Hi Roscoe, ahem, no? I assume exactly 256 bits, which happens to be the default with current cryptsetup 1.2.0. Is there any reason why a significant number of people would have 512 bits or any other value than 256 bits? The only option I see is to manually specify a different cipher, but at least my kernel (2.6.37 with all crypto-options compiled in) does not have any ciphers with 512 bit key size. Hmm. Does some distro use XTS mode with 512 bit keys as default? Which one? If so, I will have to change some other answers as well, in particular "What does the on-disk structure of LUKS look like?". Arno On Fri, Feb 11, 2011 at 11:06:06PM +1100, Roscoe wrote: > Morning, > > In "How do I securely erase a LUKS (or other) partition?" it's > probably worth mentioning that you are assuming <=256 bit master keys. > Many folks out there will have 512 bit master keys. > > -- Roscoe > _______________________________________________ > dm-crypt mailing list > dm-crypt@xxxxxxxx > http://www.saout.de/mailman/listinfo/dm-crypt > -- Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@xxxxxxxxxxx GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F ---- Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans If it's in the news, don't worry about it. The very definition of "news" is "something that hardly ever happens." -- Bruce Schneier _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
