Function at 0x490670
Capabilities:
Encode data using xor
Hash data using murmur3

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x28
mov eax, dword [ebp + 8]
push ebx
push esi
push edi
mov ecx, dword [eax + 4]
lea edx, [eax + 0x28]
mov ebx, dword [eax]
xor edi, edi
mov dword [ebp - 0x18], ecx
mov ecx, dword [eax + 8]
mov dword [ebp - 0xc], ecx
mov ecx, dword [eax + 0xc]
mov dword [ebp - 0x1c], ecx
mov ecx, dword [eax + 0x10]
mov dword [ebp - 4], ecx
mov ecx, dword [eax + 0x14]
mov dword [ebp - 0x10], ecx
mov ecx, dword [eax + 0x18]
mov dword [ebp - 0x14], ecx
mov ecx, dword [eax + 0x1c]
mov dword [ebp - 0x20], ecx
mov ecx, edx
sub ecx, 0x54d810
mov dword [ebp - 0x28], edx
mov dword [ebp - 8], edi
mov dword [ebp - 0x24], ecx
jmp 0x4906c3
mov edi, dword [ebp - 8]
mov ecx, dword [ebp + 0xc]
mov edx, dword [ecx]
add ecx, 4
mov dword [ebp + 0xc], ecx
rol edx, 0x10
mov esi, edx
mov ecx, edx
shl ecx, 8
shr esi, 8
xor esi, ecx
shl edx, 8
mov ecx, dword [ebp - 0x24]
and esi, 0xff00ff
xor esi, edx
mov edx, dword [ebp - 4]
mov dword [ecx + edi*4 + 0x54d810], esi
mov edi, edx
mov ecx, edx
ror edi, 0xb
rol ecx, 7
xor edi, ecx
mov ecx, edx
ror ecx, 6
not edx
and edx, dword [ebp - 0x14]
xor edi, ecx
mov ecx, dword [ebp - 0x10]
and ecx, dword [ebp - 4]
xor edx, ecx
mov ecx, dword [ebp - 8]
add edi, edx
add edi, dword [ecx*4 + 0x54d810]
mov ecx, ebx
rol ecx, 0xa
add edi, esi
add edi, dword [ebp - 0x20]
mov esi, ebx
ror esi, 0xd
xor esi, ecx
mov ecx, ebx
ror ecx, 2
xor esi, ecx
mov ecx, dword [ebp - 0x18]
mov edx, ecx
and ecx, ebx
xor edx, ebx
and edx, dword [ebp - 0xc]
xor edx, ecx
mov ecx, dword [ebp - 0x14]
mov dword [ebp - 0x20], ecx
add esi, edx
mov ecx, dword [ebp - 0x10]
mov dword [ebp - 0x14], ecx
mov ecx, dword [ebp - 4]
mov dword [ebp - 0x10], ecx
mov ecx, dword [ebp - 0x1c]
add ecx, edi
mov dword [ebp - 4], ecx
mov ecx, dword [ebp - 0xc]
mov dword [ebp - 0x1c], ecx
mov ecx, dword [ebp - 0x18]
mov dword [ebp - 0x18], ebx
lea ebx, [esi + edi]
mov esi, dword [ebp - 8]
inc esi
mov dword [ebp - 0xc], ecx
mov dword [ebp - 8], esi
cmp esi, 0x10
jl 0x4906c0
lea ecx, [esi - 2]
mov dword [ebp - 0x24], ebx
mov dword [ebp + 0xc], ecx
mov eax, ebx
mov ebx, dword [ebp - 0x28]
add ecx, 3
and ecx, 0xf
and esi, 0xf
mov edi, dword [ebx + ecx*4]
mov ecx, dword [ebp + 0xc]
and ecx, 0xf
mov edx, dword [ebx + ecx*4]
lea ebx, [ebx + esi*4]
mov esi, edx
mov ecx, edx
rol ecx, 0xd
shr edx, 0xa
rol esi, 0xf
xor esi, ecx
mov ecx, edi
xor esi, edx
ror ecx, 7
mov edx, edi
shr edi, 3
rol edx, 0xe
xor edx, ecx
mov ecx, dword [ebp + 0xc]
xor edx, edi
add ecx, 0xfffffffb
add esi, edx
and ecx, 0xf
mov edx, dword [ebp - 0x28]
add esi, dword [edx + ecx*4]
add dword [ebx], esi
mov esi, dword [ebp - 4]
mov edi, esi
mov ecx, esi
ror edi, 0xb
rol ecx, 7
mov edx, esi
xor edi, ecx
not edx
and edx, dword [ebp - 0x14]
mov ecx, esi
ror ecx, 6
xor edi, ecx
mov ecx, dword [ebp - 0x10]
and ecx, esi
mov esi, eax
xor edx, ecx
ror esi, 0xd
mov ecx, dword [ebp - 8]
add edi, edx
add edi, dword [ecx*4 + 0x54d810]
mov ecx, eax
add edi, dword [ebx]
mov ebx, dword [ebp - 0x18]
mov edx, ebx
add edi, dword [ebp - 0x20]
xor edx, eax
and edx, dword [ebp - 0xc]
rol ecx, 0xa
xor esi, ecx
mov dword [ebp - 0x18], eax
mov ecx, eax
ror ecx, 2
xor esi, ecx
mov ecx, ebx
and ecx, eax
xor edx, ecx
mov ecx, dword [ebp - 0x14]
mov dword [ebp - 0x20], ecx
add esi, edx
mov ecx, dword [ebp - 0x10]
mov edx, dword [ebp - 0x1c]
mov dword [ebp - 0x14], ecx
add edx, edi
mov ecx, dword [ebp - 4]
mov dword [ebp - 0x10], ecx
mov ecx, dword [ebp - 0xc]
mov dword [ebp - 0xc], ebx
mov ebx, eax
mov dword [ebp - 4], edx
lea eax, [esi + edi]
mov dword [ebp - 0x1c], ecx
mov esi, dword [ebp - 8]
mov ecx, dword [ebp + 0xc]
inc esi
inc ecx
mov dword [ebp - 8], esi
mov dword [ebp + 0xc], ecx
cmp esi, 0x40
jl 0x490790
mov dword [ebp - 0x24], eax
mov eax, dword [ebp + 8]
mov ecx, dword [ebp - 0x24]
pop edi
pop esi
add dword [eax], ecx
mov ecx, dword [ebp - 0xc]
add dword [eax + 8], ecx
mov ecx, dword [ebp - 0x1c]
add dword [eax + 0xc], ecx
mov ecx, dword [ebp - 0x10]
add dword [eax + 0x14], ecx
mov ecx, dword [ebp - 0x14]
add dword [eax + 0x18], ecx
add dword [eax + 4], ebx
add dword [eax + 0x10], edx
mov ecx, dword [ebp - 0x20]
add dword [eax + 0x1c], ecx
pop ebx
mov esp, ebp
pop ebp
ret