Function at 0x1bbc30
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
push ebx
push edi
push esi
and esp, 0xfffffff8
sub esp, 0x30
mov dword [esp + 0x18], 0xb2b5b4b7
mov dword [esp + 0x1c], 0
mov byte [esp + 0x20], 0
mov dword [esp], 0
mov eax, dword [esp]
cmp eax, 8
ja 0x1bbca5
mov eax, dword [esp]
mov ecx, dword [esp]
movzx ecx, byte [esp + ecx + 0x18]
lea edx, [eax + ecx]
add edx, 0x2eec1bb9
add eax, 0xb9
and eax, ecx
add eax, eax
mov ecx, eax
xor ecx, edx
not eax
and eax, edx
add eax, eax
sub eax, ecx
mov dword [esp + 0x14], eax
mov eax, dword [esp + 0x14]
add al, 0xf1
mov ecx, dword [esp]
mov byte [esp + ecx + 0x18], al
inc dword [esp]
mov eax, dword [esp]
cmp eax, 9
jb 0x1bbc60
mov esi, dword [esp + 0x18]
mov eax, dword [0x1c91d8]
test eax, eax
je 0x1bbcfc
xor ecx, ecx
mov edx, dword [0x1c91dc]
nop
nop
nop
nop
nop
nop
cmp dword [edx + ecx*8], 0x2286b4e
je 0x1bbcd0
inc ecx
cmp eax, ecx
jne 0x1bbcc0
jmp 0x1bbcfc
mov eax, dword [edx + ecx*8 + 4]
cmp eax, esi
je 0x1bbcfc
lea ecx, [esp + 0x10]
push ecx
push 0
push 0
push 1
push dword [ebp + 0xc]
push dword [ebp + 8]
push 6
push dword [0x1c91e0]
push eax
call fcn.001b8180
add esp, 0x24
mov esi, eax
cmp esi, 0xc0000023
jne 0x1bbf5f
push dword [esp + 0x10]
call fcn.001b5f70
add esp, 4
mov ebx, eax
mov eax, dword [esp + 0x10]
mov dword [esp + 0x18], 0xb2b5b4b7
mov dword [esp + 0x1c], 0
mov byte [esp + 0x20], 0
mov dword [esp], 0
mov ecx, dword [esp]
cmp ecx, 8
ja 0x1bbd87
nop
nop
mov ecx, dword [esp]
mov edx, dword [esp]
movzx edx, byte [esp + edx + 0x18]
lea esi, [ecx + edx]
add esi, 0x2eec1bb9
add ecx, 0xb9
and ecx, edx
add ecx, ecx
mov edx, ecx
xor edx, esi
not ecx
and ecx, esi
add ecx, ecx
sub ecx, edx
mov dword [esp + 0x14], ecx
mov ecx, dword [esp + 0x14]
add cl, 0xf1
mov edx, dword [esp]
mov byte [esp + edx + 0x18], cl
inc dword [esp]
mov ecx, dword [esp]
cmp ecx, 9
jb 0x1bbd40
mov esi, dword [esp + 0x18]
mov ecx, dword [0x1c91d8]
test ecx, ecx
je 0x1bbdde
mov edi, esi
xor edx, edx
mov esi, dword [0x1c91dc]
nop
cmp dword [esi + edx*8], 0x2286b4e
je 0x1bbdb2
inc edx
cmp ecx, edx
jne 0x1bbda0
mov esi, edi
jmp 0x1bbdde
mov ecx, dword [esi + edx*8 + 4]
mov esi, edi
cmp ecx, edi
je 0x1bbdde
lea edx, [esp + 0x10]
push edx
push eax
push ebx
push 1
push dword [ebp + 0xc]
push dword [ebp + 8]
push 6
push dword [0x1c91e0]
push ecx
call fcn.001b8180
add esp, 0x24
mov esi, eax
test esi, esi
js 0x1bbf56
mov ecx, dword [ebp + 0x18]
mov edi, dword [ebp + 0x14]
test edi, edi
je 0x1bbedc
mov edx, dword [ebp + 0x10]
test edx, edx
je 0x1bbed5
mov eax, dword [ebx + 0x10]
shr eax, 1
mov edi, dword [edi]
cmp edi, eax
jb 0x1bbe0c
mov edi, eax
test edi, edi
je 0x1bbecd
mov eax, edi
mov edi, ebx
add edi, 0x14
mov dword [esp + 0xc], eax
and eax, 3
mov dword [esp + 4], ebx
mov dword [esp + 8], esi
je 0x1bbe63
xor esi, esi
nop
nop
movzx ecx, word [edi]
xor ebx, ebx
test cx, cx
setne bl
lea edi, [edi + ebx*2]
mov word [edx], cx
add edx, 2
inc esi
cmp eax, esi
jne 0x1bbe30
mov eax, dword [esp + 0xc]
sub eax, esi
mov ebx, dword [esp + 4]
mov esi, dword [esp + 8]
mov ecx, dword [ebp + 0x18]
cmp dword [esp + 0xc], 4
jae 0x1bbe70
jmp 0x1bbecd
mov eax, dword [esp + 0xc]
cmp dword [esp + 0xc], 4
jb 0x1bbecd
nop
nop
movzx ecx, word [edi]
xor ebx, ebx
test cx, cx
setne bl
mov word [edx], cx
lea ecx, [edi + ebx*2]
movzx esi, word [edi + ebx*2]
xor ebx, ebx
test si, si
setne bl
mov word [edx + 2], si
lea esi, [ecx + ebx*2]
movzx ecx, word [ecx + ebx*2]
xor ebx, ebx
test cx, cx
setne bl
mov word [edx + 4], cx
lea ecx, [esi + ebx*2]
movzx esi, word [esi + ebx*2]
xor ebx, ebx
test si, si
setne bl
lea edi, [ecx + ebx*2]
mov word [edx + 6], si
add edx, 8
add eax, 0xfffffffc
jne 0x1bbe70
mov ebx, dword [esp + 4]
mov esi, dword [esp + 8]
mov ecx, dword [ebp + 0x18]
mov word [edx], 0
mov edi, dword [ebp + 0x14]
mov eax, dword [ebx + 0x10]
shr eax, 1
mov dword [edi], eax
mov edi, dword [ebp + 0x20]
test ecx, ecx
je 0x1bbee8
mov eax, dword [ebx + 4]
mov dword [ecx], eax
test edi, edi
je 0x1bbf56
mov dword [esp + 4], ebx
mov dword [esp + 8], esi
mov ebx, dword [ebp + 0x1c]
test ebx, ebx
je 0x1bbf49
mov edx, dword [edi]
mov eax, dword [esp + 4]
mov eax, dword [eax + 0xc]
cmp edx, eax
jb 0x1bbf0a
mov edx, eax
mov ecx, dword [esp + 4]
mov eax, dword [ecx + 8]
add eax, ecx
mov ecx, edx
shr ecx, 2
mov esi, edx
and esi, 0xfffffffc
mov edi, ebx
add ebx, esi
add esi, eax
xchg esi, eax
rep movsd dword es:[edi], dword [esi]
xchg esi, eax
mov ecx, edx
shr ecx, 1
and ecx, 1
mov eax, esi
mov edi, ebx
xchg esi, eax
rep movsw word es:[edi], word [esi]
xchg esi, eax
test dl, 1
mov edi, dword [ebp + 0x20]
je 0x1bbf49
and edx, 2
movzx eax, byte [esi + edx]
mov byte [ebx + edx], al
mov ebx, dword [esp + 4]
mov eax, dword [ebx + 0xc]
mov dword [edi], eax
mov esi, dword [esp + 8]
push ebx
call fcn.001b60c0
add esp, 4
mov eax, esi
lea esp, [ebp - 0xc]
pop esi
pop edi
pop ebx
pop ebp
ret