Function at 0x53e0bc
Capabilities:
Encrypt data using speck

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x34
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 - 0x34], 0xc
mov dword [ebp - 0x30], ebx
je 0x53e0eb
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x53e0f5
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00541466
test eax, eax
pop ecx
je 0x53e110
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0051e1f4
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0052680b
test eax, eax
pop ecx
je 0x53e12b
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0051e1f4
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x53e148
test ecx, 0x74000
jne 0x53e144
cmp dword [ebp - 0x24], eax
je 0x53e148
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, bind
je 0x53e1a2
dec eax
je 0x53e18c
dec eax
je 0x53e187
call fcn.005282b1
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0052829e
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0051e2f0
add esp, 0x14
jmp 0x53e754
mov dword [ebp - 8], edx
jmp 0x53e1a5
test cl, 8
je 0x53e199
test ecx, 0x70000
jne 0x53e187
mov dword [ebp - 8], 0x40000000
jmp 0x53e1a5
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x53e1e6
sub eax, ecx
je 0x53e1dd
sub eax, ecx
je 0x53e1d4
sub eax, ecx
je 0x53e1cb
sub eax, 0x40
jne 0x53e161
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x53e1e9
mov dword [ebp - 0x10], 3
jmp 0x53e1e9
mov dword [ebp - 0x10], 2
jmp 0x53e1e9
mov dword [ebp - 0x10], 1
jmp 0x53e1e9
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 0x53e23c
je 0x53e233
cmp eax, ebx
je 0x53e233
cmp eax, edi
je 0x53e22a
cmp eax, 0x200
je 0x53e2af
cmp eax, 0x300
jne 0x53e161
mov dword [ebp - 0x14], 2
jmp 0x53e259
mov dword [ebp - 0x14], 4
jmp 0x53e259
mov dword [ebp - 0x14], 3
jmp 0x53e259
cmp eax, 0x500
je 0x53e252
cmp eax, 0x600
je 0x53e2af
cmp eax, edx
jne 0x53e161
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x53e27d
mov ecx, dword [0x75e24c]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x53e27d
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x53e299
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x53e299
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x53e2a2
or dword [ebp - 0xc], edi
test al, 0x20
je 0x53e2b8
or dword [ebp - 0xc], 0x8000000
jmp 0x53e2c3
mov dword [ebp - 0x14], 5
jmp 0x53e259
test al, 0x10
je 0x53e2c3
or dword [ebp - 0xc], 0x10000000
call fcn.0053df1d
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x53e2e9
call fcn.005282b1
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0052829e
mov dword [eax], 0x18
jmp 0x53e377
mov eax, dword [ebp + 8]
mov edi, dword [sym.imp.KERNEL32.dll_CreateFileA]
push ebx
push dword [ebp - 0xc]
mov dword [eax], 1
push dword [ebp - 0x14]
lea eax, [ebp - 0x34]
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 0x53e383
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x53e34f
test byte [ebp + 0x10], 1
je 0x53e34f
and dword [ebp - 8], 0x7fffffff
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x34]
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 0x53e383
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x76ade0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.005282c4
pop ecx
call fcn.0052829e
mov eax, dword [eax]
jmp 0x53e810
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x53e3d4
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x76ade0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.005282c4
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x53e377
call fcn.0052829e
mov dword [eax], 0xd
jmp 0x53e377
cmp eax, 2
jne 0x53e3df
or byte [ebp - 1], 0x40
jmp 0x53e3e8
cmp eax, 3
jne 0x53e3e8
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0053dcec
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x76ade0]
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 + 0x76ade0]
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 0x53e4bd
test cl, 0x80
je 0x53e58d
test byte [ebp + 0x10], 2
je 0x53e4bd
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00530b86
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x53e47c
call fcn.005282b1
cmp dword [eax], 0x83
je 0x53e4bd
push dword [esi]
call fcn.00530529
jmp 0x53e376
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0053d56c
add esp, 0xc
test eax, eax
jne 0x53e4ad
cmp byte [ebp - 4], 0x1a
jne 0x53e4ad
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.005411f6
add esp, 0xc
cmp eax, edi
je 0x53e470
push ebx
push ebx
push dword [esi]
call fcn.00530b86
add esp, 0xc
cmp eax, edi
je 0x53e470
test byte [ebp - 1], 0x80
je 0x53e58d
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x53e4e5
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x53e4e2
or dword [ebp + 0x10], edi
jmp 0x53e4e5
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x53e532
cmp eax, 0x10000
je 0x53e51e
cmp eax, 0x14000
je 0x53e51e
cmp eax, 0x20000
je 0x53e52c
cmp eax, 0x24000
je 0x53e52c
cmp eax, 0x40000
je 0x53e518
cmp eax, 0x44000
jne 0x53e535
mov byte [ebp - 2], 1
jmp 0x53e535
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x53e535
mov byte [ebp - 2], 2
jmp 0x53e535
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x53e58d
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x53e58d
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x53e6e7
cmp eax, 0x80000000
je 0x53e6ae
cmp eax, ecx
jne 0x53e58d
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x53e58d
cmp eax, 2
jbe 0x53e78f
cmp eax, 4
jbe 0x53e680
cmp eax, 5
je 0x53e78f
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x76ade0]
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 + 0x76ade0]
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 0x53e5ff
test byte [ebp + 0x10], 8
je 0x53e5ff
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x76ade0]
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 0x53e80e
test byte [ebp + 0x10], 1
je 0x53e80e
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x34]
push 3
push eax
push dword [ebp - 0x10]
and edi, 0x7fffffff
push edi
push dword [ebp + 0xc]
call dword [sym.imp.KERNEL32.dll_CreateFileA]
cmp eax, 0xffffffff
jne 0x53e7f7
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.005282c4
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x76ade0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0053dd69
pop ecx
jmp 0x53e376
push 2
push ebx
push ebx
push dword [esi]
call fcn.0053c978
add esp, 0x10
or eax, edx
je 0x53e78f
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0053c978
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x53e470
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0053d56c
add esp, 0xc
cmp eax, 0xffffffff
je 0x53e470
cmp eax, 2
je 0x53e733
cmp eax, 3
jne 0x53e781
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x53e733
mov byte [ebp - 2], 1
jmp 0x53e58d
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x53e58d
cmp eax, 2
jbe 0x53e78f
cmp eax, 4
ja 0x53e584
push 2
push ebx
push ebx
push dword [esi]
call fcn.0053c978
add esp, 0x10
or eax, edx
je 0x53e78f
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0053c978
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x53e58d
jmp 0x53e470
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x53e75b
push dword [esi]
call fcn.00530529
pop ecx
call fcn.0052829e
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x53e810
cmp eax, 0xfeff
jne 0x53e781
push ebx
push 2
push dword [esi]
call fcn.00530b86
add esp, 0xc
cmp eax, 0xffffffff
je 0x53e470
mov byte [ebp - 2], 2
jmp 0x53e58d
push ebx
push ebx
push dword [esi]
call fcn.00530b86
add esp, 0xc
jmp 0x53e725
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x53e7af
dec eax
jne 0x53e58d
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x53e7bd
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.0053033f
add esp, 0xc
cmp eax, 0xffffffff
je 0x53e7e3
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x53e7bd
jmp 0x53e58d
push dword [esi]
call fcn.00530529
pop ecx
call fcn.0052829e
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x53e810
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x76ade0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret