Function at 0x5a0920
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
push ebp
mov ebp, esp
sub esp, 8
mov dword [ebp - 8], 0xcccccccc
mov dword [ebp - 4], 0xcccccccc
mov eax, dword [ebp + 8]
mov dword [ebp - 4], eax
mov ecx, dword [ebp - 4]
not ecx
mov dword [ebp - 4], ecx
cmp dword [ebp + 0x10], 0
je 0x5a0983
mov edx, dword [ebp + 0xc]
and edx, 3
je 0x5a0983
mov eax, dword [ebp + 0xc]
movzx ecx, byte [eax]
xor ecx, dword [ebp - 4]
and ecx, 0xff
mov edx, dword [ebp - 4]
shr edx, 8
xor edx, dword [ecx*4 + 0x6485c0]
mov dword [ebp - 4], 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
jmp 0x5a0942
mov edx, dword [ebp + 0xc]
mov dword [ebp - 8], edx
cmp dword [ebp + 0x10], 0x20
jb 0x5a0c68
mov eax, dword [ebp - 8]
mov ecx, dword [ebp - 4]
xor ecx, dword [eax]
mov dword [ebp - 4], ecx
mov edx, dword [ebp - 8]
add edx, 4
mov dword [ebp - 8], edx
mov eax, dword [ebp - 4]
and eax, 0xff
mov ecx, dword [ebp - 4]
shr ecx, 8
and ecx, 0xff
mov edx, dword [eax*4 + 0x6491c0]
xor edx, dword [ecx*4 + 0x648dc0]
mov eax, dword [ebp - 4]
shr eax, 0x10
and eax, 0xff
xor edx, dword [eax*4 + 0x6489c0]
mov ecx, dword [ebp - 4]
shr ecx, 0x18
xor edx, dword [ecx*4 + 0x6485c0]
mov dword [ebp - 4], edx
mov edx, dword [ebp - 8]
mov eax, dword [ebp - 4]
xor eax, dword [edx]
mov dword [ebp - 4], eax
mov ecx, dword [ebp - 8]
add ecx, 4
mov dword [ebp - 8], ecx
mov edx, dword [ebp - 4]
and edx, 0xff
mov eax, dword [ebp - 4]
shr eax, 8
and eax, 0xff
mov ecx, dword [edx*4 + 0x6491c0]
xor ecx, dword [eax*4 + 0x648dc0]
mov edx, dword [ebp - 4]
shr edx, 0x10
and edx, 0xff
xor ecx, dword [edx*4 + 0x6489c0]
mov eax, dword [ebp - 4]
shr eax, 0x18
xor ecx, dword [eax*4 + 0x6485c0]
mov dword [ebp - 4], ecx
mov ecx, dword [ebp - 8]
mov edx, dword [ebp - 4]
xor edx, dword [ecx]
mov dword [ebp - 4], edx
mov eax, dword [ebp - 8]
add eax, 4
mov dword [ebp - 8], eax
mov ecx, dword [ebp - 4]
and ecx, 0xff
mov edx, dword [ebp - 4]
shr edx, 8
and edx, 0xff
mov eax, dword [ecx*4 + 0x6491c0]
xor eax, dword [edx*4 + 0x648dc0]
mov ecx, dword [ebp - 4]
shr ecx, 0x10
and ecx, 0xff
xor eax, dword [ecx*4 + 0x6489c0]
mov edx, dword [ebp - 4]
shr edx, 0x18
xor eax, dword [edx*4 + 0x6485c0]
mov dword [ebp - 4], eax
mov eax, dword [ebp - 8]
mov ecx, dword [ebp - 4]
xor ecx, dword [eax]
mov dword [ebp - 4], ecx
mov edx, dword [ebp - 8]
add edx, 4
mov dword [ebp - 8], edx
mov eax, dword [ebp - 4]
and eax, 0xff
mov ecx, dword [ebp - 4]
shr ecx, 8
and ecx, 0xff
mov edx, dword [eax*4 + 0x6491c0]
xor edx, dword [ecx*4 + 0x648dc0]
mov eax, dword [ebp - 4]
shr eax, 0x10
and eax, 0xff
xor edx, dword [eax*4 + 0x6489c0]
mov ecx, dword [ebp - 4]
shr ecx, 0x18
xor edx, dword [ecx*4 + 0x6485c0]
mov dword [ebp - 4], edx
mov edx, dword [ebp - 8]
mov eax, dword [ebp - 4]
xor eax, dword [edx]
mov dword [ebp - 4], eax
mov ecx, dword [ebp - 8]
add ecx, 4
mov dword [ebp - 8], ecx
mov edx, dword [ebp - 4]
and edx, 0xff
mov eax, dword [ebp - 4]
shr eax, 8
and eax, 0xff
mov ecx, dword [edx*4 + 0x6491c0]
xor ecx, dword [eax*4 + 0x648dc0]
mov edx, dword [ebp - 4]
shr edx, 0x10
and edx, 0xff
xor ecx, dword [edx*4 + 0x6489c0]
mov eax, dword [ebp - 4]
shr eax, 0x18
xor ecx, dword [eax*4 + 0x6485c0]
mov dword [ebp - 4], ecx
mov ecx, dword [ebp - 8]
mov edx, dword [ebp - 4]
xor edx, dword [ecx]
mov dword [ebp - 4], edx
mov eax, dword [ebp - 8]
add eax, 4
mov dword [ebp - 8], eax
mov ecx, dword [ebp - 4]
and ecx, 0xff
mov edx, dword [ebp - 4]
shr edx, 8
and edx, 0xff
mov eax, dword [ecx*4 + 0x6491c0]
xor eax, dword [edx*4 + 0x648dc0]
mov ecx, dword [ebp - 4]
shr ecx, 0x10
and ecx, 0xff
xor eax, dword [ecx*4 + 0x6489c0]
mov edx, dword [ebp - 4]
shr edx, 0x18
xor eax, dword [edx*4 + 0x6485c0]
mov dword [ebp - 4], eax
mov eax, dword [ebp - 8]
mov ecx, dword [ebp - 4]
xor ecx, dword [eax]
mov dword [ebp - 4], ecx
mov edx, dword [ebp - 8]
add edx, 4
mov dword [ebp - 8], edx
mov eax, dword [ebp - 4]
and eax, 0xff
mov ecx, dword [ebp - 4]
shr ecx, 8
and ecx, 0xff
mov edx, dword [eax*4 + 0x6491c0]
xor edx, dword [ecx*4 + 0x648dc0]
mov eax, dword [ebp - 4]
shr eax, 0x10
and eax, 0xff
xor edx, dword [eax*4 + 0x6489c0]
mov ecx, dword [ebp - 4]
shr ecx, 0x18
xor edx, dword [ecx*4 + 0x6485c0]
mov dword [ebp - 4], edx
mov edx, dword [ebp - 8]
mov eax, dword [ebp - 4]
xor eax, dword [edx]
mov dword [ebp - 4], eax
mov ecx, dword [ebp - 8]
add ecx, 4
mov dword [ebp - 8], ecx
mov edx, dword [ebp - 4]
and edx, 0xff
mov eax, dword [ebp - 4]
shr eax, 8
and eax, 0xff
mov ecx, dword [edx*4 + 0x6491c0]
xor ecx, dword [eax*4 + 0x648dc0]
mov edx, dword [ebp - 4]
shr edx, 0x10
and edx, 0xff
xor ecx, dword [edx*4 + 0x6489c0]
mov eax, dword [ebp - 4]
shr eax, 0x18
xor ecx, dword [eax*4 + 0x6485c0]
mov dword [ebp - 4], ecx
mov ecx, dword [ebp + 0x10]
sub ecx, 0x20
mov dword [ebp + 0x10], ecx
jmp 0x5a0989
cmp dword [ebp + 0x10], 4
jb 0x5a0cd2
mov edx, dword [ebp - 8]
mov eax, dword [ebp - 4]
xor eax, dword [edx]
mov dword [ebp - 4], eax
mov ecx, dword [ebp - 8]
add ecx, 4
mov dword [ebp - 8], ecx
mov edx, dword [ebp - 4]
and edx, 0xff
mov eax, dword [ebp - 4]
shr eax, 8
and eax, 0xff
mov ecx, dword [edx*4 + 0x6491c0]
xor ecx, dword [eax*4 + 0x648dc0]
mov edx, dword [ebp - 4]
shr edx, 0x10
and edx, 0xff
xor ecx, dword [edx*4 + 0x6489c0]
mov eax, dword [ebp - 4]
shr eax, 0x18
xor ecx, dword [eax*4 + 0x6485c0]
mov dword [ebp - 4], ecx
mov ecx, dword [ebp + 0x10]
sub ecx, 4
mov dword [ebp + 0x10], ecx
jmp 0x5a0c68
mov edx, dword [ebp - 8]
mov dword [ebp + 0xc], edx
cmp dword [ebp + 0x10], 0
je 0x5a0d11
mov eax, dword [ebp + 0xc]
movzx ecx, byte [eax]
xor ecx, dword [ebp - 4]
and ecx, 0xff
mov edx, dword [ebp - 4]
shr edx, 8
xor edx, dword [ecx*4 + 0x6485c0]
mov dword [ebp - 4], 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 0x5a0cde
mov edx, dword [ebp - 4]
not edx
mov dword [ebp - 4], edx
mov eax, dword [ebp - 4]
mov esp, ebp
pop ebp
ret