GOST R 34.12-2015: Block Cipher "Magma"
RFC 8891, “GOST R 34.12-2015: Block Cipher "Magma"”, is an Informational document published in September 2020 by V. Dolmatov, D. Baryshkov. It updates RFC 5830. The canonical text is published by the RFC Editor.
Abstract
In addition to a new cipher with a block length of n=128 bits (referred to as "Kuznyechik" and described in RFC 7801), Russian Federal standard GOST R 34.12-2015 includes an updated version of the block cipher with a block length of n=64 bits and key length of k=256 bits, which is also referred to as "Magma". The algorithm is an updated version of an older block cipher with a block length of n=64 bits described in GOST 28147-89 (RFC 5830). This document is intended to be a source of information about the updated version of the 64-bit cipher. It may facilitate the use of the block cipher in Internet applications by providing information for developers and users of the GOST 64-bit cipher with the revised version of the cipher for encryption and decryption.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
The canonical text of RFC 8891 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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