From owner-freebsd-questions@FreeBSD.ORG Fri Aug 11 20:20:21 2006 Return-Path: X-Original-To: questions@freebsd.org Delivered-To: freebsd-questions@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1302F16A4DA for ; Fri, 11 Aug 2006 20:20:21 +0000 (UTC) (envelope-from norgaard@locolomo.org) Received: from strange.daemonsecurity.com (59.Red-81-33-11.staticIP.rima-tde.net [81.33.11.59]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2A99E43D46 for ; Fri, 11 Aug 2006 20:20:09 +0000 (GMT) (envelope-from norgaard@locolomo.org) Received: from [192.168.0.253] (unknown [192.168.0.253]) by strange.daemonsecurity.com (Postfix) with ESMTP id 4319F2F23B for ; Fri, 11 Aug 2006 22:19:59 +0200 (CEST) Message-ID: <44DCE65D.8000701@locolomo.org> Date: Fri, 11 Aug 2006 22:19:41 +0200 From: =?UTF-8?B?RXJpayBOw7hyZ2FhcmQ=?= Organization: Locolomo.ORG User-Agent: Thunderbird 1.5.0.5 (X11/20060801) MIME-Version: 1.0 To: FreeBSD Questions Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------ms080701010904070409090009" Cc: Subject: size of crypto file systems geli/gbde X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Aug 2006 20:20:21 -0000 This is a cryptographically signed message in MIME format. --------------ms080701010904070409090009 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Hi: I want to create encrypted memory filesystems for backup, and selective data destruction: If I have data from different users say, each user's backup will be stored as different encrypted file systems. Then I can selectively destroy data from one user by throwing away the key. Now, how do I estimate the actual available space on an encrypted partition? Say, I need to backup 100MB - how big an mfs do I need to create in order that the encrypted file system will be 100MB? Secondly: Which of the two supported crypto file systems is recommended: ELI or BDE? PHK writes in the manpage of BDE that no audit of the code have been made, but no such warning appears on ELI. Which is strongest/fastest/most efficient/reliable? Thanks, Erik -- Ph: +34.666334818 web: http://www.locolomo.org X.509 Certificate: http://www.locolomo.org/crt/8D03551FFCE04F0C.crt Key ID: 69:79:B8:2C:E3:8F:E7:BE:5D:C3:C3:B1:74:62:B8:3F:9F:1F:69:B9 --------------ms080701010904070409090009 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIL5jCC Be8wggPXoAMCAQICCQCNA1Uf/OBPDDANBgkqhkiG9w0BAQUFADCBmTELMAkGA1UEBhMCRVMx GDAWBgNVBAoTD0RhZW1vbiBTZWN1cml0eTEeMBwGA1UECxMVQ2VydGlmaWNhdGUgQXV0aG9y aXR5MR4wHAYDVQQDExVDZXJ0aWZpY2F0ZSBBdXRob3JpdHkxJDAiBgkqhkiG9w0BCQEWFWNh QGRhZW1vbnNlY3VyaXR5LmNvbTEKMAgGA1UEBRMBMDAeFw0wNjA0MjAxMzE2NTBaFw0wNzA0 MjAxMzE2NTBaMGIxCzAJBgNVBAYTAkVTMRUwEwYDVQQKEwxMb2NvTG9tby5PcmcxFjAUBgNV BAMTDUVyaWsgTm9yZ2FhcmQxJDAiBgkqhkiG9w0BCQEWFW5vcmdhYXJkQGxvY29sb21vLm9y 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