Function at 0x1800c2580
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
test rdx, rdx
jne 0x1800c2578
xor eax, eax
ret
jmp 0x1800c2580
push rdi
lea rdi, [0x1800e2a40]
mov r11d, r8d
mov r10, rdx
not ecx
test r8d, r8d
je 0x1800c25bb
test r10b, 3
je 0x1800c25bb
movzx edx, byte [r10]
mov eax, ecx
xor rdx, rax
inc r10
shr eax, 8
movzx r8d, dl
mov ecx, dword [rdi + r8*4]
xor ecx, eax
add r11d, 0xffffffff
jne 0x1800c2596
cmp r11d, 0x20
jb 0x1800c27ee
mov qword [rsp + 0x10], rbx
mov ebx, r11d
shr rbx, 5
xor ecx, dword [r10]
mov r9d, ecx
mov eax, ecx
shr rax, 0x10
movzx edx, al
mov eax, ecx
shr rax, 8
movzx ecx, al
mov eax, r9d
mov r8d, dword [rdi + rdx*4 + 0x400]
shr rax, 0x18
xor r8d, dword [rdi + rcx*4 + 0x800]
xor r8d, dword [rdi + rax*4]
movzx eax, r9b
xor r8d, dword [rdi + rax*4 + 0xc00]
xor r8d, dword [r10 + 4]
mov r9d, r8d
mov eax, r8d
shr rax, 0x10
movzx edx, al
mov eax, r8d
shr rax, 8
movzx ecx, al
mov eax, r9d
mov r8d, dword [rdi + rdx*4 + 0x400]
shr rax, 0x18
xor r8d, dword [rdi + rcx*4 + 0x800]
xor r8d, dword [rdi + rax*4]
movzx eax, r9b
xor r8d, dword [rdi + rax*4 + 0xc00]
xor r8d, dword [r10 + 8]
mov r9d, r8d
mov eax, r8d
shr rax, 0x10
movzx edx, al
mov eax, r8d
shr rax, 8
movzx ecx, al
mov eax, r9d
mov r8d, dword [rdi + rdx*4 + 0x400]
shr rax, 0x18
xor r8d, dword [rdi + rcx*4 + 0x800]
xor r8d, dword [rdi + rax*4]
movzx eax, r9b
xor r8d, dword [rdi + rax*4 + 0xc00]
xor r8d, dword [r10 + 0xc]
mov r9d, r8d
mov eax, r8d
shr rax, 0x10
movzx edx, al
mov eax, r8d
shr rax, 8
movzx ecx, al
mov eax, r9d
mov r8d, dword [rdi + rdx*4 + 0x400]
shr rax, 0x18
xor r8d, dword [rdi + rcx*4 + 0x800]
xor r8d, dword [rdi + rax*4]
movzx eax, r9b
xor r8d, dword [rdi + rax*4 + 0xc00]
xor r8d, dword [r10 + 0x10]
mov r9d, r8d
mov eax, r8d
shr rax, 0x10
movzx edx, al
mov eax, r8d
shr rax, 8
movzx ecx, al
mov eax, r9d
mov r8d, dword [rdi + rdx*4 + 0x400]
shr rax, 0x18
xor r8d, dword [rdi + rcx*4 + 0x800]
xor r8d, dword [rdi + rax*4]
movzx eax, r9b
xor r8d, dword [rdi + rax*4 + 0xc00]
xor r8d, dword [r10 + 0x14]
mov eax, r8d
shr rax, 0x10
movzx edx, al
mov eax, r8d
mov r9d, r8d
mov r8d, dword [rdi + rdx*4 + 0x400]
add r11d, 0xffffffe0
shr rax, 8
movzx ecx, al
mov eax, r9d
shr rax, 0x18
xor r8d, dword [rdi + rcx*4 + 0x800]
xor r8d, dword [rdi + rax*4]
movzx eax, r9b
xor r8d, dword [rdi + rax*4 + 0xc00]
xor r8d, dword [r10 + 0x18]
mov r9d, r8d
mov eax, r8d
shr rax, 0x10
movzx edx, al
mov eax, r8d
shr rax, 8
movzx ecx, al
mov eax, r9d
mov r8d, dword [rdi + rdx*4 + 0x400]
shr rax, 0x18
xor r8d, dword [rdi + rcx*4 + 0x800]
xor r8d, dword [rdi + rax*4]
movzx eax, r9b
xor r8d, dword [rdi + rax*4 + 0xc00]
xor r8d, dword [r10 + 0x1c]
add r10, 0x20
mov eax, r8d
shr rax, 0x10
movzx ecx, al
mov eax, r8d
shr rax, 8
movzx edx, al
mov ecx, dword [rdi + rcx*4 + 0x400]
mov eax, r8d
shr rax, 0x18
xor ecx, dword [rdi + rdx*4 + 0x800]
xor ecx, dword [rdi + rax*4]
movzx eax, r8b
xor ecx, dword [rdi + rax*4 + 0xc00]
sub rbx, 1
jne 0x1800c25d1
mov rbx, qword [rsp + 0x10]
cmp r11d, 4
jb 0x1800c284a
mov r9d, r11d
shr r9, 2
nop dword [rax + rax]
xor ecx, dword [r10]
add r11d, 0xfffffffc
mov r8d, ecx
add r10, 4
mov eax, ecx
shr rax, 0x10
movzx ecx, al
mov eax, r8d
shr rax, 8
movzx edx, al
mov eax, r8d
shr rax, 0x18
mov ecx, dword [rdi + rcx*4 + 0x400]
xor ecx, dword [rdi + rdx*4 + 0x800]
xor ecx, dword [rdi + rax*4]
movzx eax, r8b
xor ecx, dword [rdi + rax*4 + 0xc00]
sub r9, 1
jne 0x1800c2800
test r11d, r11d
je 0x1800c2870
nop
movzx edx, byte [r10]
lea r10, [r10 + 1]
mov eax, ecx
xor rdx, rax
shr eax, 8
movzx r8d, dl
mov ecx, dword [rdi + r8*4]
xor ecx, eax
add r11d, 0xffffffff
jne 0x1800c2850
not ecx
mov eax, ecx
pop rdi
ret