Function at 0x5c494b
Capabilities:
Encode data using xor
Generate random numbers using a mersenne twister

Disassembly:
push ebp
push ebx
push edi
push esi
sub esp, 0xc
mov edi, dword [esp + 0x24]
mov esi, dword [esp + 0x20]
lea ebx, [edi - 1]
nop word cs:[eax + eax]
cmp byte [ebx + 1], 0
lea ebx, [ebx + 1]
jne 0x5c496b
sub ebx, edi
test edi, edi
je 0x5c49b3
mov eax, dword [esi + 0x18]
lea ebp, [esi + 4]
cmp eax, 0x10
jb 0x5c4996
mov ecx, dword [ebp]
cmp ecx, edi
ja 0x5c49b3
cmp eax, 0x10
jb 0x5c499e
mov edx, dword [ebp]
jmp 0x5c49a0
mov ecx, ebp
cmp ecx, edi
jbe 0x5c498c
jmp 0x5c49b3
mov edx, ebp
mov ecx, dword [esi + 0x14]
add edx, ecx
cmp edx, edi
jbe 0x5c49b3
cmp eax, 0x10
jb 0x5c4a0b
mov edx, dword [ebp]
jmp 0x5c4a0d
sub esp, 4
push 0
push ebx
push esi
call fcn.005c3243
add esp, 0x10
test al, al
je 0x5c4a01
mov eax, dword [esi + 0x18]
lea ebp, [esi + 4]
cmp eax, 0x10
jb 0x5c49da
mov ecx, dword [ebp]
test ebx, ebx
jne 0x5c49e0
jmp 0x5c49f1
mov ecx, ebp
test ebx, ebx
je 0x5c49f1
sub esp, 4
push ebx
push edi
push ecx
call 0x91d6f3
add esp, 0x10
mov eax, dword [esi + 0x18]
cmp eax, 0x10
jb 0x5c49f9
mov ebp, dword [ebp]
mov dword [esi + 0x14], ebx
mov byte [ebp + ebx], 0
mov eax, esi
add esp, 0xc
pop esi
pop edi
pop ebx
pop ebp
ret
mov edx, ebp
sub edi, edx
mov edx, ecx
sub edx, edi
jb 0x5c4a9a
cmp edx, ebx
ja 0x5c4a1f
mov ebx, edx
add ebx, edi
cmp ecx, ebx
jb 0x5c4aaa
cmp eax, 0xf
ja 0x5c4a32
mov eax, ebp
jmp 0x5c4a35
mov eax, dword [esi + 4]
mov dword [esi + 0x14], ebx
mov byte [eax + ebx], 0
mov ebx, dword [esi + 0x14]
cmp ebx, edi
jbe 0x5c4a81
test edi, edi
je 0x5c4a01
mov eax, dword [esi + 4]
mov ecx, dword [esi + 0x18]
cmp ecx, 0xf
mov edx, eax
ja 0x5c4a56
mov edx, ebp
sub ebx, edi
je 0x5c4a70
add edi, edx
sub esp, 4
push ebx
push edi
push edx
call 0x91d80c
add esp, 0x10
mov eax, dword [esi + 4]
mov ecx, dword [esi + 0x18]
cmp ecx, 0xf
ja 0x5c4a77
mov eax, ebp
mov dword [esi + 0x14], ebx
add eax, ebx
mov byte [eax], 0
jmp 0x5c4a01
cmp dword [esi + 0x18], 0xf
jbe 0x5c4a8a
mov ebp, dword [esi + 4]
mov dword [esi + 0x14], 0
mov byte [ebp], 0
jmp 0x5c4a01
sub esp, 0xc
push 0x78d450
call 0x919cd7
add esp, 0xc
sub esp, 0xc
push 0x78d450
call 0x919cd7
add esp, 0xc
nop
push ebp
push ebx
push edi
push esi
sub esp, 8
mov ebp, dword [esp + 0x20]
mov eax, 0x80000000
mov edi, dword [esp + 0x24]
xor edi, eax
mov ecx, dword [esp + 0x28]
xor ecx, eax
sub ecx, edi
cmp ecx, 0xffffffff
je 0x5c4cc6
mov dword [esp], edi
lea ebx, [ecx + 1]
mov edi, ecx
mov dword [esp + 4], edi
nop word cs:[eax + eax]
mov eax, dword [ebp]
cmp eax, 0x270
jne 0x5c4d1c
mov ecx, dword [ebp + 4]
mov eax, 0xfffffd90
nop dword [eax]
cmp eax, 0x4e0
jb 0x5c4df6
mov ecx, dword [ebp + 0x9c4]
xor eax, eax
nop word cs:[eax + eax]
and ecx, 0x80000000
mov edx, dword [ebp + eax*4 + 0x9c8]
mov esi, edx
and esi, 0x7ffffffe
or esi, ecx
shr esi, 1
mov ecx, edx
and edx, 1
neg edx
and edx, 0x9908b0df
xor edx, dword [ebp + eax*4 + 0xff8]
xor edx, esi
mov dword [ebp + eax*4 + 4], edx
inc eax
cmp eax, 0xe3
jne 0x5c4d3b
mov ecx, 0x80000000
and ecx, dword [ebp + 0xd50]
xor eax, eax
nop dword [eax + eax]
mov edx, dword [ebp + eax*4 + 0xd54]
mov esi, edx
and esi, 0x7ffffffe
or esi, ecx
shr esi, 1
mov ecx, edx
and edx, 1
neg edx
and edx, 0x9908b0df
xor edx, dword [ebp + eax*4 + 4]
xor edx, esi
mov dword [ebp + eax*4 + 0x390], edx
and ecx, 0x80000000
inc eax
cmp eax, 0x18c
jne 0x5c4d8b
mov eax, dword [ebp + 4]
mov edx, eax
and edx, 0x7ffffffe
or edx, ecx
shr edx, 1
and eax, 1
neg eax
and eax, 0x9908b0df
xor eax, dword [ebp + 0x634]
xor eax, edx
mov dword [ebp + 0x9c0], eax
mov dword [ebp], 0
xor eax, eax