Function at 0x100257e0
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
push ebp
mov ebp, esp
sub esp, 0xc
mov eax, dword [0x1009f1f4]
xor eax, ebp
mov dword [ebp - 4], eax
push ebx
mov ebx, dword [ebp + 8]
push esi
mov esi, ecx
push edi
mov edi, dword [ebp + 0xc]
cmp dword [esi + 0x10], 0
jne 0x100259c5
test edi, edi
je 0x100259c5
mov ecx, dword [esi + 0x20]
mov eax, 0x532ae21d
sub ecx, dword [esi + 0x1c]
imul ecx
sar edx, 8
mov eax, edx
shr eax, 0x1f
add eax, edx
cmp ebx, eax
jae 0x100259c5
imul eax, ebx, 0x314
mov ebx, dword [esi + 0x1c]
mov ebx, dword [eax + ebx]
test byte [ebx + 0x26], 0x10
jne 0x100259c5
mov eax, dword [ebp + 0x10]
cmp dword [ebx + 0x18], eax
ja 0x100259c5
mov esi, dword [esi + 0xc]
mov edx, dword [ebx + 0x2a]
movzx eax, word [edx + esi + 0x1c]
movzx ecx, word [edx + esi + 0x1a]
add eax, edx
add ecx, eax
lea eax, [esi + 0x1e]
add eax, ecx
movzx ecx, word [ebx + 0xa]
mov dword [ebp - 8], eax
test cx, cx
jne 0x100259da
mov esi, dword [ebp + 0x10]
mov ecx, dword [ebx + 0x14]
mov dword [ebp - 0xc], ecx
test esi, esi
je 0x100258cd
test eax, eax
je 0x10025899
cmp ecx, esi
jb 0x10025899
push esi
push eax
push edi
call fcn.10049af0
add esp, 0xc
jmp 0x100258cd
push ecx
push 0
push edi
call fcn.1004a5f0
add esp, 0xc
cmp dword [ebp - 8], 0
jne 0x100258b8
call fcn.1004dc05
mov dword [eax], 0x16
jmp 0x100258c8
cmp dword [ebp - 0xc], esi
jae 0x100258cd
call fcn.1004dc05
mov dword [eax], 0x22
call fcn.1004da99
mov edx, dword [ebx + 0x14]
test edx, edx
je 0x100259be
or eax, 0xffffffff
cmp edx, 8
jb 0x10025996
mov esi, edx
shr esi, 3
nop dword [eax]
movzx ecx, byte [edi]
sub edx, 8
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x10083870]
movzx ecx, byte [edi + 1]
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x10083870]
movzx ecx, byte [edi + 2]
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x10083870]
movzx ecx, byte [edi + 3]
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x10083870]
movzx ecx, byte [edi + 4]
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x10083870]
movzx ecx, byte [edi + 5]
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x10083870]
movzx ecx, byte [edi + 6]
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x10083870]
movzx ecx, byte [edi + 7]
add edi, 8
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x10083870]
sub esi, 1
jne 0x100258f0
test edx, edx
je 0x100259ba
nop word [eax + eax]
movzx ecx, byte [edi]
lea edi, [edi + 1]
xor ecx, eax
shr eax, 8
movzx ecx, cl
xor eax, dword [ecx*4 + 0x10083870]
sub edx, 1
jne 0x100259a0
not eax
jmp 0x100259c0
xor eax, eax
cmp eax, dword [ebx + 0x10]
je 0x10025a06
pop edi
pop esi
xor eax, eax
pop ebx
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.1002894c
mov esp, ebp
pop ebp
ret 0xc
cmp ecx, 8
jne 0x100259c5
lea ecx, [ebp - 8]
mov dword [ebp - 8], 0
push ecx
push dword [ebp + 0x10]
push edi
push dword [ebx + 0x14]
push eax
call fcn.10028400
add esp, 0x14
test eax, eax
je 0x100259c5
mov eax, dword [ebp - 8]
cmp eax, dword [ebx + 0x10]
jne 0x100259c5
mov ecx, dword [ebp - 4]
mov eax, 1
pop edi
pop esi
xor ecx, ebp
pop ebx
call fcn.1002894c
mov esp, ebp
pop ebp
ret 0xc