Function at 0x43ba7b
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 0x43baaa
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x43bab4
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0043e1e1
test eax, eax
pop ecx
je 0x43bacf
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004232a2
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00427dcd
test eax, eax
pop ecx
je 0x43baea
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004232a2
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x43bb07
test ecx, 0x74000
jne 0x43bb03
cmp dword [ebp - 0x24], eax
je 0x43bb07
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, 0x80000000
je 0x43bb61
dec eax
je 0x43bb4b
dec eax
je 0x43bb46
call fcn.0042808e
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0042807b
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0042339e
add esp, 0x14
jmp 0x43c114
mov dword [ebp - 8], edx
jmp 0x43bb64
test cl, 8
je 0x43bb58
test ecx, 0x70000
jne 0x43bb46
mov dword [ebp - 8], 0x40000000
jmp 0x43bb64
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x43bba5
sub eax, ecx
je 0x43bb9c
sub eax, ecx
je 0x43bb93
sub eax, ecx
je 0x43bb8a
sub eax, 0x40
jne 0x43bb20
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x43bba8
mov dword [ebp - 0x10], 3
jmp 0x43bba8
mov dword [ebp - 0x10], 2
jmp 0x43bba8
mov dword [ebp - 0x10], 1
jmp 0x43bba8
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 0x43bbfb
je 0x43bbf2
cmp eax, ebx
je 0x43bbf2
cmp eax, edi
je 0x43bbe9
cmp eax, 0x200
je 0x43bc6e
cmp eax, 0x300
jne 0x43bb20
mov dword [ebp - 0x14], 2
jmp 0x43bc18
mov dword [ebp - 0x14], 4
jmp 0x43bc18
mov dword [ebp - 0x14], 3
jmp 0x43bc18
cmp eax, 0x500
je 0x43bc11
cmp eax, 0x600
je 0x43bc6e
cmp eax, edx
jne 0x43bb20
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x43bc3c
mov ecx, dword [0x451c84]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x43bc3c
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x43bc58
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x43bc58
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x43bc61
or dword [ebp - 0xc], edi
test al, 0x20
je 0x43bc77
or dword [ebp - 0xc], 0x8000000
jmp 0x43bc82
mov dword [ebp - 0x14], 5
jmp 0x43bc18
test al, 0x10
je 0x43bc82
or dword [ebp - 0xc], 0x10000000
call fcn.0043a94a
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x43bca8
call fcn.0042808e
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0042807b
mov dword [eax], 0x18
jmp 0x43bd36
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 0x43bd42
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x43bd0e
test byte [ebp + 0x10], 1
je 0x43bd0e
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 0x43bd42
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x452900]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004280a1
pop ecx
call fcn.0042807b
mov eax, dword [eax]
jmp 0x43c1d0
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x43bd93
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x452900]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.004280a1
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x43bd36
call fcn.0042807b
mov dword [eax], 0xd
jmp 0x43bd36
cmp eax, 2
jne 0x43bd9e
or byte [ebp - 1], 0x40
jmp 0x43bda7
cmp eax, 3
jne 0x43bda7
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0043a719
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x452900]
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 + 0x452900]
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 0x43be7d
test cl, 0x80
je 0x43bf4d
test byte [ebp + 0x10], 2
je 0x43be7d
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0042d519
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x43be3b
call fcn.0042808e
cmp dword [eax], 0x83
je 0x43be7d
push dword [esi]
call fcn.0042d8e7
jmp 0x43bd35
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.00439f99
add esp, 0xc
test eax, eax
jne 0x43be6d
cmp word [ebp - 0x2c], 0x1a
jne 0x43be6d
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0043df71
add esp, 0xc
cmp eax, edi
je 0x43be2f
push ebx
push ebx
push dword [esi]
call fcn.0042d519
add esp, 0xc
cmp eax, edi
je 0x43be2f
test byte [ebp - 1], 0x80
je 0x43bf4d
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x43bea5
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x43bea2
or dword [ebp + 0x10], edi
jmp 0x43bea5
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x43bef2
cmp eax, 0x10000
je 0x43bede
cmp eax, 0x14000
je 0x43bede
cmp eax, 0x20000
je 0x43beec
cmp eax, 0x24000
je 0x43beec
cmp eax, 0x40000
je 0x43bed8
cmp eax, 0x44000
jne 0x43bef5
mov byte [ebp - 2], 1
jmp 0x43bef5
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x43bef5
mov byte [ebp - 2], 2
jmp 0x43bef5
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x43bf4d
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x43bf4d
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x43c0a7
cmp eax, 0x80000000
je 0x43c06e
cmp eax, ecx
jne 0x43bf4d
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x43bf4d
cmp eax, 2
jbe 0x43c14f
cmp eax, 4
jbe 0x43c040
cmp eax, 5
je 0x43c14f
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x452900]
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 + 0x452900]
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 0x43bfbf
test byte [ebp + 0x10], 8
je 0x43bfbf
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x452900]
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 0x43c1ce
test byte [ebp + 0x10], 1
je 0x43c1ce
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 0x43c1b7
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004280a1
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x452900]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0043a796
pop ecx
jmp 0x43bd35
push 2
push ebx
push ebx
push dword [esi]
call fcn.00439d89
add esp, 0x10
or eax, edx
je 0x43c14f
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00439d89
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x43be2f
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00439f99
add esp, 0xc
cmp eax, 0xffffffff
je 0x43be2f
cmp eax, 2
je 0x43c0f3
cmp eax, 3
jne 0x43c141
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x43c0f3
mov byte [ebp - 2], 1
jmp 0x43bf4d
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x43bf4d
cmp eax, 2
jbe 0x43c14f
cmp eax, 4
ja 0x43bf44
push 2
push ebx
push ebx
push dword [esi]
call fcn.00439d89
add esp, 0x10
or eax, edx
je 0x43c14f
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00439d89
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x43bf4d
jmp 0x43be2f
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x43c11b
push dword [esi]
call fcn.0042d8e7
pop ecx
call fcn.0042807b
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x43c1d0
cmp eax, 0xfeff
jne 0x43c141
push ebx
push 2
push dword [esi]
call fcn.0042d519
add esp, 0xc
cmp eax, 0xffffffff
je 0x43be2f
mov byte [ebp - 2], 2
jmp 0x43bf4d
push ebx
push ebx
push dword [esi]
call fcn.0042d519
add esp, 0xc
jmp 0x43c0e5
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x43c16f
dec eax
jne 0x43bf4d
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x43c17d
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.0042d00a
add esp, 0xc
cmp eax, 0xffffffff
je 0x43c1a3
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x43c17d
jmp 0x43bf4d
push dword [esi]
call fcn.0042d8e7
pop ecx
call fcn.0042807b
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x43c1d0
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x452900]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret