Search found 40 matches

by Andr3w
Wed Mar 04, 2009 6:29 pm
Forum: Challenges
Topic: ... concerning RSA
Replies: 3
Views: 7414

thank you ... in the meantime, i found a program named "Crypto anywhere" which is able to generate key-pairs and to en/decrypt texts ..

I think it isn't the worst solution, is it?
by Andr3w
Wed Mar 04, 2009 2:53 pm
Forum: Challenges
Topic: ... concerning RSA
Replies: 3
Views: 7414

... concerning RSA

Do anyone of you know where to download a program (freeware) to create a RSA-specified Key-pair and to encrypt messages which are RSA-protected. I hope you don't understand me wrong: I don't want to crack RSA-protected files (which is impossible anyway), but I want to use RSA in the normal way. Than...
by Andr3w
Sat Feb 28, 2009 11:53 am
Forum: Challenges
Topic: Prime Factorisation
Replies: 2
Views: 7319

You're great, thank you!

In the german wiki the table is missing ...
by Andr3w
Fri Feb 27, 2009 3:50 pm
Forum: Challenges
Topic: Prime Factorisation
Replies: 2
Views: 7319

Prime Factorisation

Last time I informed me a little bit about the RSA cipher. After raeding a lot of papers I really have to ask a question: Does anybody know whats the rate of complexity/the time needed by a computer to solve a basic calculating operation to the time needed solving another basic arithmetic operation?...
by Andr3w
Fri Feb 27, 2009 10:39 am
Forum: Challenges
Topic: Telecran
Replies: 19
Views: 32053

I made a perhaps remarkable detection:
If I copy the area of the sourcecode of the page which contains the pics in a texteditor I get breaks in the list every 17th line.
could sound a little bit paranoid but: could this mean anything? ^^
My problem is: 17 is a prime ...
by Andr3w
Mon Dec 29, 2008 1:09 pm
Forum: Challenges Solved
Topic: ipod fun
Replies: 7
Views: 974

this challenge was great ^^
by Andr3w
Sat Dec 27, 2008 1:49 pm
Forum: Challenges
Topic: iPod Fun
Replies: 13
Views: 19053

but just to menshion the i-pod connection a second time:

anyone an idea what's the hint here?

or if it is a hint anyway ?
by Andr3w
Wed Dec 17, 2008 1:27 pm
Forum: Challenges
Topic: A Life Worth Living Challenge
Replies: 28
Views: 29507

what am I doing wrong ?

.. or could it be that the challenge was changed until the last posts in this forum ?

at generation 4312 my population is about 500 ...
by Andr3w
Sun Dec 14, 2008 9:05 pm
Forum: Challenges
Topic: Didactic Feedback Cipher
Replies: 23
Views: 45180

oh ...wtf i'm sure that i've read that js don't have a buildt-in xor ... so i ever tried and did write hundreds of lines to convert and reconvert and even calculate xor bitwise "manually" with giant loops ... thank you for this hint ... it makes javascript a more acceptable speech to me th...
by Andr3w
Thu Dec 11, 2008 3:02 pm
Forum: Challenges
Topic: Didactic Feedback Cipher Long 3
Replies: 24
Views: 29184

This hint is really helping me

great ... thanks
by Andr3w
Wed Dec 10, 2008 9:58 am
Forum: Challenges
Topic: Didactic Feedback Cipher Long 3
Replies: 24
Views: 29184

^^ thanks

i will try to found a c++ class to deal with bigger integers ...
by Andr3w
Wed Dec 10, 2008 7:39 am
Forum: Challenges
Topic: Didactic Feedback Cipher Long 3
Replies: 24
Views: 29184

you're right, but in this challenge i need more than 8byte integers ...

% 0x100000000 is slightly more than 8bytes =(
by Andr3w
Tue Dec 09, 2008 10:18 pm
Forum: Challenges
Topic: Didactic Feedback Cipher Long 3
Replies: 24
Views: 29184

I cannot solve this challenge ...

So I hope anybody can give me a hint ...

I was trying to solve it with C++ ...

is there a way to handle integers greater than 4 bytes long ?

handle means + ^% and so on ....

by the way i'm an absolute beginner in C++!

thank you
by Andr3w
Tue Dec 02, 2008 8:58 pm
Forum: Challenges
Topic: Didactic Feedback Cipher Long 2
Replies: 21
Views: 38899

Another question:
I got a sentence ... but there is no password in it ...
its directly adressed to me ... but no password ...

could anyone please give me a hint ?
by Andr3w
Fri Nov 28, 2008 7:27 pm
Forum: Challenges
Topic: Didactic green?
Replies: 8
Views: 13310

i'm so sorry ... i thoght about the wrong challenge ...

with 32,46,44,39 youre right ... they're broken in hex ...

so you have to take the digits like they are ... looking up their meaning like you did with 32,46 and so on ... you're on the right way !