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Appendix B Change Log

NIST PIV and digital identity SP 800-78-5 against SP 800-78-4
All changes in this version
added Appendix B Change Log

Title changed

Before · SP 800-78-4

After · SP 800-78-5

Change Log

Control changed

Before · SP 800-78-4

After · SP 800-78-5

This appendix is informative and provides an overview of the changes made to SP 800-78 since its initial release.

In August 2007, Revision 1 enhanced alignment with the National Security Agency’s Suite B Cryptography by:

• Reducing the set of elliptic curves approved for use with PIV cards from six curves to two,

• Adding SHA-384 with Curve P-384, and

• Eliminating the largest size of RSA keys (3072 bits) on PIV cards.

In February 2010, Revision 2 updates included:

• Realigning with the NSA Suite B Cryptographic specification by removing discontinued Elliptic Curve MQV as a key agreement scheme,

• Aligning with FIPS 186-3 by removing RSA 4096 as an algorithm and key size for generating signatures for PIV data objects, and

• Eliminating the redundant cipher block chaining (CBC) mode of encryption for symmetric authentication purposes (challenge and response)

In December 2010, Revision 3 updates included:

• Aligning the set of acceptable RSA public key exponents with FIPS 186-3 and

• Extending the permitted use of SHA-1 after December 31, 2010, when signing revocation information under limited circumstances.

In 2014, Revision 4 updates included:

• Adding algorithm and key size requirements for secure messaging,

• Adding Cryptographic Algorithm Validation Program (CAVP) validation testing requirements, and

• Clarifying that RSA public keys may only have a public exponent of 65537.

In 2024, Revision 5 updates incorporated the following changes:

• Table 1 reflects additional higher strength keys with at least 128-bit security and suggested sunsets of lower sized keys by 2030 in anticipation of the recommended migration to 128-bit security strength in 2031,

• Accommodation of the Secure Messaging Authentication key,

• Deprecation of the symmetric card authentication key,

• Deprecation of 3TDEA algorithm with identifiers ‘00’ and ‘03’,

• Removal of the retired RNG from CAVP PIV component testing, where applicable, and
• Removal of the retired FIPS 186-2 Key Generation component testing, where applicable.