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Sallama serial olarak “6” ve “0” -> [bpx hmemcpy] -> [F12] -> [F10] ->

00402C5F CALL 00404C60                <- ?
00402C64 TEST EAX,EAX
00402C66 JZ 00402CE5                  <- kotu cocuk
...
00402CE5 PUSH 00
00402CE7 PUSH 30
00402CE9 PUSH 004352C8
00402CEE CALL 004237F3                <- Hata

[bpx 402C5F] ->

00404C80 CMP DWORD PTR [ECX-08],0C    <- 12 digit mi ?
00404C84 JZ 00404C9B                  <- iyi cocuk

Sallama serial olarak 6 tane 60 yazalim -> “606060606060” ->

00404C9B PUSH EAX
00404C9C LEA ECX,[ESP+10]
00404CA0 CALL 0041CE9D
00404CA5 MOV ECX,[ESP+0C]             <- “606060606060”
00404CA9 MOV ESI,0000001A             <- esi = 1A
00404CAE MOV DL,[ECX]                 <- “6” <- 1. digit
00404CB0 MOV BL,[ECX+02]              <- “6” <- 3. digit
00404CB3 MOVSX EAX,BYTE PTR [ECX+03]  <- “0” <- 4. digit
00404CB7 MOV [ESP+09],DL              <- “6” <- 1. digit
00404CBB MOVSX EDX,BL                 <- “6”
00404CBE IMUL EAX,EDX                 <- 30 * 36 = A20
00404CC1 CDQ
00404CC2 IDIV ESI                     <- A20 / 1A -> eax = 63, edx = 12
00404CC4 MOV AL,[ESP+09]              <- “6” <- 1. digit
00404CC8 ADD DL,41                    <- 12 + 41 = 53 = “S”
00404CCB CMP AL,DL                    <- “6” ile “S” esit mi ?
00404CCD JZ 00404CF5                  <- iyi cocuk

Sallama serial “S06060606060” -> [F10] ->

00404CF5 MOV AL,[ECX+01]              <- “0” <- 2. digit
00404CF8 MOV ESI,00000009             <- esi = 9
00404CFD MOV [ESP+20],AL              <- “0” <- 2. digit
00404D01 MOVSX EAX,BYTE PTR [ECX+09]  <- “0” <- 10. digit
00404D05 MOVSX EDX,BL                 <- “6” <- 3. digit
00404D08 IMUL EAX,EDX                 <- 30 * 36 = A20
00404D0B CDQ
00404D0C IDIV ESI                     <- A20 / 9 -> eax = 120, edx = 0
00404D0E MOV AL,[ESP+20]              <- “0” <- 2. digit
00404D12 ADD DL,31                    <- 0 + 31 = 31 = “1”
00404D15 CMP AL,DL                    <- “0” ile “1” esit mi ?
00404D17 JZ 00404D3F                  <- iyi cocuk

Sallama serial “S16060606060” -> [F10] ->

00404D3F MOV DL,[ECX+05]              <- “0” <- 6. digit
00404D42 MOV ESI,00000009             <- esi = 9
00404D47 MOVSX EAX,BYTE PTR [ECX+07]  <- “0” <- 8. digit
00404D4B MOVSX EDX,DL                 <- 30
00404D4E IMUL EAX,EDX                 <- 30 * 30 = 900
00404D51 CDQ
00404D52 IDIV ESI                     <- 900 / 9 -> eax = 100, edx = 0
00404D54 MOV BL,[ECX+04]              <- “6” <- 5. digit
00404D57 MOV [ESP+0A],BL              <- “6”
00404D5B ADD DL,31                    <- 0 + 31 = 31 = “1”
00404D5E CMP BL,DL                    <- “6” ile “1” esit mi ?
00404D60 JZ 00404D88                  <- iyi cocuk

Sallama serial “S16010606060” -> [F10] ->

00404D88 MOVSX EAX,BYTE PTR [ECX+05]  <- “0” <- 6. digit
00404D8C MOVSX EDX,BYTE PTR [ECX+03]  <- “0” <- 4. digit
00404D90 IMUL EAX,EDX                 <- 30 * 30 = 900
00404D93 MOVSX EDX,BYTE PTR [ECX+07]  <- “0” <- 8. digit
00404D97 ADD EAX,EDX                  <- 900 + 30 = 930
00404D99 MOV ESI,0000001A             <- esi = 1A
00404D9E CDQ
00404D9F IDIV ESI                     <- 930 / 1A -> eax = 5A, edx = C
00404DA1 MOV BL,[ECX+06]              <- “6” <- 7. digit
00404DA4 ADD DL,41                    <- C + 41 = 4D = “M”
00404DA7 CMP BL,DL                    <- “6” ile “M” esit mi ?
00404DA9 JZ 00404DD1                  <- iyi cocuk

Sallama serial “S16010M06060” -> [F10] ->

00404DD1 MOV AL,[ECX+0B]              <- “0” <- 12. digit
00404DD4 PUSH EDI
00404DD5 MOVSX ESI,BYTE PTR [ESP+0E]  <- “1” <- 2. digit
00404DDA MOVSX EDI,BYTE PTR [ESP+0D]  <- “S” <- 1. digit
00404DDF MOV [ESP+0F],AL              <- “0”
00404DE3 MOV DL,[ECX+08]              <- “6” <- 9. digit
00404DE6 MOVSX EAX,BL                 <- “M” <- 7. digit
00404DE9 IMUL EAX,ESI                 <- 4D * 31 = EBD
00404DEC MOVSX ESI,BYTE PTR [ESP+24]  <- “1” <- 2. digit
00404DF1 MOV CL,[ECX+0A]              <- “6” <- 11. digit
00404DF4 IMUL ESI,EDI                 <- 31 * 53 = FE3
00404DF7 MOVSX ECX,CL                 <- 36
00404DFA ADD EAX,ESI                  <- EBD + FE3 = 1EA0
00404DFC POP EDI
00404DFD MOVSX EDX,DL                 <- 36
00404E00 ADD EAX,ECX                  <- 1EA0 + 36 = 1ED6
00404E02 MOV ECX,00000009             <- ecx = 9
00404E07 ADD EAX,EDX                  <- 1ED6 + 36 = 1F0C
00404E09 MOV DWORD PTR [ESP+18],FFFFFFFF
00404E11 CDQ
00404E12 IDIV ECX                     <- 1F0C / 9 -> eax = 373, edx = 1
00404E14 MOV AL,[ESP+0B]              <- “0” <- 12. digit
00404E18 LEA ECX,[ESP+0C]
00404E1C ADD DL,31                    <- 1 + 31 = 32
00404E1F CMP AL,DL                    <- “0” ile “?” esit mi ?
00404E21 JZ 00404E3D                  <- iyi cocuk

Sallama serial “S16010M0606?” oldu. KeyGen kodunu VB'de veriyorum.


Dim sallama(7), serial(5)            ; 7 random digit, 5 hesaplanacak digit
siralama = "110010100001"            ; 1 -> hesaplananlar, 0 -> random olanlar

For i = 1 To 7
Randomize
a = (Int((97 * Rnd) + 1)) + 25       ; sadece buyuk harf bul -> 98~122 arasi
sallama(i) = Asc(a)
Next i

serial(1) = ((sallama(1) * sallama(2)) Mod &H1A) + &H41
serial(2) = ((sallama(6) * sallama(1)) Mod 9) + &H31
serial(3) = ((sallama(3) * sallama(4)) Mod 9) + &H31
serial(4) = (((sallama(2) * sallama(3)) + sallama(4)) Mod &H1A) + &H41
serial(5) = ((serial(3) * serial(4) + serial(1) * serial(2) + sallama(7) + sallama(5)) Mod 9) + &H31

sayac_1 = 1: sayac_2 = 1             ; sonucu yazmak icin kullanacagiz

For j = 1 To 12                      ; sonuc 12 digit olacak
sira = Mid(siralama, j, 1)
If sira = "1" Then                   ; hesaplanan digit mi ?
sonuc = sonuc + Chr(serial(sayac_1))
sayac_1 = sayac_1 + 1
Else                                 ; random digit o zaman
sonuc = sonuc + Chr(sallama(sayac_2))
sayac_2 = sayac_2 + 1
End If
Next j
 

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