Function at 0x455a41
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 0x455a70
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x455a7a
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0045b125
test eax, eax
pop ecx
je 0x455a95
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0043df22
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00445e4c
test eax, eax
pop ecx
je 0x455ab0
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0043df22
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x455acd
test ecx, 0x74000
jne 0x455ac9
cmp dword [ebp - 0x24], eax
je 0x455acd
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x455b27
dec eax
je 0x455b11
dec eax
je 0x455b0c
call fcn.0043ce27
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0043ce14
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0043e01e
add esp, 0x14
jmp 0x4560d9
mov dword [ebp - 8], edx
jmp 0x455b2a
test cl, 8
je 0x455b1e
test ecx, 0x70000
jne 0x455b0c
mov dword [ebp - 8], 0x40000000
jmp 0x455b2a
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x455b6b
sub eax, ecx
je 0x455b62
sub eax, ecx
je 0x455b59
sub eax, ecx
je 0x455b50
sub eax, 0x40
jne 0x455ae6
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x455b6e
mov dword [ebp - 0x10], 3
jmp 0x455b6e
mov dword [ebp - 0x10], 2
jmp 0x455b6e
mov dword [ebp - 0x10], 1
jmp 0x455b6e
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 0x455bc1
je 0x455bb8
cmp eax, ebx
je 0x455bb8
cmp eax, edi
je 0x455baf
cmp eax, 0x200
je 0x455c34
cmp eax, 0x300
jne 0x455ae6
mov dword [ebp - 0x14], 2
jmp 0x455bde
mov dword [ebp - 0x14], 4
jmp 0x455bde
mov dword [ebp - 0x14], 3
jmp 0x455bde
cmp eax, 0x500
je 0x455bd7
cmp eax, 0x600
je 0x455c34
cmp eax, edx
jne 0x455ae6
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x455c02
mov ecx, dword [0x510bf4]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x455c02
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x455c1e
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x455c1e
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x455c27
or dword [ebp - 0xc], edi
test al, 0x20
je 0x455c3d
or dword [ebp - 0xc], 0x8000000
jmp 0x455c48
mov dword [ebp - 0x14], 5
jmp 0x455bde
test al, 0x10
je 0x455c48
or dword [ebp - 0xc], 0x10000000
call fcn.00456a50
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x455c6e
call fcn.0043ce27
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0043ce14
mov dword [eax], 0x18
jmp 0x455cfc
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 0x455d08
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x455cd4
test byte [ebp + 0x10], 1
je 0x455cd4
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 0x455d08
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x5121e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0043ce3a
pop ecx
call fcn.0043ce14
mov eax, dword [eax]
jmp 0x456195
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x455d59
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x5121e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0043ce3a
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x455cfc
call fcn.0043ce14
mov dword [eax], 0xd
jmp 0x455cfc
cmp eax, 2
jne 0x455d64
or byte [ebp - 1], 0x40
jmp 0x455d6d
cmp eax, 3
jne 0x455d6d
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0045681f
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x5121e0]
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 + 0x5121e0]
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 0x455e42
test cl, 0x80
je 0x455f12
test byte [ebp + 0x10], 2
je 0x455e42
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0044936b
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x455e01
call fcn.0043ce27
cmp dword [eax], 0x83
je 0x455e42
push dword [esi]
call fcn.00447db7
jmp 0x455cfb
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0044826b
add esp, 0xc
test eax, eax
jne 0x455e32
cmp byte [ebp - 4], 0x1a
jne 0x455e32
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0045aeb5
add esp, 0xc
cmp eax, edi
je 0x455df5
push ebx
push ebx
push dword [esi]
call fcn.0044936b
add esp, 0xc
cmp eax, edi
je 0x455df5
test byte [ebp - 1], 0x80
je 0x455f12
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x455e6a
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x455e67
or dword [ebp + 0x10], edi
jmp 0x455e6a
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x455eb7
cmp eax, 0x10000
je 0x455ea3
cmp eax, 0x14000
je 0x455ea3
cmp eax, 0x20000
je 0x455eb1
cmp eax, 0x24000
je 0x455eb1
cmp eax, 0x40000
je 0x455e9d
cmp eax, 0x44000
jne 0x455eba
mov byte [ebp - 2], 1
jmp 0x455eba
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x455eba
mov byte [ebp - 2], 2
jmp 0x455eba
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x455f12
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x455f12
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x45606c
cmp eax, 0x80000000
je 0x456033
cmp eax, ecx
jne 0x455f12
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x455f12
cmp eax, 2
jbe 0x456114
cmp eax, 4
jbe 0x456005
cmp eax, 5
je 0x456114
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5121e0]
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 + 0x5121e0]
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 0x455f84
test byte [ebp + 0x10], 8
je 0x455f84
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5121e0]
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 0x456193
test byte [ebp + 0x10], 1
je 0x456193
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 0x45617c
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0043ce3a
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5121e0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0045689c
pop ecx
jmp 0x455cfb
push 2
push ebx
push ebx
push dword [esi]
call fcn.00456d14
add esp, 0x10
or eax, edx
je 0x456114
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00456d14
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x455df5
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0044826b
add esp, 0xc
cmp eax, 0xffffffff
je 0x455df5
cmp eax, 2
je 0x4560b8
cmp eax, 3
jne 0x456106
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x4560b8
mov byte [ebp - 2], 1
jmp 0x455f12
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x455f12
cmp eax, 2
jbe 0x456114
cmp eax, 4
ja 0x455f09
push 2
push ebx
push ebx
push dword [esi]
call fcn.00456d14
add esp, 0x10
or eax, edx
je 0x456114
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00456d14
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x455f12
jmp 0x455df5
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x4560e0
push dword [esi]
call fcn.00447db7
pop ecx
call fcn.0043ce14
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x456195
cmp eax, 0xfeff
jne 0x456106
push ebx
push 2
push dword [esi]
call fcn.0044936b
add esp, 0xc
cmp eax, 0xffffffff
je 0x455df5
mov byte [ebp - 2], 2
jmp 0x455f12
push ebx
push ebx
push dword [esi]
call fcn.0044936b
add esp, 0xc
jmp 0x4560aa
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x456134
dec eax
jne 0x455f12
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x456142
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.0044904f
add esp, 0xc
cmp eax, 0xffffffff
je 0x456168
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x456142
jmp 0x455f12
push dword [esi]
call fcn.00447db7
pop ecx
call fcn.0043ce14
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x456195
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5121e0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret