Function at 0x4a70b0
Capabilities:
Encode data using xor
Encrypt data using aes
Reference aes constants

Disassembly:
mov edi, edi
push ebx
push ebp
push esi
push edi
push edx
sub esp, 0x20
mov eax, dword [esp + 0x40]
and eax, 0xfffffff0
je 0x4a736d
mov ebx, dword [ecx + 0x1d4]
mov dword [esp + 4], ebx
sub eax, 0x10
mov ecx, dword [ecx + 0x1d0]
mov dword [esp + 0x1c], ecx
mov edi, dword [esp + 0x3c]
add edi, eax
mov dword [esp + 0x18], edi
mov esi, dword [esp + 0x38]
add esi, eax
mov dword [esp + 0x38], esi
mov eax, dword [esi]
mov dword [esp + 8], eax
mov ebx, dword [esi + 4]
mov dword [esp + 0xc], ebx
mov edx, dword [esi + 8]
mov dword [esp + 0x10], edx
mov ebp, dword [esi + 0xc]
mov dword [esp + 0x14], ebp
jmp 0x4a7143
mov ebx, dword [esp + 0x38]
mov edx, dword [ebx - 8]
xor eax, edx
mov dword [esi + 0x18], eax
mov eax, dword [ebx - 0x10]
xor ecx, eax
mov dword [esi + 0x10], ecx
lea ecx, [ebx - 0x10]
mov ebx, dword [ebx - 0xc]
xor edi, ebx
mov dword [esi + 0x14], edi
mov edi, dword [ecx + 0xc]
xor ebp, edi
mov dword [esi + 0x1c], ebp
mov ebp, edi
mov dword [esp + 0x38], ecx
mov ecx, dword [esp + 0x1c]
xor eax, dword [ecx]
xor ebx, dword [ecx + 4]
xor edx, dword [ecx + 8]
xor ebp, dword [ecx + 0xc]
lea ecx, [ecx + 0x10]
mov dword [esp], ecx
push ebp
movzx ecx, al
mov ecx, dword [ecx*4 + 0x4b9000]
movzx esi, ah
shr eax, 0x10
mov edi, dword [esi*4 + 0x4b9400]
movzx ebp, ah
mov ebp, dword [ebp*4 + 0x4b9c00]
movzx eax, al
mov eax, dword [eax*4 + 0x4b9800]
movzx esi, bl
xor edi, dword [esi*4 + 0x4b9000]
movzx esi, bh
shr ebx, 0x10
xor eax, dword [esi*4 + 0x4b9400]
movzx esi, bl
xor ebp, dword [esi*4 + 0x4b9800]
movzx ebx, bh
xor ecx, dword [ebx*4 + 0x4b9c00]
pop ebx
movzx esi, dl
xor eax, dword [esi*4 + 0x4b9000]
movzx esi, dh
xor ebp, dword [esi*4 + 0x4b9400]
shr edx, 0x10
movzx esi, dl
xor ecx, dword [esi*4 + 0x4b9800]
movzx edx, dh
xor edi, dword [edx*4 + 0x4b9c00]
mov esi, dword [esp]
movzx edx, bl
xor ebp, dword [edx*4 + 0x4b9000]
movzx edx, bh
xor ecx, dword [edx*4 + 0x4b9400]
shr ebx, 0x10
movzx edx, bl
xor edi, dword [edx*4 + 0x4b9800]
movzx ebx, bh
xor eax, dword [ebx*4 + 0x4b9c00]
mov edx, dword [esi + 8]
xor edx, eax
mov eax, dword [esi]
xor eax, ecx
xor ebp, dword [esi + 0xc]
mov ebx, dword [esi + 4]
xor ebx, edi
add esi, 0x10
cmp esi, dword [esp + 4]
mov dword [esp], esi
jb 0x4a7154
push ebp
movzx ecx, al
movzx ecx, byte [ecx + 0x4ba000]
movzx edi, ah
shr eax, 0x10
movzx edi, byte [edi + 0x4ba000]
movzx esi, ah
shl edi, 8
movzx ebp, byte [esi + 0x4ba000]
movzx eax, al
shl ebp, 0x18
movzx eax, byte [eax + 0x4ba000]
shl eax, 0x10
movzx esi, bl
movzx esi, byte [esi + 0x4ba000]
or edi, esi
movzx esi, bh
shr ebx, 0x10
movzx esi, byte [esi + 0x4ba000]
shl esi, 8
or eax, esi
movzx esi, bl
movzx esi, byte [esi + 0x4ba000]
movzx ebx, bh
shl esi, 0x10
movzx ebx, byte [ebx + 0x4ba000]
or ebp, esi
shl ebx, 0x18
or ecx, ebx
movzx esi, dl
movzx esi, byte [esi + 0x4ba000]
movzx ebx, dh
shr edx, 0x10
movzx ebx, byte [ebx + 0x4ba000]
or eax, esi
shl ebx, 8
movzx esi, dl
movzx esi, byte [esi + 0x4ba000]
or ebp, ebx
pop ebx
movzx edx, dh
movzx edx, byte [edx + 0x4ba000]
shl esi, 0x10
or ecx, esi
shl edx, 0x18
or edi, edx
movzx esi, bl
movzx esi, byte [esi + 0x4ba000]
movzx edx, bh
shr ebx, 0x10
movzx edx, byte [edx + 0x4ba000]
or ebp, esi
shl edx, 8
or ecx, edx
mov edx, dword [esp]
movzx esi, bl
movzx esi, byte [esi + 0x4ba000]
movzx ebx, bh
movzx ebx, byte [ebx + 0x4ba000]
shl esi, 0x10
shl ebx, 0x18
or edi, esi
mov esi, dword [esp + 0x18]
or eax, ebx
xor ecx, dword [edx]
xor edi, dword [edx + 4]
xor eax, dword [edx + 8]
xor ebp, dword [edx + 0xc]
cmp esi, dword [esp + 0x3c]
lea esi, [esi - 0x10]
mov dword [esp + 0x18], esi
ja 0x4a7112
mov ebx, dword [esp + 0x20]
xor ecx, dword [ebx]
mov dword [esi + 0x10], ecx
xor edi, dword [ebx + 4]
mov dword [esi + 0x14], edi
xor eax, dword [ebx + 8]
mov dword [esi + 0x18], eax
xor ebp, dword [ebx + 0xc]
mov dword [esi + 0x1c], ebp
mov eax, dword [esp + 8]
mov dword [ebx], eax
mov ecx, dword [esp + 0xc]
mov dword [ebx + 4], ecx
mov eax, dword [esp + 0x10]
mov dword [ebx + 8], eax
mov ecx, dword [esp + 0x14]
mov dword [ebx + 0xc], ecx
mov dword [esp - 8], esp
add esp, 0x24
pop edi
pop esi
pop ebp
pop ebx
ret 0xc