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Cloudflare warp for mac os4/13/2023 What do I need to do to properly handle iCloud Private Relay traffic? The same building blocks that power Cloudflare products were used to build support for Private Relay: our network, 1.1.1.1, Cloudflare Workers, and software like quiche, our open-source QUIC (and now MASQUE) protocol handling library, which now includes proxy support. QUIC, and closely related MASQUE, are the technologies that enable Private Relay to efficiently move data between multiple relay hops without incurring performance penalties. We’re also adept at building and working with modern encryption and transport protocols, including TLS 1.3 and QUIC. Our infrastructure makes sure traffic reaches every network in the world quickly and reliably, no matter where in the world a user is connecting from. We’re well suited to the task - Cloudflare operates one of the largest, fastest networks in the world. Cloudflare’s role as a ‘second relay’Īs mentioned above, Cloudflare functions as a second relay in the iCloud Private Relay system. Much more extensive information on how Private Relay works is available from Apple, including in the whitepaper “ iCloud Private Relay Overview” (pdf). Splitting connections in this way prevents websites from seeing user IP addresses and minimizes how much information entities “on path” can collect on user behavior. Cloudflare relays then forward traffic on to the destination server. Cloudflare-operated relays know only that it is receiving traffic from a Private Relay user, but not specifically who or their client IP address.Cloudflare), but is unable to see “inside” the traffic to Cloudflare. The first relay hands encrypted data to a second relay (e.g. the coffee shop you’re sitting in, or your home ISP) and the first relay (operated by Apple), but the server or website name is encrypted and not visible to either. The user’s original IP address is visible to the access network (e.g.Let’s look at what happens when we add Private Relay to the mix:īy adding two "relays" (labeled “Ingress Proxy” and “Egress Proxy” above), connection metadata is split: Here’s a diagram depicting what connection metadata is available to who when not using Private Relay to browse the Internet: To do this, Private Relay uses modern encryption and transport mechanisms to relay traffic from user devices through Apple and partner infrastructure before sending traffic to the destination website. The design of the iCloud Private Relay system ensures that no single party handling user data has complete information on both who the user is and what they are trying to access. ![]() ![]() How browsing works using iCloud Private Relay Additional material is available from Apple, including “ Set up iCloud Private Relay on all your devices”, and “Prepare Your Network or Web Server for iCloud Private Relay” which covers network operator scenarios in detail. In this post, we’ll explain how website operators can ensure the best possible experience for end users using iCloud Private Relay. Cloudflare is proud to work with Apple to operate portions of Private Relay infrastructure. ![]() ICloud Private Relay is a new Internet privacy service from Apple that allows users with iOS 15, iPadOS 15, or macOS Monterey on their devices and an iCloud+ subscription, to connect to the Internet and browse with Safari in a more secure and private way.
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