Function at 0x1800fac90
Capabilities:
Encode data using xor
Hash data using fnv

Disassembly:
mov qword [rsp + 0x18], rbx
mov qword [rsp + 0x10], rdx
push rbp
push rsi
push rdi
push r12
push r13
push r14
push r15
sub rsp, 0x80
mov r15, rdx
mov r14, rcx
mov r8, rdx
cmp qword [rdx + 0x18], 0xf
jbe 0x1800facbf
mov r8, qword [rdx]
mov ebp, 0x811c9dc5
mov rcx, 0xffffffffffffffff
nop dword [rax + rax]
inc rcx
cmp byte [r8 + rcx], 0
jne 0x1800facd0
xor edx, edx
test rcx, rcx
je 0x1800fad05
nop dword [rax]
nop word [rax + rax]
movsx eax, byte [r8 + rdx]
xor eax, ebp
imul ebp, eax, 0x1000193
inc rdx
cmp rdx, rcx
jb 0x1800facf0
mov rax, qword [r14]
mov rsi, qword [rax + 0x40]
mov r12, qword [rax + 0x48]
cmp rsi, r12
je 0x1800fb039
lea r13, [0x180000000]
mov r8, rsi
lea rdx, [rsp + 0x20]
mov rcx, qword [r14]
call fcn.1800fda10
mov rbx, qword [rax]
lea r8, [rbx + 0x50]
cmp qword [r8 + 0x18], 0xf
jbe 0x1800fad41
mov r8, qword [r8]
mov rcx, 0xffffffffffffffff
mov r9d, 0x811c9dc5
nop
inc rcx
cmp byte [r8 + rcx], 0
jne 0x1800fad50
xor edx, edx
test rcx, rcx
je 0x1800fad78
movsx eax, byte [r8 + rdx]
xor eax, r9d
imul r9d, eax, 0x1000193
inc rdx
cmp rdx, rcx
jb 0x1800fad61
cmp ebp, r9d
jne 0x1800fb02c
mov ecx, dword [rbx + 0x30]
test ecx, ecx
je 0x1800fae9d
sub ecx, 1
je 0x1800fadca
cmp ecx, 1
jne 0x1800fafd6
mov rcx, qword [r14 + 0x10]
mov rcx, qword [rcx]
call fcn.1801ced70
mov edx, dword [rbx + 0x34]
inc edx
cmp edx, eax
sete cl
mov byte [rbx + 0x3d], cl
cmp byte [rbx + 0x3c], 0
je 0x1800fafd6
cmp edx, eax
setne al
mov byte [rbx + 0x3d], al
jmp 0x1800fafd6
mov rax, qword [r14 + 8]
mov rcx, qword [rax]
test rcx, rcx
je 0x1800faddf
call fcn.1800cb8d0
mov edx, dword [rax]
jmp 0x1800fade1
xor edx, edx
movsxd rax, dword [rbx + 0x34]
cmp eax, 8
ja case.default.0x1800fadf9
mov ecx, dword [r13 + rax*4 + 0xfb064]
add rcx, r13
jmp rcx
cmp edx, 1
sete al
mov byte [rbx + 0x3d], al
cmp byte [rbx + 0x3c], 0
jmp 0x1800fafc5
cmp edx, 3
sete al
mov byte [rbx + 0x3d], al
cmp byte [rbx + 0x3c], 0
jmp 0x1800fafc5
cmp edx, 7
sete al
mov byte [rbx + 0x3d], al
cmp byte [rbx + 0x3c], 0
jmp 0x1800fafc5
cmp edx, 4
sete al
mov byte [rbx + 0x3d], al
cmp byte [rbx + 0x3c], 0
jmp 0x1800fafc5
cmp edx, 6
sete al
mov byte [rbx + 0x3d], al
cmp byte [rbx + 0x3c], 0
jmp 0x1800fafc5
cmp edx, 9
sete al
mov byte [rbx + 0x3d], al
cmp byte [rbx + 0x3c], 0
jmp 0x1800fafc5
cmp edx, 5
sete al
mov byte [rbx + 0x3d], al
cmp byte [rbx + 0x3c], 0
jmp 0x1800fafc5
cmp edx, 2
sete al
mov byte [rbx + 0x3d], al
cmp byte [rbx + 0x3c], 0
jmp 0x1800fafc5
cmp edx, 8
sete al
mov byte [rbx + 0x3d], al
cmp byte [rbx + 0x3c], 0
jmp 0x1800fafc5
xor dil, dil
mov ecx, dword [rbx + 0x34]
test ecx, ecx
je 0x1800faf3b
sub ecx, 1
je 0x1800faefa
cmp ecx, 1
jne 0x1800faf79
lea rdi, [rbx + 0x40]
mov edx, dword [rbx + 0x38]
mov dword [rsp + 0xc0], edx
test rdi, rdi
jne 0x1800faeec
lea r8, [rsp + 0xc0]
lea rdx, [rsp + 0x30]
call fcn.1801d1270
mov rdi, qword [rax]
add rdi, 0x18
mov edx, dword [rsp + 0xc0]
mov r8, rdi
call fcn.1801d1120
movzx edi, byte [rdi + 2]
jmp 0x1800faf79
lea rdi, [rbx + 0x40]
mov edx, dword [rbx + 0x38]
mov dword [rsp + 0xc0], edx
test rdi, rdi
jne 0x1800faf2d
lea r8, [rsp + 0xc0]
lea rdx, [rsp + 0x40]
call fcn.1801d1270
mov rdi, qword [rax]
add rdi, 0x18
mov edx, dword [rsp + 0xc0]
mov r8, rdi
call fcn.1801d1120
movzx edi, byte [rdi + 1]
jmp 0x1800faf79
lea rdi, [rbx + 0x40]
mov edx, dword [rbx + 0x38]
mov dword [rsp + 0xc0], edx
test rdi, rdi
jne 0x1800faf6e
lea r8, [rsp + 0xc0]
lea rdx, [rsp + 0x50]
call fcn.1801d1270
mov rdi, qword [rax]
add rdi, 0x18
mov edx, dword [rsp + 0xc0]
mov r8, rdi
call fcn.1801d1120
movzx edi, byte [rdi]
mov rcx, qword [0x18028c788]
mov rax, qword [rcx]
call qword [rax + 0x10]
test al, al
jne 0x1800fafa7
mov rcx, qword [0x18028c7d8]
mov rax, qword [rcx]
call qword [rax + 0x1a8]
test al, al
jne 0x1800fafa7
test dil, dil
je 0x1800fafa7
mov dl, 1
jmp 0x1800fafa9
xor dl, dl
cmp byte [rbx + 0x3c], 0
je 0x1800fafb2
xor dl, 1
mov ecx, dword [rbx + 0x34]
test ecx, ecx
je 0x1800fafd3
sub ecx, 1
je 0x1800fafc3
cmp ecx, 1
jne 0x1800fafd6
test dl, dl
je 0x1800fafd6
cmp byte [rbx + 0x3d], 0
sete al
mov byte [rbx + 0x3d], al
jmp 0x1800fafd6
mov byte [rbx + 0x3d], dl
cmp byte [rbx + 0x3d], 0
je 0x1800fb02c
mov rdx, rsi
lea rcx, [rsp + 0x60]
call fcn.1800a32e0
mov rdx, rax
call fcn.1800fa0d0
mov rbx, qword [r14 + 0x20]
mov rdx, rsi
lea rcx, [rsp + 0x60]
call fcn.1800a32e0
mov rdi, rax
mov qword [rsp + 0xc0], rax
mov rcx, qword [rbx + 0x38]
test rcx, rcx
je 0x1800fb05b
mov rdx, qword [rcx]
mov r8, qword [rdx + 0x10]
mov rdx, rax
call r8
nop
mov rcx, rdi
call fcn.1800a3670
add rsi, 0x20
cmp rsi, r12
jne 0x1800fad20
mov rcx, r15
mov rbx, qword [rsp + 0xd0]
add rsp, 0x80
pop r15
pop r14
pop r13
pop r12
pop rdi
pop rsi
pop rbp
jmp fcn.1800a3670
call qword [sym.imp.MSVCP140.dll_void___cdecl_std::_Xbad_function_call_void_]
nop
nop
sti
lodsd eax, dword [rsi]
str word [0x19f0fc01b]
scasb al, byte [rdi]
invalid