Function at 0x401670
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x10
push ebx
push esi
push edi
push 4
mov ebx, ecx
call fcn.0040a694
mov edi, eax
push 4
mov dword [ebp - 0xc], edi
call fcn.0040a694
mov esi, eax
add esp, 8
mov eax, dword [ebx + 4]
xor edx, edx
mov dword [ebp - 0x10], esi
lea ecx, [eax*4]
test ecx, ecx
jle 0x4016d1
mov ecx, dword [ebp + 0xc]
mov edi, 0x410528
sub edi, ecx
mov al, byte [edi + ecx]
lea ecx, [ecx + 1]
mov byte [ecx - 1], al
inc edx
mov esi, dword [ebx + 4]
lea eax, [esi*4]
cmp edx, eax
jl 0x4016b0
mov edi, dword [ebp - 0xc]
mov esi, dword [ebp - 0x10]
mov eax, dword [ebx + 4]
lea edx, [eax*4]
mov eax, dword [ebx + 8]
inc eax
mov dword [ebp - 0xc], edx
imul eax, dword [ebx]
shl eax, 2
cmp edx, eax
jge 0x4018df
mov ecx, dword [ebp + 0xc]
add ecx, 0xfffffffd
add ecx, edx
mov dword [ebp - 8], ecx
mov al, byte [ecx - 1]
mov byte [edi], al
mov byte [ebp - 1], al
mov al, byte [ecx]
mov byte [edi + 1], al
mov byte [ebp - 2], al
mov al, byte [ecx + 1]
mov byte [edi + 2], al
mov byte [ebp - 3], al
mov al, byte [ecx + 2]
mov byte [edi + 3], al
mov ecx, dword [ebx + 4]
mov byte [ebp - 4], al
mov eax, edx
cdq
and edx, 3
add eax, edx
sar eax, 2
cdq
idiv ecx
test edx, edx
jne 0x4017e4
movzx ecx, byte [ebp - 2]
mov eax, ecx
and ecx, 0xf
and eax, 0xfffffff0
movzx eax, byte [eax + ecx + 0x40c348]
movzx ecx, byte [ebp - 3]
mov byte [edi], al
mov eax, ecx
and eax, 0xfffffff0
and ecx, 0xf
movzx eax, byte [eax + ecx + 0x40c348]
movzx ecx, byte [ebp - 4]
mov byte [edi + 1], al
mov eax, ecx
and eax, 0xfffffff0
and ecx, 0xf
movzx eax, byte [eax + ecx + 0x40c348]
movzx ecx, byte [ebp - 1]
mov byte [edi + 2], al
mov eax, ecx
and eax, 0xfffffff0
and ecx, 0xf
movzx eax, byte [eax + ecx + 0x40c348]
mov cl, 1
mov byte [edi + 3], al
mov esi, dword [ebx + 4]
mov eax, dword [ebp - 0xc]
shl esi, 2
cdq
idiv esi
lea edx, [eax - 1]
test edx, edx
jle 0x4017b7
mov al, cl
add cl, cl
shr al, 7
movzx eax, al
imul eax, eax, 0x1b
xor cl, al
sub edx, 1
jne 0x4017a3
mov esi, dword [ebp - 0x10]
mov byte [esi], cl
mov word [esi + 2], 0
mov byte [esi + 1], 0
xor byte [edi], cl
mov al, byte [edi]
mov byte [ebp - 1], al
movzx eax, byte [esi + 1]
xor byte [edi + 1], al
movzx eax, byte [esi + 2]
xor byte [edi + 2], al
movzx eax, byte [esi + 3]
xor byte [edi + 3], al
jmp 0x401853
mov al, byte [ebp - 1]
mov byte [ebp - 1], al
cmp ecx, 6
jle 0x401853
mov byte [ebp - 1], al
cmp edx, 4
jne 0x401853
movzx ecx, al
mov eax, ecx
and ecx, 0xf
and eax, 0xfffffff0
mov al, byte [eax + ecx + 0x40c348]
movzx ecx, byte [ebp - 2]
mov byte [ebp - 1], al
mov byte [edi], al
mov eax, ecx
and eax, 0xfffffff0
and ecx, 0xf
movzx eax, byte [eax + ecx + 0x40c348]
movzx ecx, byte [ebp - 3]
mov byte [edi + 1], al
mov eax, ecx
and eax, 0xfffffff0
and ecx, 0xf
movzx eax, byte [eax + ecx + 0x40c348]
movzx ecx, byte [ebp - 4]
mov byte [edi + 2], al
mov eax, ecx
and eax, 0xfffffff0
and ecx, 0xf
movzx eax, byte [eax + ecx + 0x40c348]
mov byte [edi + 3], al
mov ecx, dword [ebx + 4]
mov edx, dword [ebp - 0xc]
mov eax, edx
shl ecx, 2
sub eax, ecx
mov ecx, dword [ebp + 0xc]
movzx eax, byte [eax + ecx]
xor al, byte [ebp - 1]
mov ecx, dword [ebp - 8]
mov byte [ecx + 3], al
mov eax, edx
mov ecx, dword [ebx + 4]
shl ecx, 2
sub eax, ecx
mov ecx, dword [ebp + 0xc]
movzx eax, byte [eax + ecx + 1]
xor al, byte [edi + 1]
mov ecx, dword [ebp - 8]
mov byte [ecx + 4], al
mov eax, edx
mov ecx, dword [ebx + 4]
shl ecx, 2
sub eax, ecx
mov ecx, dword [ebp + 0xc]
movzx eax, byte [eax + ecx + 2]
xor al, byte [edi + 2]
mov ecx, dword [ebp - 8]
mov byte [ecx + 5], al
mov eax, edx
mov ecx, dword [ebx + 4]
add edx, 4
shl ecx, 2
sub eax, ecx
mov dword [ebp - 0xc], edx
mov ecx, dword [ebp + 0xc]
movzx eax, byte [eax + ecx + 3]
xor al, byte [edi + 3]
mov ecx, dword [ebp - 8]
mov byte [ecx + 6], al
add ecx, 4
mov eax, dword [ebx + 8]
inc eax
mov dword [ebp - 8], ecx
imul eax, dword [ebx]
shl eax, 2
cmp edx, eax
jl 0x4016f8
push esi
call fcn.0040a68f
push edi
call fcn.0040a68f
add esp, 8
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 8