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IBM Tivoli Directory Server support for NIST SP 800-131A

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This tech note describes the configuration that is required in IBM Tivoli Directory Server V6.3.0.17 (and later fix levels) for the transition to NIST SP 800-131A.


National Institute of Standards and Technology (NIST) Special Publication (SP) 800-131A guidelines provide cryptographic key management guidance. These guidelines include:

  • Key management procedures.
  • How to use cryptographic algorithms.
  • Algorithms to use and their minimum strengths.
  • Key lengths for secure communications.

Suite B mode is a restrictive subset of the SP 800-131A specification. Suite B defines the cryptographic algorithm policies to use with the Transport Layer Security (TLS) protocol for national security applications.

Government agencies and financial institutions use the NIST SP 800-131A guidelines to ensure that the products conform to specified security requirements.

Support for the transition to NIST SP 800-131A
For the transition to NIST SP 800-131A guidelines, IBM Tivoli Directory Server V6.3.0.17 (and later fix levels including the latest recommended fix level) supports:
  • The Transport Layer Security (TLS) 1.2 protocol.
  • Disabling protocols other than TLS 1.2.
  • Public keys with the following key strengths:
    • The RSA keys with a minimum size of 2048 bits.
    • The elliptic curve (EC) keys with a minimum size of 160-bits or curve p160.
  • Certificates with the RSA keys 2048-bits or higher or with the EC keys 160-bits or curve p160 or higher.
  • Digital signatures with a minimum of SHA2 encryption algorithm.
  • Setting the TLS 1.2 signature and hash algorithm restrictions.
  • Suite B mode.

For more information about how to configure Tivoli Directory Server, version (and later fix levels) to support the transition to NIST SP 800-131A, see the Support for NIST SP 800-131A guide.

Support for NIST SP 800-131A.pdf Support for NIST SP 800-131A.pdf

Related Information

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Document Information

Modified date:
16 June 2018