Function at 0x423380
Capabilities:
Encode data using xor

Disassembly:
push ebx
mov ebx, esp
sub esp, 8
and esp, 0xfffffff0
add esp, 4
push ebp
mov ebp, dword [ebx + 4]
mov dword [esp + 4], ebp
mov ebp, esp
sub esp, 0x28
mov eax, dword [ebx + 0x10]
mov dword [ebp - 0xc], ecx
push esi
push edi
mov edi, dword [ebx + 0xc]
test ecx, ecx
je 0x42377d
test edx, edx
je 0x42377d
mov esi, dword [ebx + 8]
test esi, esi
je 0x42377d
test edi, edi
jle 0x42377d
test eax, eax
je 0x42377d
cmp dword [ebx + 0x14], 0
je 0x42377d
cmp dword [eax], 0
jne 0x42377d
mov eax, dword [edx + 0x2c]
test eax, eax
jne 0x4234ce
mov eax, dword [ecx + 8]
push edi
call eax
mov edx, eax
add esp, 4
mov dword [ebp - 8], edx
test edx, edx
je 0x423750
xor ecx, ecx
mov dword [ebp - 0xc], ecx
cmp edi, 0x40
jb 0x423494
lea eax, [esi - 1]
mov dword [ebp - 0xc], ecx
add eax, edi
cmp edx, eax
ja 0x423426
lea eax, [edi - 1]
add eax, edx
cmp eax, esi
jae 0x423494
mov eax, edi
and eax, 0x8000003f
jns 0x423434
dec eax
or eax, 0xffffffc0
inc eax
movups xmm1, xmmword [0x4efca0]
mov dword [ebp - 0xc], edi
mov edi, esi
sub dword [ebp - 0xc], eax
sub edi, edx
mov dword [ebp - 0x10], edi
mov eax, edx
mov edi, dword [ebx + 0xc]
mov edx, dword [ebp - 0x10]
movups xmm0, xmmword [edx + eax]
lea eax, [eax + 0x40]
pandn xmm0, xmm1
movups xmmword [eax - 0x40], xmm0
movups xmm0, xmmword [esi + ecx + 0x10]
pandn xmm0, xmm1
movups xmmword [eax - 0x30], xmm0
movups xmm0, xmmword [esi + ecx + 0x20]
pandn xmm0, xmm1
movups xmmword [eax - 0x20], xmm0
movups xmm0, xmmword [esi + ecx + 0x30]
add ecx, 0x40
pandn xmm0, xmm1
movups xmmword [eax - 0x10], xmm0
cmp ecx, dword [ebp - 0xc]
jl 0x423450
mov edx, dword [ebp - 8]
mov dword [ebp - 0xc], ecx
cmp ecx, edi
jge 0x42373b
add ecx, edx
mov dword [ebp - 0x10], edi
sub esi, edx
sub edi, dword [ebp - 0xc]
mov al, byte [ecx + esi]
lea ecx, [ecx + 1]
not al
mov byte [ecx - 1], al
sub edi, 1
jne 0x4234a6
mov esi, dword [ebx + 0x10]
mov eax, dword [ebx + 0x14]
mov edi, dword [ebx + 0xc]
mov dword [esi], edx
mov dword [eax], edi
xor eax, eax
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret
cmp eax, 1
jne 0x4235d8
mov al, byte [edx + 0x30]
mov byte [ebp - 1], al
movsx eax, al
push edi
movd xmm0, eax
mov eax, dword [ecx + 8]
punpcklbw xmm0, xmm0
punpcklwd xmm0, xmm0
pshufd xmm0, xmm0, 0
movaps xmmword [ebp - 0x20], xmm0
call eax
mov edx, eax
add esp, 4
mov dword [ebp - 8], edx
test edx, edx
je 0x423750
xor ecx, ecx
mov dword [ebp - 0xc], ecx
cmp edi, 0x40
jb 0x423598
lea eax, [esi - 1]
mov dword [ebp - 0xc], ecx
add eax, edi
cmp edx, eax
ja 0x42352e
lea eax, [edi - 1]
add eax, edx
cmp eax, esi
jae 0x423598
mov eax, edi
and eax, 0x8000003f
jns 0x42353c
dec eax
or eax, 0xffffffc0
inc eax
movaps xmm1, xmmword [ebp - 0x20]
mov dword [ebp - 0xc], edi
mov edi, esi
sub dword [ebp - 0xc], eax
sub edi, edx
mov dword [ebp - 0x10], edi
mov eax, edx
mov edi, dword [ebx + 0xc]
mov edx, dword [ebp - 0x10]
movups xmm0, xmmword [edx + eax]
pxor xmm0, xmm1
movups xmmword [eax], xmm0
movups xmm0, xmmword [esi + ecx + 0x10]
pxor xmm0, xmm1
movups xmmword [eax + 0x10], xmm0
movups xmm0, xmmword [esi + ecx + 0x20]
pxor xmm0, xmm1
movups xmmword [eax + 0x20], xmm0
movups xmm0, xmmword [esi + ecx + 0x30]
add ecx, 0x40
pxor xmm0, xmm1
movups xmmword [eax + 0x30], xmm0
add eax, 0x40
cmp ecx, dword [ebp - 0xc]
jl 0x423555
mov edx, dword [ebp - 8]
mov dword [ebp - 0xc], ecx
cmp ecx, edi
jge 0x42373b
mov ah, byte [ebp - 1]
add ecx, edx
sub esi, edx
mov dword [ebp - 0x10], edi
sub edi, dword [ebp - 0xc]
nop dword [eax]
mov al, byte [ecx + esi]
lea ecx, [ecx + 1]
xor al, ah
mov byte [ecx - 1], al
sub edi, 1
jne 0x4235b0
mov esi, dword [ebx + 0x10]
mov eax, dword [ebx + 0x14]
mov edi, dword [ebx + 0xc]
mov dword [esi], edx
mov dword [eax], edi
xor eax, eax
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret
cmp eax, 2
jne 0x423703
mov al, byte [edx + 0x30]
mov byte [ebp - 1], al
movsx eax, al
push edi
movd xmm0, eax
mov eax, dword [ecx + 8]
punpcklbw xmm0, xmm0
punpcklwd xmm0, xmm0
pshufd xmm0, xmm0, 0
movups xmmword [ebp - 0x20], xmm0
call eax
mov edx, eax
add esp, 4
mov dword [ebp - 8], edx
test edx, edx
je 0x423750
xor ecx, ecx
cmp edi, 0x10
jb 0x4236b4
lea eax, [esi - 1]
add eax, edi
cmp edx, eax
ja 0x423636
lea eax, [edi - 1]
add eax, edx
cmp eax, esi
jae 0x4236b4
mov eax, edi
and eax, 0x8000000f
jns 0x423644
dec eax
or eax, 0xfffffff0
inc eax
movups xmm5, xmmword [0x4efca0]
mov dword [ebp - 0xc], edi
mov edi, esi
sub dword [ebp - 0xc], eax
xorps xmm4, xmm4
movups xmm6, xmmword [ebp - 0x20]
sub edi, edx
mov eax, edx
mov dword [ebp - 0x10], edi
mov edi, dword [ebx + 0xc]
mov edx, dword [ebp - 0x10]
nop word [eax + eax]
movups xmm3, xmmword [edx + eax]
add ecx, 0x10
lea eax, [eax + 0x10]
movaps xmm2, xmm4
pcmpeqb xmm2, xmm3
pxor xmm3, xmm6
pandn xmm2, xmm5
pand xmm3, xmm2
movaps xmm1, xmm2
movups xmm0, xmmword [eax - 0x10]
pandn xmm1, xmm0
por xmm3, xmm1
pand xmm3, xmm2
pandn xmm2, xmm4
por xmm3, xmm2
movups xmmword [eax - 0x10], xmm3
cmp ecx, dword [ebp - 0xc]
jl 0x423670
mov edx, dword [ebp - 8]
cmp ecx, edi
jge 0x42373b
lea eax, [ecx + edx]
sub esi, edx
mov edx, edi
mov dword [ebp - 0x10], eax
mov edi, eax
sub edx, ecx
mov ah, byte [ebp - 1]
nop dword [eax]
mov cl, byte [edi + esi]
lea edi, [edi + 1]
mov al, ah
xor al, cl
neg cl
sbb cl, cl
and cl, al
mov byte [edi - 1], cl
sub edx, 1
jne 0x4236d0
mov esi, dword [ebx + 0x10]
mov eax, dword [ebx + 0x14]
mov edx, dword [ebp - 8]
mov edi, dword [ebx + 0xc]
mov dword [esi], edx
mov dword [eax], edi
xor eax, eax
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret
cmp eax, 3
jne 0x423753
mov al, byte [edx + 0x30]
mov byte [ebp - 1], al
mov eax, dword [ecx + 8]
push edi
call eax
mov edx, eax
add esp, 4
test edx, edx
je 0x423750
xor ecx, ecx
test edi, edi
jle 0x42373b
mov al, byte [ecx + esi]
test al, al
je 0x423733
mov ah, byte [ebp - 1]
cmp al, ah
je 0x423733
xor al, ah
mov byte [edx + ecx], al
inc ecx
cmp ecx, edi
jl 0x423723
mov esi, dword [ebx + 0x10]
mov eax, dword [ebx + 0x14]
mov dword [esi], edx
mov dword [eax], edi
xor eax, eax
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret
mov ecx, dword [ebp - 0xc]
mov esi, dword [ebx + 0x10]
mov eax, dword [ecx + 0xc]
push dword [esi]
call eax
mov eax, dword [ebx + 0x14]
add esp, 4
mov dword [esi], 0
mov dword [eax], 0
mov eax, 0xfffffffd
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret
pop edi
or eax, 0xffffffff
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret