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Windows 7: Difficult Question

14 Jan 2012   #11
Kari

Microsoft Community Contributor Award Recipient

 

Mickey, if he can see the data only when decrypted with encryption password, doesn't that mean the encryption works? The whole point of installing Linux to encrypted drive is that you can see the contents of that drive ONLY when drive is mounted and passphrase given!


My System SpecsSystem Spec
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14 Jan 2012   #12
mickey megabyte

ultimate 64 sp1
 
 

well i can't speak for the OP, but what i gather is that he wants to see what the encrypted data looks like.

original non-encrypted stuff = information

scrambled encrypted stuff = data

Quote   Quote: Originally Posted by giantpc View Post
...

In other words, what utility can I use to view data on an encrypted HD. It doesn't matter if the data shows as "dfusdf9set8w4twuiefasidft4" (In an encrypted format), I still would like to view the data either way to see how well the data on the second HD is encrypted.

...
although i'm not 100% sure.
My System SpecsSystem Spec
14 Jan 2012   #13
giantpc

win7
 
 

Quote   Quote: Originally Posted by Kari View Post
Quote   Quote: Originally Posted by giantpc View Post
Simplified: I used the Ubuntu 'Encrypted Installation" on my second HD. I would now like to view the data on that HD to make sure the data is encrypted as well as to see how well and how much data is encrypted. I can't find a utility that does this.
Doesn't this mean your encryption works?
lol, well I'm not sure. I've yet to find a utility that will let me view the data in its encrypted form ie "efhdfj4&$@7r3gfjd" but I imagine that there are some folders, some files, some data that isn't fully encrypted and I'm aiming to find out for sure.
My System SpecsSystem Spec
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14 Jan 2012   #14
Kari

Microsoft Community Contributor Award Recipient

 

If you are talking about encrypted LVM file system, rest assured your data is encrypted. It can be seen / searched only when the drive in question is mounted and encryption passphrase is given. Other than that, at least as far as I know, you have no way to get to that data.
My System SpecsSystem Spec
14 Jan 2012   #15
mickey megabyte

ultimate 64 sp1
 
 

well, the fact that it's so difficult to find such a utility seems to imply that your data will be safe from prying eyes.

i guess it depends how sensitive your data is, how much it's at risk of being snooped, and how much you've got to lose if someone does manage to unscramble it.
My System SpecsSystem Spec
14 Jan 2012   #16
giantpc

win7
 
 

Quote   Quote: Originally Posted by mickey megabyte View Post
not sure if it's what you want, but just found this software - not sure if it's any good, or if it works in 7, apparently it works with vista...

This utility only supports NTFS and FAT systems so I'm guessing it is just like the DOS utility that reported the second HD as unavailable (It wouldn't recognize the HD data).
My System SpecsSystem Spec
14 Jan 2012   #17
giantpc

win7
 
 

Quote   Quote: Originally Posted by Kari View Post
If you are talking about encrypted LVM file system, rest assured your data is encrypted. It can be seen / searched only when the drive in question is mounted and encryption passphrase is given. Other than that, at least as far as I know, you have no way to get to that data.
That was my first thought...but doesn't it seem odd how quickly the system mounts, and how all of the new files and folders never get an alert that they have been encrypted? During my usage of the system, I never see any of the NEW files that I add or create encrypted -- how do I know that they were encrypted somewhere in the background?

I don't even think that new files, or files added to the home directory, are encrypted.

My home directory is set to "Encrypted", but how do I know that each time I put new files into my "home directory" that it is encrypted? I don't, unless I view the data myself to make sure.

If I move in with a roommate next year and I am away, how do I know that he can't just copy my HD while I'm gone and then put it into his PC, run a utility, and view all of the half-encrypted or "left unencrypted" files?

It just doesn't feel like it is all encrypted. I run an "Encrypted Installation" one single time, and all the data on my system is supposed to be encrypted after each reboot? I don't buy it.

I bet that when I finally do find a utility to view the data that the only thing that shows up as encrypted is the system files, if that, and all oof my new data added after the ubuntu installation will be sitting there unencryped.
My System SpecsSystem Spec
14 Jan 2012   #18
giantpc

win7
 
 

I have discovered that the newly added files ARE encrypted, but only at unmount.

I guess I'll just have to take their word for it, because I can't find a utility to view the encrypted data in its encrypted form.

That means I'll never really know for sure because there is no way to test it.

Ah well.
My System SpecsSystem Spec
15 Jan 2012   #19
niemiro

Vista Home Premium x86 SP2
 
 

Quote   Quote: Originally Posted by giantpc View Post
I have discovered that the newly added files ARE encrypted, but only at unmount.

I guess I'll just have to take their word for it, because I can't find a utility to view the encrypted data in its encrypted form.

That means I'll never really know for sure because there is no way to test it.

Ah well.
Hello!

I understand what you want to do: see the notepad equivalent of the scrambled text.

However, I can assure you that the text is scrambled, because Linux can't read it.

However, neither you or I could look at scrambled text and recognise what encryption there is on it, and whether or not it is secure. Manually looking at the text will not reveal much at all, save for the fact that it might lead you into a false sense of security. For example, WEP encrypts the data, and would look scrambled to you, but in fact is not secure at all.

There are very many forms of encryption. In my opinion, it is far better to look at the statistics of the encryption algorithm used, and see how secure it is.

Now, cracking a zip file, for example, is very different to cracking a Windows Volume. With most encyption algorithms for .zip files, it would take a very long time to brute force the password, or other cracking methods. However, if you know some of the plain text within the .zip file, the time it takes to crack reduces massively.

However, on a Windows Volume, vast tracks of the Windows files could be guessed --> a lot of plain text data. Therefore, encryption has to be very careful around this.

How did you encrypt this drive?

Richard
My System SpecsSystem Spec
15 Jan 2012   #20
niemiro

Vista Home Premium x86 SP2
 
 

Hello again!

To give you some idea, I just encrypted my above post using RSA and DES:

Code:
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
FajRrHaPMYwxzRL97n9lct4T7N3GfNEpqutxhXzjELbKinkxNtpXtm19yoCimaVUkUITqJcez1b7pxvEufvycsBS7gHmL9s+HaLVDhB4Mln07aFBpDduMJ6AFctDLpuNC5FaEXhmK6f7eXGyb71qoaWus1fwb4NzJ7WMpSXFLeQ=
Richard

EDIT: The top line is the post encrypted in DES, and the bottom line is the DES key encrypted with RSA.

EDIT 2: And here it is using AES-256 and the insecure password of "test":
Code:
547eea917c8a45596ab082a881789a4c383d81507b7c1da0335db90084a5da39b29a588dbc65cdfc8feb336830fdcafcc27b237a7519c4efcf6b0e8496f3bca04b716d35df5300499f3679612925b4ba4bc4d3ab09c018582fb049151482e5d8262e350f234df16cde31f29ea1634116b3f8488615c68db523232b0c53165605d6bac1717f616130aa73f8737ad943f7c1cfe105750207728a460428317727260151cbb08c0bf3bcc06eebcab94ec82e03fce171235163ea49fe4505628581eed3259121ce4d75be8a4b45b24abb009421f4cf456bb0f3629fe63b26553243a6e8461d6011e0ed2b91771dfb350637519f3fb1407608f3350fa52eaa2782a7251ee306e092dd7517d5916f123a2cb5ee908420992213accf4837612c93a1e8f86dcbf0a225ffb0d3819d2ebd585cdb33b78ff3230b495b79d6c7a0aef4329b335ef6c3363ba62e170eb9a86be04f190fe201ecddd9530ee7ae27644f6cb0398b38c79506f2bfd7dea7225702603b6c42688f74a38fb8eee2b29754d54430378f8c41ab1f17da6d3ccedcf191edcc32f8a464d310263655543b40509cae4ee93cd67929561939f706576b4f516c5563439566cb698158c66ed8259b03e63d7b69847d12026fb5a9f99307848933258f2145f13ed31f06af8fa91be69e42a311f2c384a44091b69d2ef8844edab1a86410577a287342a821c9670587ff78de17c1737fee56c03d8e2d8753e7d0e5d389eb597b8c8cca47214035856651335998db7ae9da9e20e6b76c8b0ab3b983569524340ca7fd75d135c2f7a9f824b10fe6034476f3d54c54056fb078a13d42a71263befe90b384069e2d32e37dc8c2b9299623552809c822f297466a4d8b81d41f05cfe1b2cb71f81158b723b9fcea3ba0906a9ea905b53e6cfa30de252721d45e1d62a44eebf31a42bb217faed771867c172dc8e16543bb150df7435fd6f5ccc54ae670e0ffd449abb68fd5bdc3c9edda8281f6e349bf5a974b43b2af22249bbeff5ce3c5383d18b2921a1be9367f1995d697ce151625c055d508e9a7af08ce211e3c8881cf51d34483885d1df59e4d627b2e59d343539b2d6918377f5a32eec42c601b2fe0c523d82acc31341881f53da1484d8ef65e1346421931a708febccc203a424ca8dc754ec2917403f4766a73a8120f4d8f18349d3fe0af8bdeb815e852662ce4e0aa62a7b2d027cbc04b8aac4b860fe5e2287c3804b55cb56387e1a1a719dd1d597666eec171ea9fb7577dff2c6dc542ff056fd5930c3910891642950d298be95f25db8e407dc25428ac949cc41fd583daa5ed0e8617e33db66f385e523c7fdfd6ce899e13be741b2e47deff67250438bc7e37d7bf325b96536b076ee9e5b6c2f475b5fe6377adc5a42e4a9c9d1dd3d8fafe58e89805c782e0afbe2b41ff2b825c53661049ecebec49246872ab83722f064a300b67b100a6efd92cc5528f7bf2a3fe7cd5cae46fa953aad0fad56f7eef41a004570a50413bbf55a2c45a27540556dec47ca5a728b2e80ef832decb2d90c75029c7a505c325b2902ae6ded373aa67241fd6352f37b44a97e97952e04a56bcb01966294f43edbfa18f143477765cf6d62282b5be4fce75267ab0c772ee2616e55e0f70fdbce525061f6150797c004a0f68a89a1554f605047864359dbc301aa3e8be2949eea5150a521dff65f07030b0b3b00066d82864647e6103b7e252591e16c60ee443e2917138e0166dab152f9f6673fcbc563bab9858a29857dedeb4ed24f2ef1562719e017feeea22fcd3a6380cbc28580e885cf99e7573
not that you would know that the password is insecure, and the weakest link, just by looking at the scrambled text.
My System SpecsSystem Spec
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