Function at 0x431ed3
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 0x431f02
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x431f0c
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0043b9e1
test eax, eax
pop ecx
je 0x431f27
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00429d73
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004300b6
test eax, eax
pop ecx
je 0x431f42
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00429d73
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x431f5f
test ecx, 0x74000
jne 0x431f5b
cmp dword [ebp - 0x24], eax
je 0x431f5f
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, 0x80000000
je 0x431fb9
dec eax
je 0x431fa3
dec eax
je 0x431f9e
call fcn.00428bf2
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00428bdf
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00429e6f
add esp, 0x14
jmp 0x43256c
mov dword [ebp - 8], edx
jmp 0x431fbc
test cl, 8
je 0x431fb0
test ecx, 0x70000
jne 0x431f9e
mov dword [ebp - 8], 0x40000000
jmp 0x431fbc
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x431ffd
sub eax, ecx
je 0x431ff4
sub eax, ecx
je 0x431feb
sub eax, ecx
je 0x431fe2
sub eax, 0x40
jne 0x431f78
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x432000
mov dword [ebp - 0x10], 3
jmp 0x432000
mov dword [ebp - 0x10], 2
jmp 0x432000
mov dword [ebp - 0x10], 1
jmp 0x432000
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 0x432053
je 0x43204a
cmp eax, ebx
je 0x43204a
cmp eax, edi
je 0x432041
cmp eax, 0x200
je 0x4320c6
cmp eax, 0x300
jne 0x431f78
mov dword [ebp - 0x14], 2
jmp 0x432070
mov dword [ebp - 0x14], 4
jmp 0x432070
mov dword [ebp - 0x14], 3
jmp 0x432070
cmp eax, 0x500
je 0x432069
cmp eax, 0x600
je 0x4320c6
cmp eax, edx
jne 0x431f78
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x432094
mov ecx, dword [0x452fb0]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x432094
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x4320b0
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x4320b0
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4320b9
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4320cf
or dword [ebp - 0xc], 0x8000000
jmp 0x4320da
mov dword [ebp - 0x14], 5
jmp 0x432070
test al, 0x10
je 0x4320da
or dword [ebp - 0xc], 0x10000000
call fcn.004332e0
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x432100
call fcn.00428bf2
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00428bdf
mov dword [eax], 0x18
jmp 0x43218e
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 0x43219a
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x432166
test byte [ebp + 0x10], 1
je 0x432166
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 0x43219a
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x455680]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00428c05
pop ecx
call fcn.00428bdf
mov eax, dword [eax]
jmp 0x432628
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4321eb
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x455680]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00428c05
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x43218e
call fcn.00428bdf
mov dword [eax], 0xd
jmp 0x43218e
cmp eax, 2
jne 0x4321f6
or byte [ebp - 1], 0x40
jmp 0x4321ff
cmp eax, 3
jne 0x4321ff
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004330af
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x455680]
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 + 0x455680]
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 0x4322d5
test cl, 0x80
je 0x4323a5
test byte [ebp + 0x10], 2
je 0x4322d5
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00429ae4
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x432293
call fcn.00428bf2
cmp dword [eax], 0x83
je 0x4322d5
push dword [esi]
call fcn.00429983
jmp 0x43218d
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.00428c23
add esp, 0xc
test eax, eax
jne 0x4322c5
cmp word [ebp - 0x2c], 0x1a
jne 0x4322c5
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0043b771
add esp, 0xc
cmp eax, edi
je 0x432287
push ebx
push ebx
push dword [esi]
call fcn.00429ae4
add esp, 0xc
cmp eax, edi
je 0x432287
test byte [ebp - 1], 0x80
je 0x4323a5
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4322fd
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4322fa
or dword [ebp + 0x10], edi
jmp 0x4322fd
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x43234a
cmp eax, 0x10000
je 0x432336
cmp eax, 0x14000
je 0x432336
cmp eax, 0x20000
je 0x432344
cmp eax, 0x24000
je 0x432344
cmp eax, 0x40000
je 0x432330
cmp eax, 0x44000
jne 0x43234d
mov byte [ebp - 2], 1
jmp 0x43234d
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x43234d
mov byte [ebp - 2], 2
jmp 0x43234d
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x4323a5
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x4323a5
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4324ff
cmp eax, 0x80000000
je 0x4324c6
cmp eax, ecx
jne 0x4323a5
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4323a5
cmp eax, 2
jbe 0x4325a7
cmp eax, 4
jbe 0x432498
cmp eax, 5
je 0x4325a7
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x455680]
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 + 0x455680]
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 0x432417
test byte [ebp + 0x10], 8
je 0x432417
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x455680]
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 0x432626
test byte [ebp + 0x10], 1
je 0x432626
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 0x43260f
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00428c05
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x455680]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0043312c
pop ecx
jmp 0x43218d
push 2
push ebx
push ebx
push dword [esi]
call fcn.00432cd3
add esp, 0x10
or eax, edx
je 0x4325a7
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00432cd3
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x432287
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00428c23
add esp, 0xc
cmp eax, 0xffffffff
je 0x432287
cmp eax, 2
je 0x43254b
cmp eax, 3
jne 0x432599
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x43254b
mov byte [ebp - 2], 1
jmp 0x4323a5
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x4323a5
cmp eax, 2
jbe 0x4325a7
cmp eax, 4
ja 0x43239c
push 2
push ebx
push ebx
push dword [esi]
call fcn.00432cd3
add esp, 0x10
or eax, edx
je 0x4325a7
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00432cd3
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x4323a5
jmp 0x432287
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x432573
push dword [esi]
call fcn.00429983
pop ecx
call fcn.00428bdf
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x432628
cmp eax, 0xfeff
jne 0x432599
push ebx
push 2
push dword [esi]
call fcn.00429ae4
add esp, 0xc
cmp eax, 0xffffffff
je 0x432287
mov byte [ebp - 2], 2
jmp 0x4323a5
push ebx
push ebx
push dword [esi]
call fcn.00429ae4
add esp, 0xc
jmp 0x43253d
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4325c7
dec eax
jne 0x4323a5
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4325d5
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.004298a7
add esp, 0xc
cmp eax, 0xffffffff
je 0x4325fb
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4325d5
jmp 0x4323a5
push dword [esi]
call fcn.00429983
pop ecx
call fcn.00428bdf
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x432628
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x455680]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret