Function at 0x100da810
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x1018023d
mov eax, dword fs:[0]
push eax
sub esp, 0x54
mov eax, dword [0x101dadb0]
xor eax, ebp
mov dword [ebp - 0x10], eax
push ebx
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov esi, dword [ebp + 0x10]
test esi, esi
je 0x100daa59
mov ecx, dword [0xf3e688]
mov eax, 0x10624dd3
mul esi
mov ebx, edx
shr ebx, 6
imul eax, ebx, 0x3e8
push eax
call dword [0x101ba7a4]
mov edi, eax
test edi, edi
je 0x100daa59
movzx ecx, byte [edi + 4]
mov eax, 0x12e0be83
mul esi
mov eax, esi
sub eax, edx
shr eax, 1
add eax, edx
shr eax, 0x1d
cmp eax, 4
jae 0x100daa59
cmp ecx, 0x2c
ja 0x100daa59
mov ecx, dword [ecx*4 + 0xf3e690]
mov edx, esi
imul eax, ebx, 0x3e8
sub edx, eax
cmp esi, 0x3b9aca00
lea eax, [edx + 0x3e8]
cmovb eax, edx
push eax
call dword [0x101ba7a8]
mov esi, eax
test esi, esi
je 0x100daa59
cmp dword [esi + 0x48], 0xf4240
mov ebx, dword [edi + 0x4c]
jbe 0x100da8d7
mov ebx, dword [esi + 0x44]
mov eax, 0xcccccccd
movaps xmm0, xmmword [0x101c2e00]
mul ebx
movups xmmword [ebp - 0x54], xmm0
movaps xmm0, xmmword [0x101c20d0]
movups xmmword [ebp - 0x44], xmm0
mov ecx, ebx
mov dword [ebp - 0x34], 0x3c302c66
mov eax, edx
mov byte [ebp - 0x30], 0
shr eax, 3
lea edx, [eax + eax*4]
add edx, edx
sub ecx, edx
xor edx, edx
push ecx
mov ecx, 0x64
div ecx
mov eax, 0x10624dd3
mov ecx, 0x2710
push edx
mul ebx
shr edx, 6
mov eax, edx
xor edx, edx
div ecx
mov eax, 0x6b5fca6b
push edx
mul ebx
shr edx, 0x16
xor eax, eax
push edx
nop dword [eax + eax]
mov cl, byte [ebp - 0x54]
xor byte [ebp + eax - 0x53], cl
inc eax
cmp eax, 0x23
jb 0x100da940
sub esp, 0x1c
mov byte [ebp - 0x30], 0
lea eax, [ebp - 0x53]
mov ecx, esp
push eax
call fcn.10046d00
lea eax, [ebp - 0x2c]
push eax
call fcn.10049e30
add esp, 0x30
mov eax, dword [ebp + 8]
mov dword [ebp - 4], 0
mov dword [ebp - 0x58], eax
test eax, eax
jne 0x100da9a1
lea ecx, [eax + 0x78]
call fcn.100da130
mov dword [ebp - 0x5c], eax
test eax, eax
je 0x100da997
mov ecx, dword [ebp - 0x5c]
call dword [0x101ba6e4]
mov dword [ebp - 0x58], eax
cmp dword [ebp - 0x58], 0
jne 0x100da9a1
xor esi, esi
jmp 0x100daa11
mov ecx, dword [ebp - 0x58]
call dword [0x101ba6f4]
lea eax, [ebp - 0x58]
push eax
call fcn.100da7d0
add esp, 4
lea eax, [ebp - 0x2c]
push eax
mov eax, dword [ebp - 0x58]
add eax, 4
push eax
call fcn.100da7f0
mov eax, dword [ebp - 0x58]
xor ecx, ecx
add esp, 8
mov word [eax + 0x22], cx
mov eax, dword [ebp - 0x58]
mov dword [eax + 0x24], ecx
mov eax, dword [ebp - 0x58]
mov dword [eax + 0x28], ecx
mov eax, dword [ebp - 0x58]
mov dword [eax + 0x4c], ecx
mov eax, dword [ebp - 0x58]
mov dword [eax + 0x68], edi
mov eax, dword [ebp - 0x58]
mov dword [eax + 0x6c], esi
mov eax, dword [ebp - 0x58]
mov word [eax + 0x70], cx
mov cx, word [esi + 0x56]
mov eax, dword [ebp - 0x58]
add cx, word [edi + 0x66]
mov word [eax + 0x74], cx
mov ecx, dword [ebp - 0x58]
mov eax, dword [ebp + 0xc]
mov dword [ecx], eax
mov esi, dword [ebp - 0x58]
lea ecx, [ebp - 0x2c]
call fcn.10043e40
mov eax, dword [ebp - 0x14]
cmp eax, 0x10
jb 0x100daa2e
inc eax
push eax
push dword [ebp - 0x28]
call fcn.10048530
add esp, 8
mov ecx, dword [ebp - 0x2c]
push 8
push ecx
mov dword [ebp - 0x18], 0
mov dword [ebp - 0x14], 0xf
mov byte [ebp - 0x28], 0
mov dword [ebp - 0x2c], 0
call fcn.10048530
add esp, 8
mov eax, esi
jmp 0x100daa5b
xor eax, eax
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.1011f880
mov esp, ebp
pop ebp
ret 0x20