Educause Security Discussion mailing list archives
Re: How much does disk encryption add to boot time?
From: "Pace, Guy" <gpace () CIS CTC EDU>
Date: Wed, 2 May 2007 08:01:51 -0700
No, not hours. The initial restart or reboot of a full-disk encryption may take some time, depending on the size of the drive and the tool you choose to use. My experience is that if I leave things alone, my laptop can finished full encryption in a couple hours. After that boot time, login and all is about the same as before. My recommendation is to test a tool configuration a couple times before putting it into production. Once you set a configuration (single-signon, what is encrypted, what features are included, etc.) you have to undo the encryption to change it. Decrypting, changing configuration, and re-encrypting _can_ take up to four hours on an 80 gb drive. At least, that is the case in the tool I'm using. Otherwise, I don't see any significant difference in performance or operation. Guy L. Pace, CISSP Security Administrator Center for Information Services (CIS) 3101 Northup Way, Suite 100 Bellevue, WA 98004 425-803-9724 gpace () cis ctc edu -----Original Message----- From: David Millar [mailto:millar () ISC UPENN EDU] Sent: Wednesday, May 02, 2007 7:43 AM To: SECURITY () LISTSERV EDUCAUSE EDU Subject: [SECURITY] How much does disk encryption add to boot time? Does anyone have experience with roughly how much additional time it takes to boot a typical late-model office laptop (or desktop)? We aren't talking hours here I hope. Thanks. Dave Millar University Information Security Officer University of Pennsylvania
Current thread:
- How much does disk encryption add to boot time? David Millar (May 02)
- <Possible follow-ups>
- Re: How much does disk encryption add to boot time? Roger Safian (May 02)
- Re: How much does disk encryption add to boot time? Pace, Guy (May 02)
- Re: How much does disk encryption add to boot time? George Bailey (May 02)
- Re: How much does disk encryption add to boot time? Matthew Gracie (May 02)
- Re: How much does disk encryption add to boot time? Jordan Wiens (May 02)
- Re: How much does disk encryption add to boot time? David A Lundy (May 02)
- Re: How much does disk encryption add to boot time? Alan Amesbury (May 04)
- Re: How much does disk encryption add to boot time? Cal Frye (May 04)