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Status:

INFORMATIONAL

Updates:

RFC 5830

Authors:

V. Dolmatov, Ed.
D. Baryshkov

Stream:

INDEPENDENT

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DOI:  https://doi.org/10.17487/RFC8891

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Abstract

In addition to a new cipher with a block length of n=128 bits(referred to as "Kuznyechik" and described in RFC 7801), RussianFederal standard GOST R 34.12-2015 includes an updated version of theblock cipher with a block length of n=64 bits and key length of k=256bits, which is also referred to as "Magma". The algorithm is anupdated version of an older block cipher with a block length of n=64bits described in GOST 28147-89 (RFC 5830). This document is intendedto be a source of information about the updated version of the 64-bitcipher. It may facilitate the use of the block cipher in Internetapplications by providing information for developers and users of theGOST 64-bit cipher with the revised version of the cipher forencryption and decryption.

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.