Function at 0x40def0
Capabilities:
Encode data using xor
Encrypt data using aes
Encrypt data using rc4 ksa
Reference aes constants

Disassembly:
sub esp, 0x1c
cmp dword [esp + 0x20], 0
jne 0x40df1f
lea eax, [esp + 0x20]
push eax
lea ecx, [esp + 0x14]
mov dword [esp + 0x24], str.Empty_key
call fcn.0043f71d
push 0x4b0f08
lea ecx, [esp + 0x14]
push ecx
call fcn.00442c9b
push ebx
push ebp
push edi
mov edi, 0x10
mov dword [esi + 0x3cc], edi
mov dword [esi + 0x3c8], edi
mov edx, dword [0x4ad2dc]
mov dword [esi + 0x3d4], edx
mov eax, dword [0x4ad2e0]
mov dword [esi + 0x3d8], eax
mov ecx, dword [0x4ad2e4]
mov dword [esi + 0x3dc], ecx
mov edx, dword [0x4ad2e8]
mov dword [esi + 0x3e0], edx
mov eax, dword [esi + 0x3cc]
push eax
lea ecx, [esi + 0x3f4]
push 0x4ad2dc
push ecx
call fcn.00444b20
mov eax, dword [esi + 0x3c8]
add esp, 0xc
cmp eax, edi
je 0x40dfb0
cmp eax, 0x18
je 0x40df98
mov dword [esi + 0x3d0], 0xe
jmp 0x40dfd5
xor edx, edx
cmp dword [esi + 0x3cc], 0x20
sete dl
lea edx, [edx + edx + 0xc]
mov dword [esi + 0x3d0], edx
jmp 0x40dfd5
mov eax, dword [esi + 0x3cc]
cmp eax, edi
jne 0x40dfc1
mov eax, 0xa
jmp 0x40dfcf
xor ecx, ecx
cmp eax, 0x18
setne cl
lea ecx, [ecx + ecx + 0xc]
mov eax, ecx
mov dword [esi + 0x3d0], eax
mov eax, dword [esi + 0x3cc]
cdq
and edx, 3
add eax, edx
mov ebp, eax
sar ebp, 2
xor edx, edx
cmp dword [esi + 0x3d0], edx
mov dword [esp + 0xc], ebp
jl 0x40e00f
lea ebx, [esi + 8]
test ebp, ebp
jle 0x40e003
mov ecx, ebp
xor eax, eax
mov edi, ebx
rep stosd dword es:[edi], eax
inc edx
add ebx, 0x20
cmp edx, dword [esi + 0x3d0]
jle 0x40dff7
xor edx, edx
cmp dword [esi + 0x3d0], edx
jl 0x40e038
lea ebx, [esi + 0x1e8]
nop
test ebp, ebp
jle 0x40e02c
mov ecx, ebp
xor eax, eax
mov edi, ebx
rep stosd dword es:[edi], eax
inc edx
add ebx, 0x20
cmp edx, dword [esi + 0x3d0]
jle 0x40e020
mov eax, dword [esi + 0x3d0]
inc eax
imul eax, ebp
mov dword [esp + 0x10], eax
mov eax, dword [esi + 0x3c8]
cdq
and edx, 3
add eax, edx
mov edi, eax
mov eax, dword [esp + 0x2c]
sar edi, 2
lea ecx, [esi + 0x414]
test edi, edi
jle 0x40e093
mov edx, edi
movzx ebx, byte [eax]
shl ebx, 0x18
mov dword [ecx], ebx
movzx ebx, byte [eax + 1]
inc eax
shl ebx, 0x10
or dword [ecx], ebx
movzx ebx, byte [eax + 1]
inc eax
shl ebx, 8
or dword [ecx], ebx
movzx ebx, byte [eax + 1]
or dword [ecx], ebx
inc eax
inc eax
add ecx, 4
sub edx, 1
jne 0x40e067
xor ebx, ebx
mov dword [esp + 0x2c], ebx
test edi, edi
jle 0x40e0e7
lea ecx, [esi + 0x414]
mov dword [esp + 0x2c], ecx
cmp ebx, dword [esp + 0x10]
jge 0x40e0e3
mov eax, ebx
cdq
idiv ebp
mov ecx, dword [ecx]
inc ebx
lea ebp, [edx + eax*8]
mov dword [esi + ebp*4 + 8], ecx
mov ecx, dword [esi + 0x3d0]
mov ebp, dword [esp + 0xc]
sub ecx, eax
lea edx, [edx + ecx*8]
mov ecx, dword [esp + 0x2c]
mov eax, dword [ecx]
add ecx, 4
cmp ebx, edi
mov dword [esi + edx*4 + 0x1e8], eax
mov dword [esp + 0x2c], ecx
jl 0x40e0a7
mov dword [esp + 0x2c], ebx
cmp ebx, dword [esp + 0x10]
jge 0x40e284
mov dword [esp + 0x14], 0x4a7318
lea esp, [esp]
mov eax, dword [esi + edi*4 + 0x410]
mov ecx, eax
sar ecx, 0x10
and ecx, 0xff
movsx edx, byte [ecx + str.cw]
mov ecx, dword [esp + 0x14]
movsx ecx, byte [ecx]
xor edx, ecx
inc dword [esp + 0x14]
mov ecx, eax
sar ecx, 8
and ecx, 0xff
movzx ecx, byte [ecx + str.cw]
shl edx, 8
xor edx, ecx
mov ecx, eax
and ecx, 0xff
movzx ecx, byte [ecx + str.cw]
sar eax, 0x18
shl edx, 8
and eax, 0xff
movzx eax, byte [eax + str.cw]
xor edx, ecx
shl edx, 8
xor edx, eax
xor dword [esi + 0x414], edx
cmp edi, 8
je 0x40e194
cmp edi, 1
jle 0x40e222
lea eax, [esi + 0x418]
lea ecx, [edi - 1]
mov edx, dword [eax - 4]
xor dword [eax], edx
add eax, 4
sub ecx, 1
jne 0x40e182
jmp 0x40e222
lea eax, [esi + 0x418]
mov ecx, 3
nop
mov edx, dword [eax - 4]
xor dword [eax], edx
add eax, 4
sub ecx, 1
jne 0x40e1a0
mov eax, dword [esi + 0x420]
mov ecx, eax
sar ecx, 0x18
and ecx, 0xff
movsx edx, byte [ecx + str.cw]
mov ecx, eax
sar ecx, 0x10
and ecx, 0xff
movzx ecx, byte [ecx + str.cw]
shl edx, 8
xor edx, ecx
mov ecx, eax
sar ecx, 8
and ecx, 0xff
movzx ecx, byte [ecx + str.cw]
shl edx, 8
and eax, 0xff
movzx eax, byte [eax + str.cw]
xor edx, ecx
shl edx, 8
xor edx, eax
xor dword [esi + 0x424], edx
lea eax, [esi + 0x428]
mov ecx, 3
mov edx, dword [eax - 4]
xor dword [eax], edx
add eax, 4
sub ecx, 1
jne 0x40e215
mov dword [esp + 0x18], 0
test edi, edi
jle 0x40e27a
lea ecx, [esi + 0x414]
cmp ebx, dword [esp + 0x10]
jge 0x40e284
mov eax, ebx
cdq
idiv ebp
mov ebp, dword [ecx]
add ecx, 4
lea ebx, [edx + eax*8]
mov dword [esi + ebx*4 + 8], ebp
mov ebx, dword [esi + 0x3d0]
mov ebp, dword [esp + 0xc]
sub ebx, eax
lea eax, [edx + ebx*8]
mov edx, dword [ecx - 4]
mov ebx, dword [esp + 0x2c]
mov dword [esi + eax*4 + 0x1e8], edx
mov eax, dword [esp + 0x18]
inc eax
inc ebx
cmp eax, edi
mov dword [esp + 0x18], eax
mov dword [esp + 0x2c], ebx
jl 0x40e234
cmp ebx, dword [esp + 0x10]
jl 0x40e100
mov eax, 1
cmp dword [esi + 0x3d0], eax
mov dword [esp + 0x2c], eax
jle 0x40e31b
lea ecx, [esi + 0x208]
mov dword [esp + 0x18], ecx
test ebp, ebp
jle 0x40e2ff
mov edx, ebp
lea esp, [esp]
mov eax, dword [ecx]
mov edi, eax
sar edi, 0x18
and edi, 0xff
mov edi, dword [edi*4 + 0x4a6318]
mov ebx, eax
sar ebx, 0x10
and ebx, 0xff
xor edi, dword [ebx*4 + 0x4a6718]
mov ebx, eax
sar ebx, 8
and ebx, 0xff
xor edi, dword [ebx*4 + 0x4a6b18]
and eax, 0xff
xor edi, dword [eax*4 + 0x4a6f18]
add ecx, 4
sub edx, 1
mov dword [ecx - 4], edi
jne 0x40e2b0
mov eax, dword [esp + 0x2c]
mov ecx, dword [esp + 0x18]
inc eax
add ecx, 0x20
cmp eax, dword [esi + 0x3d0]
mov dword [esp + 0x2c], eax
mov dword [esp + 0x18], ecx
jl 0x40e2a3
pop edi
pop ebp
mov byte [esi + 4], 1
pop ebx
add esp, 0x1c
ret 4