Function at 0x18005e6d0
Capabilities:
Encode data using xor
Hash data using fnv
Validate payment card number using luhn algorithm

Disassembly:
mov qword [rsp + 8], rbx
mov qword [rsp + 0x18], rsi
mov qword [rsp + 0x20], rdi
push rbp
push r12
push r13
push r14
push r15
lea rbp, [rsp - 0x1e0]
sub rsp, 0x2e0
mov rax, qword [0x1800a6040]
xor rax, rsp
mov qword [rbp + 0x1d0], rax
mov rbx, rdx
xor esi, esi
mov dword [rsp + 0x20], esi
call fcn.18005edb0
xor edx, edx
mov r8d, 0x110
lea rcx, [rbp - 0x30]
call sub.VCRUNTIME140.dll_memset
cmp qword [rbx + 0x18], 0xf
jbe 0x18005e731
mov rbx, qword [rbx]
lea r13, [0x180000000]
lea rax, [r13 + 0x98bd8]
mov qword [rbp - 0x30], rax
lea rcx, [rbp + 0x80]
call qword [sym.imp.MSVCP140.dll_protected:_void___cdecl_std::basic_ios_char__struct_std::char_traits_char__::constructor_void____ptr64]
nop
mov edi, 4
mov dword [rsp + 0x20], edi
xor r9d, r9d
xor r8d, r8d
lea rdx, [rbp - 0x20]
lea rcx, [rbp - 0x30]
call qword [sym.imp.MSVCP140.dll_public:_void___cdecl_std::basic_istream_char__struct_std::char_traits_char__::constructor_class_std::basic_streambuf_char__struct_std::char_traits_char______ptr64__bool____ptr64]
nop
mov rax, qword [rbp - 0x30]
movsxd rcx, dword [rax + 4]
lea r12, vtable.std::basic_ifstream_char__struct_std::char_traits_char__.0
mov qword [rbp + rcx - 0x30], r12
mov rax, qword [rbp - 0x30]
movsxd rcx, dword [rax + 4]
lea edx, [rcx - 0xb0]
mov dword [rbp + rcx - 0x34], edx
lea rcx, [rbp - 0x20]
call qword [sym.imp.MSVCP140.dll_protected:_void___cdecl_std::basic_streambuf_char__struct_std::char_traits_char__::constructor_void____ptr64]
lea rax, vtable.std::basic_filebuf_char__struct_std::char_traits_char__.0
mov qword [rbp - 0x20], rax
mov byte [rbp + 0x5c], 0
mov byte [rbp + 0x51], 0
lea rcx, [rbp - 0x20]
call qword [sym.imp.MSVCP140.dll_protected:_void___cdecl_std::basic_streambuf_char__struct_std::char_traits_char__::_Init_void____ptr64]
mov qword [rbp + 0x60], rsi
mov rax, qword [0x1800d2a60]
mov qword [rbp + 0x54], rax
mov qword [rbp + 0x48], rsi
mov r8d, 1
mov rdx, rbx
lea rcx, [rbp - 0x20]
call fcn.180063240
test rax, rax
jne 0x18005e804
mov rax, qword [rbp - 0x30]
movsxd rcx, dword [rax + 4]
lea rax, [rbp - 0x30]
add rcx, rax
xor r8d, r8d
mov edx, 2
call qword [sym.imp.MSVCP140.dll_public:_void___cdecl_std::basic_ios_char__struct_std::char_traits_char__::setstate_int__bool____ptr64]
nop
mov rax, qword [rbp - 0x30]
movsxd rcx, dword [rax + 4]
mov qword [rbp + rcx - 0x30], r12
mov rax, qword [rbp - 0x30]
movsxd rcx, dword [rax + 4]
lea edx, [rcx - 0xb0]
mov dword [rbp + rcx - 0x34], edx
cmp qword [rbp + 0x60], 0
je 0x18005ed2b
xorps xmm0, xmm0
movups xmmword [rbp - 0x70], xmm0
mov qword [rbp - 0x60], rsi
mov qword [rbp - 0x58], 0xf
mov byte [rbp - 0x70], 0
mov rax, qword [rbp - 0x30]
movsxd rcx, dword [rax + 4]
lea rax, [rbp - 0x30]
add rcx, rax
mov dl, 0xa
call qword [sym.imp.MSVCP140.dll_public:_char___cdecl_std::basic_ios_char__struct_std::char_traits_char__::widen_char_const___ptr64]
movzx r8d, al
lea rdx, [rbp - 0x70]
lea rcx, [rbp - 0x30]
call fcn.180047ca0
mov rcx, qword [rax]
movsxd rcx, dword [rcx + 4]
add rcx, rax
call qword [sym.imp.MSVCP140.dll_public:_bool___cdecl_std::ios_base::operator_bool_void_const___ptr64]
test al, al
je 0x18005eca8
lea rax, [rbp + 0xf0]
mov qword [rsp + 0x48], rax
lea r15, vtable.std::basic_istringstream_char__struct_std::char_traits_char___class_std::allocator_char__.0
movabs rbx, 0x100000001b3
movabs r14, 0xcbf29ce484222325
nop dword [rax]
xor edx, edx
mov r8d, 0xf0
lea rcx, [rbp + 0xe0]
call sub.VCRUNTIME140.dll_memset
lea rax, [r13 + 0x98bf8]
mov qword [rbp + 0xe0], rax
lea rcx, [rbp + 0x170]
call qword [sym.imp.MSVCP140.dll_protected:_void___cdecl_std::basic_ios_char__struct_std::char_traits_char__::constructor_void____ptr64]
nop
or edi, 1
mov dword [rsp + 0x20], edi
xor r9d, r9d
xor r8d, r8d
lea rdx, [rbp + 0xf0]
lea rcx, [rbp + 0xe0]
call qword [sym.imp.MSVCP140.dll_public:_void___cdecl_std::basic_istream_char__struct_std::char_traits_char__::constructor_class_std::basic_streambuf_char__struct_std::char_traits_char______ptr64__bool____ptr64]
nop
mov rax, qword [rbp + 0xe0]
movsxd rcx, dword [rax + 4]
mov qword [rbp + rcx + 0xe0], r15
mov rax, qword [rbp + 0xe0]
movsxd rcx, dword [rax + 4]
lea edx, [rcx - 0x90]
mov dword [rbp + rcx + 0xdc], edx
lea rcx, [rbp + 0xf0]
call qword [sym.imp.MSVCP140.dll_protected:_void___cdecl_std::basic_streambuf_char__struct_std::char_traits_char__::constructor_void____ptr64]
nop
lea rax, vtable.std::basic_stringbuf_char__struct_std::char_traits_char___class_std::allocator_char__.0
mov qword [rbp + 0xf0], rax
lea rdx, [rbp - 0x70]
cmp qword [rbp - 0x58], 0xf
cmova rdx, qword [rbp - 0x70]
mov r9d, 2
mov r8, qword [rbp - 0x60]
lea rcx, [rbp + 0xf0]
call fcn.180047490
nop
xorps xmm0, xmm0
movups xmmword [rsp + 0x70], xmm0
mov qword [rbp - 0x80], rsi
mov qword [rbp - 0x78], 0xf
mov byte [rsp + 0x70], 0
movups xmmword [rbp - 0x50], xmm0
mov qword [rbp - 0x40], rsi
mov qword [rbp - 0x38], 0xf
mov byte [rbp - 0x50], 0
lea rdx, [rsp + 0x70]
lea rcx, [rbp + 0xe0]
call fcn.1800636d0
mov rcx, rax
lea rdx, [rbp - 0x50]
call fcn.1800636d0
lea rdx, [rsp + 0x70]
lea rcx, [rsp + 0x28]
call fcn.1800470c0
or edi, 2
lea rcx, [rsp + 0x28]
mov r9, qword [rsp + 0x28]
mov r10, qword [rsp + 0x40]
cmp r10, 0xf
cmova rcx, r9
lea r11, [rsp + 0x28]
cmova r11, r9
mov rdx, qword [rsp + 0x38]
add r11, rdx
cmp rcx, r11
je 0x18005ea9c
nop dword [rax + rax]
movsx edx, byte [rcx]
lea eax, [rdx - 0x41]
cmp al, 0x19
ja 0x18005ea2c
lea r8d, [rdx - 0x3c]
mov eax, 0x4ec4ec4f
imul r8d
sar edx, 3
mov eax, edx
shr eax, 0x1f
add edx, eax
imul eax, edx, 0x1a
sub r8d, eax
add r8b, 0x41
jmp 0x18005ea7e
lea eax, [rdx - 0x61]
cmp al, 0x19
ja 0x18005ea55
lea r8d, [rdx - 0x5c]
mov eax, 0x4ec4ec4f
imul r8d
sar edx, 3
mov eax, edx
shr eax, 0x1f
add edx, eax
imul eax, edx, 0x1a
sub r8d, eax
add r8b, 0x61
jmp 0x18005ea7e
lea eax, [rdx - 0x30]
cmp al, 9
ja 0x18005ea81
lea r8d, [rdx - 0x26]
mov eax, 0x66666667
imul r8d
sar edx, 2
mov eax, edx
shr eax, 0x1f
add edx, eax
lea eax, [rdx + rdx*4]
add eax, eax
sub r8d, eax
add r8b, 0x30
mov byte [rcx], r8b
inc rcx
cmp rcx, r11
jne 0x18005ea00
mov r10, qword [rsp + 0x40]
mov rdx, qword [rsp + 0x38]
mov r9, qword [rsp + 0x28]
mov rax, qword [rbp - 0x78]
cmp rax, 0xf
jbe 0x18005eae8
lea rdx, [rax + 1]
mov rcx, qword [rsp + 0x70]
mov rax, rcx
cmp rdx, 0x1000
jb 0x18005ead4
add rdx, 0x27
mov rcx, qword [rcx - 8]
sub rax, rcx
add rax, 0xfffffffffffffff8
cmp rax, 0x1f
ja 0x18005ed0d
call fcn.180064e44
mov r10, qword [rsp + 0x40]
mov rdx, qword [rsp + 0x38]
mov r9, qword [rsp + 0x28]
movups xmm0, xmmword [rsp + 0x28]
movups xmmword [rsp + 0x70], xmm0
movups xmm1, xmmword [rsp + 0x38]
movups xmmword [rbp - 0x80], xmm1
lea r8, [rsp + 0x70]
cmp r10, 0xf
cmova r8, r9
mov r9, r14
mov rcx, rsi
test rdx, rdx
je 0x18005eb34
nop dword [rax]
nop word [rax + rax]
movzx eax, byte [rcx + r8]
xor r9, rax
imul r9, rbx
inc rcx
cmp rcx, rdx
jb 0x18005eb20
lea r8, [rsp + 0x70]
lea rdx, [rsp + 0x50]
call fcn.180064310
mov rcx, qword [rax + 8]
mov rax, qword [0x1800a7328]
test rcx, rcx
cmovne rax, rcx
cmp rax, qword [0x1800a7328]
je 0x18005eb7f
lea r8, [rsp + 0x70]
lea rdx, [rsp + 0x60]
call fcn.180063ab0
mov rcx, qword [rax]
mov rcx, qword [rcx + 0x30]
mov rax, qword [rcx]
lea rdx, [rbp - 0x50]
call qword [rax + 8]
nop
mov rdx, qword [rbp - 0x38]
cmp rdx, 0xf
jbe 0x18005ebba
inc rdx
mov rcx, qword [rbp - 0x50]
mov rax, rcx
cmp rdx, 0x1000
jb 0x18005ebb5
add rdx, 0x27
mov rcx, qword [rcx - 8]
sub rax, rcx
add rax, 0xfffffffffffffff8
cmp rax, 0x1f
ja 0x18005ed14
call fcn.180064e44
mov qword [rbp - 0x40], rsi
mov qword [rbp - 0x38], 0xf
mov byte [rbp - 0x50], 0
mov rdx, qword [rbp - 0x78]
cmp rdx, 0xf
jbe 0x18005ec06
inc rdx
mov rcx, qword [rsp + 0x70]
mov rax, rcx
cmp rdx, 0x1000
jb 0x18005ec01
add rdx, 0x27
mov rcx, qword [rcx - 8]
sub rax, rcx
add rax, 0xfffffffffffffff8
cmp rax, 0x1f
ja 0x18005ed1b
call fcn.180064e44
mov qword [rbp - 0x80], rsi
mov qword [rbp - 0x78], 0xf
mov byte [rsp + 0x70], 0
mov rax, qword [rbp + 0xe0]
movsxd rcx, dword [rax + 4]
mov qword [rbp + rcx + 0xe0], r15
mov rax, qword [rbp + 0xe0]
movsxd rcx, dword [rax + 4]
lea edx, [rcx - 0x90]
mov dword [rbp + rcx + 0xdc], edx
lea rcx, [rbp + 0xf0]
call fcn.180046f70
lea rcx, [rbp + 0xf8]
call qword [sym.imp.MSVCP140.dll_public_virtual:_void___cdecl_std::basic_istream_char__struct_std::char_traits_char__::destructor_void____ptr64]
lea rcx, [rbp + 0x170]
call qword [sym.imp.MSVCP140.dll_public_virtual:_void___cdecl_std::basic_ios_char__struct_std::char_traits_char__::destructor_void____ptr64]
mov rax, qword [rbp - 0x30]
movsxd rcx, dword [rax + 4]
lea rax, [rbp - 0x30]
add rcx, rax
mov dl, 0xa
call qword [sym.imp.MSVCP140.dll_public:_char___cdecl_std::basic_ios_char__struct_std::char_traits_char__::widen_char_const___ptr64]
movzx r8d, al
lea rdx, [rbp - 0x70]
lea rcx, [rbp - 0x30]
call fcn.180047ca0
mov rcx, qword [rax]
movsxd rcx, dword [rcx + 4]
add rcx, rax
call qword [sym.imp.MSVCP140.dll_public:_bool___cdecl_std::ios_base::operator_bool_void_const___ptr64]
test al, al
jne 0x18005e8b0
lea rcx, [rbp - 0x20]
call fcn.180063180
test rax, rax
jne 0x18005ecd4
mov rax, qword [rbp - 0x30]
movsxd rcx, dword [rax + 4]
lea rax, [rbp - 0x30]
add rcx, rax
xor r8d, r8d
mov edx, 2
call qword [sym.imp.MSVCP140.dll_public:_void___cdecl_std::basic_ios_char__struct_std::char_traits_char__::setstate_int__bool____ptr64]
nop
mov rdx, qword [rbp - 0x58]
cmp rdx, 0xf
jbe 0x18005ed27
inc rdx
mov rcx, qword [rbp - 0x70]
mov rax, rcx
cmp rdx, 0x1000
jb 0x18005ed22
add rdx, 0x27
mov rcx, qword [rcx - 8]
sub rax, rcx
add rax, 0xfffffffffffffff8
cmp rax, 0x1f
jbe 0x18005ed22
call qword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
nop
call qword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
nop
call qword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
nop
call qword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
nop
call fcn.180064e44
mov bl, 1
jmp 0x18005ed2d
xor bl, bl
mov rcx, qword [rbp - 0x30]
movsxd rdx, dword [rcx + 4]
mov qword [rbp + rdx - 0x30], r12
mov rcx, qword [rbp - 0x30]
movsxd rdx, dword [rcx + 4]
lea r8d, [rdx - 0xb0]
mov dword [rbp + rdx - 0x34], r8d
lea rcx, [rbp - 0x20]
call fcn.180062dd0
lea rcx, [rbp - 0x18]
call qword [sym.imp.MSVCP140.dll_public_virtual:_void___cdecl_std::basic_istream_char__struct_std::char_traits_char__::destructor_void____ptr64]
lea rcx, [rbp + 0x80]
call qword [sym.imp.MSVCP140.dll_public_virtual:_void___cdecl_std::basic_ios_char__struct_std::char_traits_char__::destructor_void____ptr64]
movzx eax, bl
mov rcx, qword [rbp + 0x1d0]
xor rcx, rsp
call fcn.180064a70
lea r11, [rsp + 0x2e0]
mov rbx, qword [r11 + 0x30]
mov rsi, qword [r11 + 0x40]
mov rdi, qword [r11 + 0x48]
mov rsp, r11
pop r15
pop r14
pop r13
pop r12
pop rbp
ret