diff --git a/keymaster/4.0/support/include/keymasterV4_0/keymaster_tags.h b/keymaster/4.0/support/include/keymasterV4_0/keymaster_tags.h
index 2f9f88b..73e03fb 100644
--- a/keymaster/4.0/support/include/keymasterV4_0/keymaster_tags.h
+++ b/keymaster/4.0/support/include/keymasterV4_0/keymaster_tags.h
@@ -329,6 +329,92 @@
     return accessTagValue(ttag, param);
 }
 
+inline bool operator==(const KeyParameter& a, const KeyParameter& b) {
+    if (a.tag != b.tag) {
+        return false;
+    }
+
+    switch (a.tag) {
+        /* Boolean tags */
+        case Tag::INVALID:
+        case Tag::CALLER_NONCE:
+        case Tag::INCLUDE_UNIQUE_ID:
+        case Tag::BOOTLOADER_ONLY:
+        case Tag::NO_AUTH_REQUIRED:
+        case Tag::ALLOW_WHILE_ON_BODY:
+        case Tag::ROLLBACK_RESISTANCE:
+        case Tag::RESET_SINCE_ID_ROTATION:
+        case Tag::TRUSTED_USER_PRESENCE_REQUIRED:
+            return true;
+
+        /* Integer tags */
+        case Tag::KEY_SIZE:
+        case Tag::MIN_MAC_LENGTH:
+        case Tag::MIN_SECONDS_BETWEEN_OPS:
+        case Tag::MAX_USES_PER_BOOT:
+        case Tag::OS_VERSION:
+        case Tag::OS_PATCHLEVEL:
+        case Tag::MAC_LENGTH:
+        case Tag::AUTH_TIMEOUT:
+            return a.f.integer == b.f.integer;
+
+        /* Long integer tags */
+        case Tag::RSA_PUBLIC_EXPONENT:
+        case Tag::USER_SECURE_ID:
+            return a.f.longInteger == b.f.longInteger;
+
+        /* Date-time tags */
+        case Tag::ACTIVE_DATETIME:
+        case Tag::ORIGINATION_EXPIRE_DATETIME:
+        case Tag::USAGE_EXPIRE_DATETIME:
+        case Tag::CREATION_DATETIME:
+            return a.f.dateTime == b.f.dateTime;
+
+        /* Bytes tags */
+        case Tag::APPLICATION_ID:
+        case Tag::APPLICATION_DATA:
+        case Tag::ROOT_OF_TRUST:
+        case Tag::UNIQUE_ID:
+        case Tag::ATTESTATION_CHALLENGE:
+        case Tag::ATTESTATION_APPLICATION_ID:
+        case Tag::ATTESTATION_ID_BRAND:
+        case Tag::ATTESTATION_ID_DEVICE:
+        case Tag::ATTESTATION_ID_PRODUCT:
+        case Tag::ATTESTATION_ID_SERIAL:
+        case Tag::ATTESTATION_ID_IMEI:
+        case Tag::ATTESTATION_ID_MEID:
+        case Tag::ATTESTATION_ID_MANUFACTURER:
+        case Tag::ATTESTATION_ID_MODEL:
+        case Tag::ASSOCIATED_DATA:
+        case Tag::NONCE:
+            return a.blob == b.blob;
+
+        /* Enum tags */
+        case Tag::PURPOSE:
+            return a.f.purpose == b.f.purpose;
+        case Tag::ALGORITHM:
+            return a.f.algorithm == b.f.algorithm;
+        case Tag::BLOCK_MODE:
+            return a.f.blockMode == b.f.blockMode;
+        case Tag::DIGEST:
+            return a.f.digest == b.f.digest;
+        case Tag::PADDING:
+            return a.f.paddingMode == b.f.paddingMode;
+        case Tag::EC_CURVE:
+            return a.f.ecCurve == b.f.ecCurve;
+        case Tag::BLOB_USAGE_REQUIREMENTS:
+            return a.f.keyBlobUsageRequirements == b.f.keyBlobUsageRequirements;
+        case Tag::USER_AUTH_TYPE:
+            return a.f.integer == b.f.integer;
+        case Tag::ORIGIN:
+            return a.f.origin == b.f.origin;
+        case Tag::HARDWARE_TYPE:
+            return a.f.hardwareType == b.f.hardwareType;
+    }
+
+    return false;
+}
+
 }  // namespace V4_0
 }  // namespace keymaster
 }  // namespace hardware
diff --git a/keymaster/4.0/vts/functional/keymaster_hidl_hal_test.cpp b/keymaster/4.0/vts/functional/keymaster_hidl_hal_test.cpp
index cb6ade2..31d6ad1 100644
--- a/keymaster/4.0/vts/functional/keymaster_hidl_hal_test.cpp
+++ b/keymaster/4.0/vts/functional/keymaster_hidl_hal_test.cpp
@@ -52,92 +52,6 @@
 namespace keymaster {
 namespace V4_0 {
 
-bool operator==(const KeyParameter& a, const KeyParameter& b) {
-    if (a.tag != b.tag) {
-        return false;
-    }
-
-    switch (a.tag) {
-        /* Boolean tags */
-        case Tag::INVALID:
-        case Tag::CALLER_NONCE:
-        case Tag::INCLUDE_UNIQUE_ID:
-        case Tag::BOOTLOADER_ONLY:
-        case Tag::NO_AUTH_REQUIRED:
-        case Tag::ALLOW_WHILE_ON_BODY:
-        case Tag::ROLLBACK_RESISTANCE:
-        case Tag::RESET_SINCE_ID_ROTATION:
-        case Tag::TRUSTED_USER_PRESENCE_REQUIRED:
-            return true;
-
-        /* Integer tags */
-        case Tag::KEY_SIZE:
-        case Tag::MIN_MAC_LENGTH:
-        case Tag::MIN_SECONDS_BETWEEN_OPS:
-        case Tag::MAX_USES_PER_BOOT:
-        case Tag::OS_VERSION:
-        case Tag::OS_PATCHLEVEL:
-        case Tag::MAC_LENGTH:
-        case Tag::AUTH_TIMEOUT:
-            return a.f.integer == b.f.integer;
-
-        /* Long integer tags */
-        case Tag::RSA_PUBLIC_EXPONENT:
-        case Tag::USER_SECURE_ID:
-            return a.f.longInteger == b.f.longInteger;
-
-        /* Date-time tags */
-        case Tag::ACTIVE_DATETIME:
-        case Tag::ORIGINATION_EXPIRE_DATETIME:
-        case Tag::USAGE_EXPIRE_DATETIME:
-        case Tag::CREATION_DATETIME:
-            return a.f.dateTime == b.f.dateTime;
-
-        /* Bytes tags */
-        case Tag::APPLICATION_ID:
-        case Tag::APPLICATION_DATA:
-        case Tag::ROOT_OF_TRUST:
-        case Tag::UNIQUE_ID:
-        case Tag::ATTESTATION_CHALLENGE:
-        case Tag::ATTESTATION_APPLICATION_ID:
-        case Tag::ATTESTATION_ID_BRAND:
-        case Tag::ATTESTATION_ID_DEVICE:
-        case Tag::ATTESTATION_ID_PRODUCT:
-        case Tag::ATTESTATION_ID_SERIAL:
-        case Tag::ATTESTATION_ID_IMEI:
-        case Tag::ATTESTATION_ID_MEID:
-        case Tag::ATTESTATION_ID_MANUFACTURER:
-        case Tag::ATTESTATION_ID_MODEL:
-        case Tag::ASSOCIATED_DATA:
-        case Tag::NONCE:
-            return a.blob == b.blob;
-
-        /* Enum tags */
-        case Tag::PURPOSE:
-            return a.f.purpose == b.f.purpose;
-        case Tag::ALGORITHM:
-            return a.f.algorithm == b.f.algorithm;
-        case Tag::BLOCK_MODE:
-            return a.f.blockMode == b.f.blockMode;
-        case Tag::DIGEST:
-            return a.f.digest == b.f.digest;
-        case Tag::PADDING:
-            return a.f.paddingMode == b.f.paddingMode;
-        case Tag::EC_CURVE:
-            return a.f.ecCurve == b.f.ecCurve;
-        case Tag::BLOB_USAGE_REQUIREMENTS:
-            return a.f.keyBlobUsageRequirements == b.f.keyBlobUsageRequirements;
-        case Tag::USER_AUTH_TYPE:
-            return a.f.integer == b.f.integer;
-        case Tag::ORIGIN:
-            return a.f.origin == b.f.origin;
-        case Tag::HARDWARE_TYPE:
-            return a.f.hardwareType == b.f.hardwareType;
-    }
-
-    return false;
-}
-
 bool operator==(const AuthorizationSet& a, const AuthorizationSet& b) {
     return a.size() == b.size() && std::equal(a.begin(), a.end(), b.begin());
 }