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...