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{*******************************************************}
{ }
{ 天堂2數據包加密解密文檔 }
{ }
{ }
{ 時間: 2004-2-19 }
{ }
{ 編寫者: nzinzi }
{ }
{*******************************************************}
{數據包加密代碼system\Network.dll}
//----------------------------------------------------------------
// 登陸數據包 BlowFish
//----------------------------------------------------------------
//----------------------------------------------------------------
$10001000 BlowFish 加密函數
//----------------------------------------------------------------
//----------------------------------------------------------------
$10001880 BlowFish 初始化函數 填充S盒P盒 KEY = '[;''.]94-31==-%&@!^+] '
//----------------------------------------------------------------
//----------------------------------------------------------------
$10006BD6 初始化游戲數據包KEY
//----------------------------------------------------------------
::10006BD6:: 8890 D4490000 MOV [EAX+49D4],DL
::10006BDC:: 8B4424 08 MOV EAX,[ESP+8]
::10006BE0:: 8B4E 3C MOV ECX,[ESI+3C]
::10006BE3:: 99 CDQ
::10006BE4:: 8981 E0490000 MOV [ECX+49E0],EAX
::10006BEA:: 81CA A16C5487 OR EDX,87546CA1
::10006BF0:: 8991 E4490000 MOV [ECX+49E4],EDX
::10006BF6:: 8B4424 08 MOV EAX,[ESP+8]
::10006BFA:: 8B4E 3C MOV ECX,[ESI+3C]
::10006BFD:: 99 CDQ
::10006BFE:: 8981 D8490000 MOV [ECX+49D8],EAX
::10006C04:: 81CA A16C5487 OR EDX,87546CA1
::10006C0A:: 8991 DC490000 MOV [ECX+49DC],EDX
//----------------------------------------------------------------
** ** ** ** A1 6C 54 87 ** ** ** ** A1 6C 54 87
|| || || || || || || || || || || || || || || ||
|| || || || || || || || || || || || +++++++++++---常量($87546CA1)
|| || || || || || || || +++++++++++---------------RECV長度累加值 初始值服務器返回
|| || || || +++++++++++---------------------------常量($87546CA1) 跟RECV一致
+++++++++++---------------------------------------SEND長度累加值
//----------------------------------------------------------------
$100023D0 游戲數據包加密SEND
//----------------------------------------------------------------
::100023D0:: 8B5424 04 MOV EDX,[ESP+4]
::100023D4:: 8A0A MOV CL,[EDX]
::100023D6:: 56 PUSH ESI
::100023D7:: 8B7424 0C MOV ESI,[ESP+C]
::100023DB:: 8A06 MOV AL,[ESI]
::100023DD:: 32C8 XOR CL,AL
::100023DF:: 57 PUSH EDI
::100023E0:: 8B7C24 14 MOV EDI,[ESP+14]
::100023E4:: 880A MOV [EDX],CL
::100023E6:: B9 01000000 MOV ECX,1
::100023EB:: 3BF9 CMP EDI,ECX
::100023ED:: 7E 16 JLE SHORT 10002405 \:JMPDOWN
::100023EF:: 53 PUSH EBX
::100023F0:: 8A5C11 FF MOV BL,[ECX+EDX-1] \:BYJMP JmpBy:10002402,
::100023F4:: 8BC1 MOV EAX,ECX
::100023F6:: 83E0 07 AND EAX,7
::100023F9:: 321C30 XOR BL,[EAX+ESI]
::100023FC:: 301C11 XOR [ECX+EDX],BL
::100023FF:: 41 INC ECX
::10002400:: 3BCF CMP ECX,EDI
::10002402:: 7C EC JL SHORT 100023F0 \:JMPUP
::10002404:: 5B POP EBX
::10002405:: 8B0E MOV ECX,[ESI] \:BYJMP JmpBy:100023ED,
::10002407:: 8BC7 MOV EAX,EDI
::10002409:: 99 CDQ
::1000240A:: 03C8 ADD ECX,EAX
::1000240C:: 8B46 04 MOV EAX,[ESI+4]
::1000240F:: 13C2 ADC EAX,EDX
::10002411:: 5F POP EDI
::10002412:: 890E MOV [ESI],ECX
::10002414:: 8946 04 MOV [ESI+4],EAX
::10002417:: 5E POP ESI
::10002418:: C2 0C00 RETN C
//----------------------------------------------------------------
$10002420 游戲數據包RECV解密
//----------------------------------------------------------------
::10002420:: 55 PUSH EBP
::10002421:: 8B6C24 10 MOV EBP,[ESP+10]
::10002425:: 56 PUSH ESI
::10002426:: 8B7424 0C MOV ESI,[ESP+C]
::1000242A:: 8A16 MOV DL,[ESI]
::1000242C:: 57 PUSH EDI
::1000242D:: 8B7C24 14 MOV EDI,[ESP+14]
::10002431:: 8A07 MOV AL,[EDI]
::10002433:: 32C2 XOR AL,DL
::10002435:: B9 01000000 MOV ECX,1
::1000243A:: 3BE9 CMP EBP,ECX
::1000243C:: 8806 MOV [ESI],AL
::1000243E:: 7E 1B JLE SHORT 1000245B \:JMPDOWN
::10002440:: 53 PUSH EBX
::10002441:: 8A0431 MOV AL,[ECX+ESI] \:BYJMP JmpBy:10002458,
::10002444:: 8BD9 MOV EBX,ECX
::10002446:: 83E3 07 AND EBX,7
::10002449:: 8A1C3B MOV BL,[EBX+EDI]
::1000244C:: 32D8 XOR BL,AL
::1000244C:: 32D8 XOR BL,AL
::1000244E:: 32DA XOR BL,DL
::10002450:: 881C31 MOV [ECX+ESI],BL
::10002453:: 41 INC ECX
::10002454:: 3BCD CMP ECX,EBP
::10002456:: 8AD0 MOV DL,AL
::10002458:: 7C E7 JL SHORT 10002441 \:JMPUP
::1000245A:: 5B POP EBX
::1000245B:: 8B0F MOV ECX,[EDI] \:BYJMP JmpBy:1000243E,
::1000245D:: 8BC5 MOV EAX,EBP
::1000245F:: 99 CDQ
::10002460:: 03C8 ADD ECX,EAX
::10002462:: 8B47 04 MOV EAX,[EDI+4]
::10002465:: 13C2 ADC EAX,EDX
::10002467:: 890F MOV [EDI],ECX
::10002469:: 8947 04 MOV [EDI+4],EAX
::1000246C:: 5F POP EDI
::1000246D:: 5E POP ESI
::1000246E:: 5D POP EBP
::1000246F:: C2 0C00 RETN C
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