1、American National StandardDeveloped byfor Information Technology Fibre Channel Security Protocols - 2 (FC-SP-2)INCITS 496-2012INCITS 496-2012INCITS 496-2012American National Standardfor Information Technology Fibre Channel Security Protocols - 2 (FC-SP-2)SecretariatInformation Technology Industry Co
2、uncilApproved October 25, 2012American National Standards Institute, Inc.AbstractThis standard describes the protocols used to implement security in a Fibre Channel fabric. This stan-dard includes the definition of protocols to authenticate Fibre Channel entities, protocols to set up ses-sion keys,
3、protocols to negotiate the parameters required to ensure frame-by-frame integrity andconfidentiality, and protocols to establish and distribute policies across a Fibre Channel fabric.Approval of an American National Standard requires review by ANSI that therequirements for due process, consensus, an
4、d other criteria for approval havebeen met by the standards developer.Consensus is established when, in the judgement of the ANSI Board ofStandards Review, substantial agreement has been reached by directly andmaterially affected interests. Substantial agreement means much more thana simple majority
5、, but not necessarily unanimity. Consensus requires that allviews and objections be considered, and that a concerted effort be madetowards their resolution.The use of American National Standards is completely voluntary; theirexistence does not in any respect preclude anyone, whether he has approvedt
6、he standards or not, from manufacturing, marketing, purchasing, or usingproducts, processes, or procedures not conforming to the standards.The American National Standards Institute does not develop standards andwill in no circumstances give an interpretation of any American NationalStandard. Moreove
7、r, no person shall have the right or authority to issue aninterpretation of an American National Standard in the name of the AmericanNational Standards Institute. Requests for interpretations should beaddressed to the secretariat or sponsor whose name appears on the titlepage of this standard.CAUTIO
8、N NOTICE: This American National Standard may be revised orwithdrawn at any time. The procedures of the American National StandardsInstitute require that action be taken periodically to reaffirm, revise, orwithdraw this standard. Purchasers of American National Standards mayreceive current informati
9、on on all standards by calling or writing the AmericanNational Standards Institute.American National StandardPublished byAmerican National Standards Institute, Inc.25 West 43rd Street, New York, NY 10036Copyright 2012 by Information Technology Industry Council (ITI)All rights reserved.No part of thi
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14、 con-ducted by the developer or publisher in respect to any standard it processes. No representation ismade or implied that this is the only license that may be required to avoid infringement in the use ofthis standard.iContents PageForeword . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Normative References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17、. . . . . . . . . . . . . . . . 22.2 Approved references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22.3 References under development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22.4 Other Referenc
18、es . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Definitions and conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63.1 Overview . . . . . . . . . . . . . . . . . . . . . . .
19、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63.3 Editorial Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20、. . . . . . . . . . . . . . . . . . . . . 93.4 Abbreviations, acronyms, and symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113.5 Keywords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123.6 T
21、10 Vendor ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133.7 Sorting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133.7.1 Sorting alphabetic keys . . .
22、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133.7.2 Sorting numeric keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133.8 Terminate Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23、. . . . . . . . . . . . 133.9 State Machine notation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143.10 Using numbers in hash functions and concatenation functions . . . . . . . . . . . . . . . . . 154 Structure and Concepts . . . . . . . . . . .
24、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164.2 FC-SP-2 Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25、 . . . . . . . . . . . . . . . . . . . . . 164.3 Fabric Security Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164.4 Authentication Infrastructure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164.5
26、Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174.6 Security Associations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184.7 Cryptographic Integrity and Confidentia
27、lity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184.7.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184.7.2 ESP_Header Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28、. . . . . . . 194.7.3 CT_Authentication Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204.8 Authorization (Access Control) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224.8.1 Policy Definition . . . . . . . . . . . .
29、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224.8.2 Policy Enforcement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234.8.3 Policy Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30、 . . . . . . . . . 234.8.4 Policy Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234.9 Name Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235 Authentication Protoco
31、ls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245.2 Authentication Messages Structure . . . . . . . . . .
32、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255.2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255.2.2 SW_ILS Authentication Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255.
33、2.3 ELS Authentication Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275.2.4 Fields Common to All AUTH Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285.2.5 Vendor Specific Messages . . . . . . . . . . . . . . . . . . . . . . . . . . .
34、. . . . . . . . . . . . . . 295.3 Authentication Messages Common to Authentication Protocols . . . . . . . . . . . . . . . . . . 295.3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29ii5.3.2 AUTH_Negotiate Message . . . . . .
35、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305.3.3 Names used in Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315.3.4 Hash Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
36、 . 325.3.5 Diffie-Hellman Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325.3.6 Accepting an AUTH_Negotiate Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335.3.7 AUTH_Reject Message . . . . . . . . . . . . . . . . . . . . . . . . .
37、 . . . . . . . . . . . . . . . . . . 335.3.8 AUTH_Done Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365.4 DH-CHAP Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375.4.1 Protocol Operati
38、ons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375.4.2 AUTH_Negotiate DH-CHAP Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395.4.3 DHCHAP_Challenge Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
39、 . 405.4.4 DHCHAP_Reply Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 415.4.5 DHCHAP_Success Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435.4.6 Key Generation for the Security Association Management Protocol . . . . .
40、 . . . . 445.4.7 Reuse of Diffie-Hellman Exponential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 445.4.8 DH-CHAP Security Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 445.5 FCAP Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . .
41、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 475.5.1 Protocol Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 475.5.2 AUTH_Negotiate FCAP Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 505.5.3 FCAP_Reque
42、st Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 515.5.4 FCAP_Acknowledge Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 545.5.5 FCAP_Confirm Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
43、 . . . . . . 565.5.6 Key Generation for the Security Association Management Protocol . . . . . . . . . 565.5.7 Reuse of Diffie-Hellman Exponential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 565.6 FCPAP Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
44、. . . . . . . . . . . . . . . . . . . . . 575.6.1 Protocol Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 575.6.2 AUTH_Negotiate FCPAP Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 605.6.3 FCPAP_Init Message . . . .
45、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 615.6.4 FCPAP_Accept Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 625.6.5 FCPAP_Complete Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
46、 635.6.6 Key Generation for the Security Association Management Protocol . . . . . . . . . 635.6.7 Reuse of Diffie-Hellman Exponential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 635.7 FCEAP Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
47、. . . . . . . . . . . . . . . 645.7.1 Protocol Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 645.7.2 AUTH_Negotiate FCEAP Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 645.7.3 FCEAP_Request Message . . . . . . . .
48、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 655.7.4 FCEAP_Response Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 655.7.5 FCEAP_Success Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 665.7.6 FCEAP_Fai
49、lure Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 665.7.7 AUTH_Reject Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 675.7.8 AUTH_ELS and AUTH_ILS Size Requirements . . . . . . . . . . . . . . . . . . . . . . . . 675.7.9 Supported EAP Methods . . . . . . . . . . . . . . . . . . . . .
