diff --git a/network_app_samples/network_app_provider_sample/nef_upf_vendor_1.json b/network_app_samples/network_app_provider_sample/nef_upf_vendor_1.json
index 8cc2fa42c0ccad2f63b4ba09d6b636db5f8fd791..58ceb6fa03cecf99c22e18707da49c53534c7173 100755
--- a/network_app_samples/network_app_provider_sample/nef_upf_vendor_1.json
+++ b/network_app_samples/network_app_provider_sample/nef_upf_vendor_1.json
@@ -143,14 +143,14 @@
             "protocol": "HTTP_1_1",
             "dataFormat": "JSON",
             "securityMethods": [
-                "Oauth"
+                "OAUTH"
             ],
             "interfaceDescriptions": [
                 {
                     "ipv4Addr": "localhost",
                     "port": 8088,
                     "securityMethods": [
-                        "Oauth"
+                        "OAUTH"
                     ]
                 }
             ]
@@ -297,7 +297,7 @@
             "protocol": "HTTP_1_1",
             "dataFormat": "JSON",
             "securityMethods": [
-                "Oauth",
+                "OAUTH",
                 "PSK"
             ],
             "interfaceDescriptions": [
@@ -305,7 +305,7 @@
                     "ipv4Addr": "localhost",
                     "port": 8088,
                     "securityMethods": [
-                        "Oauth"
+                        "OAUTH"
                     ]
                 }
             ]
diff --git a/network_app_samples/network_app_provider_sample/nef_upf_vendor_2.json b/network_app_samples/network_app_provider_sample/nef_upf_vendor_2.json
index 5feec72a09b690011fb88feb452d9f30908d1391..5930f5c4a7b6c8638c90b67a4642cf70328f4587 100755
--- a/network_app_samples/network_app_provider_sample/nef_upf_vendor_2.json
+++ b/network_app_samples/network_app_provider_sample/nef_upf_vendor_2.json
@@ -127,7 +127,7 @@
             "protocol": "HTTP_1_1",
             "dataFormat": "JSON",
             "securityMethods": [
-                "Oauth",
+                "OAUTH",
                 "PSK"
             ],
             "interfaceDescriptions": [
@@ -135,7 +135,7 @@
                     "ipv4Addr": "localhost",
                     "port": 8888,
                     "securityMethods": [
-                        "Oauth"
+                        "OAUTH"
                     ]
                 }
             ]
@@ -283,14 +283,14 @@
             "protocol": "HTTP_1_1",
             "dataFormat": "JSON",
             "securityMethods": [
-                "Oauth"
+                "OAUTH"
             ],
             "interfaceDescriptions": [
                 {
                     "ipv4Addr": "localhost",
                     "port": 8888,
                     "securityMethods": [
-                        "Oauth"
+                        "OAUTH"
                     ]
                 }
             ]
@@ -421,7 +421,7 @@
             "protocol": "HTTP_1_1",
             "dataFormat": "JSON",
             "securityMethods": [
-                "Oauth",
+                "OAUTH",
                 "PSK"
             ],
             "interfaceDescriptions": [
@@ -429,7 +429,7 @@
                     "ipv4Addr": "localhost",
                     "port": 8888,
                     "securityMethods": [
-                        "Oauth"
+                        "OAUTH"
                     ]
                 }
             ]
diff --git a/opencapif_sdk/api_schema_translator.py b/opencapif_sdk/api_schema_translator.py
index 7e29a763c7d768da77ad3a676bba63d221139ae3..12519903c5df540483c3b15b12a8c5df686d7aa1 100644
--- a/opencapif_sdk/api_schema_translator.py
+++ b/opencapif_sdk/api_schema_translator.py
@@ -143,12 +143,12 @@ class api_schema_translator:
             ],
             "protocol": "HTTP_1_1",
             "dataFormat": "JSON",
-            "securityMethods": ["Oauth"],
+            "securityMethods": ["OAUTH"],
             "interfaceDescriptions": [
                 {
                     "ipv4Addr": ip,
                     "port": port,
-                    "securityMethods": ["Oauth"]
+                    "securityMethods": ["OAUTH"]
                 }
             ]
         }
diff --git a/opencapif_sdk/service_discoverer.py b/opencapif_sdk/service_discoverer.py
index d9131896ff0e0d17d9f44caa93d58df8af6cf10b..d3ccfd78e62d5cf101ac40bfb81aa8b96a8c9c22 100644
--- a/opencapif_sdk/service_discoverer.py
+++ b/opencapif_sdk/service_discoverer.py
@@ -225,21 +225,9 @@ class service_discoverer:
             api_id = self.invoker_capif_details["registered_security_contexes"][i]['api_id']
             for n in range(0, len(aef_profiles)):
                 aef_id = self.invoker_capif_details["registered_security_contexes"][i]['aef_profiles'][n]['aef_id']
-                ip = self.invoker_capif_details["registered_security_contexes"][i]['aef_profiles'][n]['ip']
-                port = self.invoker_capif_details["registered_security_contexes"][i]['aef_profiles'][n]['port']
+                
                 security_info = {
-                    "interfaceDetails": [
-                            {
-                                "ipv4Addr": ip,
-                                "ipv6Addr": "string",
-                                "fqdn": "string",
-                                "port": port,
-                                "securityMethods": [
-                                    "Oauth"
-                                ]
-                            }
-                        ],
-                    "prefSecurityMethods": ["Oauth"],
+                    "prefSecurityMethods": ["OAUTH"],
                     "authenticationInfo": "string",
                     "authorizationInfo": "string",
                     "aefId": aef_id,
@@ -298,9 +286,8 @@ class service_discoverer:
             api_id = self.invoker_capif_details["registered_security_contexes"][i]['api_id']
             for n in range(0, len(aef_profiles)):
                 aef_id = self.invoker_capif_details["registered_security_contexes"][i]['aef_profiles'][n]['aef_id']
-                
                 security_info = {
-                    "prefSecurityMethods": ["Oauth"],
+                    "prefSecurityMethods": ["OAUTH"],
                     "authenticationInfo": "string",
                     "authorizationInfo": "string",
                     "aefId": aef_id,
@@ -308,9 +295,8 @@ class service_discoverer:
                 }
                 payload["securityInfo"].append(security_info)
 
-            payload["securityInfo"].append(security_info)
-
         try:
+            print(payload)
             response = requests.put(url,
                                     json=payload,
                                     cert=(self.signed_key_crt_path,
diff --git a/samples/provider_api_description_sample.json b/samples/provider_api_description_sample.json
index 02d872f572fd2b2b245f883b15cd92ad77e2fcac..954426989c236f6c4c45a550e26c23eab4bbdce8 100755
--- a/samples/provider_api_description_sample.json
+++ b/samples/provider_api_description_sample.json
@@ -47,14 +47,14 @@
             "protocol": "HTTP_1_1",
             "dataFormat": "JSON",
             "securityMethods": [
-                "Oauth"
+                "OAUTH"
             ],
             "interfaceDescriptions": [
                 {
                     "ipv4Addr": "127.0.0.1",
                     "port": 8888,
                     "securityMethods": [
-                        "Oauth"
+                        "OAUTH"
                     ]
                 }
             ]
@@ -122,14 +122,14 @@
             "protocol": "HTTP_1_1",
             "dataFormat": "JSON",
             "securityMethods": [
-                "Oauth"
+                "OAUTH"
             ],
             "interfaceDescriptions": [
                 {
                     "ipv4Addr": "127.0.0.1",
                     "port": 8899,
                     "securityMethods": [
-                        "Oauth"
+                        "OAUTH"
                     ]
                 }
             ]
diff --git a/test/network_app_provider_api_spec_2.json b/test/network_app_provider_api_spec_2.json
index 0d54904cfb24ee79280504484ebfc7529d4f9fd1..94175bdcf3e1c29b993d30a91e99a1f4ced2b64f 100755
--- a/test/network_app_provider_api_spec_2.json
+++ b/test/network_app_provider_api_spec_2.json
@@ -47,7 +47,7 @@
             "protocol": "HTTP_1_1",
             "dataFormat": "JSON",
             "securityMethods": [
-                "Oauth",
+                "OAUTH",
                 "PSK"
             ],
             "interfaceDescriptions": [
@@ -55,7 +55,7 @@
                     "ipv4Addr": "127.0.0.1",
                     "port": 8888,
                     "securityMethods": [
-                        "Oauth"
+                        "OAUTH"
                     ]
                 }
             ]
@@ -123,14 +123,14 @@
             "protocol": "HTTP_1_1",
             "dataFormat": "JSON",
             "securityMethods": [
-                "Oauth"
+                "OAUTH"
             ],
             "interfaceDescriptions": [
                 {
                     "ipv4Addr": "127.0.0.1",
                     "port": 8899,
                     "securityMethods": [
-                        "Oauth"
+                        "OAUTH"
                     ]
                 }
             ]
@@ -181,7 +181,7 @@
             "protocol": "HTTP_1_1",
             "dataFormat": "JSON",
             "securityMethods": [
-                "Oauth",
+                "OAUTH",
                 "PSK"
             ],
             "interfaceDescriptions": [
@@ -189,7 +189,7 @@
                     "ipv4Addr": "127.0.0.1",
                     "port": 8888,
                     "securityMethods": [
-                        "Oauth"
+                        "OAUTH"
                     ]
                 }
             ]
diff --git a/test/network_app_provider_api_spec_3.json b/test/network_app_provider_api_spec_3.json
index 548b7408262c54241bb0fb81466339410e41d6bc..7b9fbe4f167620a2fb673fa02612b6af2b0b9364 100755
--- a/test/network_app_provider_api_spec_3.json
+++ b/test/network_app_provider_api_spec_3.json
@@ -47,7 +47,7 @@
             "protocol": "HTTP_1_1",
             "dataFormat": "JSON",
             "securityMethods": [
-                "Oauth",
+                "OAUTH",
                 "PSK"
             ],
             "interfaceDescriptions": [
@@ -55,7 +55,7 @@
                     "ipv4Addr": "127.0.0.1",
                     "port": 8888,
                     "securityMethods": [
-                        "Oauth"
+                        "OAUTH"
                     ]
                 }
             ]
@@ -123,14 +123,14 @@
             "protocol": "HTTP_1_1",
             "dataFormat": "JSON",
             "securityMethods": [
-                "Oauth"
+                "OAUTH"
             ],
             "interfaceDescriptions": [
                 {
                     "ipv4Addr": "127.0.0.1",
                     "port": 8899,
                     "securityMethods": [
-                        "Oauth"
+                        "OAUTH"
                     ]
                 }
             ]