diff --git a/keystore/operation.cpp b/keystore/operation.cpp
index 2fde0da..e871f83 100644
--- a/keystore/operation.cpp
+++ b/keystore/operation.cpp
@@ -27,9 +27,10 @@
 sp<IBinder> OperationMap::addOperation(keymaster_operation_handle_t handle,
                                        const keymaster1_device_t* dev,
                                        sp<IBinder> appToken,
-                                       const keymaster_key_blob_t& key, bool pruneable) {
+                                       keymaster_key_characteristics_t* characteristics,
+                                       bool pruneable) {
     sp<IBinder> token = new BBinder();
-    mMap[token] = Operation(handle, dev, key, appToken);
+    mMap[token] = std::move(Operation(handle, dev, characteristics, appToken));
     if (pruneable) {
         mLru.push_back(token);
     }
@@ -42,7 +43,7 @@
 
 bool OperationMap::getOperation(sp<IBinder> token, keymaster_operation_handle_t* outHandle,
                                 const keymaster1_device_t** outDevice,
-                                keymaster_key_blob_t* key) {
+                                const keymaster_key_characteristics_t** outCharacteristics) {
     if (!outHandle || !outDevice) {
         return false;
     }
@@ -54,12 +55,8 @@
 
     *outHandle = entry->second.handle;
     *outDevice = entry->second.device;
-    if (key) {
-        key->key_material_size = entry->second.key.key_material_size;
-        uint8_t* material = new uint8_t[key->key_material_size];
-        memcpy(reinterpret_cast<void*>(material), entry->second.key.key_material,
-               key->key_material_size);
-        key->key_material = material;
+    if (outCharacteristics) {
+        *outCharacteristics = entry->second.characteristics.get();
     }
     return true;
 }
@@ -78,7 +75,6 @@
         return false;
     }
     sp<IBinder> appToken = entry->second.appToken;
-    delete[] entry->second.key.key_material;
     mMap.erase(entry);
     auto lruEntry = std::find(mLru.begin(), mLru.end(), token);
     if (lruEntry != mLru.end()) {
@@ -125,19 +121,14 @@
 
 OperationMap::Operation::Operation(keymaster_operation_handle_t handle_,
                                    const keymaster1_device_t* device_,
-                                   const keymaster_key_blob_t& key_,
+                                   keymaster_key_characteristics_t* characteristics_,
                                    sp<IBinder> appToken_)
     : handle(handle_),
       device(device_),
+      characteristics(characteristics_),
       appToken(appToken_) {
-          uint8_t* material = new uint8_t[key_.key_material_size];
-          memcpy(material, key_.key_material, key_.key_material_size);
-          key.key_material = material;
-          key.key_material_size = key_.key_material_size;
 }
 
-OperationMap::Operation::Operation() : handle(0), device(NULL), appToken(NULL) {
-    key.key_material = NULL;
-    key.key_material_size = 0;
+OperationMap::Operation::Operation() : handle(0), device(NULL), characteristics(), appToken(NULL) {
 }
 } // namespace android