Function at 0x42a8c5
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 0x42a8f4
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x42a8fe
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0042c19d
test eax, eax
pop ecx
je 0x42a919
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0041feba
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0041d436
test eax, eax
pop ecx
je 0x42a934
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0041feba
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x42a951
test ecx, 0x74000
jne 0x42a94d
cmp dword [ebp - 0x24], eax
je 0x42a951
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, 0x80000000
je 0x42a9ab
dec eax
je 0x42a995
dec eax
je 0x42a990
call fcn.0041bbcd
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0041bbba
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0041ffb6
add esp, 0x14
jmp 0x42af5d
mov dword [ebp - 8], edx
jmp 0x42a9ae
test cl, 8
je 0x42a9a2
test ecx, 0x70000
jne 0x42a990
mov dword [ebp - 8], 0x40000000
jmp 0x42a9ae
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x42a9ef
sub eax, ecx
je 0x42a9e6
sub eax, ecx
je 0x42a9dd
sub eax, ecx
je 0x42a9d4
sub eax, 0x40
jne 0x42a96a
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x42a9f2
mov dword [ebp - 0x10], 3
jmp 0x42a9f2
mov dword [ebp - 0x10], 2
jmp 0x42a9f2
mov dword [ebp - 0x10], 1
jmp 0x42a9f2
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 0x42aa45
je 0x42aa3c
cmp eax, ebx
je 0x42aa3c
cmp eax, edi
je 0x42aa33
cmp eax, 0x200
je 0x42aab8
cmp eax, 0x300
jne 0x42a96a
mov dword [ebp - 0x14], 2
jmp 0x42aa62
mov dword [ebp - 0x14], 4
jmp 0x42aa62
mov dword [ebp - 0x14], 3
jmp 0x42aa62
cmp eax, 0x500
je 0x42aa5b
cmp eax, 0x600
je 0x42aab8
cmp eax, edx
jne 0x42a96a
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x42aa86
mov ecx, dword [0x43ecac]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x42aa86
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x42aaa2
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x42aaa2
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x42aaab
or dword [ebp - 0xc], edi
test al, 0x20
je 0x42aac1
or dword [ebp - 0xc], 0x8000000
jmp 0x42aacc
mov dword [ebp - 0x14], 5
jmp 0x42aa62
test al, 0x10
je 0x42aacc
or dword [ebp - 0xc], 0x10000000
call fcn.0042a645
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x42aaf2
call fcn.0041bbcd
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0041bbba
mov dword [eax], 0x18
jmp 0x42ab80
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 0x42ab8c
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x42ab58
test byte [ebp + 0x10], 1
je 0x42ab58
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 0x42ab8c
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x43f7e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0041bbe0
pop ecx
call fcn.0041bbba
mov eax, dword [eax]
jmp 0x42b019
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x42abdd
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x43f7e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0041bbe0
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x42ab80
call fcn.0041bbba
mov dword [eax], 0xd
jmp 0x42ab80
cmp eax, 2
jne 0x42abe8
or byte [ebp - 1], 0x40
jmp 0x42abf1
cmp eax, 3
jne 0x42abf1
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0042a414
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x43f7e0]
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 + 0x43f7e0]
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 0x42acc6
test cl, 0x80
je 0x42ad96
test byte [ebp + 0x10], 2
je 0x42acc6
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0042c06f
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x42ac85
call fcn.0041bbcd
cmp dword [eax], 0x83
je 0x42acc6
push dword [esi]
call fcn.004237da
jmp 0x42ab7f
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0042996a
add esp, 0xc
test eax, eax
jne 0x42acb6
cmp byte [ebp - 4], 0x1a
jne 0x42acb6
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0042bebb
add esp, 0xc
cmp eax, edi
je 0x42ac79
push ebx
push ebx
push dword [esi]
call fcn.0042c06f
add esp, 0xc
cmp eax, edi
je 0x42ac79
test byte [ebp - 1], 0x80
je 0x42ad96
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x42acee
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x42aceb
or dword [ebp + 0x10], edi
jmp 0x42acee
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x42ad3b
cmp eax, 0x10000
je 0x42ad27
cmp eax, 0x14000
je 0x42ad27
cmp eax, 0x20000
je 0x42ad35
cmp eax, 0x24000
je 0x42ad35
cmp eax, 0x40000
je 0x42ad21
cmp eax, 0x44000
jne 0x42ad3e
mov byte [ebp - 2], 1
jmp 0x42ad3e
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x42ad3e
mov byte [ebp - 2], 2
jmp 0x42ad3e
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x42ad96
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x42ad96
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x42aef0
cmp eax, 0x80000000
je 0x42aeb7
cmp eax, ecx
jne 0x42ad96
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42ad96
cmp eax, 2
jbe 0x42af98
cmp eax, 4
jbe 0x42ae89
cmp eax, 5
je 0x42af98
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x43f7e0]
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 + 0x43f7e0]
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 0x42ae08
test byte [ebp + 0x10], 8
je 0x42ae08
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x43f7e0]
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 0x42b017
test byte [ebp + 0x10], 1
je 0x42b017
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 0x42b000
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0041bbe0
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x43f7e0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0042a491
pop ecx
jmp 0x42ab7f
push 2
push ebx
push ebx
push dword [esi]
call fcn.00428b06
add esp, 0x10
or eax, edx
je 0x42af98
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00428b06
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x42ac79
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0042996a
add esp, 0xc
cmp eax, 0xffffffff
je 0x42ac79
cmp eax, 2
je 0x42af3c
cmp eax, 3
jne 0x42af8a
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x42af3c
mov byte [ebp - 2], 1
jmp 0x42ad96
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42ad96
cmp eax, 2
jbe 0x42af98
cmp eax, 4
ja 0x42ad8d
push 2
push ebx
push ebx
push dword [esi]
call fcn.00428b06
add esp, 0x10
or eax, edx
je 0x42af98
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00428b06
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x42ad96
jmp 0x42ac79
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x42af64
push dword [esi]
call fcn.004237da
pop ecx
call fcn.0041bbba
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x42b019
cmp eax, 0xfeff
jne 0x42af8a
push ebx
push 2
push dword [esi]
call fcn.0042c06f
add esp, 0xc
cmp eax, 0xffffffff
je 0x42ac79
mov byte [ebp - 2], 2
jmp 0x42ad96
push ebx
push ebx
push dword [esi]
call fcn.0042c06f
add esp, 0xc
jmp 0x42af2e
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x42afb8
dec eax
jne 0x42ad96
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x42afc6
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.00429268
add esp, 0xc
cmp eax, 0xffffffff
je 0x42afec
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x42afc6
jmp 0x42ad96
push dword [esi]
call fcn.004237da
pop ecx
call fcn.0041bbba
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x42b019
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x43f7e0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret