/prog/ - Getting a foot in the door

Name: Anonymous 2013-05-20 21:03

I'm a pretty new programmer-about halfway through Sweigart's new book on Python and Cryptography. My question is, when the hell do I get to DO something? I can go through exercises and analyze how different cipher programs are written, but I'm really yearning to actually create or contribute to something. Any input?

Name: Anonymous 2013-05-20 21:23

I'm a pretty new symmetric cipher. Any input?

Name: Anonymous 2013-05-20 22:09

Getting a foot up your ignorant ass

Name: Anonymous 2013-05-20 22:46

build a cipher
break it
rinse and repeat

Name: Anonymous 2013-05-20 22:56

I kept myself entertained for a couple of years doing just that... No Internet! ^^

Name: Anonymous 2013-05-20 23:00

Xor()?
Nah i built my own!

Name: Anonymous 2013-05-20 23:03

...which reminds me..
Is a system linear simply if a#b#a = b (where # can be any system/operation)..?

Name: Anonymous 2013-05-20 23:03

You have to program on your own, no book can teach you how to do it. Not entirely any way imo..

Name: Anonymous 2013-05-20 23:04

Look, if you don't have PhD don't bother trying to get your foot in the door with cryptography. The most you will ever do is reliably implement a mathematician's algorithm.

Literally any other field is going to be more rewarding. You love mathy stuff? Work on some algorithmic geometry creation. Work on data mining the news. But a home grown cipher is abso-fucking-useless to everyone.

Name: Anonymous 2013-05-20 23:07

[or in other words]
you could define an Xor-like function (or many) for say, base 26?

Name: Anonymous 2013-05-20 23:08

>>9
until tommorow when the war began... ;D

Name: Anonymous 2013-05-20 23:13

...lol i'll just log into my secure email ^^
military viruses nooooo

Name: Anonymous 2013-05-20 23:19

god i hate the smiley retard more than i hate nikita

Name: Anonymous 2013-05-20 23:19

...and they're probably(? probably not even probably!) already active!

also a small /prog/ challenge:
Calculate the number of Xor-likes for base 26

Name: Anonymous 2013-05-20 23:23

...not sure if this is right, seems pretty large.. but still i got 49229914688306352000000

Name: Anonymous 2013-05-20 23:38

dear ^^-retard,

please die in a fire

signed,
the internet

Name: Anonymous 2013-05-20 23:45

y u so hayful, bullyboy? ^^

Name: the matedor 2013-05-20 23:51

*whips bully on the ass with a red towel*
Olay!

Name: Anonymous 2013-05-21 0:14

OP here: The career doesn't necessarily have to be consisting of cryptography, I just thought that it was slightly relevant as being the book I'm currently using to learn. At what point do i go "Oh I am now ready to go on Github and contribute to shit?"

Name: Anonymous 2013-05-21 0:28

>>19
If you still think github is an appropriate outlet for the publication of your original cryptographic material, you are not ready to contribute to shit. You publish a paper and the accompanying code on the side, not the other way around.

Name: Anonymous 2013-05-21 0:38

>>20
Then how do I get to that point?

Name: Anonymous 2013-05-21 0:40

hmm.. i think i missed a couple of steps in my calc =. just did the easy bit ^^

Name: Anonymous 2013-05-21 0:41

study lots of other peoples work
you'll also need some original research

Name: Anonymous 2013-05-21 1:13

>>13
Good then maybe you'll finally fucking leave, kike.

Name: Anonymous 2013-05-21 1:21

hmm.. so what did i calculate then?
i think it is the number of the first (1/26) mapping, so it might only be a distant lower bound?

calculated as !26 / 2^13

Name: Anonymous 2013-05-21 1:28

...dividing by 2^13 should put it into a state where all mappings have a period of two ;) ie a -> x -> a

Name: Anonymous 2013-05-21 1:30

>>24
I don't take orders from unwashed ruskies.

Name: Anonymous 2013-05-21 1:32

what about a tricyclic system? ;D

Name: Anonymous 2013-05-21 1:47

...if you use base 39.. it could handle numeric digits and very basic punctuation =)
gives a !39 / 3^13 base... but filling out the table (another 38 maps without clashes) seems a bit tricky.. might not even work for period 3?!

Name: Anonymous 2013-05-21 1:59

try a base 4/period 2 system i guess...
So ABCD.. !4 / 4 = 3*2 = 6 ?
(A)AB / AC / AD ?

A#A=B A#B=A A#C=D A#D=C
B#A=A ????? ????? ?????
C#A=D ????? ????? C#D=A
D#A=C ????? D#C=A ?????

Name: Anonymous 2013-05-21 2:06

hack the gibson

Name: Anonymous 2013-05-21 2:16

B#B = C or D?

B#B=C B#C=B B#D=D
C#B=B C#C=C C#D=A
D#B=D D#C=A D#D=B

Name: Anonymous 2013-05-21 2:22

...that went pretty well =)

Name: Anonymous 2013-05-21 2:46

...probably a bit too well ;D bet it doesn't scale correctly..
but still, not bad eh.. even a two-bit pseudo-linear system can avoid the identity map ^^

Name: Anonymous 2013-05-21 2:50

though i guess since C#C=C, it should be 4*3 combinations ? (A#A is allowed to equal A?)

Name: Anonymous 2013-05-21 3:12

>>27
Yet again you fail to be able to tell me from Nikita.
Maybe one day you'll- oh wait, no you won't because you're a fucking retarded kike.

Name: Anonymous 2013-05-21 3:18

>>36
I don't take orders from obese americunts.

Name: Anonymous 2013-05-21 3:20

>>36
you fail to be able to
Whoa there buddy, that's some advanced sentence structure you've got there!

Name: Anonymous 2013-05-21 3:26

base 3 period 3?
~!3 / 3? = 2 lol
(A)AB / AC
A#A=B A#B=C A#C=A
B#A=C B#B=A B#C=B
C#A=A C#B=B C#C=C

Name: Anonymous 2013-05-21 3:54

>>37
Good then that means you'll take orders from me then.
>>38
Yeah, too advanced for you.

Name: Anonymous 2013-05-21 6:42

i actually fucking hate the ^^ retard but love nikita

Name: Anonymous 2013-05-21 7:17

still kind of feel bad =. but hey, she had a picture taken with some guy back on argentina....

Name: Anonymous 2013-05-21 7:29

>>21
Pick something interesting and write a grant so you can research it.

Name: Anonymous 2013-05-21 9:51

Yeah, like http://simonsfoundation.org/funding/funding-opportunities/autism-research-initiative-sfari/

Name: Anonymous 2013-05-21 14:05

shitting on the floor

Name: Anonymous 2013-05-21 21:48

...Even when we were together we were miles apart, and i guess i was kind of scared... what if when we finally met it didn't work out? Or if we never did meet? When would i get a cuddle? =(

Name: Anonymous 2013-05-21 23:56

Now she hates me for the love we once shared..
But don't call me selfish, for that sacrifice i suffered too

Name: Anonymous 2013-05-22 0:37

... http://www.sevenreflections.com/cards-of-destiny/cards/seven-of-diamonds/
that bloody card.. i tell ya
i guess the idea was that i had to leave in order to be with her... i was never going to get there with no money..
but her heart broke... and then once again money was worthless..

Getting a foot in the door

1 Name: Anonymous 2013-05-20 21:03

2 Name: Anonymous 2013-05-20 21:23

3 Name: Anonymous 2013-05-20 22:09

4 Name: Anonymous 2013-05-20 22:46

5 Name: Anonymous 2013-05-20 22:56

6 Name: Anonymous 2013-05-20 23:00

7 Name: Anonymous 2013-05-20 23:03

8 Name: Anonymous 2013-05-20 23:03

9 Name: Anonymous 2013-05-20 23:04

10 Name: Anonymous 2013-05-20 23:07

11 Name: Anonymous 2013-05-20 23:08

12 Name: Anonymous 2013-05-20 23:13

13 Name: Anonymous 2013-05-20 23:19

14 Name: Anonymous 2013-05-20 23:19

15 Name: Anonymous 2013-05-20 23:23

16 Name: Anonymous 2013-05-20 23:38

17 Name: Anonymous 2013-05-20 23:45

18 Name: the matedor 2013-05-20 23:51

19 Name: Anonymous 2013-05-21 0:14

20 Name: Anonymous 2013-05-21 0:28

21 Name: Anonymous 2013-05-21 0:38

22 Name: Anonymous 2013-05-21 0:40

23 Name: Anonymous 2013-05-21 0:41

24 Name: Anonymous 2013-05-21 1:13

25 Name: Anonymous 2013-05-21 1:21

26 Name: Anonymous 2013-05-21 1:28

27 Name: Anonymous 2013-05-21 1:30

28 Name: Anonymous 2013-05-21 1:32

29 Name: Anonymous 2013-05-21 1:47

30 Name: Anonymous 2013-05-21 1:59

31 Name: Anonymous 2013-05-21 2:06

32 Name: Anonymous 2013-05-21 2:16

33 Name: Anonymous 2013-05-21 2:22

34 Name: Anonymous 2013-05-21 2:46

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39 Name: Anonymous 2013-05-21 3:26

40 Name: Anonymous 2013-05-21 3:54

41 Name: Anonymous 2013-05-21 6:42

42 Name: Anonymous 2013-05-21 7:17

43 Name: Anonymous 2013-05-21 7:29

44 Name: Anonymous 2013-05-21 9:51

45 Name: Anonymous 2013-05-21 14:05

46 Name: Anonymous 2013-05-21 21:48

47 Name: Anonymous 2013-05-21 23:56

48 Name: Anonymous 2013-05-22 0:37

Name: Anonymous 2013-05-20 21:03

Name: Anonymous 2013-05-20 21:23

Name: Anonymous 2013-05-20 22:09

Name: Anonymous 2013-05-20 22:46

Name: Anonymous 2013-05-20 22:56

Name: Anonymous 2013-05-20 23:00

Name: Anonymous 2013-05-20 23:03

Name: Anonymous 2013-05-20 23:03

Name: Anonymous 2013-05-20 23:04

Name: Anonymous 2013-05-20 23:07

Name: Anonymous 2013-05-20 23:08

Name: Anonymous 2013-05-20 23:13

Name: Anonymous 2013-05-20 23:19

Name: Anonymous 2013-05-20 23:19

Name: Anonymous 2013-05-20 23:23

Name: Anonymous 2013-05-20 23:38

Name: Anonymous 2013-05-20 23:45

Name: the matedor 2013-05-20 23:51

Name: Anonymous 2013-05-21 0:14

Name: Anonymous 2013-05-21 0:28

Name: Anonymous 2013-05-21 0:38

Name: Anonymous 2013-05-21 0:40

Name: Anonymous 2013-05-21 0:41

Name: Anonymous 2013-05-21 1:13

Name: Anonymous 2013-05-21 1:21

Name: Anonymous 2013-05-21 1:28

Name: Anonymous 2013-05-21 1:30

Name: Anonymous 2013-05-21 1:32

Name: Anonymous 2013-05-21 1:47

Name: Anonymous 2013-05-21 1:59

Name: Anonymous 2013-05-21 2:06

Name: Anonymous 2013-05-21 2:16

Name: Anonymous 2013-05-21 2:22

Name: Anonymous 2013-05-21 2:46

Name: Anonymous 2013-05-21 2:50

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Name: Anonymous 2013-05-21 3:18

Name: Anonymous 2013-05-21 3:20

Name: Anonymous 2013-05-21 3:26

Name: Anonymous 2013-05-21 3:54

Name: Anonymous 2013-05-21 6:42

Name: Anonymous 2013-05-21 7:17

Name: Anonymous 2013-05-21 7:29

Name: Anonymous 2013-05-21 9:51

Name: Anonymous 2013-05-21 14:05

Name: Anonymous 2013-05-21 21:48

Name: Anonymous 2013-05-21 23:56

Name: Anonymous 2013-05-22 0:37