Function at 0x534820
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x20
mov eax, dword [ebp + 8]
mov ecx, dword [eax + 8]
and ecx, 7
je 0x53488a
mov edx, dword [ebp + 8]
mov eax, dword [edx + 8]
and eax, 7
mov dword [ebp - 0x14], eax
mov ecx, dword [ebp + 8]
mov edx, dword [ecx + 8]
cmp edx, dword [ebp - 0x14]
jge 0x534854
mov eax, dword [ebp + 8]
push eax
call fcn.00531290
add esp, 4
mov edx, 1
mov ecx, dword [ebp - 0x14]
shl edx, cl
sub edx, 1
mov eax, dword [ebp + 8]
and edx, dword [eax + 0xc]
mov dword [ebp - 0x20], edx
mov ecx, dword [ebp + 8]
mov edx, dword [ecx + 0xc]
mov ecx, dword [ebp - 0x14]
shr edx, cl
mov eax, dword [ebp + 8]
mov dword [eax + 0xc], edx
mov ecx, dword [ebp + 8]
mov edx, dword [ecx + 8]
sub edx, dword [ebp - 0x14]
mov eax, dword [ebp + 8]
mov dword [eax + 8], edx
mov dword [ebp - 8], 0
mov ecx, dword [ebp + 8]
cmp dword [ecx + 8], 0
jle 0x5348d5
mov edx, dword [ebp + 8]
mov eax, dword [edx + 0xc]
and eax, 0xff
mov ecx, dword [ebp - 8]
mov byte [ebp + ecx - 0x10], al
mov edx, dword [ebp - 8]
add edx, 1
mov dword [ebp - 8], edx
mov eax, dword [ebp + 8]
mov ecx, dword [eax + 0xc]
shr ecx, 8
mov edx, dword [ebp + 8]
mov dword [edx + 0xc], ecx
mov eax, dword [ebp + 8]
mov ecx, dword [eax + 8]
sub ecx, 8
mov edx, dword [ebp + 8]
mov dword [edx + 8], ecx
jmp 0x534891
cmp dword [ebp - 8], 4
jge 0x534924
mov eax, dword [ebp + 8]
mov ecx, dword [ebp + 8]
mov edx, dword [eax]
cmp edx, dword [ecx + 4]
jb 0x5348f1
mov dword [ebp - 0x18], 0
jmp 0x53490f
mov eax, dword [ebp + 8]
mov ecx, dword [eax]
mov dl, byte [ecx]
mov byte [ebp - 1], dl
mov eax, dword [ebp + 8]
mov ecx, dword [eax]
add ecx, 1
mov edx, dword [ebp + 8]
mov dword [edx], ecx
movzx eax, byte [ebp - 1]
mov dword [ebp - 0x18], eax
mov ecx, dword [ebp - 8]
mov dl, byte [ebp - 0x18]
mov byte [ebp + ecx - 0x10], dl
mov eax, dword [ebp - 8]
add eax, 1
mov dword [ebp - 8], eax
jmp 0x5348d5
mov ecx, 1
shl ecx, 0
movzx edx, byte [ebp + ecx - 0x10]
shl edx, 8
mov eax, 1
imul ecx, eax, 0
movzx eax, byte [ebp + ecx - 0x10]
add edx, eax
mov dword [ebp - 0xc], edx
mov ecx, 1
imul edx, ecx, 3
movzx eax, byte [ebp + edx - 0x10]
shl eax, 8
mov ecx, 1
shl ecx, 1
movzx edx, byte [ebp + ecx - 0x10]
add eax, edx
mov dword [ebp - 0x1c], eax
mov eax, dword [ebp - 0xc]
xor eax, 0xffff
cmp dword [ebp - 0x1c], eax
je 0x534986
push str.zlib_corrupt
call fcn.00531040
add esp, 4
jmp 0x534a08
mov ecx, dword [ebp + 8]
mov edx, dword [ecx]
add edx, dword [ebp - 0xc]
mov eax, dword [ebp + 8]
cmp edx, dword [eax + 4]
jbe 0x5349a5
push str.read_past_buffer
call fcn.00531040
add esp, 4
jmp 0x534a08
mov ecx, dword [ebp + 8]
mov edx, dword [ecx + 0x10]
add edx, dword [ebp - 0xc]
mov eax, dword [ebp + 8]
cmp edx, dword [eax + 0x18]
jbe 0x5349ce
mov ecx, dword [ebp - 0xc]
push ecx
mov edx, dword [ebp + 8]
push edx
call fcn.00531050
add esp, 8
test eax, eax
jne 0x5349ce
xor eax, eax
jmp 0x534a08
mov eax, dword [ebp - 0xc]
push eax
mov ecx, dword [ebp + 8]
mov edx, dword [ecx]
push edx
mov eax, dword [ebp + 8]
mov ecx, dword [eax + 0x10]
push ecx
call fcn.004bb140
add esp, 0xc
mov edx, dword [ebp + 8]
mov eax, dword [edx]
add eax, dword [ebp - 0xc]
mov ecx, dword [ebp + 8]
mov dword [ecx], eax
mov edx, dword [ebp + 8]
mov eax, dword [edx + 0x10]
add eax, dword [ebp - 0xc]
mov ecx, dword [ebp + 8]
mov dword [ecx + 0x10], eax
mov eax, 1
mov esp, ebp
pop ebp
ret