Function at 0x580fac
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 0x580fdb
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x580fe5
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call 0x576b25
test eax, eax
pop ecx
je 0x581000
push ebx
push ebx
push ebx
push ebx
push ebx
call 0x578f36
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call 0x577d65
test eax, eax
pop ecx
je 0x58101b
push ebx
push ebx
push ebx
push ebx
push ebx
call 0x578f36
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x581038
test ecx, 0x74000
jne 0x581034
cmp dword [ebp - 0x24], eax
je 0x581038
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, 0x80000000
je 0x581092
dec eax
je 0x58107c
dec eax
je 0x581077
call 0x5751b5
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.005751a2
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00579032
add esp, 0x14
jmp 0x581644
mov dword [ebp - 8], edx
jmp 0x581095
test cl, 8
je 0x581089
test ecx, 0x70000
jne 0x581077
mov dword [ebp - 8], 0x40000000
jmp 0x581095
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x5810d6
sub eax, ecx
je 0x5810cd
sub eax, ecx
je 0x5810c4
sub eax, ecx
je 0x5810bb
sub eax, 0x40
jne 0x581051
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x5810d9
mov dword [ebp - 0x10], 3
jmp 0x5810d9
mov dword [ebp - 0x10], 2
jmp 0x5810d9
mov dword [ebp - 0x10], 1
jmp 0x5810d9
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 0x58112c
je 0x581123
cmp eax, ebx
je 0x581123
cmp eax, edi
je 0x58111a
cmp eax, 0x200
je 0x58119f
cmp eax, 0x300
jne 0x581051
mov dword [ebp - 0x14], 2
jmp 0x581149
mov dword [ebp - 0x14], 4
jmp 0x581149
mov dword [ebp - 0x14], 3
jmp 0x581149
cmp eax, 0x500
je 0x581142
cmp eax, 0x600
je 0x58119f
cmp eax, edx
jne 0x581051
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x58116d
mov ecx, dword [0x1003e988]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x58116d
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x581189
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x581189
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x581192
or dword [ebp - 0xc], edi
test al, 0x20
je 0x5811a8
or dword [ebp - 0xc], 0x8000000
jmp 0x5811b3
mov dword [ebp - 0x14], 5
jmp 0x581149
test al, 0x10
je 0x5811b3
or dword [ebp - 0xc], 0x10000000
call 0x577087
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x5811d9
call 0x5751b5
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.005751a2
mov dword [eax], 0x18
jmp 0x581267
mov eax, dword [ebp + 8]
mov edi, dword [0x10029014]
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 0x581273
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x58123f
test byte [ebp + 0x10], 1
je 0x58123f
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 0x581273
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x10045f60]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [0x100290b4]
push eax
call 0x5751c8
pop ecx
call fcn.005751a2
mov eax, dword [eax]
jmp 0x581700
push dword [ebp - 0x1c]
call dword [0x10029108]
cmp eax, ebx
jne 0x5812c4
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x10045f60]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [0x100290b4]
mov esi, eax
push esi
call 0x5751c8
pop ecx
push dword [ebp - 0x1c]
call dword [0x1002906c]
cmp esi, ebx
jne 0x581267
call fcn.005751a2
mov dword [eax], 0xd
jmp 0x581267
cmp eax, 2
jne 0x5812cf
or byte [ebp - 1], 0x40
jmp 0x5812d8
cmp eax, 3
jne 0x5812d8
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call 0x576e56
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x10045f60]
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 + 0x10045f60]
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 0x5813ad
test cl, 0x80
je 0x58147d
test byte [ebp + 0x10], 2
je 0x5813ad
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call 0x57c474
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x58136c
call 0x5751b5
cmp dword [eax], 0x83
je 0x5813ad
push dword [esi]
call 0x57c2e7
jmp 0x581266
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0057e1db
add esp, 0xc
test eax, eax
jne 0x58139d
cmp byte [ebp - 4], 0x1a
jne 0x58139d
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0058246c
add esp, 0xc
cmp eax, edi
je 0x581360
push ebx
push ebx
push dword [esi]
call 0x57c474
add esp, 0xc
cmp eax, edi
je 0x581360
test byte [ebp - 1], 0x80
je 0x58147d
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x5813d5
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x5813d2
or dword [ebp + 0x10], edi
jmp 0x5813d5
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x581422
cmp eax, 0x10000
je 0x58140e
cmp eax, 0x14000
je 0x58140e
cmp eax, 0x20000
je 0x58141c
cmp eax, 0x24000
je 0x58141c
cmp eax, 0x40000
je 0x581408
cmp eax, 0x44000
jne 0x581425
mov byte [ebp - 2], 1
jmp 0x581425
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x581425
mov byte [ebp - 2], 2
jmp 0x581425
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x58147d
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x58147d
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x5815d7
cmp eax, 0x80000000
je 0x58159e
cmp eax, ecx
jne 0x58147d
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x58147d
cmp eax, 2
jbe 0x58167f
cmp eax, 4
jbe 0x581570
cmp eax, 5
je 0x58167f
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x10045f60]
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 + 0x10045f60]
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 0x5814ef
test byte [ebp + 0x10], 8
je 0x5814ef
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x10045f60]
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 0x5816fe
test byte [ebp + 0x10], 1
je 0x5816fe
push dword [ebp - 0x1c]
call dword [0x1002906c]
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 [0x10029014]
cmp eax, 0xffffffff
jne 0x5816e7
call dword [0x100290b4]
push eax
call 0x5751c8
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x10045f60]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call 0x576ed3
pop ecx
jmp 0x581266
push 2
push ebx
push ebx
push dword [esi]
call fcn.0057fe47
add esp, 0x10
or eax, edx
je 0x58167f
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0057fe47
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x581360
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0057e1db
add esp, 0xc
cmp eax, 0xffffffff
je 0x581360
cmp eax, 2
je 0x581623
cmp eax, 3
jne 0x581671
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x581623
mov byte [ebp - 2], 1
jmp 0x58147d
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x58147d
cmp eax, 2
jbe 0x58167f
cmp eax, 4
ja 0x581474
push 2
push ebx
push ebx
push dword [esi]
call fcn.0057fe47
add esp, 0x10
or eax, edx
je 0x58167f
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0057fe47
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x58147d
jmp 0x581360
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x58164b
push dword [esi]
call 0x57c2e7
pop ecx
call fcn.005751a2
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x581700
cmp eax, 0xfeff
jne 0x581671
push ebx
push 2
push dword [esi]
call 0x57c474
add esp, 0xc
cmp eax, 0xffffffff
je 0x581360
mov byte [ebp - 2], 2
jmp 0x58147d
push ebx
push ebx
push dword [esi]
call 0x57c474
add esp, 0xc
jmp 0x581615
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x58169f
dec eax
jne 0x58147d
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x5816ad
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.0057dad5
add esp, 0xc
cmp eax, 0xffffffff
je 0x5816d3
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x5816ad
jmp 0x58147d
push dword [esi]
call 0x57c2e7
pop ecx
call fcn.005751a2
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x581700
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x10045f60]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret