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45 lines
1.9 KiB
Markdown
45 lines
1.9 KiB
Markdown
---
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title: CodeStar
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layout: default
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created: 2009-02-02 21:59:35 +0100
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updated: 2009-02-02 21:59:35 +0100
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toc: false
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tags:
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- know-how
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- software
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- encryption
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---
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**Homepage:** [codestar.de](http://www.codestar.de/)
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There's a software called *CodeStar* which [claims to use the RSA-algorithm](http://www.codestar.de/html/menu/startseite_s2_frameset.html)
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to encrypt up to 8 of your passwords using a single password (you should remember). It then lets you print out a
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colourful card which is the size of a credit card for you to have all your important passwords at hand when you're on
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the road.
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The bad thing: There's nothing encrypted. You just have to think of a password which consists of different letters.
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Then you type up to 8 different passwords which can be up to the length of your master password. These passwords are
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printed around the letters of your master password, e.g. the first letter of the first password is printed to the top
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left of the first letter of your master password. The 1st letter of the second password is printed to the top of the
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1st letter of the master password and so on. The unused fields are filled with random data.
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This then looks like this:
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So let's say your master password is `LINUXMASTER` (no duplicate letters allowed!) and your passwords or PINs are:
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`tEsT`, `secret`, `0815`, `4711` and `windowsuser`. To get one of the passwords, you'd follow the letters of your
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master password and find this: (random data omitted!)
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~~~
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ts0 Ee8 sc1 Tr5 e t
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L4 I7 N1 U1 X M A S T E R
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w i n d o w s u s e r
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~~~
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Since I think 20€ for such a piece of software (which claims to use the [RSA-Alogrithm](http://en.wikipedia.org/wiki/RSA)
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when it's not) is a bit too much, I spent 20-30 minutes in OpenOffice Calc and came up with this:
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**Download:** [codestar.ods]({{ site.url }}/assets/codestar.ods)
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