Function at 0x490050
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
push edi
push esi
push ebx
sub esp, 0x3c
mov eax, dword [ebp + 0x18]
mov edi, dword [ebp + 8]
mov ebx, dword [ebp + 0x1c]
test eax, eax
je 0x4901e4
sub esp, 0xc
mov eax, dword [ebp + 0x14]
push eax
call fcn.0043a2b0
add esp, 0x10
mov esi, eax
mov dword [ebp - 0x40], 0
test eax, eax
js 0x490161
cmp ebx, 0xffffffff
je 0x4901f0
cmp ebx, 0xfffffffe
je 0x49009e
jl 0x4901a0
sub esp, 0xc
mov eax, dword [edi + 0x10]
push eax
call fcn.0041bf50
dec eax
and eax, 7
mov dword [ebp - 0x38], eax
mov dword [esp], edi
call fcn.0041bda0
mov ecx, dword [ebp - 0x38]
add esp, 0x10
mov edi, eax
test ecx, ecx
je 0x490170
cmp ebx, 0xfffffffe
je 0x490184
lea eax, [esi + ebx + 2]
cmp edi, eax
jl 0x4901d3
mov dword [ebp - 0x30], 0
test ebx, ebx
jle 0x49011b
push edx
push 0xf2
push str.external_openssl_crypto_rsa_rsa_pss.c
push ebx
call fcn.00424910
add esp, 0x10
mov dword [ebp - 0x30], eax
test eax, eax
je 0x4902f7
push eax
push eax
push ebx
mov eax, dword [ebp - 0x30]
push eax
call fcn.00427160
add esp, 0x10
test eax, eax
jle 0x490144
sub esp, 0xc
lea eax, [ebp - 0x24]
push eax
call fcn.0045ab80
add esp, 0xc
lea edx, [ebp - 0x24]
push 0
mov eax, dword [ebp + 0x14]
push eax
push edx
call fcn.0045ae80
add esp, 0x10
test eax, eax
jne 0x4901f7
mov dword [ebp - 0x40], 0
mov edx, dword [ebp - 0x30]
test edx, edx
je 0x490161
sub esp, 0xc
mov eax, dword [ebp - 0x30]
push eax
call fcn.00424a40
add esp, 0x10
mov eax, dword [ebp - 0x40]
lea esp, [ebp - 0xc]
pop ebx
pop esi
pop edi
pop ebp
ret
mov edx, dword [ebp + 0xc]
dec edi
mov byte [edx], 0
inc edx
mov dword [ebp + 0xc], edx
cmp ebx, 0xfffffffe
jne 0x4900d2
mov eax, edi
mov dword [ebp - 0x30], 0
sub eax, esi
lea ebx, [eax - 2]
test ebx, ebx
jg 0x4900e9
jmp 0x49011b
sub esp, 0xc
push 0xdc
push str.external_openssl_crypto_rsa_rsa_pss.c
push 0x88
push 0x94
push 4
call fcn.004240e0
mov dword [ebp - 0x40], 0
mov eax, dword [ebp - 0x40]
add esp, 0x20
lea esp, [ebp - 0xc]
pop ebx
pop esi
pop edi
pop ebp
ret
sub esp, 0xc
push 0xed
push str.external_openssl_crypto_rsa_rsa_pss.c
push 0x6e
jmp 0x4901b2
mov eax, dword [ebp + 0x14]
mov dword [ebp + 0x18], eax
jmp 0x49006a
mov ebx, eax
jmp 0x49009e
push eax
lea eax, [ebp - 0x24]
push 8
push 0x4c7522
push eax
call fcn.0045aa60
add esp, 0x10
test eax, eax
je 0x490144
push eax
push esi
mov eax, dword [ebp + 0x10]
lea edx, [ebp - 0x24]
push eax
push edx
call fcn.0045aa60
add esp, 0x10
test eax, eax
je 0x490144
test ebx, ebx
je 0x49024b
push ecx
push ebx
mov edx, dword [ebp - 0x30]
lea eax, [ebp - 0x24]
push edx
push eax
call fcn.0045aa60
add esp, 0x10
test eax, eax
je 0x490144
mov eax, edi
mov edx, dword [ebp + 0xc]
sub eax, esi
dec eax
add edx, eax
mov dword [ebp - 0x3c], eax
mov dword [ebp - 0x34], edx
push eax
lea eax, [ebp - 0x24]
push 0
push edx
push eax
call fcn.0045adc0
add esp, 0x10
test eax, eax
je 0x490144
sub esp, 0xc
lea edx, [ebp - 0x24]
push edx
call fcn.0045aa70
pop eax
mov eax, dword [ebp + 0x18]
push eax
push esi
mov eax, dword [ebp - 0x34]
push eax
mov eax, dword [ebp - 0x3c]
push eax
mov eax, dword [ebp + 0xc]
push eax
call fcn.0044ee70
add esp, 0x20
test eax, eax
jne 0x490144
mov eax, edi
sub eax, ebx
sub eax, esi
mov esi, dword [ebp + 0xc]
lea ecx, [esi + eax - 2]
xor byte [ecx], 1
test ebx, ebx
jle 0x4902c6
xor edx, edx
mov esi, dword [ebp - 0x30]
mov al, byte [edx + esi]
xor byte [edx + ecx + 1], al
inc edx
cmp edx, ebx
jne 0x4902b7
mov esi, dword [ebp - 0x38]
test esi, esi
je 0x4902e3
mov ebx, dword [ebp - 0x38]
mov ecx, 8
sub ecx, ebx
mov eax, 0xff
mov edx, dword [ebp + 0xc]
sar eax, cl
and byte [edx], al
mov esi, dword [ebp + 0xc]
mov byte [edi + esi - 1], 0xbc
mov dword [ebp - 0x40], 1
jmp 0x49014b
sub esp, 0xc
push 0xf5
push str.external_openssl_crypto_rsa_rsa_pss.c
push 0x41
jmp 0x4901b2