page_title: Mix network
hierarchical_section_title: Mix network
caption_attribution_description: English: Basic decryption mix netEspañol: Una red de mezcla simple. Los mensajes son cifrados bajo una secuencia de claves públicas. Cada nodo de mezcla remueve el cifrado usando su clave privada. El nodo cambia el órden de los mensajes y transmite el resultado al siguiente nodo.
context_page_description: Mix networks are routing protocols that create hard-to-trace communications by using a chain of proxy servers known as mixes which take in messages from multiple senders, shuffle them, and send them back out in random order to the next destination. This breaks the link between the source of the request and the destination, making it harder for eavesdroppers to trace end-to-end communications. Furthermore, mixes only know the node that it immediately received the message from, and the immediate destination to send the shuffled messages to, making the network resistant to malicious mix nodes.
  Each message is encrypted to each proxy using public key cryptography; the resulting encryption is layered like a Russian doll with the message as the innermost layer. Each proxy server strips off its own layer of encryption to reveal where to send the message next. If all but one of the proxy servers are compromised by the tracer, untraceability can still be achieved against some weaker adversaries.
  The concept of mix networks was first described by David Chaum in 1981. Applications that are based on this concept include anonymous remailers, onion routing, garlic routing, and key-based routing.
context_section_description: Mix networks are routing protocols that create hard-to-trace communications by using a chain of proxy servers known as mixes which take in messages from multiple senders, shuffle them, and send them back out in random order to the next destination (possibly another mix node). This breaks the link between the source of the request and the destination, making it harder for eavesdroppers to trace end-to-end communications. Furthermore, mixes only know the node that it immediately received the message from, and the immediate destination to send the shuffled messages to, making the network resistant to malicious mix nodes.
  Each message is encrypted to each proxy using public key cryptography; the resulting encryption is layered like a Russian doll (except that each "doll" is of the same size) with the message as the innermost layer.  Each proxy server strips off its own layer of encryption to reveal where to send the message next.  If all but one of the proxy servers are compromised by the tracer, untraceability can still be achieved against some weaker adversaries.
  The concept of mix networks was first described by David Chaum in 1981.  Applications that are based on this concept include anonymous remailers (such as Mixmaster), onion routing, garlic routing, and key-based routing (including Tor, I2P, and Freenet).
caption: Simple decryption mix net. Messages are encrypted under a sequence of public keys. Each mix node removes a layer of encryption using its own private key. The node shuffles the message order, and transmits the result to the next node.
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