Function at 0x491a80
Capabilities:
Encode data using xor

Disassembly:
cmp dword [esp + 0x18], 0
je 0x481ee4
mov dword [esp + 0x18], fcn.00482a70
jmp 0x4918e0
mov dword [esp + 0x18], fcn.00483830
jmp 0x491a80
mov eax, 0x14
call fcn.004bf520
mov eax, dword [esp + 0x28]
push ebx
mov ebx, dword [esp + 0x24]
push ebp
push esi
mov esi, dword [esp + 0x24]
push edi
mov edi, dword [esp + 0x2c]
mov ebp, eax
cmp ebx, 0x10
jb 0x49195a
shr ebx, 4
mov dword [esp + 0x10], ebx
lea esp, [esp]
mov ecx, edi
sub ebp, esi
mov eax, esi
sub ecx, esi
mov edx, 4
lea ecx, [ecx]
mov ebx, dword [eax + ebp]
xor ebx, dword [eax]
add eax, 4
dec edx
mov dword [ecx + eax - 4], ebx
jne 0x491920
mov eax, dword [esp + 0x34]
push eax
push edi
push edi
call dword [esp + 0x48]
mov ebx, dword [esp + 0x3c]
mov ebp, edi
sub ebx, 0x10
add esp, 0xc
add esi, 0x10
add edi, 0x10
dec dword [esp + 0x10]
mov dword [esp + 0x30], ebx
jne 0x491910
mov eax, dword [esp + 0x38]
test ebx, ebx
je 0x491a57
mov ecx, edi
sub ecx, esi
mov dword [esp + 0x14], ecx
mov ecx, 1
sub ecx, esi
mov dword [esp + 0x18], ecx
mov ecx, 2
sub ecx, esi
mov dword [esp + 0x1c], ecx
mov edx, ebp
sub edx, esi
mov ecx, 3
xor eax, eax
sub ecx, esi
mov dword [esp + 0x10], edx
mov dword [esp + 0x20], ecx
jmp 0x49199b
mov edx, dword [esp + 0x10]
cmp eax, ebx
jae 0x491a09
mov ebx, dword [esp + 0x14]
lea ecx, [eax + esi]
mov dl, byte [edx + ecx]
xor dl, byte [ecx]
mov byte [ebx + ecx], dl
mov edx, dword [esp + 0x18]
mov ebx, dword [esp + 0x30]
add edx, ecx
cmp edx, ebx
jae 0x4919fe
mov dl, byte [esi + eax + 1]
xor dl, byte [eax + ebp + 1]
mov byte [edi + eax + 1], dl
mov edx, dword [esp + 0x1c]
add edx, ecx
cmp edx, ebx
jae 0x491a01
mov dl, byte [esi + eax + 2]
xor dl, byte [eax + ebp + 2]
mov byte [edi + eax + 2], dl
mov edx, dword [esp + 0x20]
add edx, ecx
cmp edx, ebx
jae 0x491a06
mov cl, byte [esi + eax + 3]
xor cl, byte [eax + ebp + 3]
add eax, 4
mov byte [edi + eax - 1], cl
cmp eax, 0x10
jb 0x491997
jmp 0x491a29
inc eax
jmp 0x491a09
add eax, 2
jmp 0x491a09
add eax, 3
cmp eax, 0x10
jae 0x491a29
mov edx, 0x10
sub ebp, edi
lea ecx, [eax + edi]
sub edx, eax
lea ebx, [ebx]
mov al, byte [ecx + ebp]
mov byte [ecx], al
inc ecx
dec edx
jne 0x491a20
mov ecx, dword [esp + 0x34]
push ecx
push edi
push edi
call dword [esp + 0x48]
add esp, 0xc
mov ebp, edi
cmp ebx, 0x10
jbe 0x491a53
sub ebx, 0x10
add esi, 0x10
add edi, 0x10
mov dword [esp + 0x30], ebx
test ebx, ebx
jne 0x491962
mov eax, dword [esp + 0x38]
mov edx, dword [ebp]
mov dword [eax], edx
mov ecx, dword [ebp + 4]
mov dword [eax + 4], ecx
mov edx, dword [ebp + 8]
pop edi
mov dword [eax + 8], edx
mov ecx, dword [ebp + 0xc]
pop esi
pop ebp
mov dword [eax + 0xc], ecx
pop ebx
add esp, 0x14
ret
mov eax, 0x3c
call fcn.004bf520
mov eax, dword [0x586f0c]
xor eax, esp
mov dword [esp + 0x38], eax
mov eax, dword [esp + 0x4c]
mov ecx, dword [esp + 0x54]
push ebx
mov ebx, dword [esp + 0x48]
push ebp
mov ebp, dword [esp + 0x50]
push esi
mov esi, dword [esp + 0x4c]
push edi
mov edi, dword [esp + 0x60]
mov dword [esp + 0x30], eax
mov dword [esp + 0x28], ecx
cmp esi, ebx
je 0x491b30
mov eax, edi
mov dword [esp + 0x14], eax
cmp ebp, 0x10
jb 0x491b15
mov eax, ebp
shr eax, 4
mov dword [esp + 0x18], eax
mov edx, dword [esp + 0x30]
push edx
push ebx
push esi
call dword [esp + 0x34]
mov ecx, dword [esp + 0x20]
add esp, 0xc
mov eax, ebx
sub ecx, ebx
mov dword [esp + 0x1c], 4
nop
mov edx, dword [ecx + eax]
xor dword [eax], edx
add eax, 4
dec dword [esp + 0x1c]
jne 0x491af0
mov dword [esp + 0x14], esi
sub ebp, 0x10
add esi, 0x10
add ebx, 0x10
dec dword [esp + 0x18]
jne 0x491ad1
mov eax, dword [esp + 0x14]
mov ecx, dword [eax]
mov dword [edi], ecx
mov edx, dword [eax + 4]
mov dword [edi + 4], edx
mov ecx, dword [eax + 8]
mov dword [edi + 8], ecx
mov edx, dword [eax + 0xc]
mov dword [edi + 0xc], edx
jmp 0x491bd1
cmp ebp, 0x10
jb 0x491bd1
lea ecx, [esp + 0x38]
mov eax, edi
sub eax, ecx
mov dword [esp + 0x20], eax
mov eax, ebx
mov edx, ecx
sub eax, edx
mov dword [esp + 0x18], eax
mov eax, esi
sub eax, ecx
mov dword [esp + 0x14], eax
mov eax, ebp
shr eax, 4
mov dword [esp + 0x24], eax
shl eax, 4
add ebx, eax
mov edx, dword [esp + 0x30]
push edx
lea eax, [esp + 0x3c]
push eax
push esi
call dword [esp + 0x34]
add esp, 0xc
xor eax, eax
mov dword [esp + 0x1c], eax
lea ecx, [ecx]
mov ecx, dword [esp + 0x14]
lea eax, [esp + eax + 0x38]
mov edx, dword [ecx + eax]
mov ecx, dword [esp + 0x20]
mov dword [esp + 0x2c], edx
mov edx, dword [ecx + eax]
xor edx, dword [eax]
mov ecx, dword [esp + 0x18]
mov dword [ecx + eax], edx
mov edx, dword [esp + 0x2c]
mov ecx, dword [esp + 0x20]
mov dword [ecx + eax], edx
mov eax, dword [esp + 0x1c]
add eax, 4
mov dword [esp + 0x1c], eax
cmp eax, 0x10
jb 0x491b80
mov eax, 0x10
add dword [esp + 0x14], eax
add dword [esp + 0x18], eax
sub ebp, eax
add esi, eax
dec dword [esp + 0x24]
jne 0x491b65
test ebp, ebp
je 0x491d49
lea edx, [esp + 0x38]
mov eax, edi
sub eax, edx
mov dword [esp + 0x20], eax
mov ecx, edx
mov eax, 1
sub eax, ecx
mov dword [esp + 0x2c], eax
mov eax, 2
sub eax, edx
mov dword [esp + 0x24], eax
mov eax, 3
sub eax, ecx
mov dword [esp + 0x34], eax
mov eax, esi
sub eax, edx
mov dword [esp + 0x18], eax
lea eax, [ebx + 2]
sub ebx, ecx
mov dword [esp + 0x14], eax
mov dword [esp + 0x1c], ebx
lea ecx, [ecx]
mov edx, dword [esp + 0x30]
push edx
lea eax, [esp + 0x3c]
push eax
push esi
call dword [esp + 0x34]
add esp, 0xc
xor eax, eax
cmp eax, ebp
jae 0x491cec
mov edx, dword [esp + 0x18]
mov ebx, dword [esp + 0x1c]
lea ecx, [esp + eax + 0x38]
movzx edx, byte [edx + ecx]
mov byte [esp + 0x13], dl
mov edx, dword [esp + 0x20]
movzx edx, byte [edx + ecx]
xor dl, byte [ecx]
mov byte [ebx + ecx], dl
movzx edx, byte [esp + 0x13]
mov ebx, dword [esp + 0x20]
mov byte [ebx + ecx], dl
mov edx, dword [esp + 0x2c]
add edx, ecx
cmp edx, ebp
jae 0x491d24
mov dl, byte [esi + eax + 1]
movzx ebx, byte [ecx + 1]
xor bl, byte [edi + eax + 1]
mov byte [esp + 0x13], dl
mov edx, dword [esp + 0x14]
mov byte [edx + eax - 1], bl
movzx ebx, byte [esp + 0x13]
mov byte [edi + eax + 1], bl
mov ebx, dword [esp + 0x24]
add ebx, ecx
cmp ebx, ebp
jae 0x491d27
movzx ebx, byte [esi + eax + 2]
mov byte [esp + 0x13], bl
movzx ebx, byte [ecx + 2]
xor bl, byte [edi + eax + 2]
mov byte [edx + eax], bl
movzx ebx, byte [esp + 0x13]
mov byte [edi + eax + 2], bl
mov ebx, dword [esp + 0x34]
add ebx, ecx
cmp ebx, ebp
jae 0x491d2c
mov cl, byte [ecx + 3]
xor cl, byte [edi + eax + 3]
mov bl, byte [esi + eax + 3]
mov byte [edx + eax + 1], cl
mov byte [edi + eax + 3], bl
add eax, 4
cmp eax, 0x10
jb 0x491c34
mov edx, dword [esp + 0x14]
mov ebx, 0x10
cmp ebp, ebx
jbe 0x491d31
add dword [esp + 0x18], ebx
add dword [esp + 0x1c], ebx
add edx, ebx
add esi, ebx
sub ebp, ebx
mov dword [esp + 0x14], edx
jne 0x491c20
pop edi
pop esi
pop ebp
pop ebx
mov ecx, dword [esp + 0x38]
xor ecx, esp
call fcn.004bf32e
add esp, 0x3c
ret
inc eax
jmp 0x491cec
add eax, 2
jmp 0x491cf0
add eax, 3
jmp 0x491cf0
cmp eax, ebx
jae 0x491d49
mov edx, ebx
sub esi, edi
lea ecx, [edi + eax]
sub edx, eax
mov edi, edi
mov al, byte [esi + ecx]
mov byte [ecx], al
inc ecx
dec edx
jne 0x491d40
mov ecx, dword [esp + 0x48]
pop edi
pop esi
pop ebp
pop ebx
xor ecx, esp
call fcn.004bf32e
add esp, 0x3c
ret