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May 23 2018

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neuro-anarchy (2008)
Tags: anarchy
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"KDE: i like it" wallpaper from 2008
Tags: 2008
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wheeled pegasos dragon. scribble from 2008 or earlier. the execution is a bit lame i guess but i still like the concept. ^^;
Tags: 2008
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bita, a lamprey mascot i made (2008) for ultraki, a sort of php wiki engine @nordern wrote. it's mouth was also the ultraki icon.
Reposted bynordern nordern
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playing with braids/knots (old stuff (from 2012) i found in my files)
Tags: braids knots 2012
Reposted bysofiasRekrut-Kskizzo
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8th iteration of the Morse-Thue sequence along the Hilbert curve.
Tags: morse
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first 6 iterations of the Morse-Thue sequence along the Hilbert curve. just found it while browsing through my old files.

April 14 2018

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my research concluded that the background of VAPORCHESS蒸気チェス wasn't VAPOR蒸気 enough. #fixed #pureCSS
Reposted fromsofias sofias
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here is another picture of the triangular grid layout for subterranian highways under a city. unfortunaltely it seems like it isn't quite balanced: the roads northwards have only half the number of ramps than the roads southwards*, and same for the green and red roads.. not sure how much of a problem this would practically be, but it bothers me a bit..

on the other hand, it looks cool and that's all that matters. ^^

edit: *: i now realized that they actually have the same number of ramps, just in different configurations. which doesn't bother me, actually..

Reposted fromsofias sofias

March 28 2015

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logo scheme for my current computers: ω, λ and ε.

ω: small desktop machine AMD A10-5800K, 8 GiB of ram)
λ: pink Sony Vaio Fit 11A
ε: white Samsung Galaxy Nexus, still :P
Reposted fromsofias sofias

March 21 2015


(7Z, 25.8 KB)

these are the icons of the duochrome icon scheme i made in 2013. everyone is free to use, copy and modify them, and i would love to hear about that. :)
Reposted bysofias sofias

October 23 2014

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and this was my windows (still XP / NT 5.1) after i adapted the NoNamePro windows theme, set my system font to Times New Roman and built a little LiteStep theme based on Devastation. (i added the status bar, and later a little "m" button for the start menu, tho.. :P )
Reposted fromsofias sofias

August 17 2014

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so i found a dvd i burned. yep, a dvd. it's really that old. this is was i made my kde look like in 2005. including splash screen.

also i still had my os speak german to me. :P
Reposted fromsofias sofias
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that's my kde-theme "phloristik" i'm using it since mepis 7.0 is out
Reposted fromsofias sofias

May 01 2014

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analog binary/hexadecimal watch
Reposted fromsofias sofias

January 04 2014

protecting password input with acoustic one-time-pads

think of a situation where you sit in the tram next to someone and you want to unlock your portable device. it’s pretty stupid that anyone (including surveillance cameras) who watches you typed can basically see your password. the same problem occurs on stationary computers when you are (*gasp*) not alone in the room.
this is a proposal of a fairly simple way of encrypting a password on it’s way from your brain to the computer.
here is my solution:
  1. for easy in-brain encryption we recommend a hexadecimal numeric password. let’s take “5A491C6E” as an example. of course, important passwords should be longer. a hexadecimal keypads offer decent data rate on a small area and it’s regularity helps visualizing the encryption.
  2. when being prompted to enter the password (for example tapping on the “enter password” field) you are given a random digit over the headphone. that is the key for encrypting the first digit.
  3.  you remember the first digit of you password (5) and add it to the digit you just got over your headphone (let’s say it’s 2) and add them (7). don’t carry anything, if you get “13″ just enter the “3″.
  4. you type in your result on the keypad. you recieve the next random digit to encrypt the next digit of the password and so on. with some practice, this should go pretty quickly.
  5. as you type it in, the device can decrypt each digit with the key it gave you. you hit enter and you’re finished.
the key you recieve acts as a one-time-pad, which is, in itself, resistant to cryptoanalysis. much more importantly, it is easily performed in the head.
the key might be spoken by voice synthesis or might be encoded with tones in some way.
obviously everyone who hears what you’re hearing and sees what you type can still decypher your password.
it should be transmitted as quietly as possible. sound-insulating headphones are very advantageous.
other possible attack vectors would be the head phone cable’s electromagnetic emmissions or involuntary gestures or eye movements that may perhaps reveal the key or password (training should help with that). but any of these measures are much harder than watching a person type.
and, of course, insecure hardware and software (in particular proprietary operating systems) can offer volunerabilities or back doors on their own.
this image may help illustrate the process:
Reposted fromsofias sofias

November 24 2013

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this is a preview for icons i am been working on. i am thinking of raising a little money to make it into a full theme. the result should be public domain, tho. feedback and suggestions (especially on the money-making part) are greatly appreciated.
Reposted fromsofias sofias

November 05 2013

die wahlergebnisse frustrierten mich, d'rum machte ich wahlplakate.
jetzt sind sie fertig, mehr oder weniger.
Reposted fromsofias sofias

February 07 2013

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m-theorie got a new logo. for reasons.
Reposted bysofias sofias
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my computers* so far (what? of course i made logos for them…)

#0: unnamed (40 Mhz i386, 8 MiB Ram; 1999 for christmas)
#1: OSCAR (not named my me, pentium 200 MHz, 64 MiB ram, gift, 2000?)
#2: unnamed (pentium 166 MHz, gift, 2001?)
#3: digitaldroge (athlon 1 Ghz, 512 MiB RAM, bought 2002 with confirmation money (most  expensive machine i ever bought))
#4: glider (GP2X F100, 2007)
#5: m-theorie (i was originally planning to call it "meritokratie", changed my mind as it arrived; asus booksize barebone, athlon64 2x 2.6 GHz, 2008)
#6: planck (ideapad, with some lame atom cpu 1.5 GiB RAM (upgraded), 2010)
#7: tensor (eeePC T10MT or something, slightly better atom, 2 GiB ram (upgraded), 2011)
#8: ε (galaxy nexus, 2012)

*: general pupose, thus excluding 2 8-bit consoles, calculators and 2 dumbphones (both gifts that i owned only for a few months each, due to their utter pointlessness)
Reposted fromsofias sofias
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