Function at 0x5021f0
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 0x50221f
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x502229
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00503d7b
test eax, eax
pop ecx
je 0x502244
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004eba6b
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004e7243
test eax, eax
pop ecx
je 0x50225f
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.004eba6b
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x50227c
test ecx, 0x74000
jne 0x502278
cmp dword [ebp - 0x24], eax
je 0x50227c
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, DirectSoundCreate
je 0x5022d6
dec eax
je 0x5022c0
dec eax
je 0x5022bb
call fcn.004eacd5
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004eacc2
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.004ebb67
add esp, 0x14
jmp 0x502889
mov dword [ebp - 8], edx
jmp 0x5022d9
test cl, 8
je 0x5022cd
test ecx, 0x70000
jne 0x5022bb
mov dword [ebp - 8], 0x40000000
jmp 0x5022d9
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x50231a
sub eax, ecx
je 0x502311
sub eax, ecx
je 0x502308
sub eax, ecx
je 0x5022ff
sub eax, 0x40
jne 0x502295
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x50231d
mov dword [ebp - 0x10], 3
jmp 0x50231d
mov dword [ebp - 0x10], 2
jmp 0x50231d
mov dword [ebp - 0x10], 1
jmp 0x50231d
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 0x502370
je 0x502367
cmp eax, ebx
je 0x502367
cmp eax, edi
je 0x50235e
cmp eax, 0x200
je 0x5023e3
cmp eax, 0x300
jne 0x502295
mov dword [ebp - 0x14], 2
jmp 0x50238d
mov dword [ebp - 0x14], 4
jmp 0x50238d
mov dword [ebp - 0x14], 3
jmp 0x50238d
cmp eax, 0x500
je 0x502386
cmp eax, 0x600
je 0x5023e3
cmp eax, edx
jne 0x502295
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x5023b1
mov ecx, dword [0x55339c]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x5023b1
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x5023cd
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x5023cd
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x5023d6
or dword [ebp - 0xc], edi
test al, 0x20
je 0x5023ec
or dword [ebp - 0xc], 0x8000000
jmp 0x5023f7
mov dword [ebp - 0x14], 5
jmp 0x50238d
test al, 0x10
je 0x5023f7
or dword [ebp - 0xc], 0x10000000
call fcn.00501f8f
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x50241d
call fcn.004eacd5
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.004eacc2
mov dword [eax], 0x18
jmp 0x5024ab
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 0x5024b7
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x502483
test byte [ebp + 0x10], 1
je 0x502483
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 0x5024b7
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x554140]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.DLL_GetLastError]
push eax
call fcn.004eace8
pop ecx
call fcn.004eacc2
mov eax, dword [eax]
jmp 0x502945
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.DLL_GetFileType]
cmp eax, ebx
jne 0x502508
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x554140]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.DLL_GetLastError]
mov esi, eax
push esi
call fcn.004eace8
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.DLL_CloseHandle]
cmp esi, ebx
jne 0x5024ab
call fcn.004eacc2
mov dword [eax], 0xd
jmp 0x5024ab
cmp eax, 2
jne 0x502513
or byte [ebp - 1], 0x40
jmp 0x50251c
cmp eax, 3
jne 0x50251c
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.00501d5e
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x554140]
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 + 0x554140]
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 0x5025f2
test cl, 0x80
je 0x5026c2
test byte [ebp + 0x10], 2
je 0x5025f2
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00503c4d
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x5025b0
call fcn.004eacd5
cmp dword [eax], 0x83
je 0x5025f2
push dword [esi]
call fcn.004f7d30
jmp 0x5024aa
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.004fb5bb
add esp, 0xc
test eax, eax
jne 0x5025e2
cmp word [ebp - 0x2c], 0x1a
jne 0x5025e2
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00503a99
add esp, 0xc
cmp eax, edi
je 0x5025a4
push ebx
push ebx
push dword [esi]
call fcn.00503c4d
add esp, 0xc
cmp eax, edi
je 0x5025a4
test byte [ebp - 1], 0x80
je 0x5026c2
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x50261a
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x502617
or dword [ebp + 0x10], edi
jmp 0x50261a
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x502667
cmp eax, 0x10000
je 0x502653
cmp eax, 0x14000
je 0x502653
cmp eax, 0x20000
je 0x502661
cmp eax, 0x24000
je 0x502661
cmp eax, 0x40000
je 0x50264d
cmp eax, 0x44000
jne 0x50266a
mov byte [ebp - 2], 1
jmp 0x50266a
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x50266a
mov byte [ebp - 2], 2
jmp 0x50266a
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x5026c2
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x5026c2
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x50281c
cmp eax, 0x80000000
je 0x5027e3
cmp eax, ecx
jne 0x5026c2
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x5026c2
cmp eax, 2
jbe 0x5028c4
cmp eax, 4
jbe 0x5027b5
cmp eax, 5
je 0x5028c4
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x554140]
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 + 0x554140]
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 0x502734
test byte [ebp + 0x10], 8
je 0x502734
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x554140]
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 0x502943
test byte [ebp + 0x10], 1
je 0x502943
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 0x50292c
call dword [sym.imp.KERNEL32.DLL_GetLastError]
push eax
call fcn.004eace8
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x554140]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.00501ddb
pop ecx
jmp 0x5024aa
push 2
push ebx
push ebx
push dword [esi]
call fcn.00500052
add esp, 0x10
or eax, edx
je 0x5028c4
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00500052
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x5025a4
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.004fb5bb
add esp, 0xc
cmp eax, 0xffffffff
je 0x5025a4
cmp eax, 2
je 0x502868
cmp eax, 3
jne 0x5028b6
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x502868
mov byte [ebp - 2], 1
jmp 0x5026c2
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x5026c2
cmp eax, 2
jbe 0x5028c4
cmp eax, 4
ja 0x5026b9
push 2
push ebx
push ebx
push dword [esi]
call fcn.00500052
add esp, 0x10
or eax, edx
je 0x5028c4
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00500052
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x5026c2
jmp 0x5025a4
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x502890
push dword [esi]
call fcn.004f7d30
pop ecx
call fcn.004eacc2
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x502945
cmp eax, 0xfeff
jne 0x5028b6
push ebx
push 2
push dword [esi]
call fcn.00503c4d
add esp, 0xc
cmp eax, 0xffffffff
je 0x5025a4
mov byte [ebp - 2], 2
jmp 0x5026c2
push ebx
push ebx
push dword [esi]
call fcn.00503c4d
add esp, 0xc
jmp 0x50285a
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x5028e4
dec eax
jne 0x5026c2
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x5028f2
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.004f84b0
add esp, 0xc
cmp eax, 0xffffffff
je 0x502918
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x5028f2
jmp 0x5026c2
push dword [esi]
call fcn.004f7d30
pop ecx
call fcn.004eacc2
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x502945
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x554140]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret