Function at 0x57f4d0
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 0x57f4ff
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x57f509
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0058392f
test eax, eax
pop ecx
je 0x57f524
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00565e87
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.00570d18
test eax, eax
pop ecx
je 0x57f53f
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00565e87
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x57f55c
test ecx, 0x74000
jne 0x57f558
cmp dword [ebp - 0x24], eax
je 0x57f55c
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocStringLen
je 0x57f5b6
dec eax
je 0x57f5a0
dec eax
je 0x57f59b
call fcn.00569b05
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00569af2
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00565f83
add esp, 0x14
jmp 0x57fb69
mov dword [ebp - 8], edx
jmp 0x57f5b9
test cl, 8
je 0x57f5ad
test ecx, 0x70000
jne 0x57f59b
mov dword [ebp - 8], 0x40000000
jmp 0x57f5b9
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x57f5fa
sub eax, ecx
je 0x57f5f1
sub eax, ecx
je 0x57f5e8
sub eax, ecx
je 0x57f5df
sub eax, 0x40
jne 0x57f575
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x57f5fd
mov dword [ebp - 0x10], 3
jmp 0x57f5fd
mov dword [ebp - 0x10], 2
jmp 0x57f5fd
mov dword [ebp - 0x10], 1
jmp 0x57f5fd
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 0x57f650
je 0x57f647
cmp eax, ebx
je 0x57f647
cmp eax, edi
je 0x57f63e
cmp eax, 0x200
je 0x57f6c3
cmp eax, 0x300
jne 0x57f575
mov dword [ebp - 0x14], 2
jmp 0x57f66d
mov dword [ebp - 0x14], 4
jmp 0x57f66d
mov dword [ebp - 0x14], 3
jmp 0x57f66d
cmp eax, 0x500
je 0x57f666
cmp eax, 0x600
je 0x57f6c3
cmp eax, edx
jne 0x57f575
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x57f691
mov ecx, dword [0x5f7f6c]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x57f691
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x57f6ad
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x57f6ad
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x57f6b6
or dword [ebp - 0xc], edi
test al, 0x20
je 0x57f6cc
or dword [ebp - 0xc], 0x8000000
jmp 0x57f6d7
mov dword [ebp - 0x14], 5
jmp 0x57f66d
test al, 0x10
je 0x57f6d7
or dword [ebp - 0xc], 0x10000000
call fcn.0057e82f
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x57f6fd
call fcn.00569b05
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00569af2
mov dword [eax], 0x18
jmp 0x57f78b
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 0x57f797
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x57f763
test byte [ebp + 0x10], 1
je 0x57f763
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 0x57f797
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x5f91c0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00569b18
pop ecx
call fcn.00569af2
mov eax, dword [eax]
jmp 0x57fc25
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x57f7e8
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x5f91c0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00569b18
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x57f78b
call fcn.00569af2
mov dword [eax], 0xd
jmp 0x57f78b
cmp eax, 2
jne 0x57f7f3
or byte [ebp - 1], 0x40
jmp 0x57f7fc
cmp eax, 3
jne 0x57f7fc
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0057e5fe
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x5f91c0]
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 + 0x5f91c0]
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 0x57f8d2
test cl, 0x80
je 0x57f9a2
test byte [ebp + 0x10], 2
je 0x57f8d2
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00578859
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x57f890
call fcn.00569b05
cmp dword [eax], 0x83
je 0x57f8d2
push dword [esi]
call fcn.00574d16
jmp 0x57f78a
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.0057819b
add esp, 0xc
test eax, eax
jne 0x57f8c2
cmp word [ebp - 0x2c], 0x1a
jne 0x57f8c2
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.005836bf
add esp, 0xc
cmp eax, edi
je 0x57f884
push ebx
push ebx
push dword [esi]
call fcn.00578859
add esp, 0xc
cmp eax, edi
je 0x57f884
test byte [ebp - 1], 0x80
je 0x57f9a2
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x57f8fa
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x57f8f7
or dword [ebp + 0x10], edi
jmp 0x57f8fa
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x57f947
cmp eax, 0x10000
je 0x57f933
cmp eax, 0x14000
je 0x57f933
cmp eax, 0x20000
je 0x57f941
cmp eax, 0x24000
je 0x57f941
cmp eax, 0x40000
je 0x57f92d
cmp eax, 0x44000
jne 0x57f94a
mov byte [ebp - 2], 1
jmp 0x57f94a
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x57f94a
mov byte [ebp - 2], 2
jmp 0x57f94a
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x57f9a2
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x57f9a2
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x57fafc
cmp eax, 0x80000000
je 0x57fac3
cmp eax, ecx
jne 0x57f9a2
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x57f9a2
cmp eax, 2
jbe 0x57fba4
cmp eax, 4
jbe 0x57fa95
cmp eax, 5
je 0x57fba4
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5f91c0]
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 + 0x5f91c0]
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 0x57fa14
test byte [ebp + 0x10], 8
je 0x57fa14
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5f91c0]
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 0x57fc23
test byte [ebp + 0x10], 1
je 0x57fc23
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 0x57fc0c
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00569b18
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5f91c0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0057e67b
pop ecx
jmp 0x57f78a
push 2
push ebx
push ebx
push dword [esi]
call fcn.0057e462
add esp, 0x10
or eax, edx
je 0x57fba4
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0057e462
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x57f884
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0057819b
add esp, 0xc
cmp eax, 0xffffffff
je 0x57f884
cmp eax, 2
je 0x57fb48
cmp eax, 3
jne 0x57fb96
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x57fb48
mov byte [ebp - 2], 1
jmp 0x57f9a2
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x57f9a2
cmp eax, 2
jbe 0x57fba4
cmp eax, 4
ja 0x57f999
push 2
push ebx
push ebx
push dword [esi]
call fcn.0057e462
add esp, 0x10
or eax, edx
je 0x57fba4
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0057e462
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x57f9a2
jmp 0x57f884
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x57fb70
push dword [esi]
call fcn.00574d16
pop ecx
call fcn.00569af2
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x57fc25
cmp eax, 0xfeff
jne 0x57fb96
push ebx
push 2
push dword [esi]
call fcn.00578859
add esp, 0xc
cmp eax, 0xffffffff
je 0x57f884
mov byte [ebp - 2], 2
jmp 0x57f9a2
push ebx
push ebx
push dword [esi]
call fcn.00578859
add esp, 0xc
jmp 0x57fb3a
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x57fbc4
dec eax
jne 0x57f9a2
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x57fbd2
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.0056fc62
add esp, 0xc
cmp eax, 0xffffffff
je 0x57fbf8
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x57fbd2
jmp 0x57f9a2
push dword [esi]
call fcn.00574d16
pop ecx
call fcn.00569af2
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x57fc25
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5f91c0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret