Function at 0x58581f
Capabilities:
Encode data using xor

Disassembly:
sub esp, 0x74
push ebx
mov ebx, dword [esp + 0x90]
push ebp
push esi
push edi
push ebx
call fcn.00583983
test eax, eax
jne 0x585afe
push dword [esp + 0x98]
call fcn.005851d4
test eax, eax
jne 0x585afe
imul eax, ebx, 0x68
test byte [esp + 0xa0], 7
mov ebx, dword [esp + 0xa0]
push 0
pop ecx
setne cl
mov dword [esp + 0x10], eax
shr ebx, 3
add ebx, ecx
mov edx, dword [eax + 0x7c7828]
mov eax, dword [esp + 0x90]
mov dword [esp + 0x14], edx
cmp eax, ebx
ja 0x585afb
add eax, 2
add eax, edx
cmp ebx, eax
jb 0x585afb
push ebx
call fcn.00676855
push ebx
mov ebp, eax
call fcn.00676855
push ebx
mov dword [esp + 0x24], eax
call fcn.00676855
mov edi, eax
push ebx
mov dword [esp + 0x30], edi
call fcn.00676855
add esp, 0x10
mov esi, eax
mov dword [esp + 0x1c], esi
test ebp, ebp
je 0x585ad2
cmp dword [esp + 0x18], 0
je 0x585acb
test edi, edi
je 0x585acb
test esi, esi
je 0x585acb
mov esi, dword [esp + 0x90]
test esi, esi
je 0x585914
imul eax, dword [esp + 0x98], 0x28
push dword [esp + 0x94]
push esi
push edi
call dword [eax + 0x7c8534]
cmp eax, esi
je 0x585914
push 9
pop esi
jmp 0x585aa6
lea eax, [esp + 0x24]
push eax
mov eax, dword [esp + 0x14]
call dword [eax + 0x7c7874]
mov esi, eax
test esi, esi
jne 0x585aa6
push 8
push ebp
call fcn.0058377a
push 8
push ebp
lea eax, [esp + 0x2c]
push eax
mov eax, dword [esp + 0x1c]
call dword [eax + 0x7c7878]
mov esi, eax
test esi, esi
jne 0x585aa6
push dword [esp + 0x8c]
lea eax, [esp + 0x28]
push dword [esp + 0x8c]
push eax
mov eax, dword [esp + 0x1c]
call dword [eax + 0x7c7878]
mov esi, eax
test esi, esi
jne 0x585aa6
push dword [esp + 0x90]
lea eax, [esp + 0x28]
push edi
push eax
mov eax, dword [esp + 0x1c]
call dword [eax + 0x7c7878]
mov esi, eax
test esi, esi
jne 0x585aa6
push dword [esp + 0x1c]
lea eax, [esp + 0x28]
push eax
mov eax, dword [esp + 0x18]
call dword [eax + 0x7c787c]
mov esi, eax
test esi, esi
jne 0x585aa6
mov esi, ebx
sub esi, dword [esp + 0x14]
mov eax, esi
sub eax, dword [esp + 0x90]
sub eax, 2
push eax
push 0
push ebp
call fcn.006678b0
mov ecx, dword [esp + 0x9c]
mov eax, ebp
sub eax, dword [esp + 0x20]
sub eax, ecx
push ecx
push edi
mov byte [eax + ebx - 2], 1
dec eax
add eax, ebx
push eax
call fcn.006661f0
add esp, 0x18
lea eax, [esi - 1]
mov dword [esp + 0x10], eax
push eax
push dword [esp + 0x1c]
push dword [esp + 0x1c]
push dword [esp + 0x28]
push dword [esp + 0xac]
call fcn.00586080
mov esi, eax
test esi, esi
jne 0x585aa6
mov esi, dword [esp + 0x10]
test esi, esi
je 0x585a3e
mov edx, dword [esp + 0x18]
mov ecx, ebp
sub edx, ebp
mov edi, esi
mov al, byte [edx + ecx]
xor byte [ecx], al
inc ecx
sub edi, 1
jne 0x585a2f
mov edi, dword [esp + 0x20]
mov eax, dword [esp + 0xa8]
cmp dword [eax], ebx
jae 0x585a4e
push 6
pop esi
jmp 0x585aa4
mov edi, dword [esp + 0xa4]
push esi
push ebp
push edi
call fcn.006661f0
mov eax, dword [esp + 0x20]
mov esi, ebx
sub esi, eax
push eax
push dword [esp + 0x2c]
dec esi
lea eax, [esi + edi]
push eax
call fcn.006661f0
mov eax, dword [esp + 0x2c]
mov ecx, ebx
add eax, esi
shl ecx, 3
sub ecx, dword [esp + 0xb8]
add esp, 0x18
inc ecx
mov byte [eax + edi], 0xbc
mov eax, 0xff
sar eax, cl
and byte [edi], al
xor esi, esi
mov eax, dword [esp + 0xa8]
mov edi, dword [esp + 0x20]
mov dword [eax], ebx
push dword [esp + 0x1c]
call fcn.00676850
push edi
call fcn.00676850
push dword [esp + 0x20]
call fcn.00676850
push ebp
call fcn.00676850
add esp, 0x10
mov eax, esi
jmp 0x585afe
push ebp
call fcn.00676850
pop ecx
mov eax, dword [esp + 0x18]
test eax, eax
je 0x585ae1
push eax
call fcn.00676850
pop ecx
test edi, edi
je 0x585aec
push edi
call fcn.00676850
pop ecx
test esi, esi
je 0x585af7
push esi
call fcn.00676850
pop ecx
push 0xd
jmp 0x585afd
push 0x16
pop eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x74
ret 0x24