Function at 0x100dce40
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
push ebp
mov ebp, esp
sub esp, 0xc
mov eax, dword [0x1019bc84]
xor eax, ebp
mov dword [ebp - 4], eax
push ebx
mov ebx, dword [ebp + 8]
push esi
mov esi, ecx
push edi
mov edi, dword [ebp + 0xc]
cmp dword [esi + 0x10], 0
jne 0x100dd025
test edi, edi
je 0x100dd025
mov ecx, dword [esi + 0x20]
mov eax, 0x532ae21d
sub ecx, dword [esi + 0x1c]
imul ecx
sar edx, 8
mov eax, edx
shr eax, 0x1f
add eax, edx
cmp ebx, eax
jae 0x100dd025
imul eax, ebx, 0x314
mov ebx, dword [esi + 0x1c]
mov ebx, dword [eax + ebx]
test byte [ebx + 0x26], 0x10
jne 0x100dd025
mov eax, dword [ebp + 0x10]
cmp dword [ebx + 0x18], eax
ja 0x100dd025
mov esi, dword [esi + 0xc]
mov edx, dword [ebx + 0x2a]
movzx eax, word [edx + esi + 0x1c]
movzx ecx, word [edx + esi + 0x1a]
add eax, edx
add ecx, eax
lea eax, [esi + 0x1e]
add eax, ecx
movzx ecx, word [ebx + 0xa]
mov dword [ebp - 8], eax
test cx, cx
jne 0x100dd03a
mov esi, dword [ebp + 0x10]
mov ecx, dword [ebx + 0x14]
mov dword [ebp - 0xc], ecx
test esi, esi
je 0x100dcf2d
test eax, eax
je 0x100dcef9
cmp ecx, esi
jb 0x100dcef9
push esi
push eax
push edi
call fcn.100e37c0
add esp, 0xc
jmp 0x100dcf2d
push ecx
push 0
push edi
call fcn.100e3030
add esp, 0xc
cmp dword [ebp - 8], 0
jne 0x100dcf18
call fcn.100ffec9
mov dword [eax], 0x16
jmp 0x100dcf28
cmp dword [ebp - 0xc], esi
jae 0x100dcf2d
call fcn.100ffec9
mov dword [eax], 0x22
call fcn.100ffda3
mov edx, dword [ebx + 0x14]
test edx, edx
je 0x100dd01e
or eax, 0xffffffff
cmp edx, 8
jb 0x100dcff6
mov esi, edx
shr esi, 3
nop dword [eax]
movzx ecx, byte [edi]
sub edx, 8
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x1016d618]
movzx ecx, byte [edi + 1]
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x1016d618]
movzx ecx, byte [edi + 2]
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x1016d618]
movzx ecx, byte [edi + 3]
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x1016d618]
movzx ecx, byte [edi + 4]
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x1016d618]
movzx ecx, byte [edi + 5]
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x1016d618]
movzx ecx, byte [edi + 6]
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x1016d618]
movzx ecx, byte [edi + 7]
add edi, 8
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x1016d618]
sub esi, 1
jne 0x100dcf50
test edx, edx
je 0x100dd01a
nop word [eax + eax]
movzx ecx, byte [edi]
lea edi, [edi + 1]
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x1016d618]
sub edx, 1
jne 0x100dd000
not eax
jmp 0x100dd020
xor eax, eax
cmp eax, dword [ebx + 0x10]
je 0x100dd066
pop edi
pop esi
xor eax, eax
pop ebx
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.1009de58
mov esp, ebp
pop ebp
ret 0xc
cmp ecx, 8
jne 0x100dd025
lea ecx, [ebp - 8]
mov dword [ebp - 8], 0
push ecx
push dword [ebp + 0x10]
push edi
push dword [ebx + 0x14]
push eax
call fcn.100e2f70
add esp, 0x14
test eax, eax
je 0x100dd025
mov eax, dword [ebp - 8]
cmp eax, dword [ebx + 0x10]
jne 0x100dd025
mov ecx, dword [ebp - 4]
mov eax, 1
pop edi
pop esi
xor ecx, ebp
pop ebx
call fcn.1009de58
mov esp, ebp
pop ebp
ret 0xc