1、 ASC X9, Inc. 2017 All rights reserved American National Standard for Financial Services ANSI X9.692017 Framework for Key Management Extensions Developed by Accredited Standards Committee X9, Incorporated Financial Industry Standards Date Approved: September 19, 2017 American National Standards Inst
2、itute American National Standards, Technical Reports and Guides developed through the Accredited Standards Committee X9, Inc., are copyrighted. Copying these documents for personal or commercial use outside X9 membership agreements is prohibited without express written permission of the Accredited S
3、tandards Committee X9, Inc. For additional information please contact ASC X9, Inc., 275 West Street, Suite 107, Annapolis, MD 21401. ANSI X9.692017 2 ASC X9, Inc. 2017 All rights reserved Contents Page Forword . 4 Introduction . 5 1 Scope 14 2 Normative references 14 3 Terms, symbols and abbreviated
4、 terms 15 4 Application . 15 4.1 General . 17 4.2 The Use of Constructive Key Management 17 4.3 The Use of Key Usage Control Vector . 17 4.4 System Algorithm and System Key . 17 5 Constructive Key Management 17 5.1 Overview . 17 5.2 CKM Administration 19 5.2.1 Credentials . 19 5.2.2 Splits . 19 5.3
5、Token Distribution . 20 5.3.1 Workstation 20 5.3.2 Token 20 5.4 Key Creation. 20 5.4.1 Key Component Selection 21 5.4.2 Key Combiner 21 5.4.3 Key Reconstruction . 21 6 Key Usage Control 22 6.1 Overview . 22 6.2 Key Binding Methods 23 6.2.1 Binding Method 1 23 6.2.2 Binding Method 2 23 6.2.3 Binding
6、Method 3 24 6.2.4 Binding Method 4 24 6.2.5 Binding Method 5 24 6.2.6 Binding Method 6 25 Annex A (informative) Example Key Usage Vector Formats 26 A.1 General . 26 A.2 Examples 26 Bibliography 29 ANSI X9.692017 ASC X9, Inc. 2017 All rights reserved 3 Figures Figure 1 - Token Distribution . 18 Figur
7、e 2 - Combiner Function 21 Figure 3 - Key Usage Vector Fields . 23 ANSI X9.692017 4 ASC X9, Inc. 2017 All rights reserved Foreword Approval of an American National Standard requires verification by ANSI that the requirements for due process, consensus, and other criteria for approval have been met b
8、y the standards developer. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensu
9、s requires that all views and objections be considered, and that a concerted effort be made toward their resolution. The use of American National Standards is completely voluntary; their existence does not in any respect preclude anyone, whether he has approved the standards or not from manufacturin
10、g, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. The American National Standards Institute does not develop standards and will in no circumstances give an interpretation of any American National Standard. Moreover, no person shall have the right
11、or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Requests for interpretation should be addressed to the secretariat or sponsor whose name appears on the title page of this standard. CAUTION NOTICE: This American Nation
12、al Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of approval. Published by Accredited Standards Committee X9, Incorporate
13、d Financial Industry Standards 275 West Street, Suite 107 Annapolis, MD 21401 USA X9 Online http:/www.x9.org Copyright 2017 ASC X9, Inc. All rights reserved. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without prior written permission of
14、 the publisher. Published in the United States of America. ANSI X9.692017 ASC X9, Inc. 2017 All rights reserved 5 Introduction This Standard is concerned with symmetric key systems in which the encrypting key and decrypting key are identical. The security and reliability of any process based on a sy
15、mmetric cryptographic algorithm is directly dependent on the protection afforded to the secret quantity, called the key. Thus, no matter how strong the algorithm, the system is only as secure as its key management method. This Standard defines two specific key management methods for controlling and
16、handling keys, called (1) Constructive Key Management and (2) Key Usage Control. Each method can be used independently; or the methods can be used in combination. However, the combined use of the methods is highly recommended by the ASC X9 Subcommittee responsible for this Standard. Each method is d
17、escribed in a separate section of the Standard. The section on CONSTRUCTIVE KEY MANAGEMENT, systematizes key creation, implementing “dual control” or “split knowledge” by using key components to construct the final working key. This working key may be used in several ways including as a session key,
18、 for a store-and-forward (i.e. e-mail) application, and for file encryption applications, such as archiving, or protecting filed information until needed again by the user. Other applications are also possible. Until now, this practice of split knowledge key creation has been used mainly to transpor
19、t key parts into systems where “master keys” were used to protect keys in storage, and to recover the working keys for a current application. With the methodology of this Standard, a working key will be created as needed for a specific encryption process, and re-created when needed to decrypt the ob
20、ject. Depending on the application, the key may be saved or destroyed after each use. The working key is never transmitted; the application program only knows it while it is in use. The section on KEY USAGE CONTROL, allows the creator of a key to specify the allowed uses of the key. For example, key
21、 usage control information can be used to distinguish key types (data, PIN, or key-encrypting). The type “data key” can be further sub-divided to distinguish data privacy keyskeys used to encrypt and decrypt datafrom Message Authentication Code (MAC) keys -keys used to protect the integrity of data.
22、 The method attaches or binds a “key usage vector” to each generated key, for the life of the key, and is used by the system to ensure that keys are used properly. In short, the key usage vector prevents abuses and attacks against the key. The key usage vector can be used to protect keys stored with
23、in a single system, or to protect keys transmitted from one system to another. This Standard is algorithm independent, and as new cryptographic algorithms with perhaps longer key lengths than currently in use are developed and adopted by the Financial Community this Standard will still apply. This s
24、tandard includes a Constructive Key Management working key for a symmetric encryption capability. Studies are surfacing that asymmetrical key can be subject to Quantum Computing attack.1 NOTE The users attention is called to the possibility that compliance with this standard may require use of an in
25、vention covered by patent rights. By publication of this standard, no position is taken with respect to the validity of this claim or of any patent rights in connection therewith. The patent holder has, however, filed a statement of willingness to grant a license under these rights on reasonable and
26、 nondiscriminatory terms and conditions to applicants desiring to obtain such a license. Details may be obtained from the standards developer. 1 NISTIR 8105 Report on Post-Quantum Cryptography Feb 2016 ANSI X9.692017 6 ASC X9, Inc. 2017 All rights reserved Suggestions for the improvement or revision
27、 of this Standard are welcome. They should be sent to the X9 Committee Secretariat, Accredited Standards Committee X9, Inc., Financial Industry Standards, 275 West Street, Suite 107 Annapolis, MD 21401 USA. This Standard was processed and approved for submittal to ANSI by the Accredited Standards Co
28、mmittee on Financial Services, X9. Committee approval of the Standard does not necessarily imply that all the committee members voted for its approval. The X9 committee had the following members: Roy DeCicco, X9 Chairman Angela Hendershott, X9 Vice-Chairman Steve Stevens, Executive Director Janet Bu
29、sch, Program Manager Organization Represented . Representative ACI Worldwide . Doug Grote ACI Worldwide . Dan Kinney American Bankers Association . Diane Poole American Express Company . David Moore Bank of America . Daniel Welch Bank of New York Mellon . Kevin Barnes Blackhawk Network . Anthony Red
30、ondo Bloomberg LP Corby Dear Capital One . Marie LaQuerre Citigroup, Inc. . Karla McKenna CLS Bank Ram Komarraju Conexxus, Inc. . Michael Davis Conexxus, Inc. . Gray Taylor CUSIP Service Bureau Gerard Faulkner Delap LLP Andrea Beatty Delap LLP Darlene Kargel Deluxe Corporation . Angela Hendershott D
31、iebold Nixdorf Bruce Chapa Discover Financial Services Michelle Zhang eCurrency . David Wen Federal Reserve Bank Mary Hughes Federal Reserve Bank Janet LaFrence FIS . Stephen Gibson-Saxty Fiserv . Dan Otten FIX Protocol Ltd - FPL Jim Northey Futurex . Ryan Smith Gilbarco . Bruce Welch Harland Clarke
32、 . John McCleary Hewlett Packard Susan Langford IBM Corporation Todd Arnold Independent Community Bankers of America . Cary Whaley Ingenico Rob Martin ISITC . Jason Brasile J.P. Morgan Chase Roy DeCicco KPMG LLP Mark Lundin MagTek, Inc. Roger Applewhite MagTek, Inc. . Mimi Hart MasterCard Europe Spr
33、l . Mark Kamers NACHA The Electronic Payments Association Priscilla Holland ANSI X9.692017 ASC X9, Inc. 2017 All rights reserved 7 National Security Agency. Paul Timmel Nautilus Hyosung . Joe Militello NCR Corporation David Norris Office of Financial Research, U.S. Treasury Department Justin Stekerv
34、etz PCI Security Standards Council Troy Leach RouteOne Chris Irving RouteOne Jenna Wolfe Symcor Inc. Debbi Fitzpatrick TECSEC Incorporated Ed Scheidt The Clearing House Sharon Jablon U.S. Bank . John King U.S. Commodity Futures Trading Commission (CFTC) . Robert Stowsky USDA Food and Nutrition Servi
35、ce . Kathy Ottobre Vantiv LLC . Gary Zempich VeriFone, Inc. Dave Faoro VISA Kim Wagner Wayne Fueling Systems . Steven Bowles Wells Fargo Bank Mark Schaffer ANSI X9.692017 8 ASC X9, Inc. 2017 All rights reserved The X9F subcommittee on Information Security had the following members: Dave Faoro, X9F C
36、hair Sandra Lambert, X9F Vice Chair Organization Represented Representative ACI Worldwide . Doug Grote ACI Worldwide . Dan Kinney ACI Worldwide Julie Samson American Bankers Association .Tom Judd American Express Company . Farid Hatefi American Express Company John Timar American Express Company Kev
37、in Welsh Bank of America Amanda Adams Bank of America . Peter Capraro Bank of America . Andi Coleman Bank of America . Lawrence LaBella Bank of America Will Robinson Bank of America . Michael Smith Bank of America Daniel Welch BlackBerry Limited Daniel Brown BlackBerry Limited Sandra Lambert Blackha
38、wk Network Vijay Bolina Blackhawk Network Anthony Redondo Bloomberg LP Erik Anderson Bloomberg LP Corby Dear Capital One . Marie LaQuerre Capital One Johnny Lee Cipherithm . Scott Spiker comForte 21 GmbH . Thomas Gloerfeld comForte 21 GmbH Henning Horst Communications Security Establishment Jonathan
39、 Hammell Communications Security Establishment . David Smith Conexxus, Inc. . Alan Thiemann CUSIP Service Bureau . Scott Preiss Delap LLP Andrea Beatty Delap LLP David Buchanan Delap LLP Darlene Kargel Deluxe Corporation . Angela Hendershott Deluxe Corporation Margiore Romay Deluxe Corporation . And
40、y Vo Diebold Nixdorf . Christoph Bruecher Diebold Nixdorf Andrea Carozzi Diebold Nixdorf Bruce Chapa Diebold Nixdorf . Michael Nolte Diebold Nixdorf Michael Ott Diebold Nixdorf Dave Phister Discover Financial Services .Cheryl Mish Discover Financial Services . Diana Pauliks Discover Financial Servic
41、es . Jordan Schaefer eCurrency David Wen Federal Reserve Bank . Patrick Adler Federal Reserve Bank Guy Berg Federal Reserve Bank . Marianne Crowe Federal Reserve Bank . Amanda Dorphy ANSI X9.692017 ASC X9, Inc. 2017 All rights reserved 9 Federal Reserve Bank Mary Hughes Federal Reserve Bank Heather
42、Hultquist Federal Reserve Bank Janet LaFrence Federal Reserve Bank Susan Pandy Federal Reserve Bank . Patti Ritter Federal Reserve Bank Daniel Rozycki First Data Corporation Annmarie Corrigan First Data Corporation Lisa Curry First National Bank of Omaha Kristi White FIS Chelsea Lopez FIS John Soare
43、s FIS . Sunny Wear Fiserv . Bud Beattie Fiserv . Dan Otten Futurex . Ryan Smith GEOBRIDGE Corporation Donna Gem GEOBRIDGE Corporation Jason Way Gilbarco . Scott Turner Gilbarco Bruce Welch Harland Clarke Joseph Filer Heartland Payment Systems Scott Meeker Hewlett Packard Susan Langford Hewlett Packa
44、rd Luther Martin Hewlett Packard Terence Spies IBM Corporation Todd Arnold Independent Community Bankers of America . Cary Whaley Ingenico . Rob Martin ITS, Inc. (SHAZAM Networks) Manish Nathwani J.P. Morgan Chase Bruce Geller J.P. Morgan Chase Kathleen Krupa J.P. Morgan Chase . Jackie Pagn J.P. Mor
45、gan Chase Darryl Scott K3DES LLC . Azie Amini KPMG LLP Mark Lundin MagTek, Inc. . Jeff Duncan MagTek, Inc. . Mimi Hart MasterCard Europe Sprl . Mark Kamers MasterCard Europe Sprl . Joshua Knopp MasterCard Europe Sprl Larry Newell MasterCard Europe Sprl Adam Sommer MasterCard Europe Sprl Michael Ward
46、 National Institute of Standards and Technology (NIST) . Elaine Barker National Institute of Standards and Technology (NIST) . Lily Chen National Security Agency Mike Boyle National Security Agency . Paul Timmel Nautilus Hyosung . Joe Militello Nautilus Hyosung Jay Shin NCR Corporation Tanika Eng NC
47、R Corporation Charlie Harrow NCR Corporation. David Norris Onboard Security Mark Etzel Onboard Security . William Whyte Onboard Security Lee Wilson Onboard Security Zhenfei Zhang PCI Security Standards Council . Leon Fell PCI Security Standards Council . Troy Leach ANSI X9.692017 10 ASC X9, Inc. 201
48、7 All rights reserved PCI Security Standards Council .Ralph Poore RSA, The Security Division of EMC . Steve Schmalz SafeNet, Inc. . Amit Sinha TECSEC Incorporated Ed Scheidt TECSEC Incorporated Dr. Wai Tsang TECSEC Incorporated Jay Wack Thales UK Limited Larry Hines Thales UK Limited . James Torjuss
49、en The Clearing House . Henry Farrar The Clearing House Sharon Jablon Trustwave. John Amaral Trustwave Tim Hollebeek U.S. Bank . Stephen Case U.S. Bank . Peter Skirvin Vantiv LLC . Jeffrey Singleton Vantiv LLC . Bill Weingart Vantiv LLC . Gary Zempich Vantiv LLC James Zerfas VeriFone, Inc. John Barrowman VeriFone, Inc. David Ezell VeriFone, Inc. . Dave Faoro VeriFone, Inc. . Doug Manchester VeriFone, Inc. . Brad McGuinness VeriFone, Inc. . Joachim Vance VISA Shahzad Khan VISA Kim Wagner Wayne Fueling Systems . Steven Bowles Wells Fargo
