Function at 0x420530
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 0x42055f
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x420569
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.004223a6
test eax, eax
pop ecx
je 0x420584
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0040ec3a
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0041460e
test eax, eax
pop ecx
je 0x42059f
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0040ec3a
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4205bc
test ecx, 0x74000
jne 0x4205b8
cmp dword [ebp - 0x24], eax
je 0x4205bc
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, 0x80000000
je 0x420616
dec eax
je 0x420600
dec eax
je 0x4205fb
call fcn.0041056c
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00410559
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0040ed36
add esp, 0x14
jmp 0x420bc8
mov dword [ebp - 8], edx
jmp 0x420619
test cl, 8
je 0x42060d
test ecx, 0x70000
jne 0x4205fb
mov dword [ebp - 8], 0x40000000
jmp 0x420619
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x42065a
sub eax, ecx
je 0x420651
sub eax, ecx
je 0x420648
sub eax, ecx
je 0x42063f
sub eax, 0x40
jne 0x4205d5
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x42065d
mov dword [ebp - 0x10], 3
jmp 0x42065d
mov dword [ebp - 0x10], 2
jmp 0x42065d
mov dword [ebp - 0x10], 1
jmp 0x42065d
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 0x4206b0
je 0x4206a7
cmp eax, ebx
je 0x4206a7
cmp eax, edi
je 0x42069e
cmp eax, 0x200
je 0x420723
cmp eax, 0x300
jne 0x4205d5
mov dword [ebp - 0x14], 2
jmp 0x4206cd
mov dword [ebp - 0x14], 4
jmp 0x4206cd
mov dword [ebp - 0x14], 3
jmp 0x4206cd
cmp eax, 0x500
je 0x4206c6
cmp eax, 0x600
je 0x420723
cmp eax, edx
jne 0x4205d5
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x4206f1
mov ecx, dword [0x42dee4]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x4206f1
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x42070d
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x42070d
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x420716
or dword [ebp - 0xc], edi
test al, 0x20
je 0x42072c
or dword [ebp - 0xc], 0x8000000
jmp 0x420737
mov dword [ebp - 0x14], 5
jmp 0x4206cd
test al, 0x10
je 0x420737
or dword [ebp - 0xc], 0x10000000
call fcn.0041fb7d
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x42075d
call fcn.0041056c
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00410559
mov dword [eax], 0x18
jmp 0x4207eb
mov eax, dword [ebp + 8]
mov edi, dword [fcn.004241cc]
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 0x4207f7
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4207c3
test byte [ebp + 0x10], 1
je 0x4207c3
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 0x4207f7
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x42eb80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [fcn.00424040]
push eax
call fcn.0041057f
pop ecx
call fcn.00410559
mov eax, dword [eax]
jmp 0x420c84
push dword [ebp - 0x1c]
call dword [0x42413c]
cmp eax, ebx
jne 0x420848
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x42eb80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [fcn.00424040]
mov esi, eax
push esi
call fcn.0041057f
pop ecx
push dword [ebp - 0x1c]
call dword [fcn.004241dc]
cmp esi, ebx
jne 0x4207eb
call fcn.00410559
mov dword [eax], 0xd
jmp 0x4207eb
cmp eax, 2
jne 0x420853
or byte [ebp - 1], 0x40
jmp 0x42085c
cmp eax, 3
jne 0x42085c
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0041f94c
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x42eb80]
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 + 0x42eb80]
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 0x420931
test cl, 0x80
je 0x420a01
test byte [ebp + 0x10], 2
je 0x420931
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004197af
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x4208f0
call fcn.0041056c
cmp dword [eax], 0x83
je 0x420931
push dword [esi]
call fcn.0041a2bb
jmp 0x4207ea
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0041eeda
add esp, 0xc
test eax, eax
jne 0x420921
cmp byte [ebp - 4], 0x1a
jne 0x420921
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00422136
add esp, 0xc
cmp eax, edi
je 0x4208e4
push ebx
push ebx
push dword [esi]
call fcn.004197af
add esp, 0xc
cmp eax, edi
je 0x4208e4
test byte [ebp - 1], 0x80
je 0x420a01
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x420959
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x420956
or dword [ebp + 0x10], edi
jmp 0x420959
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x4209a6
cmp eax, 0x10000
je 0x420992
cmp eax, 0x14000
je 0x420992
cmp eax, 0x20000
je 0x4209a0
cmp eax, 0x24000
je 0x4209a0
cmp eax, 0x40000
je 0x42098c
cmp eax, 0x44000
jne 0x4209a9
mov byte [ebp - 2], 1
jmp 0x4209a9
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x4209a9
mov byte [ebp - 2], 2
jmp 0x4209a9
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x420a01
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x420a01
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x420b5b
cmp eax, 0x80000000
je 0x420b22
cmp eax, ecx
jne 0x420a01
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x420a01
cmp eax, 2
jbe 0x420c03
cmp eax, 4
jbe 0x420af4
cmp eax, 5
je 0x420c03
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x42eb80]
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 + 0x42eb80]
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 0x420a73
test byte [ebp + 0x10], 8
je 0x420a73
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x42eb80]
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 0x420c82
test byte [ebp + 0x10], 1
je 0x420c82
push dword [ebp - 0x1c]
call dword [fcn.004241dc]
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 [fcn.004241cc]
cmp eax, 0xffffffff
jne 0x420c6b
call dword [fcn.00424040]
push eax
call fcn.0041057f
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x42eb80]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0041f9c9
pop ecx
jmp 0x4207ea
push 2
push ebx
push ebx
push dword [esi]
call fcn.0041eadb
add esp, 0x10
or eax, edx
je 0x420c03
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0041eadb
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x4208e4
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0041eeda
add esp, 0xc
cmp eax, 0xffffffff
je 0x4208e4
cmp eax, 2
je 0x420ba7
cmp eax, 3
jne 0x420bf5
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x420ba7
mov byte [ebp - 2], 1
jmp 0x420a01
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x420a01
cmp eax, 2
jbe 0x420c03
cmp eax, 4
ja 0x4209f8
push 2
push ebx
push ebx
push dword [esi]
call fcn.0041eadb
add esp, 0x10
or eax, edx
je 0x420c03
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0041eadb
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x420a01
jmp 0x4208e4
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x420bcf
push dword [esi]
call fcn.0041a2bb
pop ecx
call fcn.00410559
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x420c84
cmp eax, 0xfeff
jne 0x420bf5
push ebx
push 2
push dword [esi]
call fcn.004197af
add esp, 0xc
cmp eax, 0xffffffff
je 0x4208e4
mov byte [ebp - 2], 2
jmp 0x420a01
push ebx
push ebx
push dword [esi]
call fcn.004197af
add esp, 0xc
jmp 0x420b99
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x420c23
dec eax
jne 0x420a01
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x420c31
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.0041a05b
add esp, 0xc
cmp eax, 0xffffffff
je 0x420c57
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x420c31
jmp 0x420a01
push dword [esi]
call fcn.0041a2bb
pop ecx
call fcn.00410559
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x420c84
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x42eb80]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret