U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.


Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

SP 800-32

Introduction to Public Key Technology and the Federal PKI Infrastructure

Date Published: February 26, 2001

Planning Note (9/13/2021):

See the withdrawal announcement and rationale for withdrawal.

For current information on this topic, see https://idmanagement.gov, especially:


Richard Kuhn (NIST), Vincent Hu (NIST), W. Polk (NIST), Shu-jen Chang (NIST)



certificates; digital signatures; PKI; public key infrastructure
Control Families

Identification and Authentication; Planning; Risk Assessment; System and Communications Protection


SP 800-32 (DOI)
Local Download

Supplemental Material:
None available

Document History:
02/26/01: SP 800-32