Comments for Stuff... And Things... http://stuff-things.net Paradise is exactly like where you are right now only much, much better... Thu, 20 Nov 2008 20:59:20 +0000 http://wordpress.org/?v=2.6.1 Comment on Encrypting Lots of Sensitive Data with Ruby (on Rails) by Spike http://stuff-things.net/2008/02/05/encrypting-lots-of-sensitive-data-with-ruby-on-rails/#comment-175 Spike Fri, 13 Jun 2008 21:44:47 +0000 http://stuff-things.net/2008/02/05/encrypting-lots-of-sensitive-data-with-ruby-on-rails/#comment-175 Yes, you'd use a :text column if you are Base64 encoding the encrypted data. With many databases a :binary column would likely work as well, but I haven't tested it. The thing you <em>can't</em> do is use a :string column. A :string is limited to 255 characters which is too small to hold data the encrypted data once it's encoded with Base64. If you are <em>not</em> using Base64 then you should use :binary. Yes, you’d use a :text column if you are Base64 encoding the encrypted data. With many databases a :binary column would likely work as well, but I haven’t tested it. The thing you can’t do is use a :string column. A :string is limited to 255 characters which is too small to hold data the encrypted data once it’s encoded with Base64.

If you are not using Base64 then you should use :binary.

]]> Comment on Encrypting Lots of Sensitive Data with Ruby (on Rails) by Technosophos http://stuff-things.net/2008/02/05/encrypting-lots-of-sensitive-data-with-ruby-on-rails/#comment-174 Technosophos Fri, 13 Jun 2008 20:59:38 +0000 http://stuff-things.net/2008/02/05/encrypting-lots-of-sensitive-data-with-ruby-on-rails/#comment-174 If the text is base64 encoded, shouldn't it be stored in a field type text, not binary? If the text is base64 encoded, shouldn’t it be stored in a field type text, not binary?

]]> Comment on Quick and Dirty cropping images with attachment_fu by Paul Sturgess http://stuff-things.net/2008/02/21/quick-and-dirty-cropping-images-with-attachment_fu/#comment-135 Paul Sturgess Sat, 03 May 2008 18:19:33 +0000 http://stuff-things.net/2008/02/21/quick-and-dirty-cropping-images-with-attachment_fu/#comment-135 Thanks a lot for this. Works a treat. I also added in the line: <code>img.strip!</code> before the if statement. This just strips out the colour profile information and makes images a lot smaller :-) Thanks a lot for this. Works a treat.

I also added in the line:

img.strip!

before the if statement. This just strips out the colour profile information and makes images a lot smaller :-)

]]> Comment on Encrypting Lots of Sensitive Data with Ruby (on Rails) by Spike http://stuff-things.net/2008/02/05/encrypting-lots-of-sensitive-data-with-ruby-on-rails/#comment-123 Spike Tue, 15 Apr 2008 23:02:19 +0000 http://stuff-things.net/2008/02/05/encrypting-lots-of-sensitive-data-with-ruby-on-rails/#comment-123 I'm using OpenSSL 0.9.7l on Leopard. I've also tested it with 0.9.8e, and 0.9.8g on other systems. How are you storing the encrypted data? If you are using Rails with SQLite you may run into problems with it's, shall we say, interesting handling of binary data. You'll at least want to make sure your column is :binary and you might want to Base64 encode it to be safe. Feel free to email me some code if you'd like me to try and debug it. I’m using OpenSSL 0.9.7l on Leopard. I’ve also tested it with 0.9.8e, and 0.9.8g on other systems.

How are you storing the encrypted data? If you are using Rails with SQLite you may run into problems with it’s, shall we say, interesting handling of binary data. You’ll at least want to make sure your column is :binary and you might want to Base64 encode it to be safe.

Feel free to email me some code if you’d like me to try and debug it.

]]> Comment on Encrypting Lots of Sensitive Data with Ruby (on Rails) by Michael http://stuff-things.net/2008/02/05/encrypting-lots-of-sensitive-data-with-ruby-on-rails/#comment-121 Michael Tue, 15 Apr 2008 22:11:14 +0000 http://stuff-things.net/2008/02/05/encrypting-lots-of-sensitive-data-with-ruby-on-rails/#comment-121 I'm having the same padding check failed error as well. I'm using Leopard. What version of OpenSSL are you using in the tutorial? Other sites are saying there are issues with the public key encrypting the data incorrectly. Thoughts? I’m having the same padding check failed error as well.

I’m using Leopard. What version of OpenSSL are you using in the tutorial?

Other sites are saying there are issues with the public key encrypting the data incorrectly.

Thoughts?

]]> Comment on Quick and Dirty cropping images with attachment_fu by Spike http://stuff-things.net/2008/02/21/quick-and-dirty-cropping-images-with-attachment_fu/#comment-118 Spike Wed, 09 Apr 2008 20:16:13 +0000 http://stuff-things.net/2008/02/21/quick-and-dirty-cropping-images-with-attachment_fu/#comment-118 Shan, I haven't tried it in production, but the following should work: <code> i = User.image i.create_or_update_thumbnail(i.create_temp_file,:thumb, 'crop: 100x100') </code> It will use the overridden resize method to crop the image, and update the size of the thumbnail in the database. Shan, I haven’t tried it in production, but the following should work:


i = User.image
i.create_or_update_thumbnail(i.create_temp_file,:thumb, 'crop: 100x100')

It will use the overridden resize method to crop the image, and update the size of the thumbnail in the database.

]]> Comment on Quick and Dirty cropping images with attachment_fu by Shan http://stuff-things.net/2008/02/21/quick-and-dirty-cropping-images-with-attachment_fu/#comment-115 Shan Sun, 06 Apr 2008 10:08:45 +0000 http://stuff-things.net/2008/02/21/quick-and-dirty-cropping-images-with-attachment_fu/#comment-115 Do you have any idea how we could use this function to resize images that have already been stored. e.g If the user has the option to select the size of her avatar/thumbnail after uploading the original image. Do you have any idea how we could use this function to resize images that have already been stored.

e.g If the user has the option to select the size of her avatar/thumbnail after uploading the original image.

]]> Comment on Quick and Dirty cropping images with attachment_fu by Neil http://stuff-things.net/2008/02/21/quick-and-dirty-cropping-images-with-attachment_fu/#comment-112 Neil Sat, 05 Apr 2008 17:49:50 +0000 http://stuff-things.net/2008/02/21/quick-and-dirty-cropping-images-with-attachment_fu/#comment-112 Thanks for this, Spike. Works perfectly for me, and seems cleaner than the other suggestions for patching the rmagick_processor. Thanks for this, Spike. Works perfectly for me, and seems cleaner than the other suggestions for patching the rmagick_processor.

]]> Comment on Encrypting Sensitive Data with Ruby (on Rails) by Encrypting Login Password without SSL in Ruby on Rails « i am josh http://stuff-things.net/2007/06/11/encrypting-sensitive-data-with-ruby-on-rails/#comment-101 Encrypting Login Password without SSL in Ruby on Rails « i am josh Tue, 18 Mar 2008 03:05:06 +0000 http://stuff-things.net/2007/06/11/encrypting-sensitive-data-with-ruby-on-rails/#comment-101 [...] Encrypting Sensitive Data with Ruby (on Rails)   [...] [...] Encrypting Sensitive Data with Ruby (on Rails)   [...]

]]> Comment on Encrypting Lots of Sensitive Data with Ruby (on Rails) by links for 2008-03-12 « Bloggitation http://stuff-things.net/2008/02/05/encrypting-lots-of-sensitive-data-with-ruby-on-rails/#comment-100 links for 2008-03-12 « Bloggitation Wed, 12 Mar 2008 00:18:36 +0000 http://stuff-things.net/2008/02/05/encrypting-lots-of-sensitive-data-with-ruby-on-rails/#comment-100 [...] Encrypting Lots of Sensitive Data with Ruby (on Rails) (tags: ruby rails security crypto programming) [...] [...] Encrypting Lots of Sensitive Data with Ruby (on Rails) (tags: ruby rails security crypto programming) [...]

]]>