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Acknowledgements March, 2007 The National Institute of Standards and Technology (NIST) gratefully acknowledges and appreciates contributions by Lydia Zieglar from the National Security Agency concerning the many security issues associated with this Recommendation. NIST also thanks the many contributions by the public and private sectors whose thoughtful and constructive comments improved the quality and usefulness of this publication. 3
Authority March, 2007 This document has been developed by the National Institute of Standards and Technology (NIST) in furtherance of its statutory responsibilities under the Federal Information Security Management Act (FISMA) of 2002, Public Law 107-347. NIST is responsible for developing standards and guidelines, including minimum requirements, for providing adequate information security for all agency operations and assets, but such standards and guidelines shall not apply to national security systems. This guideline is consistent with the requirements of the Office of Management and Budget (OMB) Circular A-130, Section 8b(3), Securing Agency Information Systems, as analyzed in A-130, Appendix IV: Analysis of Key Sections. Supplemental information is provided in A-130, Appendix III. This guideline has been prepared for use by federal agencies. It may be used by nongovernmental organizations on a voluntary basis and is not subject to copyright. (Attribution would be appreciated by NIST.) Nothing in this document should be taken to contradict standards and guidelines made mandatory and binding on federal agencies by the Secretary of Commerce under statutory authority. Nor should these guidelines be interpreted as altering or superseding the existing authorities of the Secretary of Commerce, Director of the OMB, or any other federal official. Conformance testing for implementations of key management as specified in this Recommendation will be conducted within the framework of the Cryptographic Module Validation Program (CMVP), a joint effort of NIST and the Communications Security Establishment of the Government of Canada. Cryptographic implementations must adhere to the requirements in this Recommendation in order to be validated under the CMVP. The requirements of this Recommendation are indicated by the word “shall.” 4
Page 1 and 2: ARCHIVED PUBLICATION The attached p
Page 3: Abstract March, 2007 This Recommend
Page 7 and 8: March, 2007 key validation, account
Page 9 and 10: March, 2007 4.2.4.1 DSA............
Page 11 and 12: March, 2007 8 KEY MANAGEMENT PHASES
Page 13 and 14: March, 2007 10.2.9 Compromise Manag
Page 15 and 16: March, 2007 Figure 3: Key states an
Page 17 and 18: March, 2007 1.2 Audience The audien
Page 19 and 20: March, 2007 1. Section 1, Introduct
Page 21 and 22: March, 2007 Backup A copy of inform
Page 23 and 24: March, 2007 Digital signature The r
Page 25 and 26: Key Management Policy Key Managemen
Page 27 and 28: Proof of possession (POP) Pseudoran
Page 29 and 30: March, 2007 Split knowledge A proce
Page 31 and 32: March, 2007 3 Security Services Cry
Page 33 and 34: March, 2007 However, it is often th
Page 35 and 36: March, 2007 4 Cryptographic Algorit
Page 37 and 38: March, 2007 operates on blocks (chu
Page 39 and 40: March, 2007 minimum key size 7 of 1
Page 41 and 42: March, 2007 2. The protocols trigge
Page 43 and 44: March, 2007 7. Symmetric key wrappi
Page 45 and 46: March, 2007 9. Random numbers: The
Page 47 and 48: March, 2007 In general, where stron
Page 49 and 50: March, 2007 a. When a symmetric key
Page 51 and 52: March, 2007 information. For less s
Page 53 and 54: 8. Symmetric and Asymmetric RNG key
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15. Private ephemeral key agreement
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Key Type 12. Symmetric Key Agreemen
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March, 2007 establishment keys, see
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March, 2007 c. Restricting plaintex
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March, 2007 algorithms completely i
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March, 2007 Table 3: Hash function
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Table 4: Recommended algorithms and
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March, 2007 size is available, the
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Security life of data up to 4 years
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March, 2007 6 Protection Requiremen
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Table 5: Protection requirements fo
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Key Type Security Service Private e
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March, 2007 Crypto. Security Securi
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March, 2007 may be applied only to
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March, 2007 All cryptographic infor
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March, 2007 8. Domain parameters (e
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March, 2007 6. Destroyed Compromise
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March, 2007 a. A private signature
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2 Pre-Operational Phase 3 7 1 4 Ope
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March, 2007 8.1 Pre-operational Pha
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8.1.5.1.1 Distribution of Static Pu
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March, 2007 and then provide eviden
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March, 2007 listed in Section 8.1.5
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March, 2007 encrypting key or publi
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March, 2007 8.1.5.3.5 Intermediate
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March, 2007 of keying material and
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March, 2007 2. The application in w
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March, 2007 and the key derivation
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March, 2007 Type of Key Archive? Re
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March, 2007 All records of the enti
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March, 2007 other cryptographic inf
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March, 2007 access to information e
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March, 2007 1. Private key used to
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March, 2007 10.2 Content of the Key
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March, 2007 Management Specificatio
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March, 2007 is the same value as th
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March, 2007 If the decision is made
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March, 2007 only, and then shall be
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March, 2007 may be stored in backup
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March, 2007 and the method of key r
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March, 2007 ephemeral key pairs, an
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B.3.14.7 Key Control Information Ma
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March, 2007 to be saved. Keys for t
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[HAC] Handbook of Applied Cryptogra
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March, 2007 the owner by the CA tha
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