Function at 0x43f390
Capabilities:
Encode data using xor

Disassembly:
push 0xffffffffffffffff
push 0x4d8d70
mov eax, dword fs:[0]
push eax
mov eax, 0x58
call fcn.00468d20
mov eax, dword [0x5808f0]
xor eax, esp
mov dword [esp + 0x54], eax
push ebx
push ebp
push esi
push edi
mov eax, dword [0x5808f0]
xor eax, esp
push eax
lea eax, [esp + 0x6c]
mov dword fs:[0], eax
xor eax, eax
mov ebp, ecx
xor ebx, ebx
lea ecx, [esp + 0x34]
mov byte [esp + 0x58], bl
mov dword [esp + 0x59], eax
mov dword [esp + 0x5d], eax
mov dword [esp + 0x61], eax
mov word [esp + 0x65], ax
mov byte [esp + 0x67], al
call fcn.00424cc0
mov edi, 7
xor eax, eax
mov dword [esp + 0x74], ebx
mov dword [esp + 0x30], edi
mov dword [esp + 0x2c], ebx
mov word [esp + 0x1c], ax
lea ecx, [esp + 0x14]
push ecx
mov byte [esp + 0x78], 1
call fcn.0041ae00
mov ecx, dword [ebp + 0x54]
lea edx, [ecx + ecx + 6]
add esp, 4
cmp eax, edx
mov eax, dword [esp + 0x14]
je 0x43f45a
push eax
call fcn.004690f0
push str.Wrong_pass_file_size_n
call fcn.0041a700
add esp, 8
cmp dword [esp + 0x30], 8
jb 0x43f451
mov ecx, dword [esp + 0x1c]
push ecx
call fcn.004699ce
add esp, 4
mov dword [esp + 0x30], edi
jmp 0x43f5af
push ecx
lea esi, [ebp + 0x24]
add eax, 6
push esi
push eax
call fcn.00403440
mov ecx, dword [esp + 0x20]
push ecx
call fcn.004690f0
add esp, 0x10
cmp dword [0x584064], ebx
je 0x43f489
mov ecx, 0x4ee2e0
mov eax, 0x4e4710
jmp 0x43f493
mov ecx, 0x4ee2a0
mov eax, str.Choose_encrypted_file
lea edx, [esp + 0x18]
push edx
push ecx
push eax
mov ecx, ebp
call fcn.0042bd50
test al, al
jne 0x43f4c9
cmp dword [esp + 0x30], 8
jb 0x43f4b9
mov eax, dword [esp + 0x1c]
push eax
call fcn.004699ce
add esp, 4
xor ecx, ecx
mov dword [esp + 0x30], edi
mov word [esp + 0x1c], cx
jmp 0x43f5b6
mov eax, dword [esp + 0x1c]
mov edi, 8
cmp dword [esp + 0x30], edi
jae 0x43f4dc
lea eax, [esp + 0x1c]
mov edx, dword [ebp]
push eax
mov eax, dword [edx + 0x18]
mov ecx, ebp
call eax
test al, al
jne 0x43f506
push str.File_isnt_crypted_n
call fcn.0041a700
add esp, 4
lea ecx, [esp + 0x18]
call fcn.0041b5b0
jmp 0x43f5ba
mov eax, dword [esp + 0x1c]
cmp dword [esp + 0x30], edi
jae 0x43f514
lea eax, [esp + 0x1c]
push ebx
push eax
lea ecx, [esp + 0x3c]
call fcn.00424d40
lea ecx, [esp + 0x34]
call fcn.00424740
test al, al
jne 0x43f533
push str.Cant_open_test_file_n
jmp 0x43f4f0
lea ecx, [esp + 0x34]
call fcn.00424be0
cmp edx, ebx
jg 0x43f54e
jl 0x43f547
cmp eax, 0x17
jae 0x43f54e
push str.Test_file_is_too_small_n
jmp 0x43f4f0
push ebx
push 0x10
lea ecx, [esp + 0x60]
push ecx
push ebx
push 7
lea ecx, [esp + 0x48]
call fcn.00424750
lea eax, [esp + 0x58]
mov edi, 0x10
jmp 0x43f570
mov cl, byte [esi]
mov dl, byte [eax]
xor dl, cl
add dl, cl
mov byte [eax], dl
inc esi
inc eax
sub edi, 1
jne 0x43f570
lea eax, [esp + 0x58]
push 0x10
push eax
call fcn.0041a7a0
add esp, 8
cmp dword [esp + 0x30], 8
mov byte [ebp + 0x20], al
jb 0x43f5a7
mov ecx, dword [esp + 0x1c]
push ecx
call fcn.004699ce
add esp, 4
mov dword [esp + 0x30], 7
xor edx, edx
mov word [esp + 0x1c], dx
mov dword [esp + 0x2c], ebx
lea ecx, [esp + 0x34]
mov dword [esp + 0x74], 0xffffffff
call fcn.00424ce0
mov ecx, dword [esp + 0x6c]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebp
pop ebx
mov ecx, dword [esp + 0x54]
xor ecx, esp
call fcn.004690b5
add esp, 0x64
ret