Function at 0x4156a6
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 0x4156d5
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x4156df
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0041ce7f
test eax, eax
pop ecx
je 0x4156fa
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0041772c
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004198f5
test eax, eax
pop ecx
je 0x415715
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0041772c
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x415732
test ecx, 0x74000
jne 0x41572e
cmp dword [ebp - 0x24], eax
je 0x415732
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, 0x80000000
je 0x41578c
dec eax
je 0x415776
dec eax
je 0x415771
call fcn.004191ed
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004191da
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00417828
add esp, 0x14
jmp 0x415d3f
mov dword [ebp - 8], edx
jmp 0x41578f
test cl, 8
je 0x415783
test ecx, 0x70000
jne 0x415771
mov dword [ebp - 8], 0x40000000
jmp 0x41578f
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4157d0
sub eax, ecx
je 0x4157c7
sub eax, ecx
je 0x4157be
sub eax, ecx
je 0x4157b5
sub eax, 0x40
jne 0x41574b
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4157d3
mov dword [ebp - 0x10], 3
jmp 0x4157d3
mov dword [ebp - 0x10], 2
jmp 0x4157d3
mov dword [ebp - 0x10], 1
jmp 0x4157d3
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 0x415826
je 0x41581d
cmp eax, ebx
je 0x41581d
cmp eax, edi
je 0x415814
cmp eax, 0x200
je 0x415899
cmp eax, 0x300
jne 0x41574b
mov dword [ebp - 0x14], 2
jmp 0x415843
mov dword [ebp - 0x14], 4
jmp 0x415843
mov dword [ebp - 0x14], 3
jmp 0x415843
cmp eax, 0x500
je 0x41583c
cmp eax, 0x600
je 0x415899
cmp eax, edx
jne 0x41574b
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x415867
mov ecx, dword [0x43a988]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x415867
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x415883
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x415883
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x41588c
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4158a2
or dword [ebp - 0xc], 0x8000000
jmp 0x4158ad
mov dword [ebp - 0x14], 5
jmp 0x415843
test al, 0x10
je 0x4158ad
or dword [ebp - 0xc], 0x10000000
call fcn.0041c15f
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4158d3
call fcn.004191ed
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004191da
mov dword [eax], 0x18
jmp 0x415961
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 0x41596d
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x415939
test byte [ebp + 0x10], 1
je 0x415939
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 0x41596d
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x43c580]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00419200
pop ecx
call fcn.004191da
mov eax, dword [eax]
jmp 0x415dfb
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4159be
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x43c580]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00419200
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x415961
call fcn.004191da
mov dword [eax], 0xd
jmp 0x415961
cmp eax, 2
jne 0x4159c9
or byte [ebp - 1], 0x40
jmp 0x4159d2
cmp eax, 3
jne 0x4159d2
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0041bf2e
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x43c580]
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 + 0x43c580]
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 0x415aa8
test cl, 0x80
je 0x415b78
test byte [ebp + 0x10], 2
je 0x415aa8
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00414d39
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x415a66
call fcn.004191ed
cmp dword [eax], 0x83
je 0x415aa8
push dword [esi]
call fcn.00414e87
jmp 0x415960
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.00414fe8
add esp, 0xc
test eax, eax
jne 0x415a98
cmp word [ebp - 0x2c], 0x1a
jne 0x415a98
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0041cc0f
add esp, 0xc
cmp eax, edi
je 0x415a5a
push ebx
push ebx
push dword [esi]
call fcn.00414d39
add esp, 0xc
cmp eax, edi
je 0x415a5a
test byte [ebp - 1], 0x80
je 0x415b78
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x415ad0
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x415acd
or dword [ebp + 0x10], edi
jmp 0x415ad0
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x415b1d
cmp eax, 0x10000
je 0x415b09
cmp eax, 0x14000
je 0x415b09
cmp eax, 0x20000
je 0x415b17
cmp eax, 0x24000
je 0x415b17
cmp eax, 0x40000
je 0x415b03
cmp eax, 0x44000
jne 0x415b20
mov byte [ebp - 2], 1
jmp 0x415b20
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x415b20
mov byte [ebp - 2], 2
jmp 0x415b20
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x415b78
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x415b78
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x415cd2
cmp eax, 0x80000000
je 0x415c99
cmp eax, ecx
jne 0x415b78
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x415b78
cmp eax, 2
jbe 0x415d7a
cmp eax, 4
jbe 0x415c6b
cmp eax, 5
je 0x415d7a
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x43c580]
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 + 0x43c580]
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 0x415bea
test byte [ebp + 0x10], 8
je 0x415bea
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x43c580]
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 0x415df9
test byte [ebp + 0x10], 1
je 0x415df9
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 0x415de2
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00419200
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x43c580]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0041bfab
pop ecx
jmp 0x415960
push 2
push ebx
push ebx
push dword [esi]
call fcn.0041c2fe
add esp, 0x10
or eax, edx
je 0x415d7a
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0041c2fe
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x415a5a
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00414fe8
add esp, 0xc
cmp eax, 0xffffffff
je 0x415a5a
cmp eax, 2
je 0x415d1e
cmp eax, 3
jne 0x415d6c
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x415d1e
mov byte [ebp - 2], 1
jmp 0x415b78
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x415b78
cmp eax, 2
jbe 0x415d7a
cmp eax, 4
ja 0x415b6f
push 2
push ebx
push ebx
push dword [esi]
call fcn.0041c2fe
add esp, 0x10
or eax, edx
je 0x415d7a
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0041c2fe
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x415b78
jmp 0x415a5a
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x415d46
push dword [esi]
call fcn.00414e87
pop ecx
call fcn.004191da
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x415dfb
cmp eax, 0xfeff
jne 0x415d6c
push ebx
push 2
push dword [esi]
call fcn.00414d39
add esp, 0xc
cmp eax, 0xffffffff
je 0x415a5a
mov byte [ebp - 2], 2
jmp 0x415b78
push ebx
push ebx
push dword [esi]
call fcn.00414d39
add esp, 0xc
jmp 0x415d10
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x415d9a
dec eax
jne 0x415b78
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x415da8
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.0041cb33
add esp, 0xc
cmp eax, 0xffffffff
je 0x415dce
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x415da8
jmp 0x415b78
push dword [esi]
call fcn.00414e87
pop ecx
call fcn.004191da
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x415dfb
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x43c580]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret