Gost2814789_cfb64_encrypt
Gost2814789_cfb64_encrypt(in, out, chunk, &((EVP_GOST2814789_CTX *)ctx->cipher_data)->ks, ctx->iv, &ctx->num, ctx->encrypt);
Gost2814789_cfb64_encrypt(outputKey, outputKey, 32, ctx, S,
void Gost2814789_cfb64_encrypt(const unsigned char *in, unsigned char *out,