Crack it & Get recruited by British spy headquarters GCHQ.

[Christy]

GCHQ Recruitment Test Stage 1

http://www.canyoucrackit.co.uk/

eb 04 af c2 bf a3 81 ec  00 01 00 00 31 c9 88 0c
0c fe c1 75 f9 31 c0 ba  ef be ad de 02 04 0c 00
d0 c1 ca 08 8a 1c 0c 8a  3c 04 88 1c 04 88 3c 0c
fe c1 75 e8 e9 5c 00 00  00 89 e3 81 c3 04 00 00
00 5c 58 3d 41 41 41 41  75 43 58 3d 42 42 42 42
75 3b 5a 89 d1 89 e6 89  df 29 cf f3 a4 89 de 89
d1 89 df 29 cf 31 c0 31  db 31 d2 fe c0 02 1c 06
8a 14 06 8a 34 1e 88 34  06 88 14 1e 00 f2 30 f6
8a 1c 16 8a 17 30 da 88  17 47 49 75 de 31 db 89
d8 fe c0 cd 80 90 90 e8  9d ff ff ff 41 41 41 41

Source:http://www.guardian.co.uk/media/2011...ter-hackers-ad
Logic behind the scheme: http://www.geeknative.com/23657/is-big-money-science-behind-can-you-crack-it




---------- Post added at 11:16 AM ---------- Previous post was at 11:07 AM ----------

Spoiler alert: Hints


"Qvfnffrzoyr(32 ovg) gb trg nffrzoyl vafgehpgvbaf.
Ybbx sbe qngn jevgr zrzbel ybpngvba.
Srgpu zrzbel nqqerff naq ernq nf fgevat.


Gung vf lbhe nafjre."


To reveal hint, go to the link below & Copy paste the hint in Quotes.
http://rumkin.com/tools/cipher/rot13.php

[ted]

after watching the movie Mercury Rising i think i will stay well clear of this
http://www.imdb.com/title/tt0120749/

[Christy]

. These guys have advertised inside, Tom Clancy's Splinter Cell Double Agent. Hows that for targeted advertising.

There a Stage 2 cipher after Stage 1.

[tejaswi]

I wish I could...

[Bearcat]

Hey, maybe if I cracked the code, they would cast me as the new "007" in all future James Bond movies.

[tangomouse]

here is the answer Pr0t3ct!on#cyber_security@12*12.2011+




Ps. It's program code!

[ted]

Hey, maybe if I cracked the code, they would cast me as the new "007" in all future James Bond movies.

I hope not we would miss you on the forum mate

[Bearcat]

I hope not we would miss you on the forum mate

No worries mate, I could always bring my trusty laptop along with me, so I could keep you up to date on my "new adventures".

[Christy]

http://www.canyoucrackit.co.uk/15b43...d525e5d0b20.js

//--------------------------------------------------------------------------------------------------//// stage 2 of 3//// challenge:// reveal the solution within VM.mem//// disclaimer:// tested in ie 9, firefox 6, chrome 14 and v8 shell (http://code.google.com/apis/v8/build.html),// other javascript implementations may or may not work.////--------------------------------------------------------------------------------------------------var VM = { cpu: { ip: 0x00, r0: 0x00, r1: 0x00, r2: 0x00, r3: 0x00, cs: 0x00, ds: 0x10, fl: 0x00, firmware: [0xd2ab1f05, 0xda13f110] }, mem: [ 0x31, 0x04, 0x33, 0xaa, 0x40, 0x02, 0x80, 0x03, 0x52, 0x00, 0x72, 0x01, 0x73, 0x01, 0xb2, 0x50, 0x30, 0x14, 0xc0, 0x01, 0x80, 0x00, 0x10, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ], exec: function() { // virtual machine architecture // ++++++++++++++++++++++++++++ // // segmented memory model with 16-byte segment size (notation segffset) // // 4 general-purpose registers (r0-r3) // 2 segment registers (cs, ds equiv. to r4, r5) // 1 flags register (fl) // // instruction encoding // ++++++++++++++++++++ // // byte 1 byte 2 (optional) // bits [ 7 6 5 4 3 2 1 0 ] [ 7 6 5 4 3 2 1 0 ] // opcode - - - // mod - // operand1 - - - - // operand2 - - - - - - - - // // operand1 is always a register index // operand2 is optional, depending upon the instruction set specified below // the value of mod alters the meaning of any operand2 // 0: operand2 = reg ix // 1: operand2 = fixed immediate value or target segment (depending on instruction) // // instruction set // +++++++++++++++ // // Notes: // * r1, r2 => operand 1 is register 1, operand 2 is register 2 // * movr r1, r2 => move contents of register r2 into register r1 // // opcode | instruction | operands (mod 0) | operands (mod 1) // -------+-------------+------------------+----------------- // 0x00 | jmp | r1 | r2:r1 // 0x01 | movr | r1, r2 | rx, imm // 0x02 | movm | r1, [ds:r2] | [ds:r1], r2 // 0x03 | add | r1, r2 | r1, imm // 0x04 | xor | r1, r2 | r1, imm // 0x05 | cmp | r1, r2 | r1, imm // 0x06 | jmpe | r1 | r2:r1 // 0x07 | hlt | N/A | N/A // // flags // +++++ // // cmp r1, r2 instruction results in: // r1 == r2 => fl = 0 // r1 < r2 => fl = 0xff // r1 > r2 => fl = 1 // // jmpe r1 // => if (fl == 0) jmp r1 // else nop throw "VM.exec not yet implemented"; } };//--------------------------------------------------------------------------------------------------try{ VM.exec();}catch(e){ alert('\nError: ' + e + '\n');}//--------------------------------------------------------------------------------------------------

---------- Post added at 12:07 PM ---------- Previous post was at 12:02 PM ----------

http://nakedsecurity.sophos.com/2011/12/02/online-code-breaking-test-could-get-you-a-job-at-gchq/



---------- Post added at 12:08 PM ---------- Previous post was at 12:07 PM ----------

Also:http://www.canyoucrackit.co.uk/QkJCQ...0SsbEcYR78jKLw