2 files changed, 16 insertions, 1 deletions
diff --git a/django/contrib/postgres/functions.py b/django/contrib/postgres/functions.py
index d17f9cb37d..36b32e0751 100644
--- a/django/contrib/postgres/functions.py
+++ b/django/contrib/postgres/functions.py
@@ -1,4 +1,13 @@
-from django.db.models import DateTimeField, Func
+from django.db.models import DateTimeField, Func, UUIDField
+
+
+class RandomUUID(Func):
+    template = 'GEN_RANDOM_UUID()'
+
+    def __init__(self, output_field=None, **extra):
+        if output_field is None:
+            output_field = UUIDField()
+        super().__init__(output_field=output_field, **extra)
 
 
 class TransactionNow(Func):
diff --git a/django/contrib/postgres/operations.py b/django/contrib/postgres/operations.py
index 7544e38613..8ff043b5a9 100644
--- a/django/contrib/postgres/operations.py
+++ b/django/contrib/postgres/operations.py
@@ -35,6 +35,12 @@ class CITextExtension(CreateExtension):
         self.name = 'citext'
 
 
+class CryptoExtension(CreateExtension):
+
+    def __init__(self):
+        self.name = 'pgcrypto'
+
+
 class HStoreExtension(CreateExtension):
 
     def __init__(self):