OpenSSL for Windows download

OpenSSL is a robust, commercial-grade, and full-featured toolkit for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols. It is also a general-purpose cryptography library.

GOST Engine:

GOST 28147-89 - 64-bit block cipher with 256-bit key.
GOST R 34.11-94 - Message digest algorithm. 256-bit hash value.
GOST R 34.10-2001 - Digital signature algorithm.
GOST R 34.10-2012 - Digital signature algorithm.
GOST R 34.11-2012 - "Streebog" hash function 256 and 512-bit.
GOST R 34.12-2015 - "Magma" block cipher (new).
GOST R 34.12-2015 - "Kuznyechik" (Grasshopper) 128-bit block cipher.

Check also: https://sourceforge.net/projects/edgetk/
Visit: http://albanese.atwebpages.com

Features

Windows XP compatible
GOST Engine
SM2/SM3/SM4 Chinese National Standard (v1.1.1)
Bernstein's ChaCha20 stream cipher (v1.1.1)

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