A binary vector used as the input to initialize the algorithm for the encryption of a plaintext block sequence to increase security by introducing additional cryptographic variance and to synchronize cryptographic equipment. The initialization vector need not be secret. Some of the Triple Data Encryption Algorithm Modes of Operation require 3 initialization vectors.
Sources:
NIST SP 800-20
under Initialization Vector
Initialization Vector
Sources:
NIST SP 800-20
under IV
NIST SP 800-38D
under IV
The initialization vector.
Sources:
NIST SP 800-38A
under IV
NIST SP 800-38D
under IV
A nonce that is associated with an invocation of authenticated encryption on a particular plaintext and AAD.
Sources:
NIST SP 800-38D
under Initialization Vector
A bit string that is used as an initial value in computing the first iteration of the PRF in feedback mode. It may be an empty string.
Sources:
NIST SP 800-108r1
[August 2022 (Includes updates as of 02-02-2024)]
under IV