Greetings! The cipher algorithm GOST has a set of substitution blocks as parameters of encryption/decryption. When we use the gost engine, we can specify the preferred paramset via environment variable or using the default from config file section.
In 2013 Russian official body has changed the default value of the blocks. So we need to use old default value for the old systems and new - for new ones. But the functions CMS_encrypt/PKCS7_encrypt now do not allow to configure the used cipher. Using the environment variable for the parameters management makes more difficult the writing and using multi-threading applications. Is it possible to modify the code of the OpenSSL for support of different parameters? For example, to provide functions like CMS_encrypt_ex/PKCS7_encrypt_ex with extra arguments. Or may be there is a more simple way to get the result necessary for our purposes. Thank you! -- SY, Dmitry Belyavsky
