[2/27/24, 11:00 AM EST] CSRC has been experiencing technical issues. If you are unable to access a CSRC page or resource, or get a 503 error, please try reloading the page several times--it may help to wait a few minutes before trying again. We apologize for the inconvenience, and hope to have a solution in place next week.
A fixed string that is prepended to the plaintext within the authenticated-encryption function of a key-wrap algorithm, in order to enable the verification of the integrity of the plaintext within the authenticated-decryption function.
NIST SP 800-38F under integrity check value
CNSSI 4009-2015 under integrity check value