PerbedaanWEP, WPA, WPA2/PSK,MAC ADDRESS, dan HOTSPOT LOGIN · Wep adalah security untuk wireless yang agak lama. Sehingga penggemar wifi dan memiliki kemampuan hacking wireless mampu dengan mudah membobol enkripsi tersebut. kelemahan-kelemahan ters Post a Comment Read more Ad Hoc merupakan salah satu mode jaringan CaraMembobol Password Wifi WPA, WPA2-PSK - Kebutuhan akan akses internet sudah jadi kebutuhan yang sangat penting di zaman yang serba informasi ini, di karenakan hampir sekarang ini perkejaan bisa CaraMembuka Password WiFi – Koneksi WiFi atau biasa disebut hotspot ini merupakan satu diantara koneksi internet tanpa kabel (Wireless Nirkable) dengan standar jaringan 802.11b/g. WiFi yang memiliki password menggunakan sistem pengaman WPA/WPA2-PSK. Sistem WPA ini juga merupakan pengganti dari sistem keamanan terdahulu SepertiWPA, WPA2 juga ada dalam bentuk Pribadi / PSK dan Enterprise. 802.1X menyediakan otentikasi jaringan untuk kedua Wi-Fi dan jenis-jenis jaringan. Hal ini cenderung untuk digunakan oleh bisnis yang lebih besar sebagai teknologi ini membutuhkan keahlian tambahan untuk membuat dan memelihara. 802.1X bekerja dengan baik Wi-Fi dan jenis-jenis . WPA, WPA2 e WEP são protocolos de segurança Wi-Fi que têm a função de proteger as conexões sem fio. E, simultaneamente, ocultam os dados e preservam as comunicações, também bloqueiam hackers que tentam invadir o sistema. Desde a década de 90, os algoritmos de proteção de redes Wi-Fi já passaram por diversas mudanças e melhorias, tornando-se mais eficientes ao longo do tempo. Diante desse cenário, neste artigo, serão abordados os seguintes tópicos Por que a segurança nas redes sem fio é importante?Tipos de protocolos de segurança de Wi-Fi;WEP, WPA ou WPA2 qual é o melhor protocolo de segurança de Wi-Fi para meu roteador?Prós e contras WEP x WPA x WPA2;Proteja seu Wi-Fi. Por que a segurança nas redes sem fio é importante? Os protocolos de segurança são relevantes porque, além de impedirem que terceiros se conectem à tecnologia wireless, também realizam a criptografia de dados privados enviados por meio de ondas de rádio. Independentemente do quão codificadas e protegidas as redes sem fio sejam, não são tão seguras quanto as cabeadas. Isso porque, no nível mais básico, essas conexões enviam dados entre dois pontos A e B, conectados por um cabo. Por outro lado, para encaminhar informações do ponto A ao B, os sistemas wireless transmitem para toda a área de alcance. Dessa maneira, qualquer pessoa conectada tem acesso e pode interceptar seu tráfego de internet. Este, inclusive, é o princípio do Wi-Fi. A abreviação remete ao termo “Wireless-Fidelity”, ou seja, “fidelidade sem fio”. Tipos de protocolos de segurança de Wi-Fi Agora,entenderemos os tipos de protocolos estabelecidos em conexões Wi-Fi WEP, WPA, WPA2 e WPA3. WEP O WEP foi desenvolvido e aprovado como padrão de segurança em setembro de 1999. Tinha como objetivo proporcionar o mesmo nível de proteção oferecido pelas redes cabeadas. No entanto, muitos problemas de vazamento de dados foram identificados, além de ter sido considerado difícil de configurar e fácil de ser quebrado. Embora estejam trabalhando para aprimorá-lo, ainda é um recurso altamente vulnerável. Por isso, em 2004, foi abandonado oficialmente pela Wi-Fi Alliance. Assim, os sistemas que dependem desse protocolo devem ser atualizados ou substituídos por outros dispositivos, caso o upgrade esteja indisponível. WPA No período de desenvolvimento do padrão de segurança sem fio, o WPA Wi-Fi Protected Access foi utilizado como uma alternativa de proteção aprimorada e temporária para o WEP. Em 2003, foi adotado formalmente. Grande parte dos aplicativos WPA mais atuais faz uso de uma chave pré-compartilhada PSK, chamada de WPA Persona, e do protocolo Temporal Key Integrity Protocol TKIP para criptografia. O WPA Enterprise utiliza um servidor de autenticação para a geração de certificados e chaves. Sua atualização teve uma melhoria significativa em comparação ao tipo usado anteriormente. Apesar disso, os principais componentes foram criados para serem implementados por meio de atualizações de firmware em dispositivos compatíveis com WEP. Ou seja, o protocolo ainda era baseado em elementos de segurança frágeis. Dessa forma, o WPA foi submetido a uma prova de conceito, assim como o seu antecessor. Em demonstrações públicas, se mostrou muito suscetível a invasões. Os ataques que mais ameaçavam não eram realizados de forma direta, mas sim por meio do Wi-Fi Protected Setup WPS. Isto é, um sistema auxiliar criado para tornar mais simples o processo de conexão dos dispositivos aos pontos de acesso mais atuais. WPA2 Como o próprio nome indica, o WPA2 é a versão aprimorada do anterior. A melhoria mais significativa adicionada foi o uso do padrão de criptografia Advanced Encryption Standard AES. Aprovado pelo governo dos Estados Unidos, este foi definido como padrão para a criptografia de informações consideradas secretas. Por esse motivo, é possível concluir que o protocolo deve ser bom o bastante para manter redes domésticas seguras. Atualmente, a principal fragilidade do sistema acontece quando o invasor já possui acesso à rede Wi-Fi segura e consegue alcançar determinadas chaves para atacar outros dispositivos conectados à mesma rede. Com isso, as sugestões de segurança apresentadas pelo WPA2 são, na maior parte dos casos, relevantes somente para sistemas empresariais. Portanto, não são, de fato, significativas para pequenas redes domésticas. E, ainda que a invasão de uma rede segura, por causa dessa falha leve em torno de 2 a 14 horas, continua sendo um problema real e preocupante. Por esse motivo, o ideal é que o WPS seja desativado e, se possível, que o firmware do ponto de conexão seja redefinido para uma distribuição que não ofereça suporte. WPA3 O WPA3 Wi-Fi Protected Access 3 é o mais novo do mercado. Foi desenvolvido para codificar dados por meio de uma criptografia automática e frequente, conhecida como Perfect Forward Secrecy. É mais seguro que o WPA2, porém ainda não foi totalmente adotado. Ou seja, nem todos os hardwares são automaticamente habilitados. Dessa forma, seu uso requer, normalmente, atualizações que acarretam despesas elevadas. WEP, WPA ou WPA2 qual é o melhor protocolo de segurança de Wi-Fi para meu roteador? Embora os roteadores Wi-Fi suportem diversos protocolos para manter as redes sem fio seguras, o mais indicado é o WPA2. É provável que o único ponto negativo dele seja a quantidade de processamento necessária para proteger a rede. Isso significa, em outras palavras, que precisa de um um hardware mais potente para evitar que a conexão tenha um mau desempenho. Essa questão está relacionada aos pontos de acesso mais antigos, implementados antes da tecnologia, que só oferecem o suporte por meio de uma atualização de firmware. A maior parte das conexões atuais já são preparadas para rodar melhor. De todo modo, a recomendação é usar o WPA2 sempre que possível, e só usar o WPA se não houver nenhuma outra forma de atualização. O uso do primeiro também só é uma alternativa quando o acess point estiver com um grande volume de tráfego, ou apresentar problemas de velocidade. No entanto, quando a segurança é prioridade, utilizá-lo não deve ser uma opção. Em vez disso, é preciso levar em consideração a compra de melhores dispositivos de acesso à rede. Já o WEP só deve ser utilizado caso não haja possibilidade de uso dos padrões WPA. Prós e contras WEP x WPA x WPA2 Confira abaixo os pontos positivos e negativos de cada um dos protocolos de segurança existentes, do melhor para o pior. WPA2 Pontos positivos Utiliza o método de criptografia AES;Tem chave de 256 bits para criptografia;Resolve diversos problemas de segurança dos antecessores;É exigido pela Wi-Fi Alliance para uso em todos os produtos que têm o certificado Wi-Fi. Pontos negativos Ainda possui algumas falhas de segurança;Exige maior poder de processamento. WPA Pontos positivos Tem chave de 256 bits para criptografia;Resolve problemas de segurança do WEP;O método de criptografia TKIP é superior à criptografia de chave fixa utilizada pelo WEP. Pontos negativos Falhas de segurança semelhantes ao WEP;Quando implementado em dispositivos WEP, o TKIP pode ser explorado. WEP Pontos positivos Assegura proteção, ainda que pouca. Pontos negativos Difícil de configurar;Inúmeras falhas de segurança;Criptografia de chave fixa, com chaves de 64 bits e 128 bits. Proteja sua rede Wi-Fi Proteger a rede Wi-Fi é fundamental para preservar os dados e as informações compartilhadas via wireless. Apesar do WPA2 oferecer mais segurança em comparação ao WPA e ao WEP, a proteção do roteador também depende diretamente da senha que for definida. Os equipamentos mais novos permitem o uso de até 63 caracteres. Por esse motivo, a recomendação é usar o máximo de caracteres possíveis, e variados. Isso porque os hackers têm interesse em alvos mais vulneráveis. Caso não consigam quebrar a senha de uma rede em poucos minutos, provavelmente buscarão redes mais frágeis. Para potencializar a segurança de redes sem fio, a solução Vivo Wi-Fi Seguro é uma excelente aliada, pois, além de proteger o acesso, também identifica e bloqueia ameaças externas — e atende às necessidades de diversos tipos de negócios. A Vivo Empresas oferece uma série de soluções que ajudam a melhorar o uso dos meios digitais. Entre os serviços, estão os de conectividade, como o Vivo Fibra, que assegura a qualidade na conexão à internet e até recursos mais específicos, como a opção de combinar técnicas para aumentar a visibilidade da marca nas buscas online. LEIA MAIS Metaverso o que é e como os negócios podem se beneficiar da revolução da realidade virtualCatar 2022 tecnologias inovadoras prometem Copa do Mundo históricaNFT a tecnologia dos tokens não-fungíveis e suas possibilidades para os negócios Até a próxima! The major distinction between the two should not be about cryptography. WPA2-PSK, provided the shared password is of sufficient complexity, is unbreakable given current resources. The use of WPA-EAP-PSK or any WPA Enterprise EAP implementation should not be in an effort to increase the cryptographic strength of a wireless network but to provide other benefits such as granular control over who or what connects to the network. With the EAP options under WPA-Enterprise each user and device can have its own credentials and this increases control and auditing. However, some of those options are very cryptographically weak. To use an analogy, WPA-PSK is like having a dead bolt on your company door and providing every employee the same key. WPA-Enterprise/EAP is like having an key card system that electronically unlocks the door. To carry the analogy further, while those key cards give great control and auditing for each employee, the underlying lock often is weaker than the good old-fashioned deadbolt. Back to the crypto, with a 256 bit key, the only feasible attack is to capture the wireless handshake and then run a dictionary attack. As long as you choose a password of such complexity that it wouldn't appear in a dictionary list, WPA-PSK will be unbreakable. Now, if you have a need or concern about all users or devices sharing one key because of social engineering, trust, etc., then you do need to look at EAP/Enterprise options, but cryptographically, you're probably not going to beat WPA-PSK. Jordan Gloor / How-To Geek For maximum security, you should use WPA2 AES if you have older devices on your network and WPA3 if you have a newer router and newer devices that support Wi-Fi router offers encryption options like WPA2-PSK TKIP, WPA2-PSK AES, and WPA2-PSK TKIP/AES and even, if it’s modern enough, WPA3 AES. It can be a bit confusing, and if you choose the wrong one, you’ll have a slower, less-secure network. Here’s what you need to know. WPA2 vs. WEP, WPA, and WPA3 When you read about Wi-Fi security, the primary focus is usually on the type of encryption used to secure the wireless connection. That makes sense, after all, because, by the very nature of a Wi-Fi router, all communications between your client device like your smartphone or laptop and the router are flung through the open air. Anybody in range of your router can snoop on that communication or even gain access to your router if the wireless connection is insecure. This wireless connection is secured using security algorithms specifically designed for Wi-Fi. These algorithms aren’t strictly just encryption though that’s a crucial component but include additional functions that govern how keys are exchanged and verified, and more. Wired Equivalent Privacy WEP, Wi-Fi Protected Access WPA, and Wi-Fi Protected Access II WPA2 are the primary security algorithms you’ll see when setting up a wireless network. If you have a newer router, you may also see Wi-Fi Protected Access III WPA3, too. WEP is the oldest and has proven to be vulnerable as more and more security flaws have been discovered. WPA improved security but is now also considered vulnerable to intrusion. WPA2, while imperfect, is more secure than WEP or WPA and is one of the most widely used Wi-Fi security algorithms. WPA and WPA2 networks can use one of two encryption protocols, Temporal Key Integrity Protocol TKIP and Advanced Encryption Standard AES. We’ll look at the difference between those two encryption protocols in a moment. Finally, WPA3 networks only use the AES encryption protocol. Although introduced in 2018, WPA3 still doesn’t have widespread adoption. TKIP and AES are two different types of encryption that can be used by a Wi-Fi network. TKIP is actually an older encryption protocol introduced with WPA to replace the very-insecure WEP encryption at the time. TKIP is actually quite similar to WEP encryption. TKIP is no longer considered secure and is now deprecated. In other words, you shouldn’t be using it. AES is a more secure encryption protocol introduced with WPA2. AES isn’t some creaky standard developed specifically for Wi-Fi networks, either. It’s a serious worldwide encryption standard that’s even been adopted by the US government. For example, when you encrypt a hard drive with TrueCrypt, it can use AES encryption for that. Window’s built-in encryption tool BitLocker also uses AES, as does macOS’s tool FileVault. AES is generally considered quite secure, and the main weaknesses would be brute-force attacks prevented by using a strong passphrase and security weaknesses in other aspects of WPA2. The short version is that TKIP is an older encryption standard used by the WPA standard. AES is a newer Wi-Fi encryption solution used by the new-and-secure WPA2 standard. In theory, that’s the end of it. But, depending on your router, just choosing WPA2 may not be good enough. While WPA2 is supposed to use AES for optimal security, it can also use TKIP, where backward compatibility with legacy devices is needed. In such a state, devices that support WPA2 will connect with WPA2, and devices that support WPA will connect with WPA. So “WPA2” doesn’t always mean WPA2-AES. However, on devices without a visible “TKIP” or “AES” option, WPA2 is generally synonymous with WPA2-AES. Wi-Fi Security Modes Explained Which Should You Use? Confused yet? Don’t feel bad if you are. The world of Wi-Fi security is pretty arcane if you’re not a diehard network geek. Thankfully you don’t need to understand the intricacies of how security protocols and handshakes changed between all the generations of Wi-Fi. You just need to review our list below and select the most secure option that works with all of your hardware and devices. To help you avoid older and insecure options, we’ve flagged them with [Deprecated] after their name. And, to be clear, we’re not arbitrarily gatekeeping these protocols and declaring them deprecated based on our opinions. Both Microsoft and Apple have designated them as such, too, which is why your Windows laptop warns you when a Wi-Fi network isn’t secure, and your iPhone warns you when Wi-Fi networks have weak security. Additionally, we have not listed “Enterprise” options in the list below because Enterprise, or RADIUS-server based Wi-Fi security, is uncommon in residential settings and requires additional infrastructure. Further, please note that depending on your router, the non-Enterprise options may be designated as either “Personal” or “PSK”—PSK stands for “Pre-Shared Key” and indicates that, unlike an Enterprise setup, the security doesn’t rely on an authentication server but instead on the user having the pre-shared key the Wi-Fi password to input as their method of authentication. Starting with WPA2, and especially with WPA3, it’s more common to see “Personal” instead of “PSK.” With those notes in mind, here are the options you’re likely to see on your router. Open [Deprecated] Open Wi-Fi networks have no passphrase. You shouldn’t set up an open Wi-Fi network—seriously, you could have your door busted down by police. WEP 64 [Deprecated] The old WEP protocol standard is vulnerable, and you shouldn’t use it. WEP 128 [Deprecated] This is WEP, but with a larger encryption key size. It isn’t really any less vulnerable than WEP 64. WPA-PSK TKIP [Deprecated] This uses the original version of the WPA protocol essentially WPA1. It has been superseded by WPA2 and isn’t secure. WPA-PSK AES [Deprecated] This uses the original WPA protocol but replaces TKIP with the more modern AES encryption. It’s offered as a stopgap, but devices that support AES will almost always support WPA2, while devices that require WPA will almost never support AES encryption. So, this option makes little sense. WPA2-PSK TKIP [Deprecated] This uses the modern WPA2 standard with older TKIP This isn’t secure, and is only a good idea if you have older devices that can’t connect to a WPA2-PSK AES network. WPA2-PSK AES This is the most secure option outside of the newer WPA3. It uses WPA2, the latest Wi-Fi encryption standard, and the latest AES encryption You should use this option unless your router supports WPA3—then use that On some devices, you’ll just see the option “WPA2” or “WPA2-PSK.” If you do, it will probably just use AES, as that’s a common-sense choice. WPA/WPA2-PSK TKIP/AES Some devices offer—and even recommend—this mixed-mode option. This option enables both WPA and WPA2, with both TKIP and AES. This provides maximum compatibility with any ancient devices you might have, but it also allows an attacker to breach your network by cracking the more vulnerable WPA and TKIP protocols. WPA2/WPA3 PersonalAES Like the WPA/WPA2 hybrid, this mode is designed for backward compatibility. Your WPA2-only devices will connect using WPA2 AES and your WPA3 devices will use the more advanced protocol. It may also be labeled as “WPA3 Transitional” or a variation thereof. WPA3 Personal AES Older routers don’t have WPA3, and older devices can’t use WPA3. But if you have a new router that supports WPA3 and all newer devices, there’s no reason not to switch over entirely to WPA3. WPA2 certification became available in 2004. In 2006, WPA2 certification became mandatory. Any device manufactured after 2006 with a “Wi-Fi” logo must support WPA2 encryption. WPA3 certification became available in 2018, and any device certified after July 1, 2020, must support WPA3. Do note the use of certified and not manufactured, a company can still manufacture and sell an older design that was certified before the adoption of a new standard. Given that it’s quite likely every Wi-Fi device on your network including the router itself was certified and manufactured after 2006, there is no reason you shouldn’t use any security protocol below WPA2-PSK AES. You should be able to select that option in your router and experience zero issues. If you have a newer router that supports WPA3, we recommend trying WPA3 AES to jump to the highest level of security. If you run into any issues, switch to WPA2/WPA3 Hybrid AES. This way, the newest devices will use the best security, and the older devices will fall back to WPA2—either way, they’ll be using AES, which is ideal. If you don’t have a newer router, it’s probably time to recycle it and upgrade to a current Wi-Fi router with up-to-date standards and all the Wi-Fi improvements that come with it. You don’t need to buy a cutting-edge Wi-Fi 7 model, but it’s a great time to jump to Wi-Fi 6 or Wi-Fi 6E if you haven’t already. WPA and TKIP Will Slow Your Wi-Fi Down Maybe you’ve been reading along so far and thinking, “I don’t really care that much about security.” While we’d encourage you to be more concerned about Wi-Fi network security, we understand that’s not a pressing priority for everyone. So here’s a compelling reason to use better Wi-Fi security algorithms everyone can get behind. WPA and TKIP compatability options aren’t just bad from a security standpoint. They can slow down your Wi-Fi network, too. When you run WPA/TKIP on a router that supports and newer, faster standards, it will slow down to speeds 54 Mbps to ensure backward compatibility with older clients. That’s agonizingly slow. By comparison, even Wi-Fi 4 supports up to 300 Mbps if you’re using WPA2 with AES. Most folks have newer routers now, though. If you have an Wi-Fi 5, or Wi-Fi 6 router and you’re using WPA/TKIP, you’re leaving a huge amount of performance on the table. In Wi-Fi generations, is essentially “Wi-Fi 2” and came out in 2003. There’s just no good reason to use a Wi-Fi security standard that insecure, out of date, and slow. When In Doubt, Always Choose WPA 2 AES or WPA3 We’ve said it multiple times so far, but one last time for emphasis. If you’re not sure what setting to pick on your router, always pick the most secure, and for any route made after 2010 or so, that’s WPA 2 AES or WPA 3. On most routers we’ve seen certified prior to 2018, the options are generally WEP, WPA TKIP, and WPA2 AES—with perhaps a WPA TKIP + WPA2 AES compatibility mode thrown in for good measure. If this is what you’re router offers you, set your router to WPA2 AES. On routers certified after 2018 especially after the July 1, 2020 deadline, you’ll find WPA3 and WPA2/WPA3 compatibility modes. We strongly recommend trying pure WPA3 mode. If everything works, great! You’re rocking the best Wi-Fi security setup you can. If you find there are a few older mission-critical items in your home like a Wi-Fi thermostat that won’t play nice with WPS then fall back to WPA2/WPA3 compatibility mode. But whatever you do, it’s time to shelve all the lesser Wi-Fi security protocols like WEP, WPA, and WPA2 TKIP for good. The Best Wi-Fi Routers of 2023 Best Wi-Fi Router Overall ASUS AX6000 RT-AX88U TP-Link Archer AX3000 AX50 TP-Link Archer A8 ASUS GT-AX11000 Tri-Band Router ASUS ZenWiFi AX6600 XT8 2 Pack TP-Link Deco X20 NETGEAR Nighthawk CAX80 ExpressVPN Aircove TP-Link AC750 ASUS ROG Rapture GT-AXE11000 READ NEXT › The Difference Between WEP, WPA, and WPA2 Wi-Fi Passwords› How to Protect Your Wi-Fi From FragAttacks› How-To Geek Is Looking for a Security Writer› Fix Why Does My Wi-Fi Say “Weak Security” on iPhone?› The Best Budget Wi-Fi Routers of 2023› How to Change Your Wi-Fi Network’s Name and Password› 8 Mistakes to Avoid When Buying a Wi-Fi Router› The Best Wi-Fi Cards in 2023 The type of security algorithms and encryption specifications of your Wi-Fi network largely determine how speedy and secure it is. That's why it's vitally important that you know what they are, what they stand for, and exactly what they do. Terminology In articles about network security, the terms 'protocol', 'standard' and 'certification' and 'program' are often used interchangeably when talking about encryption. What one source, website, or individual refers to as a 'protocol', for instance, might be referred to as a 'standard' elsewhere. The first things we examine below are certification programs. WPA, WPA2, and WPA3 are the three wireless network certification programs we'll be discussing in this article. These are occasionally referred to as encryption standards themselves. Certification programs – in this case for Wi-Fi networks – use encryption protocols to secure data transmitted over a given Wi-Fi connection. An example would be TKIP, the Temporal Key Integrity Protocol. How encryption protocols encrypt data is determined by ciphers, which are essentially just algorithms that shape the process. An example of this is AES which, confusingly, stands for Advanced Encryption Standard. Authentication methods or mechanisms are used to verify wireless clients, such as a Pre-Shared Key PSK, which is essentially just a string of characters. In cryptography this is called a 'shared secret' – it's a piece of data known only by entities involved in the secure communication it is being used for. An example of a PSK would be a Wi-Fi password, which can be up to 63 characters and usually initiates the encryption process. Security certification programs All networks need security programs, certifications, and protocols to keep the devices and users on the network safe. For wireless networks, a number of security certification programs have been developed, including WPA and WPA2. Wired Equivalent Protection WEP WEP was the original wireless network security algorithm, and as you can probably tell by the name, was designed to supply a given network with the security of a wired one. WEP uses the RC4 cipher. However, WEP isn't very secure at all, which is why it's not commonly used, and is wholly obsolete when compared to later protocols. Everyone on the network shares the same key – a form of static encryption – which means everyone is put in harm's way if one client is exploited. Wi-Fi-Protected Access WPA WPA is a more modern and more secure security certification for wireless networks. However, it is still vulnerable to intrusion and there are more secure protocols available. Wireless networks protected by WPA have a pre-shared key PSK and use the TKIP protocol – which in turn uses the RC4 cipher – for encryption purposes, making WPA-PSK. This is also not the most secure program to use because using PSK as the cornerstone of the certification process leaves you with similar vulnerabilities to WEP. Wi-Fi-Protected Access 2 WPA2 WPA2 is another step up in terms of security and makes use of the Advanced Encryption Standard AES cipher for encryption, which is the same cipher the US military uses for a lot of its encryption. TKIP is replaced with CCMP – which is based on AES processing – providing a better standard of encryption. There is both a personal version which supports CCMP/AES and TKIP/RC4 and an enterprise version which supports EAP – the Extensible Authentication Protocol – as well as CCMP. See our guide to WPA2 for more information about it. Wi-Fi-Protected Access 3 WPA3 WPA3 was only recently developed in the last three years and isn't yet in widespread use. WPA3 also has Personal and Enterprise options, and is described by the Wi-Fi Alliance as having New features to simplify Wi-Fi security, enable more robust authentication, deliver increased cryptographic strength for highly sensitive data markets, and maintain resiliency of mission-critical networks. Ciphers and protocols Above, we looked at exactly which certification programs are the most up-to-date, as well as what encryption protocols and ciphers they use to secure wireless networks. Here, we'll briefly run through how they work. Ciphers Ciphers – which, as we mentioned before, determine the process by which data is encrypted – are an important part of securing a wireless network. RC4 – short for Rivet Cipher 4 – which is a stream cipher. Stream ciphers encrypt data one bit at a time, using a pseudo-random bit generator to create an 8-Bit number. Created way back in 1987, it was lauded for its speed and simplicity for many years but now is recognized to have several vulnerabilities that leave it open to man-in-the-middle attacks, amongst others. Vast improvement has come in the form of the AES, which is an acronym for Advanced Encryption Standard. AES is a symmetric block cipher. It's symmetric in the sense that there is just one key used to decipher the information and it is classified as a 'block' cipher because it encrypts in blocks of bits instead of bite-by-bite like a stream cipher. It uses key lengths of 256 bits, which makes it virtually impenetrable to brute force attacks on present computing power. AES encryption is the US federal standard for encryption and is considered the strongest widely-used form ever created. Encryption protocols The Temporal Key Integrity Protocol was designed with WEP's vulnerabilities in mind. WEP used a 64-bit or 128-bit encryption key that had to be entered on wireless access points and devices manually, and the key itself would never change. TKIP, on the other hand, implements a per-packet key, meaning that it creates a new 128-bit key for each data packet in a dynamic fashion. The Counter Mode Cipher Block Chaining Message Authentication Code Protocol is the step up from TKIP largely because it uses the AES cipher, the security-maximizing properties of which were discussed above. Different combinations and which is safest? Below is a rundown of some of the different combinations the wireless networks you regularly connect to might use for their security. Option Option Safety level Open Network This is the kind of network you might find in a café or outside at a tourist spot. It requires no password which means anyone can connect to the network. Very Risky WEP 64/128 Although WEP 128 is more secure than WEP 64 – it uses a bigger encryption key – these are both old, outdated, and therefore vulnerable. Very Risky WPA-PSK TKIP This is a pairing of the older security certification program with an outdated encryption protocol, so isn't very secure either. Risky WPA2-PSKTKIP Using an outdated encryption protocol that isn't secure defeats the purpose of using WPA2, which is a secure Wi-Fi certification program. Risky WPA2-PSK AES This is the latest encryption cipher paired with the most up-to-date and secure certification program, combining to make the most secure wireless network option. Secure

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