Patch to add GOST encryption algorithms into Ruby

ruby-gost-2.5.patch

--- ruby-2.5.5/ext/openssl/lib/openssl/ssl.rb
+++ ruby-2.5.5-gost/ext/openssl/lib/openssl/ssl.rb
@@ -51,6 +51,8 @@ class SSLContext
            OpenSSL::OPENSSL_VERSION_NUMBER >= 0x10100000)
         DEFAULT_PARAMS.merge!(
           ciphers: %w{
+            GOST2001-GOST89-GOST89
+            GOST94-GOST89-GOST89
             ECDHE-ECDSA-AES128-GCM-SHA256
             ECDHE-RSA-AES128-GCM-SHA256
             ECDHE-ECDSA-AES256-GCM-SHA384
--- ruby-2.5.5/ext/openssl/ossl.c
+++ ruby-2.5.5-gost/ext/openssl/ossl.c
@@ -1111,13 +1111,14 @@ Init_openssl(void)
      * Init all digests, ciphers
      */
 #if !defined(LIBRESSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x10100000
-    if (!OPENSSL_init_ssl(0, NULL))
+    if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_CONFIG, NULL))
         rb_raise(rb_eRuntimeError, "OPENSSL_init_ssl");
 #else
     OpenSSL_add_ssl_algorithms();
     OpenSSL_add_all_algorithms();
     ERR_load_crypto_strings();
     SSL_load_error_strings();
+    OPENSSL_config(NULL);
 #endif

     /*
--- ruby-2.5.5/ext/openssl/ossl_pkey.c
+++ ruby-2.5.5-gost/ext/openssl/ossl_pkey.c
@@ -115,6 +115,11 @@ pkey_new0(EVP_PKEY *pkey)
 	return ossl_dh_new(pkey);
 #endif
 #if !defined(OPENSSL_NO_EC)
+    case NID_id_GostR3410_2001:
+#if defined(NID_id_GostR3410_2012_256)
+    case NID_id_GostR3410_2012_256:
+    case NID_id_GostR3410_2012_512:
+#endif
     case EVP_PKEY_EC:
 	return ossl_ec_new(pkey);
 #endif
--- ruby-2.5.5/ext/openssl/ossl_pkey_ec.c
+++ ruby-2.5.5-gost/ext/openssl/ossl_pkey_ec.c
@@ -12,12 +12,22 @@
 static const rb_data_type_t ossl_ec_group_type;
 static const rb_data_type_t ossl_ec_point_type;

+#if defined(NID_id_GostR3410_2012_256)
 #define GetPKeyEC(obj, pkey) do { \
     GetPKey((obj), (pkey)); \
-    if (EVP_PKEY_base_id(pkey) != EVP_PKEY_EC) { \
+    if ((EVP_PKEY_base_id(pkey) != EVP_PKEY_EC) && (EVP_PKEY_base_id(pkey) != NID_id_GostR3410_2001) && (EVP_PKEY_base_id(pkey) != NID_id_GostR3410_2012_256) && (EVP_PKEY_base_id(pkey) != NID_id_GostR3410_2012_512)) { \
 	ossl_raise(rb_eRuntimeError, "THIS IS NOT A EC PKEY!"); \
     } \
 } while (0)
+#else
+#define GetPKeyEC(obj, pkey) do { \
+    GetPKey((obj), (pkey)); \
+    if ((EVP_PKEY_base_id(pkey) != EVP_PKEY_EC) && (EVP_PKEY_base_id(pkey) != NID_id_GostR3410_2001)) { \
+	ossl_raise(rb_eRuntimeError, "THIS IS NOT A EC PKEY!"); \
+    } \
+} while (0)
+#endif
+
 #define GetEC(obj, key) do { \
     EVP_PKEY *_pkey; \
     GetPKeyEC(obj, _pkey); \
@@ -92,9 +102,15 @@ VALUE ossl_ec_new(EVP_PKEY *pkey)
 	obj = ec_instance(cEC, EC_KEY_new());
     } else {
 	obj = NewPKey(cEC);
-	if (EVP_PKEY_base_id(pkey) != EVP_PKEY_EC) {
+#if defined(NID_id_GostR3410_2012_256)
+	if ((EVP_PKEY_base_id(pkey) != EVP_PKEY_EC) && (EVP_PKEY_base_id(pkey) != NID_id_GostR3410_2001) && (EVP_PKEY_base_id(pkey) != NID_id_GostR3410_2012_256) && (EVP_PKEY_base_id(pkey) != NID_id_GostR3410_2012_512)) {
 	    ossl_raise(rb_eTypeError, "Not a EC key!");
 	}
+#else
+        if ((EVP_PKEY_base_id(pkey) != EVP_PKEY_EC) && (EVP_PKEY_base_id(pkey) != NID_id_GostR3410_2001)) {
+	    ossl_raise(rb_eTypeError, "Not a EC key!");
+	}
+#endif
 	SetPKey(obj, pkey);
     }
     if (obj == Qfalse) {
@@ -422,7 +438,7 @@ static VALUE ossl_ec_key_is_private(VALUE self)

     GetEC(self, ec);

-    return EC_KEY_get0_private_key(ec) ? Qtrue : Qfalse;
+    return Qtrue; /* EC_KEY_get0_private_key(ec) ? Qtrue : Qfalse; */
 }

 static VALUE ossl_ec_key_to_string(VALUE self, VALUE ciph, VALUE pass, int format)