Function at 0x6f5d13
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 0x6f5d42
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x6f5d4c
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.006f7c59
test eax, eax
pop ecx
je 0x6f5d67
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.006de437
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.006e680a
test eax, eax
pop ecx
je 0x6f5d82
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.006de437
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x6f5d9f
test ecx, 0x74000
jne 0x6f5d9b
cmp dword [ebp - 0x24], eax
je 0x6f5d9f
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x6f5df9
dec eax
je 0x6f5de3
dec eax
je 0x6f5dde
call fcn.006e378c
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.006e3779
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.006de533
add esp, 0x14
jmp 0x6f63ab
mov dword [ebp - 8], edx
jmp 0x6f5dfc
test cl, 8
je 0x6f5df0
test ecx, 0x70000
jne 0x6f5dde
mov dword [ebp - 8], 0x40000000
jmp 0x6f5dfc
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x6f5e3d
sub eax, ecx
je 0x6f5e34
sub eax, ecx
je 0x6f5e2b
sub eax, ecx
je 0x6f5e22
sub eax, 0x40
jne 0x6f5db8
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x6f5e40
mov dword [ebp - 0x10], 3
jmp 0x6f5e40
mov dword [ebp - 0x10], 2
jmp 0x6f5e40
mov dword [ebp - 0x10], 1
jmp 0x6f5e40
mov dword [ebp - 0x10], ebx
mov eax, dword [ebp + 0x10]
mov edx, 0x700
and eax, edx
mov ecx, 0x400
cmp eax, ecx
mov edi, pe_nt_image_headers32
jg 0x6f5e93
je 0x6f5e8a
cmp eax, ebx
je 0x6f5e8a
cmp eax, edi
je 0x6f5e81
cmp eax, 0x200
je 0x6f5f06
cmp eax, 0x300
jne 0x6f5db8
mov dword [ebp - 0x14], 2
jmp 0x6f5eb0
mov dword [ebp - 0x14], 4
jmp 0x6f5eb0
mov dword [ebp - 0x14], 3
jmp 0x6f5eb0
cmp eax, 0x500
je 0x6f5ea9
cmp eax, 0x600
je 0x6f5f06
cmp eax, edx
jne 0x6f5db8
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x6f5ed4
mov ecx, dword [0x100cdae0]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x6f5ed4
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x6f5ef0
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x6f5ef0
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x6f5ef9
or dword [ebp - 0xc], edi
test al, 0x20
je 0x6f5f0f
or dword [ebp - 0xc], 0x8000000
jmp 0x6f5f1a
mov dword [ebp - 0x14], 5
jmp 0x6f5eb0
test al, 0x10
je 0x6f5f1a
or dword [ebp - 0xc], 0x10000000
call fcn.006f5b74
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x6f5f40
call fcn.006e378c
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.006e3779
mov dword [eax], 0x18
jmp 0x6f5fce
mov eax, dword [ebp + 8]
mov edi, dword [0x100a611c]
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 0x6f5fda
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x6f5fa6
test byte [ebp + 0x10], 1
je 0x6f5fa6
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 0x6f5fda
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x100cff80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [0x100a6300]
push eax
call fcn.006e379f
pop ecx
call fcn.006e3779
mov eax, dword [eax]
jmp 0x6f6467
push dword [ebp - 0x1c]
call dword [0x100a620c]
cmp eax, ebx
jne 0x6f602b
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x100cff80]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [0x100a6300]
mov esi, eax
push esi
call fcn.006e379f
pop ecx
push dword [ebp - 0x1c]
call dword [0x100a6378]
cmp esi, ebx
jne 0x6f5fce
call fcn.006e3779
mov dword [eax], 0xd
jmp 0x6f5fce
cmp eax, 2
jne 0x6f6036
or byte [ebp - 1], 0x40
jmp 0x6f603f
cmp eax, 3
jne 0x6f603f
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.006f5943
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x100cff80]
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 + 0x100cff80]
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 0x6f6114
test cl, 0x80
je 0x6f61e4
test byte [ebp + 0x10], 2
je 0x6f6114
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.006ed7fd
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x6f60d3
call fcn.006e378c
cmp dword [eax], 0x83
je 0x6f6114
push dword [esi]
call fcn.006ec3ce
jmp 0x6f5fcd
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.006ebce3
add esp, 0xc
test eax, eax
jne 0x6f6104
cmp byte [ebp - 4], 0x1a
jne 0x6f6104
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.006f79e9
add esp, 0xc
cmp eax, edi
je 0x6f60c7
push ebx
push ebx
push dword [esi]
call fcn.006ed7fd
add esp, 0xc
cmp eax, edi
je 0x6f60c7
test byte [ebp - 1], 0x80
je 0x6f61e4
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x6f613c
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x6f6139
or dword [ebp + 0x10], edi
jmp 0x6f613c
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x6f6189
cmp eax, 0x10000
je 0x6f6175
cmp eax, 0x14000
je 0x6f6175
cmp eax, 0x20000
je 0x6f6183
cmp eax, 0x24000
je 0x6f6183
cmp eax, 0x40000
je 0x6f616f
cmp eax, 0x44000
jne 0x6f618c
mov byte [ebp - 2], 1
jmp 0x6f618c
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x6f618c
mov byte [ebp - 2], 2
jmp 0x6f618c
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x6f61e4
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x6f61e4
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x6f633e
cmp eax, 0x80000000
je 0x6f6305
cmp eax, ecx
jne 0x6f61e4
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x6f61e4
cmp eax, 2
jbe 0x6f63e6
cmp eax, 4
jbe 0x6f62d7
cmp eax, 5
je 0x6f63e6
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x100cff80]
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 + 0x100cff80]
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 0x6f6256
test byte [ebp + 0x10], 8
je 0x6f6256
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x100cff80]
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 0x6f6465
test byte [ebp + 0x10], 1
je 0x6f6465
push dword [ebp - 0x1c]
call dword [0x100a6378]
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 [0x100a611c]
cmp eax, 0xffffffff
jne 0x6f644e
call dword [0x100a6300]
push eax
call fcn.006e379f
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x100cff80]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.006f59c0
pop ecx
jmp 0x6f5fcd
push 2
push ebx
push ebx
push dword [esi]
call fcn.006f2bb0
add esp, 0x10
or eax, edx
je 0x6f63e6
push ebx
push ebx
push ebx
push dword [esi]
call fcn.006f2bb0
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x6f60c7
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.006ebce3
add esp, 0xc
cmp eax, 0xffffffff
je 0x6f60c7
cmp eax, 2
je 0x6f638a
cmp eax, 3
jne 0x6f63d8
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x6f638a
mov byte [ebp - 2], 1
jmp 0x6f61e4
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x6f61e4
cmp eax, 2
jbe 0x6f63e6
cmp eax, 4
ja 0x6f61db
push 2
push ebx
push ebx
push dword [esi]
call fcn.006f2bb0
add esp, 0x10
or eax, edx
je 0x6f63e6
push ebx
push ebx
push ebx
push dword [esi]
call fcn.006f2bb0
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x6f61e4
jmp 0x6f60c7
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x6f63b2
push dword [esi]
call fcn.006ec3ce
pop ecx
call fcn.006e3779
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x6f6467
cmp eax, 0xfeff
jne 0x6f63d8
push ebx
push 2
push dword [esi]
call fcn.006ed7fd
add esp, 0xc
cmp eax, 0xffffffff
je 0x6f60c7
mov byte [ebp - 2], 2
jmp 0x6f61e4
push ebx
push ebx
push dword [esi]
call fcn.006ed7fd
add esp, 0xc
jmp 0x6f637c
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x6f6406
dec eax
jne 0x6f61e4
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x6f6414
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.006efcda
add esp, 0xc
cmp eax, 0xffffffff
je 0x6f643a
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x6f6414
jmp 0x6f61e4
push dword [esi]
call fcn.006ec3ce
pop ecx
call fcn.006e3779
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x6f6467
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x100cff80]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret