Re: Decrypt problem with large file

2007-12-06 Thread Ryan Malayter
On Dec 5, 2007 1:06 PM, Robert J. Hansen <[EMAIL PROTECTED]> wrote: > [EMAIL PROTECTED] wrote: > > a simpler, much faster, solution is to just use truecrypt > > and then encrypt the keyfile with gnupg > > Unless you have done performance metrics with 1TB datasets, I seriously > doubt the accuracy o

Re: Decrypt problem with large file

2007-12-05 Thread Robert J. Hansen
[EMAIL PROTECTED] wrote: > a simpler, much faster, solution is to just use truecrypt > and then encrypt the keyfile with gnupg Unless you have done performance metrics with 1TB datasets, I seriously doubt the accuracy of this statement. Backing up 1TB is definitely a torture test; small effects c

re: Decrypt problem with large file

2007-12-05 Thread vedaal
Ryan Malayter malayter at gmail.com wrote on Tue Dec 4 17:03:43 CET 2007 : > Our solution for backup encyption has been to use 7zip ... >We do over 1 TB of backups per night a simpler, much faster, solution is to just use truecrypt and then encrypt the keyfile with gnupg quote from the truecryp

Re: Decrypt problem with large file

2007-12-04 Thread Ryan Malayter
On Nov 26, 2007 3:58 AM, Thomas Pries <[EMAIL PROTECTED]> wrote: > I realized, that I have lost my data :-(. Our solution for backup encyption has been to use 7zip, since it encrypts faster and supports segmentation, per-file checksuimming, and other useful backup-oriented features. What our scr

Re: Decrypt problem with large file

2007-11-29 Thread Thomas Pries
Hello, Am Montag, 26. November 2007 10:19 schrieb Werner Koch: > I guess that the file got corrupted on the medium. Hard disks are not > 100% error free and with such a large file there is a chance that you > experienced a bit flip. No doubt, my fault, I should have a second (and third) copy of

Re: WinXP problem with large files was: Re: Decrypt problem with large file

2007-11-28 Thread Werner Koch
On Wed, 28 Nov 2007 10:06, [EMAIL PROTECTED] said: > Werner, do you use GetFileSize or GetFileSizeEx? There are also Since 1.4.3 we are using GetFileSizeEx if available on the platform. We use it todecide whether a file is close to 4GB - if this is the case we use OpenPGP's partial encoding form

Re: WinXP problem with large files was: Re: Decrypt problem with large file

2007-11-28 Thread Werner Koch
On Wed, 28 Nov 2007 00:59, [EMAIL PROTECTED] said: > I also recall that Werner stated the AES code in GnuPG wouldn't be > optimized for a number of reasons, becasue of security (timing > attacks), and also a desire to keep GnuPG architecture-agnostinc. The Nope. It is just that nobody has found

Re: WinXP problem with large files was: Re: Decrypt problem with large file

2007-11-28 Thread Snoken
Hi again, I found the old thread: Trouble decrypting AES256 symmetric encrypted file: You (Ryan) wrote: This is surpisingly *not* a Windows issue. We have 200+ GB database files on many of our database servers. All using NTFS. I think the issue is that GnuPG is using a 32-bit DWORD file pointer

Re: WinXP problem with large files was: Re: Decrypt problem with large file

2007-11-27 Thread Ryan Malayter
> Snoken wrote: > > is the old problem with files greater than 4 GB solved? How large > > files can gpg handle on WindowsXP? On other systems? My recollection is that the file size issue was fixed years ago, as it was a limitation in the MinGW layer or something that was remedied. I never followed

Re: WinXP problem with large files was: Re: Decrypt problem with large file

2007-11-27 Thread Robert J. Hansen
Snoken wrote: > is the old problem with files greater than 4 GB solved? How large > files can gpg handle on WindowsXP? On other systems? Depends a lot on your filesystem. FAT32 doesn't like files greater than 4GB, no matter what program makes them. NTFS does not have this limitation. I have see

WinXP problem with large files was: Re: Decrypt problem with large file

2007-11-27 Thread Snoken
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi, is the old problem with files greater than 4 GB solved? How large files can gpg handle on WindowsXP? On other systems? Snoken At 00:39 2007-11-18, you wrote: - --snip-- >I found a thread discussing a similar decryption problem in the Gnupg-users

Re: Decrypt problem with large file

2007-11-26 Thread Werner Koch
On Sun, 18 Nov 2007 00:39, [EMAIL PROTECTED] said: > gpg: original file name='abc.tgz' > gpg: packet(14) with unknown version 26 > gpg: WARNING: encrypted message has been manipulated! > gpg: packet(6) with unknown version 139 > > I repeated the decryption with different gpg versions (1.4.2, 2.0.4

Re: Decrypt problem with large file

2007-11-23 Thread Thomas Pries
Hallo, Am Sonntag, 18. November 2007 00:39 schrieb Thomas Pries: > this decryption faild with errormessage: > ... > gpg: WARNING: encrypted message has been manipulated! > gpg: packet(6) with unknown version 139 addition: up to this point I can restore about 30% of the archive content. Greetin