Function at 0x678de100
Capabilities:
Encode data using xor
Hash data using fnv

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x6793f7a5
mov eax, dword fs:[0]
push eax
sub esp, 0x24
push ebx
push esi
push edi
mov eax, dword [0x67ad7034]
xor eax, ebp
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov edi, ecx
mov dword [ebp - 0x10], edi
mov edx, dword [ebp + 0xc]
mov ebx, dword [ebp + 8]
mov dword [ebp - 0x24], edx
mov dword [ebp - 0x14], edx
cmp dword [edx + 0x14], 0x10
jb 0x678de144
mov eax, dword [edx]
mov dword [ebp - 0x14], eax
xor ecx, ecx
mov esi, 0x811c9dc5
cmp dword [edx + 0x10], ecx
jbe 0x678de168
mov edi, dword [ebp - 0x14]
movzx eax, byte [ecx + edi]
inc ecx
xor eax, esi
imul esi, eax, 0x1000193
cmp ecx, dword [edx + 0x10]
jb 0x678de153
mov edi, dword [ebp - 0x10]
push esi
push edx
lea eax, [ebp - 0x20]
mov ecx, edi
push eax
call fcn.678ddd90
mov eax, dword [ebp - 0x1c]
test eax, eax
je 0x678de187
mov dword [ebx], eax
mov byte [ebx + 4], 0
jmp 0x678de2ef
cmp dword [edi + 8], 0x4924924
jne 0x678de19b
push 0x67ac4230
call dword [sym.imp.msvcp140.dll_void___cdecl_std::_Xlength_error_char_const__]
lea eax, [edi + 4]
mov dword [ebp - 0x2c], eax
mov dword [ebp - 4], 0
push 0x38
mov dword [ebp - 0x28], 0
call fcn.67934403
add esp, 4
mov edi, eax
mov dword [ebp - 0x28], edi
push dword [ebp - 0x24]
lea ecx, [edi + 8]
call fcn.677d84b0
mov dword [edi + 0x20], 0
mov dword [edi + 0x30], 0
mov dword [edi + 0x34], 0xf
mov edx, dword [ebp - 0x10]
mov dword [ebp - 4], 3
mov eax, dword [edx + 8]
inc eax
movss xmm3, dword [edx]
movd xmm0, eax
cvtdq2pd xmm0, xmm0
shr eax, 0x1f
addsd xmm0, qword [eax*8 + 0x67ac5420]
mov eax, dword [edx + 0x1c]
mov dword [ebp - 0x24], eax
cvtpd2ps xmm2, xmm0
movd xmm0, eax
cvtdq2pd xmm0, xmm0
shr eax, 0x1f
movaps xmm1, xmm2
addsd xmm0, qword [eax*8 + 0x67ac5420]
cvtpd2ps xmm0, xmm0
divss xmm1, xmm0
comiss xmm1, xmm3
jbe 0x678de2a2
divss xmm2, xmm3
sub esp, 8
cvtps2pd xmm0, xmm2
movsd qword [ebp - 0x20], xmm0
fld qword [ebp - 0x20]
fstp qword [esp]
call sub.ucrtbase.dll_ceil
fstp qword [ebp - 0x20]
movsd xmm0, qword [ebp - 0x20]
add esp, 8
cvtpd2ps xmm0, xmm0
call fcn.679353b0
mov ecx, 8
cmp eax, ecx
cmova ecx, eax
mov eax, dword [ebp - 0x24]
cmp eax, ecx
jae 0x678de281
cmp eax, 0x200
jae 0x678de27f
shl eax, 3
cmp eax, ecx
jae 0x678de281
mov eax, ecx
mov ecx, dword [ebp - 0x10]
push eax
call fcn.678dd860
mov ecx, dword [ebp - 0x10]
lea eax, [edi + 8]
push esi
push eax
lea eax, [ebp - 0x20]
push eax
call fcn.678ddd90
mov edx, dword [ebp - 0x10]
mov ecx, dword [eax]
jmp 0x678de2a5
mov ecx, dword [ebp - 0x20]
mov eax, dword [ecx + 4]
inc dword [edx + 8]
mov dword [edi + 4], eax
mov dword [edi], ecx
mov dword [eax], edi
mov dword [ecx + 4], edi
mov dword [ebp - 0x10], eax
mov eax, dword [edx + 0x18]
and eax, esi
mov dword [ebp - 0x14], ecx
mov ecx, dword [edx + 0xc]
mov esi, dword [ebp - 0x2c]
mov edx, dword [ecx + eax*8]
cmp edx, dword [esi]
jne 0x678de2d2
mov dword [ecx + eax*8], edi
jmp 0x678de2e5
cmp edx, dword [ebp - 0x14]
jne 0x678de2dc
mov dword [ecx + eax*8], edi
jmp 0x678de2e9
mov edx, dword [ebp - 0x10]
cmp dword [ecx + eax*8 + 4], edx
jne 0x678de2e9
mov dword [ecx + eax*8 + 4], edi
mov dword [ebx], edi
mov byte [ebx + 4], 1
mov eax, ebx
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret 8