Sun Microsystems Virtual Tape Library Manual de usuario Pagina 147

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Encrypting and shredding data
96267 • G Chapter 4 VTL operations 133
thekeypackage.Ifyouprovideanincorrectpassword,youwillstillbeableto
importthekeysinthepackage,butyouwillnotbeableto usethemtodecryptany
datathatwaspreviouslyencryptedusingthosekeys.
6. FromtheSelect Keys to Import list,selectthe keysthatyouwantto
import.
Youcanselect onlythosekeysthat haveagreendotandthephraseReady for
ImportintheStatuscolumn .AreddotandthephraseDuplicate Key Name
indicatesthatakeyofthesamenamealreadyex istsinthisinstanceofVTLand
cannotbe imported.
Ifyouselecte dakey
andsubsequentlydecidenottoimportit,youcancl ea rthekey.
Youcanalsoclearallselected keysbyclickingDe-Select All.(Youcanclickthis
buttononlyiftheShow All Keyscheckboxiscleared.)
Note:Akeyofthesa me namemightnotnecessarilyhavethesamesecretphrase.
Forexample,youmighthaveakeynamedKey1 withasecretphraseof
ThisIsTheSecretPhraseForKey1.Ifthekeypackagewascreatedbyanotherinst an ce
ofVTL,itmightalsohaveakeynamedKey1,butitssecretphrasemightbe
ThisIsADifferentSecretPhrase.Sincetheke ynamesarethesame,youwillnot
beable
toim portthekeyinthekeypackageunlessyourenametheexistingKey1.Afteryou
renamethekey, youcancontinuetouseittodecrypttapesthatwereencrypted
usingthatkey,andyoucanalsoimportthekeynamedKey1fromthekeypackage
and
useitto decrypt tapesthatwereencrypted usingthatkey.
7. ClickOK.
TheimportedkeysappearintheKey NamelistontheKey Managementdialog
box.Whenyousubsequentlyexportorimportatape ,thesekeynamesalsoappearin
theSelect a Keylis t .
Stophere.
Shreddinga virtualtape
Justasdelet ingafilefromyourharddrivedoesnot com pl ete ly destroythe file,
deletingavirtualtapedoe snotcompletelydestroythedataonthetape.Ifyouwant
toensurethat thedataisunrecoverable,youmustshredthetape.
Shreddingavirtualtapedestroysall dataon
thetape,makingit im possi bl eto
recoverthedata.Tapeshreddingusesamilitarystandardtodestroydataonvirtual
tapesbyoverwritingitwitharandompatternsofbits,renderingthedata
unreadable.
Toshredtapes:
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