rollback

libi2pd/Family.cpp

@@ -136,29 +136,34 @@ namespace data
 		if (ret)
 		{
 			SSL * ssl = SSL_new (ctx);
-			auto pkey = SSL_get_privatekey (ssl);
-			if (pkey)
+			EVP_PKEY * pkey = SSL_get_privatekey (ssl);
+			EC_KEY * ecKey = EVP_PKEY_get1_EC_KEY (pkey);
+			if (ecKey)
+			{
+				auto group = EC_KEY_get0_group (ecKey);
+				if (group)
+				{
+					int curve = EC_GROUP_get_curve_name (group);
+					if (curve == NID_X9_62_prime256v1)
 					{
-				uint8_t buf[100], signature[128];
+						uint8_t signingPrivateKey[32], buf[50], signature[64];
+						i2p::crypto::bn2buf (EC_KEY_get0_private_key (ecKey), signingPrivateKey, 32);
+						i2p::crypto::ECDSAP256Signer signer (signingPrivateKey);
 						size_t len = family.length ();
 						memcpy (buf, family.c_str (), len);
 						memcpy (buf + len, (const uint8_t *)ident, 32);
 						len += 32;
-				size_t l = 128;
-				EVP_MD_CTX * mdctx = EVP_MD_CTX_create ();
-				EVP_DigestSignInit (mdctx, NULL, NULL, NULL, pkey);
-				if (EVP_DigestSign (mdctx, signature, &l, buf, len))
-				{
-					len = Base64EncodingBufferSize (l);
+						signer.Sign (buf, len, signature);
+						len = Base64EncodingBufferSize (64);
 						char * b64 = new char[len+1];
-					len = ByteStreamToBase64 (signature, l, b64, len);
+						len = ByteStreamToBase64 (signature, 64, b64, len);
 						b64[len] = 0;
 						sig = b64;
 						delete[] b64;
 					}
 					else
-					LogPrint (eLogError, "Family: signing failed");
-				EVP_MD_CTX_destroy (mdctx);
+						LogPrint (eLogWarning, "Family: elliptic curve ", curve, " is not supported");
+				}
 			}
 			SSL_free (ssl);
 		}