Function at 0x1800ac190
Capabilities:
Encode data using xor
Generate random numbers using a mersenne twister

Disassembly:
mov qword [rsp + 0x10], rbx
mov qword [rsp + 0x18], rsi
mov qword [rsp + 0x20], rdi
push rbp
push r12
push r13
push r14
push r15
lea rbp, [rsp - 0x12f0]
mov eax, 0x13f0
call fcn.1800c9c70
sub rsp, rax
mov rax, qword [0x18011c040]
xor rax, rsp
mov qword [rbp + 0x12e0], rax
mov rsi, rcx
mov qword [rsp + 0x28], rcx
xor edi, edi
mov dword [rsp + 0x20], edi
xorps xmm0, xmm0
movups xmmword [rsp + 0x30], xmm0
mov qword [rsp + 0x40], rdi
mov qword [rsp + 0x48], rdi
lea r8d, [rdi + 0x24]
lea rdx, str.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ
lea rcx, [rsp + 0x30]
call fcn.18001f670
nop
call qword [sym.imp.MSVCP140.dll_unsigned_int___cdecl_std::_Random_device_void_]
mov edx, eax
mov dword [rbp + 0x12d4], 0xffffffff
mov dword [rsp + 0x54], eax
lea ecx, [rdi + 1]
nop dword [rax]
mov eax, edx
shr eax, 0x1e
xor eax, edx
imul edx, eax, 0x6c078965
add edx, ecx
mov dword [rsp + rcx*4 + 0x54], edx
inc rcx
cmp rcx, 0x270
jb 0x1800ac220
mov ebx, 0x270
mov dword [rsp + 0x50], ebx
mov r14d, dword [rsp + 0x40]
dec r14d
xorps xmm0, xmm0
movups xmmword [rsi], xmm0
mov qword [rsi + 0x10], rdi
mov qword [rsi + 0x18], rdi
mov r8d, reloc.WS2_32.dll_inet_addr
lea rdx, str.CraniumGen_
mov rcx, rsi
call fcn.18001f670
mov dword [rsp + 0x20], 1
mov r15d, 4
mov r12, qword [rsp + 0x48]
mov r13, qword [rsp + 0x30]
nop dword [rax + rax]
cmp r14d, 0xffffffff
jne 0x1800ac422
cmp ebx, 0x270
jne 0x1800ac2f2
lea r8, [rsp + 0x58]
mov r9d, ebx
nop word [rax + rax]
mov edx, dword [r8 - 4]
xor edx, dword [r8]
btr edx, 0x1f
xor edx, dword [r8 - 4]
mov eax, edx
and al, 1
neg al
sbb ecx, ecx
and ecx, 0x9908b0df
xor ecx, dword [r8 + 0x630]
shr edx, 1
xor ecx, edx
mov dword [r8 + 0x9bc], ecx
lea r8, [r8 + 4]
sub r9, 1
jne 0x1800ac2b0
mov ebx, dword [rsp + 0x50]
jmp 0x1800ac3e8
cmp ebx, 0x4e0
jb 0x1800ac3e8
mov r8, rdi
lea r9, [rbp + 0x914]
lea r10, [rbp + 0xf48]
lea r11, [rsp + 0x54]
nop dword [rax]
nop dword [rax + rax]
mov edx, dword [r9 + r8*4]
xor edx, dword [rbp + r8*4 + 0x918]
btr edx, 0x1f
xor edx, dword [r9 + r8*4]
mov eax, edx
and al, 1
neg al
sbb ecx, ecx
and ecx, 0x9908b0df
xor ecx, dword [r10 + r8*4]
shr edx, 1
xor ecx, edx
mov dword [r11 + r8*4], ecx
inc r8
cmp r8, 0xe3
jb 0x1800ac320
mov r8d, 0xe3
lea r9, [rbp + 0x918]
lea r10, [rsp + 0x54]
nop dword [rax]
mov eax, dword [rbp + r8*4 + 0x914]
mov edx, eax
xor edx, dword [r9 + r8*4]
btr edx, 0x1f
xor edx, eax
mov eax, edx
and al, 1
neg al
sbb ecx, ecx
and ecx, 0x9908b0df
xor ecx, dword [rbp + r8*4 - 0x438]
shr edx, 1
xor ecx, edx
mov dword [r10 + r8*4], ecx
inc r8
cmp r8, 0x26f
jb 0x1800ac370
mov edx, dword [rbp + 0x12d0]
and edx, 0x80000000
mov eax, dword [rsp + 0x54]
btr eax, 0x1f
or edx, eax
mov eax, edx
and al, 1
neg al
sbb ecx, ecx
and ecx, 0x9908b0df
shr edx, 1
xor ecx, edx
xor ecx, dword [rbp + 0x584]
mov dword [rbp + 0x910], ecx
mov ebx, edi
mov dword [rsp + 0x50], ebx
mov eax, ebx
mov edx, dword [rsp + rax*4 + 0x54]
inc ebx
mov dword [rsp + 0x50], ebx
mov eax, edx
shr eax, 0xb
and eax, dword [rbp + 0x12d4]
xor edx, eax
mov eax, edx
and eax, 0xff3a58ad
shl eax, 7
xor edx, eax
mov eax, edx
and eax, 0xffffdf8c
shl eax, 0xf
xor edx, eax
mov ecx, edx
shr ecx, 0x12
xor ecx, edx
jmp 0x1800ac46e
lea ebx, [r14 + 1]
lea rcx, [rsp + 0x50]
call fcn.1800ac9a0
mov edi, ebx
mov ecx, eax
imul rcx, rdi
cmp ecx, ebx
jae 0x1800ac464
mov eax, ebx
neg eax
xor edx, edx
div ebx
mov ebx, edx
cmp ecx, edx
jae 0x1800ac464
nop word [rax + rax]
lea rcx, [rsp + 0x50]
call fcn.1800ac9a0
mov ecx, eax
imul rcx, rdi
cmp ecx, ebx
jb 0x1800ac450
shr rcx, 0x20
mov ebx, dword [rsp + 0x50]
xor edi, edi
lea rdx, [rsp + 0x30]
cmp r12, 7
cmova rdx, r13
movsxd rax, ecx
movzx r9d, word [rdx + rax*2]
mov rcx, qword [rsi + 0x10]
mov rdx, qword [rsi + 0x18]
cmp rcx, rdx
jae 0x1800ac4b0
lea rax, [rcx + 1]
mov qword [rsi + 0x10], rax
mov rax, rsi
cmp rdx, 7
jbe 0x1800ac4a4
mov rax, qword [rsi]
mov word [rax + rcx*2], r9w
mov word [rax + rcx*2 + 2], di
jmp 0x1800ac4b8
mov rcx, rsi
call fcn.18004a870
sub r15, 1
jne 0x1800ac290
lea rcx, [rsp + 0x30]
call fcn.18001f940
mov rax, rsi
mov rcx, qword [rbp + 0x12e0]
xor rcx, rsp
call fcn.1800c8b10
lea r11, [rsp + 0x13f0]
mov rbx, qword [r11 + 0x38]
mov rsi, qword [r11 + 0x40]
mov rdi, qword [r11 + 0x48]
mov rsp, r11
pop r15
pop r14
pop r13
pop r12
pop rbp
ret