Function at 0x4c1c90
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
push ebp
mov ebp, esp
push ecx
cmp dword [ebp + 0xc], 0
jne 0x4c1ca1
xor eax, eax
jmp 0x4c1e8b
mov eax, 1
test eax, eax
je 0x4c1ced
mov dword [ebp - 4], 1
movzx ecx, byte [ebp - 4]
test ecx, ecx
je 0x4c1cd4
mov edx, dword [ebp + 0x10]
push edx
mov eax, dword [ebp + 0xc]
push eax
mov ecx, dword [ebp + 8]
push ecx
call fcn.004c1e90
add esp, 0xc
jmp 0x4c1e8b
mov edx, dword [ebp + 0x10]
push edx
mov eax, dword [ebp + 0xc]
push eax
mov ecx, dword [ebp + 8]
push ecx
call fcn.004c2290
add esp, 0xc
jmp 0x4c1e8b
mov edx, dword [ebp + 8]
xor edx, 0xffffffff
mov dword [ebp + 8], edx
cmp dword [ebp + 0x10], 8
jb 0x4c1e4c
mov eax, dword [ebp + 0xc]
movzx ecx, byte [eax]
xor ecx, dword [ebp + 8]
and ecx, 0xff
mov edx, dword [ebp + 8]
shr edx, 8
xor edx, dword [ecx*4 + 0x4eb5f8]
mov dword [ebp + 8], edx
mov eax, dword [ebp + 0xc]
add eax, 1
mov dword [ebp + 0xc], eax
mov ecx, dword [ebp + 0xc]
movzx edx, byte [ecx]
xor edx, dword [ebp + 8]
and edx, 0xff
mov eax, dword [ebp + 8]
shr eax, 8
xor eax, dword [edx*4 + 0x4eb5f8]
mov dword [ebp + 8], eax
mov ecx, dword [ebp + 0xc]
add ecx, 1
mov dword [ebp + 0xc], ecx
mov edx, dword [ebp + 0xc]
movzx eax, byte [edx]
xor eax, dword [ebp + 8]
and eax, 0xff
mov ecx, dword [ebp + 8]
shr ecx, 8
xor ecx, dword [eax*4 + 0x4eb5f8]
mov dword [ebp + 8], ecx
mov edx, dword [ebp + 0xc]
add edx, 1
mov dword [ebp + 0xc], edx
mov eax, dword [ebp + 0xc]
movzx ecx, byte [eax]
xor ecx, dword [ebp + 8]
and ecx, 0xff
mov edx, dword [ebp + 8]
shr edx, 8
xor edx, dword [ecx*4 + 0x4eb5f8]
mov dword [ebp + 8], edx
mov eax, dword [ebp + 0xc]
add eax, 1
mov dword [ebp + 0xc], eax
mov ecx, dword [ebp + 0xc]
movzx edx, byte [ecx]
xor edx, dword [ebp + 8]
and edx, 0xff
mov eax, dword [ebp + 8]
shr eax, 8
xor eax, dword [edx*4 + 0x4eb5f8]
mov dword [ebp + 8], eax
mov ecx, dword [ebp + 0xc]
add ecx, 1
mov dword [ebp + 0xc], ecx
mov edx, dword [ebp + 0xc]
movzx eax, byte [edx]
xor eax, dword [ebp + 8]
and eax, 0xff
mov ecx, dword [ebp + 8]
shr ecx, 8
xor ecx, dword [eax*4 + 0x4eb5f8]
mov dword [ebp + 8], ecx
mov edx, dword [ebp + 0xc]
add edx, 1
mov dword [ebp + 0xc], edx
mov eax, dword [ebp + 0xc]
movzx ecx, byte [eax]
xor ecx, dword [ebp + 8]
and ecx, 0xff
mov edx, dword [ebp + 8]
shr edx, 8
xor edx, dword [ecx*4 + 0x4eb5f8]
mov dword [ebp + 8], edx
mov eax, dword [ebp + 0xc]
add eax, 1
mov dword [ebp + 0xc], eax
mov ecx, dword [ebp + 0xc]
movzx edx, byte [ecx]
xor edx, dword [ebp + 8]
and edx, 0xff
mov eax, dword [ebp + 8]
shr eax, 8
xor eax, dword [edx*4 + 0x4eb5f8]
mov dword [ebp + 8], eax
mov ecx, dword [ebp + 0xc]
add ecx, 1
mov dword [ebp + 0xc], ecx
mov edx, dword [ebp + 0x10]
sub edx, 8
mov dword [ebp + 0x10], edx
jmp 0x4c1cf6
cmp dword [ebp + 0x10], 0
je 0x4c1e85
mov eax, dword [ebp + 0xc]
movzx ecx, byte [eax]
xor ecx, dword [ebp + 8]
and ecx, 0xff
mov edx, dword [ebp + 8]
shr edx, 8
xor edx, dword [ecx*4 + 0x4eb5f8]
mov dword [ebp + 8], edx
mov eax, dword [ebp + 0xc]
add eax, 1
mov dword [ebp + 0xc], eax
mov ecx, dword [ebp + 0x10]
sub ecx, 1
mov dword [ebp + 0x10], ecx
jne 0x4c1e52
mov eax, dword [ebp + 8]
xor eax, 0xffffffff
mov esp, ebp
pop ebp
ret