Copyright Math – by Rob Reid

“Comic author Rob Reid unveils Copyright Math (TM), a remarkable new field of study based on actual numbers from entertainment industry lawyers and lobbyists.”

Please cite this article as: Eric (2012) Copyright Math – by Rob Reid. BlogSophy. https://sophy.ca/blog/2012/06/copyright-matha%c2%a2-by-rob-reid/

StupidFile! – Cannot Delete File On Desktop

by Eric Bright

Updated on July 07, 2018

Objective: removing an apparently irremovable file or folder.

Affected OS: Windows 2000, XP, Vista, 7, and newer versions

Symptoms:

You have a FOLDER on your desktop with a FILE in it, which you cannot delete.

You’re given this message:

“Cannot read from the source file or disk.”

Possible “solutions” that might not work:

  • You downloaded Process Explorer and examined every single process running in memory to find a sign of a program that may be using _something_ in that folder. You closed all programs, every resident applications, and all running processes that can be closed. You also closed even some of Windows process and stopped as many services as possible; no sign of any file handle to anything related to that folder… result: negative.
  • You have uninstalled many programs that you suspect they may cause the problem;… negative.
  • You tried to do “Open with…” then created a file with the same name, saved over the existing one… with no luck.
  • You have no Spyware, no virus and nothing suspicious at all.
  • You did chkdsk c: /f, RegSeeker, NortonDiskDoctor, Regedit (see also this), and lots of command line instructions that you read in forums;… negative (in regedit, you cannot even see any entry with the same name as that stupid file in your Windows registry.) (more about chkdsk.)
  • In the end, before installing a fresh damn Windows, why don’t you try this one:

Last resort:

At a cmd prompt type the following:

RD /S /Q [drive:] path

Example:

[on Windows XP]

C:\Documents and Settings[your log-in name]\Desktop\>RD /S /Q foldername
read more...

Please cite this article as: Bright, Eric. (2012) StupidFile! – Cannot Delete File On Desktop. BlogSophy. https://sophy.ca/blog/2012/06/stupidfile-cannot-delete-file-on-desktop/

Ubuntu and the Unity Paradigm

By Eric Bright

The first few days with Ubuntu 11.10 and its Unity

My system crashed completely. Everything in my Win7 installation is useless now. After saving my documents and whatnot from my dead Win7 installation using Ubuntu, now I’m thinking of giving up on Windows. I’m sick of it now. I’m sure Linux is going to give me a lot of headache and nightmares too, but in a long run, I think it’s the right decision to move away from Windows. I’m going to need a lot of help with stuffs in Ubuntu in near future and I’m counting on you. Wish me luck. read more...

Please cite this article as: Bright, Eric. (2011) Ubuntu and the Unity Paradigm. BlogSophy. https://sophy.ca/blog/2011/10/ubuntu-and-the-unity-paradigm/

The big brother…

It’s time to download and use the tor browser again, and some e-mail encryption apps. Welcome to the police-state of the federations of Canada a.k.a. 1984.

Please cite this article as: Bright, Eric. (2011) The big brother…. BlogSophy. https://sophy.ca/blog/2011/09/the-big-brother/

How to digitally sign an e-mail

Written by Eric Bright

Last update on August 29, 2013

2nd updated on August 25, 2011

First published on Feb 3, 2009

[UPDATE: This solution would not work with Gmail any longer, because the Firefox add-on that I was using at the time is not supported any more. Read the instructions for the updated method of signing your email here.]

Requirements:

  • Operating systems: Win XP, Vista, or 7
  • Softwares: GnuPG, Firefox, FireGPG (it’s a Firefox add-on), GPGshell
  • A gmail account
  • Enough time
  1. Go to Tools > Add-ons > Get add-ons
  2. Search this: FireGPG [UPDATE: this extension is discontinued. It will not work with Gmail any more because the Gmail support is removed from the extension. Here is the blog-post explaining the discontinuation.]
  3. When the add-on is found, install it [UPDATE: the add-on (or extension) is not available on Firefox Add-on web site any more. You can get it from here though.]
  4. Download GnuPG from here
  5. Install what you have downloaded (the package contains GnuPG: 2.0.17 and several other applications. You only need GnuPG)
  6. Restart your Firefox
  7. Go to Tools > Add-ons > Extensions
  8. Browse down to find FireGPG and then click on Options
  9. You will probably get the following message:
    Error : FireGPG is unable to access the gpg executable. Make sure GPG is installed or specify the path in the preferences.
  10. Click on Ok
  11. Go to the GPG tab
  12. Put a check mark next to Specify the path of GPG
  13. Click on the Browse button and browse to the folder you just installed your GPG into. It is usually in the following location by default:
    C:\Program files\GNU\GnuPG\gpg.exe  (note: in a 64bit Windows, it would be installed in C:\Program Files (x86)\GNU\GnuPG\gpg.exe)
    Select it and press Open
  14. Now you are back to the FireGPG Preferences dialog box. Click on Ok
  15. Close Add-ons
  16. Now you need to make secure keys to sign your e-mails so NO one can forge your emails any more. Here is how to make new keys and how to use them:
  17. Download this GPGshell from here: http://www.jumaros.de/rsoft/index.html
  18. Now you should have a file with this name gpgsh377.zip on your desktop (or wherever the downloaded file is put automatically.) Unzip and install GPGshell
  19. When you are asked if you “want to use blah blah blah for the GPGshell-HomeDir” say Yes
  20. Now you need to set-up your computer’s Environmental Variables’ PATH. To do so, Right-click on My Computer (or on Computer if you use Vista) and select Properties
  21. Click on the Advanced tab (“Advanced System Settings” and then “Advanced” tab under Windows 7)
  22. Click on the Environmental Variables
  23. Then browse down in the System Variables list-box and find PATH
  24. Press the Edit button
  25. In the Variable Value field, add the following
    C:\program files\GUN\GnuPG and make sure that it is separated from the next entry by a semicolon (or if you added it to the end of the string, it should be separated from the last item by a semicolon that looks like. (Note: it would be C:\Program Files (x86)\GNU\GnuPG if you are using a 64 bit system)
  26. Press Ok, three times I guess
  27. If you are on a Win XP machine, you need to restart now for the changes to take effect. Vista/Win7 does not need a restart
  28. Now, open Start > GPGshell > GPGkeys
  29. It’s the first time you are running this application, so you might not have a pair of keys. Then the program asks you to “create your own key now”. Say Yes
  30. GPGkeys’ Key Generation dialogue box will open up. In the User ID section, fill in the Name, Comment, and your E-mail that you are going to use. Example:
    Name: Andi Ramfield
    Comment: My first key ring
    E-mail: [email protected]
  31. Now click on the Generate button
  32. A command-line window pups up. After it finishes its work, you will get a dialog box asking you to protect your key by a passphrase. Click on Yes
  33. A new command-line window comes up again. Now enter your passphraes (like a password, but can be much longer). Example: AnDi-RaMfIeLd-7531. You should repeat it one more time to confirm the passphrase
  34. Now the GPGkeys main window comes up. You are done with making a pair of Public key and Private key. You keep the Private key in a safe, and give the Public key to others. You should send me one copy of the Public key that you just created. To do that, in the GPGkey window, right-click on the key you just created. Then select Export. Put it on your desktop. The key that you export has to have pub.asc at the end of its name. That means that it is a public key, not your private key
  35. Now log-in into your Gmail e-mail account (or Yahoo or Hotmail or whatever). Go to Compose Mail and write something
  36. Select the text you wrote
  37. You will see several buttons added to your tool-bar. One is Clear sign. Click on that button while the text in the compose area is still selected
  38. FireGPG -private key window will pop up. Select the key you created and click on Ok
  39. You will be asked to enter your passphrase. Enter it and bang! You have your text digitally signed
  40. But for me to be able to verify your signature, you should attach your public key that you Exported on your desktop. So attach it to the email that you signed (you need to do it once and I will have it on my computer for as long as it is not expired)
  41. Ok! Now, you signed the text, and attached your public key. When I get your e-mail, I download your attached public key too, install it on my computer, and will be able to Verify your signature later

That’s it!

The good thing is that I can send you Encrypted e-mails as long as I have your un-expired public key and no one on earth, not even me, can open it [possibly for a long time]. To open it, one has to have your Private key. The Firefox’s add-on, i.e. FireGPG, will decrypt the received encrypted text if it still has your Private key. read more...

Please cite this article as: Bright, Eric. (2009) How to digitally sign an e-mail. BlogSophy. https://sophy.ca/blog/2009/02/how-to-digitally-sign-an-e-mail/