Function at 0x454b87
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 0x454bb6
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x454bc0
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00456f01
test eax, eax
pop ecx
je 0x454bdb
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0043c1d0
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0043c7d8
test eax, eax
pop ecx
je 0x454bf6
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0043c1d0
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x454c13
test ecx, 0x74000
jne 0x454c0f
cmp dword [ebp - 0x24], eax
je 0x454c13
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x454c6d
dec eax
je 0x454c57
dec eax
je 0x454c52
call fcn.00441f54
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00441f41
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0043c2cc
add esp, 0x14
jmp 0x455220
mov dword [ebp - 8], edx
jmp 0x454c70
test cl, 8
je 0x454c64
test ecx, 0x70000
jne 0x454c52
mov dword [ebp - 8], 0x40000000
jmp 0x454c70
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x454cb1
sub eax, ecx
je 0x454ca8
sub eax, ecx
je 0x454c9f
sub eax, ecx
je 0x454c96
sub eax, 0x40
jne 0x454c2c
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x454cb4
mov dword [ebp - 0x10], 3
jmp 0x454cb4
mov dword [ebp - 0x10], 2
jmp 0x454cb4
mov dword [ebp - 0x10], 1
jmp 0x454cb4
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 0x454d07
je 0x454cfe
cmp eax, ebx
je 0x454cfe
cmp eax, edi
je 0x454cf5
cmp eax, 0x200
je 0x454d7a
cmp eax, 0x300
jne 0x454c2c
mov dword [ebp - 0x14], 2
jmp 0x454d24
mov dword [ebp - 0x14], 4
jmp 0x454d24
mov dword [ebp - 0x14], 3
jmp 0x454d24
cmp eax, 0x500
je 0x454d1d
cmp eax, 0x600
je 0x454d7a
cmp eax, edx
jne 0x454c2c
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x454d48
mov ecx, dword [0x49f3a0]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x454d48
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x454d64
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x454d64
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x454d6d
or dword [ebp - 0xc], edi
test al, 0x20
je 0x454d83
or dword [ebp - 0xc], 0x8000000
jmp 0x454d8e
mov dword [ebp - 0x14], 5
jmp 0x454d24
test al, 0x10
je 0x454d8e
or dword [ebp - 0xc], 0x10000000
call fcn.00444a30
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x454db4
call fcn.00441f54
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00441f41
mov dword [eax], 0x18
jmp 0x454e42
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 0x454e4e
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x454e1a
test byte [ebp + 0x10], 1
je 0x454e1a
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 0x454e4e
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4a3760]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00441f67
pop ecx
call fcn.00441f41
mov eax, dword [eax]
jmp 0x4552dc
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x454e9f
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4a3760]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00441f67
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x454e42
call fcn.00441f41
mov dword [eax], 0xd
jmp 0x454e42
cmp eax, 2
jne 0x454eaa
or byte [ebp - 1], 0x40
jmp 0x454eb3
cmp eax, 3
jne 0x454eb3
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004447ff
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4a3760]
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 + 0x4a3760]
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 0x454f89
test cl, 0x80
je 0x455059
test byte [ebp + 0x10], 2
je 0x454f89
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0044ff60
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x454f47
call fcn.00441f54
cmp dword [eax], 0x83
je 0x454f89
push dword [esi]
call fcn.0044ed9b
jmp 0x454e41
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.00441800
add esp, 0xc
test eax, eax
jne 0x454f79
cmp word [ebp - 0x2c], 0x1a
jne 0x454f79
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00456c91
add esp, 0xc
cmp eax, edi
je 0x454f3b
push ebx
push ebx
push dword [esi]
call fcn.0044ff60
add esp, 0xc
cmp eax, edi
je 0x454f3b
test byte [ebp - 1], 0x80
je 0x455059
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x454fb1
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x454fae
or dword [ebp + 0x10], edi
jmp 0x454fb1
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x454ffe
cmp eax, 0x10000
je 0x454fea
cmp eax, 0x14000
je 0x454fea
cmp eax, 0x20000
je 0x454ff8
cmp eax, 0x24000
je 0x454ff8
cmp eax, 0x40000
je 0x454fe4
cmp eax, 0x44000
jne 0x455001
mov byte [ebp - 2], 1
jmp 0x455001
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x455001
mov byte [ebp - 2], 2
jmp 0x455001
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x455059
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x455059
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4551b3
cmp eax, 0x80000000
je 0x45517a
cmp eax, ecx
jne 0x455059
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x455059
cmp eax, 2
jbe 0x45525b
cmp eax, 4
jbe 0x45514c
cmp eax, 5
je 0x45525b
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4a3760]
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 + 0x4a3760]
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 0x4550cb
test byte [ebp + 0x10], 8
je 0x4550cb
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4a3760]
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 0x4552da
test byte [ebp + 0x10], 1
je 0x4552da
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 0x4552c3
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00441f67
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4a3760]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0044487c
pop ecx
jmp 0x454e41
push 2
push ebx
push ebx
push dword [esi]
call fcn.00450b6e
add esp, 0x10
or eax, edx
je 0x45525b
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00450b6e
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x454f3b
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00441800
add esp, 0xc
cmp eax, 0xffffffff
je 0x454f3b
cmp eax, 2
je 0x4551ff
cmp eax, 3
jne 0x45524d
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4551ff
mov byte [ebp - 2], 1
jmp 0x455059
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x455059
cmp eax, 2
jbe 0x45525b
cmp eax, 4
ja 0x455050
push 2
push ebx
push ebx
push dword [esi]
call fcn.00450b6e
add esp, 0x10
or eax, edx
je 0x45525b
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00450b6e
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x455059
jmp 0x454f3b
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x455227
push dword [esi]
call fcn.0044ed9b
pop ecx
call fcn.00441f41
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x4552dc
cmp eax, 0xfeff
jne 0x45524d
push ebx
push 2
push dword [esi]
call fcn.0044ff60
add esp, 0xc
cmp eax, 0xffffffff
je 0x454f3b
mov byte [ebp - 2], 2
jmp 0x455059
push ebx
push ebx
push dword [esi]
call fcn.0044ff60
add esp, 0xc
jmp 0x4551f1
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x45527b
dec eax
jne 0x455059
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x455289
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.0044254b
add esp, 0xc
cmp eax, 0xffffffff
je 0x4552af
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x455289
jmp 0x455059
push dword [esi]
call fcn.0044ed9b
pop ecx
call fcn.00441f41
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x4552dc
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4a3760]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret