Security Through Obscurity
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Security Through Obscurity
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Brazucs
I have no idea what my avatar is.


Super Elite (Last Title)


Joined: 31 Mar 2004
Posts: 3349
Posted: 21 Jan 2006 01:01:08 am    Post subject:
Wo, crazy...

Code:
#include <stdio.h>
main(t,_,a)char *a;{return!0<t?t<3?main(-79,-13,a+main(-87,1-_,
main(-86,0,a+1)+a)):1,t<_?main(t+1,_,a):3,main(-94,-27+t,a)&&t==2?_<13?
main(2,_+1,"%s %d %d\n"):9:16:t<0?t<-72?main(_,t,
"@n'+,#'/*{}w+/w#cdnr/+,{}r/*de}+,/*{*+,/w{%+,/w#q#n+,/#{l,+,/n{n+,/+#n+,/#\
;#q#n+,/+k#;*+,/'r :'d*'3,}{w+K w'K:'+}e#';dq#'l \
q#'+d'K#!/+k#;q#'r}eKK#}w'r}eKK{nl]'/#;#q#n'){)#}w'){){nl]'/+#n';d}rw' i;# \
){nl]!/n{n#'; r{#w'r nc{nl]'/#{l,+'K {rw' iK{;[{nl]'/w#q#n'wk nw' \
iwk{KK{nl]!/w{%'l##w#' i; :{nl]'/*{q#'ld;r'}{nlwb!/*de}'c \
;;{nl'-{}rw]'/+,}##'*}#nc,',#nw]'/+kd'+e}+;#'rdq#w! nr'/ ') }+}{rl#'{n' ')# \
}'+}##(!!/")
:t<-50?_==*a?putchar(31[a]):main(-65,_,a+1):main((*a=='/')+t,_,a+1)
  :0<t?main(2,2,"%s"):*a=='/'||main(0,main(-61,*a,
"!ek;dc i@bK'(q)-[w]*%n+r3#l,{}:\nuwloca-O;m .vpbks,fxntdCeghiry"),a+1);}


Merry Xmas


P.S. We should have an Obsfucated Calculator Contest

Last edited by Guest on 21 Jan 2006 01:06:50 am; edited 1 time in total
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bukwirm


Member


Joined: 06 Dec 2005
Posts: 233
Posted: 21 Jan 2006 01:36:21 am    Post subject:
Quote:
P.S. We should have an Obsfucated Calculator Contest.


An idea for the next programming competion?

By the way, what does that program do?

EDIT: Take a look at this one. (read smr.hint) It really does work - I tried it.

Last edited by Guest on 21 Jan 2006 02:19:34 am; edited 1 time in total
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IAmACalculator
In a state of quasi-hiatus


Know-It-All


Joined: 21 Oct 2005
Posts: 1571
Posted: 21 Jan 2006 07:31:41 am    Post subject:
Brazucs wrote:
We should have an Obsfucated Calculator Contest
[post="67480"]<{POST_SNAPBACK}>[/post]

But that's not fair to us who don't know ASM! You could make an entire program written in opcodes...
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Brazucs
I have no idea what my avatar is.


Super Elite (Last Title)


Joined: 31 Mar 2004
Posts: 3349
Posted: 21 Jan 2006 12:01:41 pm    Post subject:
Well, it would be separated into catagories.

Quote:
By the way, what does that program do?


Something like this:
Output wrote:
On the first day of Christmas,
my true love sent to me
A partridge in a pear tree.

On the second day of Christmas,
my true love sent to me
Two turtle doves,
And a partridge in a pear tree.

On the third day of Christmas,
my true love sent to me
Three French hens,
Two turtle doves,
And a partridge in a pear tree.

On the fourth day of Christmas,
my true love sent to me
Four calling birds,
Three French hens,
Two turtle doves,
And a partridge in a pear tree.

On the fifth day of Christmas,
my true love sent to me
Five golden rings,
Four calling birds,
Three French hens,
Two turtle doves,
And a partridge in a pear tree.

On the sixth day of Christmas,
my true love sent to me
Six geese a-laying,
Five golden rings,
Four calling birds,
Three French hens,
Two turtle doves,
And a partridge in a pear tree.

On the seventh day of Christmas,
my true love sent to me
Seven swans a-swimming,
Six geese a-laying,
Five golden rings,
Four calling birds,
Three French hens,
Two turtle doves,
And a partridge in a pear tree.

On the eighth day of Christmas,
my true love sent to me
Eight maids a-milking,
Seven swans a-swimming,
Six geese a-laying,
Five golden rings,
Four calling birds,
Three French hens,
Two turtle doves,
And a partridge in a pear tree.

On the ninth day of Christmas,
my true love sent to me
Nine ladies dancing,
Eight maids a-milking,
Seven swans a-swimming,
Six geese a-laying,
Five golden rings,
Four calling birds,
Three French hens,
Two turtle doves,
And a partridge in a pear tree.

On the tenth day of Christmas,
my true love sent to me
Ten lords a-leaping,
Nine ladies dancing,
Eight maids a-milking,
Seven swans a-swimming,
Six geese a-laying,
Five golden rings,
Four calling birds,
Three French hens,
Two turtle doves,
And a partridge in a pear tree.

On the eleventh day of Christmas,
my true love sent to me
Eleven pipers piping,
Ten lords a-leaping,
Nine ladies dancing,
Eight maids a-milking,
Seven swans a-swimming,
Six geese a-laying,
Five golden rings,
Four calling birds,
Three French hens,
Two turtle doves,
And a partridge in a pear tree.

On the twelfth day of Christmas,
my true love sent to me
Twelve drummers drumming,
Eleven pipers piping,
Ten lords a-leaping,
Nine ladies dancing,
Eight maids a-milking,
Seven swans a-swimming,
Six geese a-laying,
Five golden rings,
Four calling birds,
Three French hens,
Two turtle doves,
And a partridge in a pear tree!
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DarkerLine
ceci n'est pas une |


Super Elite (Last Title)


Joined: 04 Nov 2003
Posts: 8328
Posted: 21 Jan 2006 12:36:21 pm    Post subject:
IAmACalculator wrote:
Brazucs wrote:
We should have an Obsfucated Calculator Contest  [post="67480"]<{POST_SNAPBACK}>[/post]

But that's not fair to us who don't know ASM! You could make an entire program written in opcodes... [post="67487"]<{POST_SNAPBACK}>[/post]
Basic provides so much more potential for obfuscated code.

About writing in opcodes... you can get so much more obfuscation if you write in the ASCII equivalents instead.

Last edited by Guest on 22 Jan 2006 12:52:10 pm; edited 1 time in total
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elfprince13
Retired


Super Elite (Last Title)


Joined: 11 Apr 2005
Posts: 3500
Posted: 02 Feb 2006 08:58:19 am    Post subject:
DarkerLine wrote:
IAmACalculator wrote:
Brazucs wrote:
We should have an Obsfucated Calculator Contest  [post="67480"]<{POST_SNAPBACK}>[/post]

But that's not fair to us who don't know ASM! You could make an entire program written in opcodes... [post="67487"]<{POST_SNAPBACK}>[/post]
Basic provides so much more potential for obfuscated code.

About writing in opcodes... you can get so much more obfuscation if you write in the ASCII equivalents instead.
[post="67499"]<{POST_SNAPBACK}>[/post]


I love Goto/Lbl :)


and I never comment my code....ever.
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IAmACalculator
In a state of quasi-hiatus


Know-It-All


Joined: 21 Oct 2005
Posts: 1571
Posted: 02 Feb 2006 07:16:10 pm    Post subject:
Heh. Same here (at least in my Z80 basic). I really should develop better habits, though...
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alexrudd
pm me if you read this


Bandwidth Hog


Joined: 06 Oct 2004
Posts: 2335
Posted: 02 Feb 2006 07:31:29 pm    Post subject:
eh, since when is commenting code good behaviour?

If you can't figure out what basic code does...
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DarkerLine
ceci n'est pas une |


Super Elite (Last Title)


Joined: 04 Nov 2003
Posts: 8328
Posted: 02 Feb 2006 10:21:16 pm    Post subject:
It's not always obvious.

A compromise between cutting down on program size and having comments is a .txt file on your computer with the source thoroughly commented.
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IAmACalculator
In a state of quasi-hiatus


Know-It-All


Joined: 21 Oct 2005
Posts: 1571
Posted: 02 Feb 2006 11:30:36 pm    Post subject:
alexrudd wrote:
If you can't figure out what basic code does...
[post="68686"]<{POST_SNAPBACK}>[/post]

For an 89 basic program

Code:
bleh(x,y)
rand(abs(when(x<y,x-y,y-x)-1))+when(x<y,x,y)-1

This is my replacement for the randint( function on the 83+. I know I couldn't figure it out with one glance (even though some on this forum could), so it's a good thing I actually labeled it 'randint' instead of 'bleh', and 'boundone' and 'boundtwo' instead of 'x' and 'y'. There is a degree of usefulness, however small, in keeping your basic code comprehensible.
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elfprince13
Retired


Super Elite (Last Title)


Joined: 11 Apr 2005
Posts: 3500
Posted: 02 Feb 2006 11:34:00 pm    Post subject:
should this be merged with the other topic on obfuscating? Im getting confused as too which topic has which posts...
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