Effects of Pervasive Encryption on Operators
draft-mm-wg-effect-encrypt-25

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Network Working Group                                   K. Moriarty, Ed.
Internet-Draft                                                  Dell EMC
Intended status: Informational                            A. Morton, Ed.
Expires: September 16, 2018                                    AT&T Labs
                                                          March 15, 2018

              Effects of Pervasive Encryption on Operators
                     draft-mm-wg-effect-encrypt-25

Abstract

   Pervasive Monitoring (PM) attacks on the privacy of Internet users
   are of serious concern to both the user and the operator communities.
   RFC7258 discussed the critical need to protect users' privacy when
   developing IETF specifications and also recognized making networks
   unmanageable to mitigate PM is not an acceptable outcome; an
   appropriate balance is needed.  This document discusses current
   security and network operations and management practices that may be
   impacted by the shift to increased use of encryption to help guide
   protocol development in support of manageable and secure networks.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on September 16, 2018.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents

Moriarty & Morton      Expires September 16, 2018               [Page 1]
Internet-Draft            Effect of Encryption                March 2018

   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Additional Background on Encryption Changes . . . . . . .   4
     1.2.  Examples of Attempts to Preserve Functions  . . . . . . .   6
   2.  Network Service Provider Monitoring . . . . . . . . . . . . .   7
     2.1.  Passive Monitoring  . . . . . . . . . . . . . . . . . . .   8
       2.1.1.  Traffic Surveys . . . . . . . . . . . . . . . . . . .   8
       2.1.2.  Troubleshooting . . . . . . . . . . . . . . . . . . .   8
       2.1.3.  Traffic Analysis Fingerprinting . . . . . . . . . . .  11
     2.2.  Traffic Optimization and Management . . . . . . . . . . .  12
       2.2.1.  Load Balancers  . . . . . . . . . . . . . . . . . . .  12
       2.2.2.  Differential Treatment based on Deep Packet
               Inspection (DPI)  . . . . . . . . . . . . . . . . . .  14
       2.2.3.  Network Congestion Management . . . . . . . . . . . .  15
       2.2.4.  Performance-enhancing Proxies . . . . . . . . . . . .  15
       2.2.5.  Caching and Content Replication Near the Network Edge  16
       2.2.6.  Content Compression . . . . . . . . . . . . . . . . .  17
       2.2.7.  Service Function Chaining . . . . . . . . . . . . . .  18
     2.3.  Content Filtering, Network Access, and Accounting . . . .  18
       2.3.1.  Content Filtering . . . . . . . . . . . . . . . . . .  19
       2.3.2.  Network Access and Data Usage . . . . . . . . . . . .  20
       2.3.3.  Application Layer Gateways  . . . . . . . . . . . . .  21
       2.3.4.  HTTP Header Insertion . . . . . . . . . . . . . . . .  22
   3.  Encryption in Hosting and Application SP Environments . . . .  22
     3.1.  Management Access Security  . . . . . . . . . . . . . . .  22
       3.1.1.  Customer Access Monitoring  . . . . . . . . . . . . .  23
       3.1.2.  SP Content Monitoring of Applications . . . . . . . .  24
     3.2.  Hosted Applications . . . . . . . . . . . . . . . . . . .  26
       3.2.1.  Monitoring Managed Applications . . . . . . . . . . .  26
       3.2.2.  Mail Service Providers  . . . . . . . . . . . . . . .  27
     3.3.  Data Storage  . . . . . . . . . . . . . . . . . . . . . .  27
       3.3.1.  Object-level Encryption . . . . . . . . . . . . . . .  27
       3.3.2.  Disk Encryption, Data at Rest . . . . . . . . . . . .  28