gogost

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Pure Go GOST cryptographic functions library.

GOST is GOvernment STandard of Russian Federation (and Soviet Union).

• GOST 28147-89 (RFC 5830) block cipher with ECB, CNT (CTR), CFB, MAC CBC (RFC 4357) modes of operation
• various 28147-89-related S-boxes included
• GOST R 34.11-94 hash function (RFC 5831)
• GOST R 34.11-2012 Стрибог (Streebog) hash function (RFC 6986)
• GOST R 34.10-2001 (RFC 5832) public key signature function
• GOST R 34.10-2012 (RFC 7091) public key signature function
• various 34.10 curve parameters included
• VKO GOST R 34.10-2001 key agreement function (RFC 4357)
• VKO GOST R 34.10-2012 key agreement function (RFC 7836)
• GOST R 34.12-2015 128-bit block cipher Кузнечик (Kuznechik) (RFC 7801)
• GOST R 34.13-2015 padding methods

Known problems:

• intermediate calculation values are not zeroed
• 34.10 is not time constant and slow

GoGOST is free software: see the file COPYING.LESSER for copying conditions.

GoGOST'es home page is: http://gogost.cypherpunks.ru/ Also available as I2P service: http://a5zmymxbjreuvbftgzmu64vcw2ssa3s44c2dn2jryxee6utn34qa.b32.i2p/ You can read about GOST algorithms more: http://gost.cypherpunks.ru/

Please send questions, bug reports and patches to https://lists.cypherpunks.ru/mailman/listinfo/gost mailing list. Announcements also go to this mailing list.

Development Git source code repository currently is located here: https://git.cypherpunks.ru/cgit.cgi/gogost.git/