Function at 0x509e27
Capabilities:
Encrypt data using speck

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x38
push ebx
xor ebx, ebx
test byte [ebp + 0x10], 0x80
push esi
push edi
mov esi, eax
mov dword [ebp - 0x24], ebx
mov dword [ebp - 0x28], ebx
mov byte [ebp - 2], bl
mov dword [ebp - 0x38], 0xc
mov dword [ebp - 0x34], ebx
je 0x509e56
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x509e60
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004f8521
test eax, eax
pop ecx
je 0x509e7b
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004efdae
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004f5d03
test eax, eax
pop ecx
je 0x509e96
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004efdae
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x509eb3
test ecx, 0x74000
jne 0x509eaf
cmp dword [ebp - 0x24], eax
je 0x509eb3
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x509f0d
dec eax
je 0x509ef7
dec eax
je 0x509ef2
call fcn.004f7403
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004f73f0
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004efeaa
add esp, 0x14
jmp 0x50a4c0
mov dword [ebp - 8], edx
jmp 0x509f10
test cl, 8
je 0x509f04
test ecx, 0x70000
jne 0x509ef2
mov dword [ebp - 8], 0x40000000
jmp 0x509f10
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x509f51
sub eax, ecx
je 0x509f48
sub eax, ecx
je 0x509f3f
sub eax, ecx
je 0x509f36
sub eax, 0x40
jne 0x509ecc
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x509f54
mov dword [ebp - 0x10], 3
jmp 0x509f54
mov dword [ebp - 0x10], 2
jmp 0x509f54
mov dword [ebp - 0x10], 1
jmp 0x509f54
mov dword [ebp - 0x10], ebx
mov eax, dword [ebp + 0x10]
mov edx, 0x700
and eax, edx
mov ecx, 0x400
cmp eax, ecx
mov edi, 0x100
jg 0x509fa7
je 0x509f9e
cmp eax, ebx
je 0x509f9e
cmp eax, edi
je 0x509f95
cmp eax, 0x200
je 0x50a01a
cmp eax, 0x300
jne 0x509ecc
mov dword [ebp - 0x14], 2
jmp 0x509fc4
mov dword [ebp - 0x14], 4
jmp 0x509fc4
mov dword [ebp - 0x14], 3
jmp 0x509fc4
cmp eax, 0x500
je 0x509fbd
cmp eax, 0x600
je 0x50a01a
cmp eax, edx
jne 0x509ecc
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x509fe8
mov ecx, dword [0x55fbd4]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x509fe8
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x50a004
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x50a004
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x50a00d
or dword [ebp - 0xc], edi
test al, 0x20
je 0x50a023
or dword [ebp - 0xc], 0x8000000
jmp 0x50a02e
mov dword [ebp - 0x14], 5
jmp 0x509fc4
test al, 0x10
je 0x50a02e
or dword [ebp - 0xc], 0x10000000
call fcn.004f31ab
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x50a054
call fcn.004f7403
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004f73f0
mov dword [eax], 0x18
jmp 0x50a0e2
mov eax, dword [ebp + 8]
mov edi, dword [sym.imp.KERNEL32.dll_CreateFileW]
push ebx
push dword [ebp - 0xc]
mov dword [eax], 1
push dword [ebp - 0x14]
lea eax, [ebp - 0x38]
push eax
push dword [ebp - 0x10]
push dword [ebp - 8]
push dword [ebp + 0xc]
call edi
cmp eax, 0xffffffff
mov dword [ebp - 0x1c], eax
jne 0x50a0ee
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x50a0ba
test byte [ebp + 0x10], 1
je 0x50a0ba
and dword [ebp - 8], 0x7fffffff
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
push dword [ebp - 0x14]
push eax
push dword [ebp - 0x10]
push dword [ebp - 8]
push dword [ebp + 0xc]
call edi
cmp eax, 0xffffffff
mov dword [ebp - 0x1c], eax
jne 0x50a0ee
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x560fc0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004f7416
pop ecx
call fcn.004f73f0
mov eax, dword [eax]
jmp 0x50a57c
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x50a13f
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x560fc0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004f7416
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x50a0e2
call fcn.004f73f0
mov dword [eax], 0xd
jmp 0x50a0e2
cmp eax, 2
jne 0x50a14a
or byte [ebp - 1], 0x40
jmp 0x50a153
cmp eax, 3
jne 0x50a153
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004f2f7a
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x560fc0]
pop ecx
pop ecx
mov cl, byte [ebp - 1]
or cl, 1
mov byte [edx + eax + 4], cl
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x560fc0]
lea eax, [edx + eax + 0x24]
and byte [eax], 0x80
mov byte [ebp - 3], cl
and byte [ebp - 3], 0x48
mov byte [ebp - 1], cl
jne 0x50a229
test cl, 0x80
je 0x50a2f9
test byte [ebp + 0x10], 2
je 0x50a229
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004fd8ac
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x50a1e7
call fcn.004f7403
cmp dword [eax], 0x83
je 0x50a229
push dword [esi]
call fcn.004fd48b
jmp 0x50a0e1
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.004fe875
add esp, 0xc
test eax, eax
jne 0x50a219
cmp word [ebp - 0x2c], 0x1a
jne 0x50a219
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.004f2dc6
add esp, 0xc
cmp eax, edi
je 0x50a1db
push ebx
push ebx
push dword [esi]
call fcn.004fd8ac
add esp, 0xc
cmp eax, edi
je 0x50a1db
test byte [ebp - 1], 0x80
je 0x50a2f9
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x50a251
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x50a24e
or dword [ebp + 0x10], edi
jmp 0x50a251
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x50a29e
cmp eax, 0x10000
je 0x50a28a
cmp eax, 0x14000
je 0x50a28a
cmp eax, 0x20000
je 0x50a298
cmp eax, 0x24000
je 0x50a298
cmp eax, 0x40000
je 0x50a284
cmp eax, 0x44000
jne 0x50a2a1
mov byte [ebp - 2], 1
jmp 0x50a2a1
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x50a2a1
mov byte [ebp - 2], 2
jmp 0x50a2a1
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x50a2f9
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x50a2f9
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x50a453
cmp eax, 0x80000000
je 0x50a41a
cmp eax, ecx
jne 0x50a2f9
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x50a2f9
cmp eax, 2
jbe 0x50a4fb
cmp eax, 4
jbe 0x50a3ec
cmp eax, 5
je 0x50a4fb
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x560fc0]
lea eax, [ecx + eax + 0x24]
mov cl, byte [eax]
xor cl, byte [ebp - 2]
and cl, 0x7f
xor byte [eax], cl
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x560fc0]
lea eax, [ecx + eax + 0x24]
mov ecx, dword [ebp + 0x10]
mov dl, byte [eax]
shr ecx, 0x10
shl cl, 7
and dl, 0x7f
or cl, dl
cmp byte [ebp - 3], bl
mov byte [eax], cl
jne 0x50a36b
test byte [ebp + 0x10], 8
je 0x50a36b
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x560fc0]
lea eax, [ecx + eax + 4]
or byte [eax], 0x20
mov edi, dword [ebp - 8]
mov eax, 0xc0000000
mov ecx, edi
and ecx, eax
cmp ecx, eax
jne 0x50a57a
test byte [ebp + 0x10], 1
je 0x50a57a
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
push 3
push eax
push dword [ebp - 0x10]
and edi, 0x7fffffff
push edi
push dword [ebp + 0xc]
call dword [sym.imp.KERNEL32.dll_CreateFileW]
cmp eax, 0xffffffff
jne 0x50a563
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004f7416
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x560fc0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.004f2ff7
pop ecx
jmp 0x50a0e1
push 2
push ebx
push ebx
push dword [esi]
call fcn.00503cc3
add esp, 0x10
or eax, edx
je 0x50a4fb
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00503cc3
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x50a1db
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004fe875
add esp, 0xc
cmp eax, 0xffffffff
je 0x50a1db
cmp eax, 2
je 0x50a49f
cmp eax, 3
jne 0x50a4ed
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x50a49f
mov byte [ebp - 2], 1
jmp 0x50a2f9
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x50a2f9
cmp eax, 2
jbe 0x50a4fb
cmp eax, 4
ja 0x50a2f0
push 2
push ebx
push ebx
push dword [esi]
call fcn.00503cc3
add esp, 0x10
or eax, edx
je 0x50a4fb
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00503cc3
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x50a2f9
jmp 0x50a1db
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x50a4c7
push dword [esi]
call fcn.004fd48b
pop ecx
call fcn.004f73f0
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x50a57c
cmp eax, 0xfeff
jne 0x50a4ed
push ebx
push 2
push dword [esi]
call fcn.004fd8ac
add esp, 0xc
cmp eax, 0xffffffff
je 0x50a1db
mov byte [ebp - 2], 2
jmp 0x50a2f9
push ebx
push ebx
push dword [esi]
call fcn.004fd8ac
add esp, 0xc
jmp 0x50a491
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x50a51b
dec eax
jne 0x50a2f9
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x50a529
mov dword [ebp - 0x18], 0xbfbbef
mov dword [ebp - 0x14], 3
mov eax, dword [ebp - 0x14]
sub eax, edi
push eax
lea eax, [ebp + edi - 0x18]
push eax
push dword [esi]
call fcn.00503ac2
add esp, 0xc
cmp eax, 0xffffffff
je 0x50a54f
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x50a529
jmp 0x50a2f9
push dword [esi]
call fcn.004fd48b
pop ecx
call fcn.004f73f0
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x50a57c
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x560fc0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret