GOST (Kuznyechik Cipher) Core

This IP core implements the Kuznyechik cipher of the Russian Federation GOST 3412-2015 standard (also available in English as RFC 7801) which replaces the previous 'Magma' algorithm of the GOST 28147-89 standard. The Kuznyechik cipher is structurally similar to AES and has a similar interface.

GOST is of interest for products which must inter-operate with Russian equipment and as a second algorithm to be used in conjunction with AES in applications where it is desired that encrypted data will remain secure even if an attack on AES is discovered or in applications where it is desired to be able to swap-out AES for another algorithm to protect new data should an attack on AES be discovered. For most applications Algotronix recommends the use of AES on both security and performance grounds.



Algotronix can also provide a design service to extend or tailor the core to meet the specific requirements of your application.

• Supports all cipher modes defined in NIST SP800-38A: ECB, CBC, CFB1, CFB8, CFB128, OFB and CTR.
• Supports 256 bit keys
• Targets all modern FPGA families from Xilinx.
• Compile as Encryptor, Decryptor or Encryptor/Decryptor
• Supplied as easily customizable portable VHDL to allow customers to conduct their own code review in high-security applications. Compilation options to include only required features and save area
• Supplied with comprehensive test bench.

• Highly secure systems using multiple cipher algorithms to protect against one algorithm becoming compromised
• Communications systems which must interoperate with Russian equipment

• VHDL source code including testbench.