Dell W-AP92 Manuel d'utilisateur télécharger pdf (Page 43)

43

CSP

CSP TYPE

GENERATION

STORAGE

And

ZEROIZATI

ON

USE

802.11i Group Master Key

(GMK)

256-bit

secret used

to derive

GTK

Generated from approved

RNG

Stored in

plaintext in

volatile

memory;

zeroized on

reboot

Used to derive

Group

Transient Key

(GTK)

802.11i Group Transient

Key (GTK)

256-bit

shared secret

used to

derive group

(multicast)

encryption

and integrity

keys

Internally derived by AP

which assumes

“authenticator” role in

handshake

Stored in

plaintext in

volatile

memory;

zeroized on

reboot

Used to derive

multicast

cryptographic

keys

802.11i Group AES-CCM

Data Encryption/MIC Key

128-bit

AES-CCM

key derived

from GTK

Derived from 802.11

group key handshake

Stored in

plaintext in

volatile

memory;

zeroized on

reboot

Used to protect

multicast

message

confidentiality

and integrity

(AES-CCM)

RSA private Key

1024/2048-

bit RSA

private key

Generated on the AP

(remains in AP at all

times)

Stored in and

protected by

AP’s non-

volatile

memory.

zeroized by the

‘ap wipe out

flash’

command

Used for

IKEv1/IKEv2

authentication

when AP is

authenticating

using

certificate

based

authentication

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