Didactic Feedback Cipher Long 3

[stabat]

That depends entirely on the compiler used. In my environment sizeof(long) is 4 bytes. You should use a long long if you want a guaranteed size of at least 8.

even if I reply one year later, I have to say that it depends on the computer architecture the compiler runs on, and not from the compiler itself

[laz0r]

Can someone confirm for me that:

16908034*33489918 + 84606743 == 118096409 in this endianness?

[laz0r]

*bump* - another candidate I get is 67633157 for the answer to my question above.

[dangermouse]

if you are using Python, you can probably solve the challenge straight away. But in my case I was using Freepascal, and the problem was the multiplication (not the modulo thing) which overflowed differently. This bignum library helped:
http://home.netsurf.de/wolfgang.ehrhardt/mp_intro.html

[AMindForeverVoyaging]

if you are using Python, you can probably solve the challenge straight away.

Python has built-in support for hacker.org Didactic challenges? That's seriously cool!

[brahim]

Hello

Are all characters in the plaintext ASCII (7 bits)?

[dangermouse]

Yes, all ASCII are below 128 and represent normal chars. No crazy char in there as usual.

[Isaev]

And what means (txt -> txt[i + 3]) ? more precisely ->

[SemmZemm]

Encoded string is 220 symbols length = 110 bytes, not divisible by 4. Where did last 2 bytes (b40e) come?

[mickeyandkaka]

test
I just want to see my uid