also sprach Roscoe <eocsor@xxxxxxxxx> [2009.07.18.0303 +0200]: > No, it's not possible to use two different hashes, this is simply > because there is only one hash spec field. To do so would require > using a different on disk format to LUKS. Hm, sounds a bit like a design shortcoming. > It would be possible to change from sha1 to another hash for all your > key slots, it would merely require decrypting each keyslot using > PBKDF2/sha1, and then re-encrypting using PBKDF2/newhash. > > That's a bit of screwing around coding a niche functionality. cryptsetup cannot do this though, right? > What I'd like to see is -h support for LUKS in cryptsetup, the > ability to print the bulk payload key and the ability to specify > the bulk payload key with luksFormat (which is useful in other > circumstances too). That way one could achieve what you desire > pretty easily.. I don't understand. Are you saying that I'd use luksFormat just to install a new header for an existing crypted filesystem, and since I am supplying the same old key (this time hashed differently), it should just work? -- martin | http://madduck.net/ | http://two.sentenc.es/ when everything is coming your way, you're in the wrong lane. spamtraps: madduck.bogus@xxxxxxxxxxx
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