-2012 standard has been recently selected by the Russian government to replace the old one. The algorithm is based on the hash function Stribog introduced in 2010. The high-level struc...
GOST 28147-89 is a well-known block cipher and the official encryption standard of the Russian Federation. Its large key size of 256 bits at a particularly low implementation cost make GOST a plausibl...
This paper investigates a new approach to analyze symmetric ciphers by dividing the algorithms to consecutive sub-ciphers and then evaluating them separately. This attack is suitable for ciphers with ...
This paper investigates a new approach to analyze symmetric ciphers by dividing the algorithms to consecutive sub-ciphers and then evaluating them separately. This attack is suitable for ciphers with ...
This paper investigates a new approach to analyze symmetric ciphers by dividing the algorithms to consecutive sub-ciphers and then evaluating them separately. This attack is suitable for ciphers with ...
GOST 28147-89 is a well-known block cipher and the official encryption standard of the Russian Federation. Its large key size of 256 bits at a particularly low implementation cost make GOST a plausibl...
GOST 28147-89 is a well-known block cipher and the official encryption standard of the Russian Federation. Its large key size of 256 bits at a particularly low implementation cost make GOST a plausibl...
GOST is a well known block cipher which was developed in the Soviet Union during the 1970's as an alternative to the US-developed DES. In spite of considerable cryptanalytic effort, until very recentl...

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