
Explanation:

To generate a shared access signature (SAS) that meets the requirements, you should enable the following three settings:
Service: Blob
Allowed resource types: Container
Allowed permissions: Read and List
These settings will ensure that the SAS can only be used to enumerate and download blobs stored in container1, and not to perform any other operations on the storage account or the blobs. This follows the principle of least privilege, which means granting the minimum permissions necessary for a task.
You can use the Azure portal or Azure Storage Explorer to create a SAS token with these settings. For more information, see Create shared access signature (SAS) tokens for storage containers and blobs - Azure AI services | Microsoft Learn.