Function at 0x403bc0
Capabilities:
Encode data using xor
Encrypt data using aes
Reference aes constants

Disassembly:
sub esp, 0x18
mov edx, dword [edi + 0x1c]
push ebx
mov ebx, dword [esp + 0x20]
lea ecx, [edx + 2]
shl edx, 4
push ebp
mov ebp, dword [edx + edi + 0x28]
xor ebp, dword [ebx + 8]
push esi
lea esi, [edx + edi]
mov edx, dword [esi + 0x24]
xor edx, dword [ebx + 4]
mov esi, dword [esi + 0x2c]
xor esi, dword [ebx + 0xc]
shl ecx, 4
mov ecx, dword [ecx + edi]
xor ecx, dword [ebx]
mov ebx, esi
shr ebx, 8
mov dword [esp + 0x20], esi
movzx esi, bl
mov esi, dword [esi*4 + 0x428608]
mov eax, dword [esp + 0x2c]
mov ebx, ebp
shr ebx, 0x10
movzx ebx, bl
xor esi, dword [ebx*4 + 0x428a08]
mov ebx, edx
shr ebx, 0x18
xor esi, dword [ebx*4 + 0x428e08]
movzx ebx, cl
xor esi, dword [ebx*4 + 0x428208]
mov ebx, dword [esp + 0x20]
mov dword [eax], esi
shr ebx, 0x10
movzx esi, bl
mov esi, dword [esi*4 + 0x428a08]
mov ebx, ebp
shr ebx, 0x18
xor esi, dword [ebx*4 + 0x428e08]
mov ebx, ecx
shr ebx, 8
movzx ebx, bl
xor esi, dword [ebx*4 + 0x428608]
movzx ebx, dl
xor esi, dword [ebx*4 + 0x428208]
mov ebx, edx
mov dword [eax + 4], esi
mov esi, dword [esp + 0x20]
shr esi, 0x18
mov esi, dword [esi*4 + 0x428e08]
shr ebx, 8
movzx ebx, bl
xor esi, dword [ebx*4 + 0x428608]
mov ebx, ecx
shr ebx, 0x10
movzx ebx, bl
xor esi, dword [ebx*4 + 0x428a08]
mov ebx, ebp
mov dword [esp + 0x1c], ebp
movzx ebp, bl
xor esi, dword [ebp*4 + 0x428208]
shr ebx, 8
mov dword [eax + 8], esi
shr edx, 0x10
movzx esi, bl
mov esi, dword [esi*4 + 0x428608]
movzx edx, dl
xor esi, dword [edx*4 + 0x428a08]
shr ecx, 0x18
xor esi, dword [ecx*4 + 0x428e08]
movzx ecx, byte [esp + 0x20]
xor esi, dword [ecx*4 + 0x428208]
mov dword [eax + 0xc], esi
mov ecx, dword [edi + 0x1c]
sub ecx, 1
cmp ecx, 1
jle 0x403e25
mov edx, ecx
shl edx, 4
add ecx, 0xffffffff
lea esi, [edx + edi + 0x24]
mov dword [esp + 0x10], ecx
lea esp, [esp]
mov ebp, dword [esi + 4]
xor ebp, dword [eax + 8]
mov ecx, dword [esi - 4]
xor ecx, dword [eax]
mov edx, dword [eax + 4]
xor edx, dword [esi]
mov dword [esp + 0x1c], ebp
mov ebp, dword [esi + 8]
xor ebp, dword [eax + 0xc]
mov dword [esp + 0xc], eax
mov eax, dword [esp + 0x1c]
mov ebx, ebp
shr ebx, 8
movzx ebx, bl
mov ebx, dword [ebx*4 + 0x428608]
mov dword [esp + 0x20], ebp
shr eax, 0x10
movzx ebp, al
xor ebx, dword [ebp*4 + 0x428a08]
mov eax, dword [esp + 0xc]
mov ebp, edx
shr ebp, 0x18
xor ebx, dword [ebp*4 + 0x428e08]
movzx ebp, cl
xor ebx, dword [ebp*4 + 0x428208]
mov ebp, dword [esp + 0x1c]
mov dword [eax], ebx
mov ebx, dword [esp + 0x20]
shr ebx, 0x10
movzx ebx, bl
mov ebx, dword [ebx*4 + 0x428a08]
mov dword [esp + 0xc], ecx
shr ecx, 8
shr ebp, 0x18
xor ebx, dword [ebp*4 + 0x428e08]
movzx ebp, cl
xor ebx, dword [ebp*4 + 0x428608]
movzx ebp, dl
xor ebx, dword [ebp*4 + 0x428208]
mov ecx, edx
mov dword [eax + 4], ebx
mov ebx, dword [esp + 0x20]
shr ebx, 0x18
mov ebx, dword [ebx*4 + 0x428e08]
shr ecx, 8
movzx ebp, cl
xor ebx, dword [ebp*4 + 0x428608]
mov ecx, dword [esp + 0xc]
mov dword [esp + 0xc], ecx
shr ecx, 0x10
movzx ebp, cl
xor ebx, dword [ebp*4 + 0x428a08]
movzx ebp, byte [esp + 0x1c]
xor ebx, dword [ebp*4 + 0x428208]
mov ecx, dword [esp + 0xc]
mov dword [eax + 8], ebx
mov ebx, dword [esp + 0x1c]
shr ebx, 8
movzx ebx, bl
mov ebx, dword [ebx*4 + 0x428608]
shr edx, 0x10
movzx edx, dl
xor ebx, dword [edx*4 + 0x428a08]
shr ecx, 0x18
xor ebx, dword [ecx*4 + 0x428e08]
movzx ecx, byte [esp + 0x20]
xor ebx, dword [ecx*4 + 0x428208]
sub esi, 0x10
sub dword [esp + 0x10], 1
mov dword [eax + 0xc], ebx
jne 0x403d00
mov esi, dword [edi + 0x38]
xor esi, dword [eax + 8]
mov ecx, dword [edi + 0x30]
xor ecx, dword [eax]
mov edx, dword [edi + 0x34]
mov dword [esp + 0x1c], esi
mov esi, dword [edi + 0x3c]
xor esi, dword [eax + 0xc]
xor edx, dword [eax + 4]
mov dword [esp + 0x20], esi
movzx esi, cl
movzx ebx, byte [esi + 0x429208]
mov byte [eax], bl
mov ebx, dword [esp + 0x20]
shr ebx, 8
movzx esi, bl
movzx ebx, byte [esi + 0x429208]
mov byte [eax + 1], bl
mov ebx, dword [esp + 0x1c]
shr ebx, 0x10
movzx esi, bl
movzx ebx, byte [esi + 0x429208]
mov byte [eax + 2], bl
mov esi, edx
shr esi, 0x18
movzx ebx, byte [esi + 0x429208]
mov byte [eax + 3], bl
movzx esi, dl
movzx ebx, byte [esi + 0x429208]
mov byte [eax + 4], bl
mov ebx, ecx
shr ebx, 8
movzx esi, bl
movzx ebx, byte [esi + 0x429208]
mov byte [eax + 5], bl
mov ebx, dword [esp + 0x20]
shr ebx, 0x10
movzx esi, bl
movzx ebx, byte [esi + 0x429208]
mov esi, dword [esp + 0x1c]
mov byte [eax + 6], bl
shr esi, 0x18
movzx ebx, byte [esi + 0x429208]
movzx esi, byte [esp + 0x1c]
mov byte [eax + 7], bl
movzx ebx, byte [esi + 0x429208]
mov byte [eax + 8], bl
mov ebx, edx
shr ebx, 8
movzx esi, bl
movzx ebx, byte [esi + 0x429208]
mov byte [eax + 9], bl
mov ebx, ecx
shr ebx, 0x10
movzx esi, bl
movzx ebx, byte [esi + 0x429208]
mov esi, dword [esp + 0x20]
mov byte [eax + 0xa], bl
shr esi, 0x18
movzx ebx, byte [esi + 0x429208]
movzx esi, byte [esp + 0x20]
mov byte [eax + 0xb], bl
movzx ebx, byte [esi + 0x429208]
mov byte [eax + 0xc], bl
mov ebx, dword [esp + 0x1c]
shr ebx, 8
shr edx, 0x10
movzx esi, bl
movzx ebx, byte [esi + 0x429208]
movzx edx, dl
mov byte [eax + 0xd], bl
mov dl, byte [edx + 0x429208]
mov byte [eax + 0xe], dl
shr ecx, 0x18
mov cl, byte [ecx + 0x429208]
mov byte [eax + 0xf], cl
mov edx, dword [edi + 0x20]
xor dword [eax], edx
mov ecx, dword [edi + 0x24]
xor dword [eax + 4], ecx
mov edx, dword [edi + 0x28]
xor dword [eax + 8], edx
mov ecx, dword [edi + 0x2c]
xor dword [eax + 0xc], ecx
pop esi
pop ebp
pop ebx
add esp, 0x18
ret 8