Function at 0x42fd10
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x44
push ebx
push esi
push edi
lea edi, [ebp - 0x44]
mov ecx, 0x11
mov eax, 0xcccccccc
rep stosd dword es:[edi], eax
cmp dword [ebp + 0xc], 0
jne 0x42fd35
xor eax, eax
jmp 0x42ff54
mov eax, 1
test eax, eax
je 0x42fd84
mov dword [ebp - 4], 1
mov ecx, dword [ebp - 4]
and ecx, 0xff
test ecx, ecx
je 0x42fd6b
mov edx, dword [ebp + 0x10]
push edx
mov eax, dword [ebp + 0xc]
push eax
mov ecx, dword [ebp + 8]
push ecx
call fcn.0042ff70
add esp, 0xc
jmp 0x42ff54
mov edx, dword [ebp + 0x10]
push edx
mov eax, dword [ebp + 0xc]
push eax
mov ecx, dword [ebp + 8]
push ecx
call fcn.00430390
add esp, 0xc
jmp 0x42ff54
mov edx, dword [ebp + 8]
xor edx, 0xffffffff
mov dword [ebp + 8], edx
cmp dword [ebp + 0x10], 8
jb 0x42ff0d
mov eax, dword [ebp + 0xc]
xor ecx, ecx
mov cl, byte [eax]
mov edx, dword [ebp + 8]
xor edx, ecx
and edx, 0xff
mov eax, dword [ebp + 8]
shr eax, 8
mov ecx, dword [edx*4 + 0x4d66b0]
xor ecx, eax
mov dword [ebp + 8], ecx
mov edx, dword [ebp + 0xc]
add edx, 1
mov dword [ebp + 0xc], edx
mov eax, dword [ebp + 0xc]
xor ecx, ecx
mov cl, byte [eax]
mov edx, dword [ebp + 8]
xor edx, ecx
and edx, 0xff
mov eax, dword [ebp + 8]
shr eax, 8
mov ecx, dword [edx*4 + 0x4d66b0]
xor ecx, eax
mov dword [ebp + 8], ecx
mov edx, dword [ebp + 0xc]
add edx, 1
mov dword [ebp + 0xc], edx
mov eax, dword [ebp + 0xc]
xor ecx, ecx
mov cl, byte [eax]
mov edx, dword [ebp + 8]
xor edx, ecx
and edx, 0xff
mov eax, dword [ebp + 8]
shr eax, 8
mov ecx, dword [edx*4 + 0x4d66b0]
xor ecx, eax
mov dword [ebp + 8], ecx
mov edx, dword [ebp + 0xc]
add edx, 1
mov dword [ebp + 0xc], edx
mov eax, dword [ebp + 0xc]
xor ecx, ecx
mov cl, byte [eax]
mov edx, dword [ebp + 8]
xor edx, ecx
and edx, 0xff
mov eax, dword [ebp + 8]
shr eax, 8
mov ecx, dword [edx*4 + 0x4d66b0]
xor ecx, eax
mov dword [ebp + 8], ecx
mov edx, dword [ebp + 0xc]
add edx, 1
mov dword [ebp + 0xc], edx
mov eax, dword [ebp + 0xc]
xor ecx, ecx
mov cl, byte [eax]
mov edx, dword [ebp + 8]
xor edx, ecx
and edx, 0xff
mov eax, dword [ebp + 8]
shr eax, 8
mov ecx, dword [edx*4 + 0x4d66b0]
xor ecx, eax
mov dword [ebp + 8], ecx
mov edx, dword [ebp + 0xc]
add edx, 1
mov dword [ebp + 0xc], edx
mov eax, dword [ebp + 0xc]
xor ecx, ecx
mov cl, byte [eax]
mov edx, dword [ebp + 8]
xor edx, ecx
and edx, 0xff
mov eax, dword [ebp + 8]
shr eax, 8
mov ecx, dword [edx*4 + 0x4d66b0]
xor ecx, eax
mov dword [ebp + 8], ecx
mov edx, dword [ebp + 0xc]
add edx, 1
mov dword [ebp + 0xc], edx
mov eax, dword [ebp + 0xc]
xor ecx, ecx
mov cl, byte [eax]
mov edx, dword [ebp + 8]
xor edx, ecx
and edx, 0xff
mov eax, dword [ebp + 8]
shr eax, 8
mov ecx, dword [edx*4 + 0x4d66b0]
xor ecx, eax
mov dword [ebp + 8], ecx
mov edx, dword [ebp + 0xc]
add edx, 1
mov dword [ebp + 0xc], edx
mov eax, dword [ebp + 0xc]
xor ecx, ecx
mov cl, byte [eax]
mov edx, dword [ebp + 8]
xor edx, ecx
and edx, 0xff
mov eax, dword [ebp + 8]
shr eax, 8
mov ecx, dword [edx*4 + 0x4d66b0]
xor ecx, eax
mov dword [ebp + 8], ecx
mov edx, dword [ebp + 0xc]
add edx, 1
mov dword [ebp + 0xc], edx
mov eax, dword [ebp + 0x10]
sub eax, 8
mov dword [ebp + 0x10], eax
jmp 0x42fd8d
cmp dword [ebp + 0x10], 0
je 0x42ff4e
mov ecx, dword [ebp + 0xc]
xor edx, edx
mov dl, byte [ecx]
mov eax, dword [ebp + 8]
xor eax, edx
and eax, 0xff
mov ecx, dword [ebp + 8]
shr ecx, 8
mov edx, dword [eax*4 + 0x4d66b0]
xor edx, ecx
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
cmp dword [ebp + 0x10], 0
jne 0x42ff13
mov eax, dword [ebp + 8]
xor eax, 0xffffffff
pop edi
pop esi
pop ebx
add esp, 0x44
cmp ebp, esp
call fcn.004479c0
mov esp, ebp
pop ebp
ret