Function at 0x551750
Capabilities:
Encode data using xor
Hash data using murmur2

Disassembly:
push ebp
push ebx
push edi
push esi
sub esp, 0x20
mov ebx, dword [esp + 0x34]
movzx eax, byte [ebx]
test al, 1
je 0x55176c
mov ebp, dword [ebx + 8]
mov eax, dword [ebx + 4]
mov ebx, ebp
jmp 0x55176f
inc ebx
shr eax, 1
cmp eax, 4
mov ebp, eax
mov edx, ebx
mov dword [esp + 0xc], eax
mov dword [esp + 0x14], ecx
jb 0x5517c7
mov eax, dword [esp + 0xc]
mov ecx, ebx
mov esi, ebx
lea ebp, [eax - 4]
mov edx, eax
nop dword [eax]
imul ebx, dword [esi], 0x5bd1e995
imul eax, eax, 0x5bd1e995
add edx, 0xfffffffc
add esi, 4
mov edi, ebx
shr edi, 0x18
xor edi, ebx
imul edi, edi, 0x5bd1e995
xor eax, edi
cmp edx, 3
ja 0x551790
mov esi, ebp
mov ebx, ecx
and esi, 0xfffffffc
lea edx, [ecx + esi + 4]
mov ecx, dword [esp + 0x14]
sub ebp, esi
cmp ebp, 1
je 0x5517e8
cmp ebp, 2
je 0x5517df
cmp ebp, 3
jne 0x5517f3
movzx esi, byte [edx + 2]
shl esi, 0x10
xor eax, esi
movzx esi, byte [edx + 1]
shl esi, 8
xor eax, esi
movzx edx, byte [edx]
xor edx, eax
imul eax, edx, 0x5bd1e995
mov edx, eax
mov esi, dword [ecx + 4]
shr edx, 0xd
xor edx, eax
imul eax, edx, 0x5bd1e995
mov ebp, eax
shr ebp, 0xf
xor ebp, eax
test esi, esi
je 0x551823
lea edi, [esi - 1]
test edi, esi
je 0x551828
cmp ebp, esi
mov edx, ebp
jb 0x55182c
mov eax, ebp
xor edx, edx
div esi
jmp 0x55182c
jmp 0x551912
mov edx, ebp
and edx, edi
mov eax, dword [ecx]
mov dword [esp + 0x10], edx
mov eax, dword [eax + edx*4]
test eax, eax
je 0x551912
mov dword [esp + 0x18], edi
mov edi, dword [eax]
test edi, edi
je 0x551912
nop dword [eax + eax]
mov eax, dword [edi + 4]
cmp eax, ebp
je 0x551880
mov ecx, dword [esp + 0x18]
test ecx, esi
je 0x551876
cmp eax, esi
jb 0x551878
xor edx, edx
div esi
mov eax, edx
mov edx, dword [esp + 0x10]
cmp eax, edx
je 0x551880
jmp 0x551912
and eax, ecx
cmp eax, edx
jne 0x551912
movzx ecx, byte [edi + 8]
mov eax, ecx
shr eax, 1
test cl, 1
mov edx, eax
je 0x551892
mov edx, dword [edi + 0xc]
cmp edx, dword [esp + 0xc]
jne 0x551904
lea edx, [edi + 8]
inc edx
test cl, 1
je 0x5518a4
mov edx, dword [edi + 0x10]
jne 0x5518e0
cmp dword [esp + 0xc], 0
je 0x551a04
xor ecx, ecx
nop word cs:[eax + eax]
nop dword [eax]
movzx edx, byte [edi + ecx + 9]
cmp dl, byte [ebx + ecx]
jne 0x551904
inc ecx
cmp eax, ecx
jne 0x5518c0
jmp 0x551a04
mov eax, dword [esp + 0xc]
test eax, eax
je 0x551a04
mov dword [esp + 8], eax
mov dword [esp + 4], ebx
mov dword [esp], edx
call sub.msvcrt.dll_memcmp
test eax, eax
je 0x551a04
mov edi, dword [edi]
mov edx, dword [esp + 0x10]
test edi, edi
jne 0x551850
mov ebx, dword [esp + 0x38]
mov dword [esp], 0x14
call fcn.004fc150
lea ecx, [eax + 8]
mov edi, eax
mov dword [esp], ebx
call fcn.00556b50
sub esp, 4
mov ebx, dword [esp + 0x14]
mov dword [edi + 4], ebp
mov dword [edi], 0
movq xmm2, qword [0x585d20]
mov eax, dword [ebx + 0xc]
movss xmm1, dword [ebx + 0x10]
inc eax
test esi, esi
movd xmm0, eax
por xmm0, xmm2
subsd xmm0, xmm2
cvtsd2ss xmm0, xmm0
je 0x551989
movd xmm3, esi
por xmm3, xmm2
subsd xmm3, xmm2
xorps xmm2, xmm2
cvtsd2ss xmm2, xmm3
mulss xmm2, xmm1
ucomiss xmm0, xmm2
ja 0x551989
mov edx, dword [esp + 0x10]
jmp 0x551a14
lea eax, [esi + esi]
mov ebx, 1
cmp esi, 3
jb 0x5519a0
lea ecx, [esi - 1]
xor ebx, ebx
test ecx, esi
setne bl
divss xmm0, xmm1
or ebx, eax
movss dword [esp], xmm0
call fcn.0052c6f0
fstp dword [esp + 0x1c]
movss xmm1, dword [0x585d28]
movss xmm0, dword [esp + 0x1c]
movaps xmm2, xmm0
cvttss2si ecx, xmm0
subss xmm2, xmm1
cvttss2si eax, xmm2
xor eax, 0x80000000
ucomiss xmm0, xmm1
cmovae ecx, eax
cmp ebx, ecx
cmovae ecx, ebx
mov ebx, dword [esp + 0x14]
mov dword [esp], ecx
mov ecx, ebx
call fcn.00551da0
sub esp, 4
mov esi, dword [ebx + 4]
lea edx, [esi - 1]
test edx, esi
je 0x551a0a
cmp ebp, esi
jae 0x551a0e
mov edx, ebp
jmp 0x551a14
xor eax, eax
xor edx, edx
jmp 0x551a62
and edx, ebp
jmp 0x551a14
mov eax, ebp
xor edx, edx
div esi
mov ecx, dword [ebx]
mov eax, dword [ecx + edx*4]
test eax, eax
je 0x551a23
mov ecx, dword [eax]
mov dword [edi], ecx
jmp 0x551a56
mov ebp, edx
mov edx, dword [ebx + 8]
lea eax, [ebx + 8]
mov dword [edi], edx
mov dword [ebx + 8], edi
mov dword [ecx + ebp*4], eax
mov eax, dword [edi]
test eax, eax
je 0x551a58
mov eax, dword [eax + 4]
lea ecx, [esi - 1]
test ecx, esi
je 0x551a4f
cmp eax, esi
jb 0x551a51
xor edx, edx
div esi
mov eax, edx
jmp 0x551a51
and eax, ecx
shl eax, 2
add eax, dword [ebx]
mov dword [eax], edi
inc dword [ebx + 0xc]
mov edx, 1
xor eax, eax
or eax, edi
add esp, 0x20
pop esi
pop edi
pop ebx
pop ebp
ret 8