Function at 0x5729e6
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 0x572a06
sub ebx, edi
test edi, edi
je 0x572a4e
mov eax, dword [esi + 0x18]
lea ebp, [esi + 4]
cmp eax, 0x10
jb 0x572a31
mov ecx, dword [ebp]
cmp ecx, edi
ja 0x572a4e
cmp eax, 0x10
jb 0x572a39
mov edx, dword [ebp]
jmp 0x572a3b
mov ecx, ebp
cmp ecx, edi
jbe 0x572a27
jmp 0x572a4e
mov edx, ebp
mov ecx, dword [esi + 0x14]
add edx, ecx
cmp edx, edi
jbe 0x572a4e
cmp eax, 0x10
jb 0x572aa6
mov edx, dword [ebp]
jmp 0x572aa8
sub esp, 4
push 0
push ebx
push esi
call fcn.005712de
add esp, 0x10
test al, al
je 0x572a9c
mov eax, dword [esi + 0x18]
lea ebp, [esi + 4]
cmp eax, 0x10
jb 0x572a75
mov ecx, dword [ebp]
test ebx, ebx
jne 0x572a7b
jmp 0x572a8c
mov ecx, ebp
test ebx, ebx
je 0x572a8c
sub esp, 4
push ebx
push edi
push ecx
call 0x8cb78e
add esp, 0x10
mov eax, dword [esi + 0x18]
cmp eax, 0x10
jb 0x572a94
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 0x572b35
cmp edx, ebx
ja 0x572aba
mov ebx, edx
add ebx, edi
cmp ecx, ebx
jb 0x572b45
cmp eax, 0xf
ja 0x572acd
mov eax, ebp
jmp 0x572ad0
mov eax, dword [esi + 4]
mov dword [esi + 0x14], ebx
mov byte [eax + ebx], 0
mov ebx, dword [esi + 0x14]
cmp ebx, edi
jbe 0x572b1c
test edi, edi
je 0x572a9c
mov eax, dword [esi + 4]
mov ecx, dword [esi + 0x18]
cmp ecx, 0xf
mov edx, eax
ja 0x572af1
mov edx, ebp
sub ebx, edi
je 0x572b0b
add edi, edx
sub esp, 4
push ebx
push edi
push edx
call 0x8cb8a7
add esp, 0x10
mov eax, dword [esi + 4]
mov ecx, dword [esi + 0x18]
cmp ecx, 0xf
ja 0x572b12
mov eax, ebp
mov dword [esi + 0x14], ebx
add eax, ebx
mov byte [eax], 0
jmp 0x572a9c
cmp dword [esi + 0x18], 0xf
jbe 0x572b25
mov ebp, dword [esi + 4]
mov dword [esi + 0x14], 0
mov byte [ebp], 0
jmp 0x572a9c
sub esp, 0xc
push 0x78d450
call 0x8c7d72
add esp, 0xc
sub esp, 0xc
push 0x78d450
call 0x8c7d72
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 0x572d61
mov dword [esp], edi
lea ebx, [ecx + 1]
mov edi, ecx
mov dword [esp + 4], edi
nop word cs:[eax + eax]
test edi, edi
je 0x572c06
mov eax, dword [ebp]
cmp eax, 0x270
jne 0x572c16
mov ecx, dword [ebp + 4]
mov eax, 0xfffffd90
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 + 0x1384], edx
inc eax
jne 0x572bb6
mov eax, dword [ebp]
jmp 0x572cf1
xor ecx, ecx
xor esi, esi
jmp 0x572d2d
cmp eax, 0x4e0
jb 0x572cf1
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 0x572c36
mov ecx, dword [ebp + 0xd50]
mov eax, 0x80000000
and ecx, eax
xor eax, eax
nop word [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 0x572c86
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
lea ecx, [eax + 1]
mov dword [ebp], ecx
mov eax, dword [ebp + eax*4 + 4]
mov ecx, eax
shr ecx, 0xb
and ecx, dword [ebp + 0x1384]
xor ecx, eax
mov eax, ecx
shl eax, 7
and eax, 0x9d2c5680
xor eax, ecx
mov edx, eax
shl edx, 0xf
and edx, 0xefc60000
xor edx, eax
mov ecx, edx
shr ecx, 0x12
xor ecx, edx
mov esi, 0xffffffff
xor edx, edx
mov eax, ecx
div ebx
mov edi, eax
xor edx, edx
mov eax, esi
div ebx
cmp edi, eax
mov edi, dword [esp + 4]
jb 0x572d51
xor edx, edx
mov eax, esi
div ebx
cmp edx, edi
jne 0x572b96
xor edx, edx
mov eax, ecx
div ebx
mov eax, edx
mov edi, dword [esp]
jmp 0x572ec8
mov eax, dword [ebp]
cmp eax, 0x270
jne 0x572db7
mov ecx, dword [ebp + 4]
mov eax, 0xfffffd90
nop dword [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 + 0x1384], edx
inc eax
jne 0x572d76
mov eax, dword [ebp]
jmp 0x572e91
cmp eax, 0x4e0
jb 0x572e91
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 0x572dd6
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 0x572e26
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
lea ecx, [eax + 1]
mov dword [ebp], ecx
mov eax, dword [ebp + eax*4 + 4]
mov ecx, eax
shr ecx, 0xb
and ecx, dword [ebp + 0x1384]
xor ecx, eax
mov eax, ecx
shl eax, 7
and eax, 0x9d2c5680
xor eax, ecx
mov ecx, eax
shl ecx, 0xf
and ecx, 0xefc60000
xor ecx, eax
mov eax, ecx
shr eax, 0x12
xor eax, ecx
add eax, edi
xor eax, 0x80000000
add esp, 8
pop esi
pop edi
pop ebx
pop ebp
ret