Function at 0x42a0db
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 0x42a10a
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x42a114
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0042ed6f
test eax, eax
pop ecx
je 0x42a12f
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004164ea
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0041e681
test eax, eax
pop ecx
je 0x42a14a
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004164ea
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x42a167
test ecx, 0x74000
jne 0x42a163
cmp dword [ebp - 0x24], eax
je 0x42a167
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, bind
je 0x42a1c1
dec eax
je 0x42a1ab
dec eax
je 0x42a1a6
call fcn.0041c4a6
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0041c493
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004165e6
add esp, 0x14
jmp 0x42a773
mov dword [ebp - 8], edx
jmp 0x42a1c4
test cl, 8
je 0x42a1b8
test ecx, 0x70000
jne 0x42a1a6
mov dword [ebp - 8], 0x40000000
jmp 0x42a1c4
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x42a205
sub eax, ecx
je 0x42a1fc
sub eax, ecx
je 0x42a1f3
sub eax, ecx
je 0x42a1ea
sub eax, 0x40
jne 0x42a180
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x42a208
mov dword [ebp - 0x10], 3
jmp 0x42a208
mov dword [ebp - 0x10], 2
jmp 0x42a208
mov dword [ebp - 0x10], 1
jmp 0x42a208
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 0x42a25b
je 0x42a252
cmp eax, ebx
je 0x42a252
cmp eax, edi
je 0x42a249
cmp eax, 0x200
je 0x42a2ce
cmp eax, 0x300
jne 0x42a180
mov dword [ebp - 0x14], 2
jmp 0x42a278
mov dword [ebp - 0x14], 4
jmp 0x42a278
mov dword [ebp - 0x14], 3
jmp 0x42a278
cmp eax, 0x500
je 0x42a271
cmp eax, 0x600
je 0x42a2ce
cmp eax, edx
jne 0x42a180
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x42a29c
mov ecx, dword [0x47dec8]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x42a29c
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x42a2b8
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x42a2b8
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x42a2c1
or dword [ebp - 0xc], edi
test al, 0x20
je 0x42a2d7
or dword [ebp - 0xc], 0x8000000
jmp 0x42a2e2
mov dword [ebp - 0x14], 5
jmp 0x42a278
test al, 0x10
je 0x42a2e2
or dword [ebp - 0xc], 0x10000000
call fcn.0042b72e
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x42a308
call fcn.0041c4a6
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0041c493
mov dword [eax], 0x18
jmp 0x42a396
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 0x42a3a2
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x42a36e
test byte [ebp + 0x10], 1
je 0x42a36e
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 0x42a3a2
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x47ef80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0041c4b9
pop ecx
call fcn.0041c493
mov eax, dword [eax]
jmp 0x42a82f
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x42a3f3
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x47ef80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0041c4b9
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x42a396
call fcn.0041c493
mov dword [eax], 0xd
jmp 0x42a396
cmp eax, 2
jne 0x42a3fe
or byte [ebp - 1], 0x40
jmp 0x42a407
cmp eax, 3
jne 0x42a407
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0042b4fd
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x47ef80]
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 + 0x47ef80]
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 0x42a4dc
test cl, 0x80
je 0x42a5ac
test byte [ebp + 0x10], 2
je 0x42a4dc
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00421358
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x42a49b
call fcn.0041c4a6
cmp dword [eax], 0x83
je 0x42a4dc
push dword [esi]
call fcn.0041d934
jmp 0x42a395
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.004215c6
add esp, 0xc
test eax, eax
jne 0x42a4cc
cmp byte [ebp - 4], 0x1a
jne 0x42a4cc
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0042eaff
add esp, 0xc
cmp eax, edi
je 0x42a48f
push ebx
push ebx
push dword [esi]
call fcn.00421358
add esp, 0xc
cmp eax, edi
je 0x42a48f
test byte [ebp - 1], 0x80
je 0x42a5ac
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x42a504
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x42a501
or dword [ebp + 0x10], edi
jmp 0x42a504
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x42a551
cmp eax, 0x10000
je 0x42a53d
cmp eax, 0x14000
je 0x42a53d
cmp eax, 0x20000
je 0x42a54b
cmp eax, 0x24000
je 0x42a54b
cmp eax, 0x40000
je 0x42a537
cmp eax, 0x44000
jne 0x42a554
mov byte [ebp - 2], 1
jmp 0x42a554
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x42a554
mov byte [ebp - 2], 2
jmp 0x42a554
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x42a5ac
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x42a5ac
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x42a706
cmp eax, 0x80000000
je 0x42a6cd
cmp eax, ecx
jne 0x42a5ac
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42a5ac
cmp eax, 2
jbe 0x42a7ae
cmp eax, 4
jbe 0x42a69f
cmp eax, 5
je 0x42a7ae
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x47ef80]
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 + 0x47ef80]
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 0x42a61e
test byte [ebp + 0x10], 8
je 0x42a61e
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x47ef80]
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 0x42a82d
test byte [ebp + 0x10], 1
je 0x42a82d
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 0x42a816
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0041c4b9
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x47ef80]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0042b57a
pop ecx
jmp 0x42a395
push 2
push ebx
push ebx
push dword [esi]
call fcn.0042b0d3
add esp, 0x10
or eax, edx
je 0x42a7ae
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0042b0d3
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x42a48f
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004215c6
add esp, 0xc
cmp eax, 0xffffffff
je 0x42a48f
cmp eax, 2
je 0x42a752
cmp eax, 3
jne 0x42a7a0
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x42a752
mov byte [ebp - 2], 1
jmp 0x42a5ac
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x42a5ac
cmp eax, 2
jbe 0x42a7ae
cmp eax, 4
ja 0x42a5a3
push 2
push ebx
push ebx
push dword [esi]
call fcn.0042b0d3
add esp, 0x10
or eax, edx
je 0x42a7ae
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0042b0d3
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x42a5ac
jmp 0x42a48f
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x42a77a
push dword [esi]
call fcn.0041d934
pop ecx
call fcn.0041c493
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x42a82f
cmp eax, 0xfeff
jne 0x42a7a0
push ebx
push 2
push dword [esi]
call fcn.00421358
add esp, 0xc
cmp eax, 0xffffffff
je 0x42a48f
mov byte [ebp - 2], 2
jmp 0x42a5ac
push ebx
push ebx
push dword [esi]
call fcn.00421358
add esp, 0xc
jmp 0x42a744
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x42a7ce
dec eax
jne 0x42a5ac
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x42a7dc
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.0041d651
add esp, 0xc
cmp eax, 0xffffffff
je 0x42a802
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x42a7dc
jmp 0x42a5ac
push dword [esi]
call fcn.0041d934
pop ecx
call fcn.0041c493
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x42a82f
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x47ef80]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret