Function at 0x678dd270
Capabilities:
Encode data using xor
Hash data using fnv

Disassembly:
push ebx
mov ebx, esp
sub esp, 8
and esp, 0xfffffff8
add esp, 4
push ebp
mov ebp, dword [ebx + 4]
mov dword [esp + 4], ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x6793f65d
mov eax, dword fs:[0]
push eax
push ebx
sub esp, 0x28
push esi
push edi
mov eax, dword [0x67ad7034]
xor eax, ebp
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov edx, ecx
mov dword [ebp - 0x14], edx
mov eax, dword [ebx + 0xc]
mov edi, dword [ebx + 8]
mov dword [ebp - 0x24], edi
mov dword [ebp - 0x18], eax
cmp dword [eax + 0x14], 0x10
mov ecx, dword [eax + 0x10]
mov dword [ebp - 0x28], ecx
mov dword [ebp - 0x1c], eax
jb 0x678dd2d0
mov ecx, dword [eax]
mov dword [ebp - 0x1c], ecx
xor ecx, ecx
mov esi, 0x811c9dc5
cmp dword [eax + 0x10], ecx
jbe 0x678dd2fc
mov edi, dword [ebp - 0x1c]
mov edx, dword [ebp - 0x28]
movzx eax, byte [ecx + edi]
inc ecx
xor eax, esi
imul esi, eax, 0x1000193
cmp ecx, edx
jb 0x678dd2e2
mov edi, dword [ebp - 0x24]
mov edx, dword [ebp - 0x14]
mov eax, dword [ebp - 0x18]
push esi
push eax
lea eax, [ebp - 0x20]
mov ecx, edx
push eax
call fcn.678ddd90
mov eax, dword [ebp - 0x1c]
test eax, eax
je 0x678dd31d
mov dword [edi], eax
mov eax, edi
mov byte [edi + 4], 0
jmp 0x678dd45e
mov ecx, dword [ebp - 0x14]
cmp dword [ecx + 8], 0x3ffffff
jne 0x678dd334
push 0x67ac4230
call dword [sym.imp.msvcp140.dll_void___cdecl_std::_Xlength_error_char_const__]
lea eax, [ecx + 4]
mov dword [ebp - 0x34], eax
mov dword [ebp - 4], 0
push 0x40
mov dword [ebp - 0x30], 0
call fcn.67934403
mov edi, eax
add esp, 4
mov eax, dword [ebp - 0x18]
lea ecx, [edi + 8]
mov dword [ecx], 0
mov dword [ecx + 0x10], 0
mov dword [ecx + 0x14], 0
movups xmm0, xmmword [eax]
mov dword [ebp - 0x30], edi
mov dword [ebp - 0x28], ecx
movups xmmword [ecx], xmm0
movq xmm0, qword [eax + 0x10]
movq qword [ecx + 0x10], xmm0
mov dword [eax + 0x10], 0
mov dword [eax + 0x14], 0xf
mov byte [eax], 0
add ecx, 0x18
mov byte [ebp - 4], 6
call fcn.678dea80
mov ecx, dword [ebp - 0x14]
mov dword [ebp - 4], 7
mov eax, dword [ecx + 8]
inc eax
movd xmm0, eax
cvtdq2pd xmm0, xmm0
shr eax, 0x1f
addsd xmm0, qword [eax*8 + 0x67ac5420]
mov eax, dword [ecx + 0x1c]
cvtpd2ps xmm1, xmm0
movd xmm0, eax
cvtdq2pd xmm0, xmm0
shr eax, 0x1f
addsd xmm0, qword [eax*8 + 0x67ac5420]
cvtpd2ps xmm0, xmm0
divss xmm1, xmm0
comiss xmm1, dword [ecx]
jbe 0x678dd40e
call fcn.678dd7d0
mov ecx, dword [ebp - 0x14]
lea eax, [edi + 8]
push esi
push eax
lea eax, [ebp - 0x2c]
push eax
call fcn.678ddd90
mov ecx, dword [ebp - 0x14]
mov edx, dword [eax]
mov eax, dword [eax + 4]
mov dword [ebp - 0x1c], eax
jmp 0x678dd411
mov edx, dword [ebp - 0x20]
mov eax, dword [edx + 4]
inc dword [ecx + 8]
mov dword [edi + 4], eax
mov dword [edi], edx
mov dword [eax], edi
mov dword [edx + 4], edi
mov dword [ebp - 0x1c], eax
mov eax, dword [ecx + 0x18]
and eax, esi
mov dword [ebp - 0x18], edx
mov edx, dword [ecx + 0xc]
mov esi, dword [ebp - 0x34]
mov ecx, dword [edx + eax*8]
cmp ecx, dword [esi]
jne 0x678dd43e
mov dword [edx + eax*8], edi
jmp 0x678dd451
cmp ecx, dword [ebp - 0x18]
jne 0x678dd448
mov dword [edx + eax*8], edi
jmp 0x678dd455
mov ecx, dword [ebp - 0x1c]
cmp dword [edx + eax*8 + 4], ecx
jne 0x678dd455
mov dword [edx + eax*8 + 4], edi
mov eax, dword [ebp - 0x24]
mov dword [eax], edi
mov byte [eax + 4], 1
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret 8