CRACK Solution

EIGHT WIDE

CRACK length gate

In-game screenshot of EIGHT WIDE
In-game view
FamilyCRACK Graph0.035 DifficultyTrivial Ring01 IDt02_length

Prerequisites

BLINK

Unlocks

DC OFFSET

Accepted input PASSWORD
Techniquelength gate Rulenonzero SamplePASSWORD

Walkthrough

Recover the accepted input below, then submit it to the CRACK verifier.

Reject Samples

  • SHORT
  • TOOLONGPASS
  • NINELETTER
Verifier Listing 
; t02_length: length gate: the input must be exactly 8 bytes long, whatever
; the bytes are. Technique: recognizing a pure length check. r0 = 1 on accept.
; Accept rule: nonzero.

        len   r1            ; r1 = input length (0..255)
        cmp   r1, 8
        jz    ok
        mov   r0, 0
        ret
ok:     mov   r0, 1
        ret