You are viewing this page in an unauthorized frame window.
This is a potential security issue, you are being redirected to https://csrc.nist.gov.
An official website of the United States government
Here’s how you know
Official websites use .gov A
.gov website belongs to an official government
organization in the United States.
Secure .gov websites use HTTPS A
lock (
) or https:// means you’ve safely connected to
the .gov website. Share sensitive information only on official,
secure websites.
The implementation of hash algorithm consists of 3 parts: 1) Initialization, 2) Grouping operation. Recovering the data is needed when the datea is not grouped in integer times, and 3) Holding the results of all the data. The implementation of CMAC refers to SP800-38B. SP800-108 KDF uses pseudorandom function in counter mode.