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End-to-end encryption (E2EE) is a method of implementing a secure communication system where only communicating users can participate. No one else, including the system provider, telecom providers , Internet providers or malicious actors , can access the cryptographic keys needed to read or send messages.
Historically, various forms of encryption have been used to aid in cryptography. Early encryption techniques were often used in military messaging. Since then, new techniques have emerged and become commonplace in all areas of modern computing. [1] Modern encryption schemes use the concepts of public-key [2] and symmetric-key. [1]
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[48] [2] Matrix is an open communications protocol that includes Olm, a library that provides optional end-to-end encryption on a room-by-room basis via a Double Ratchet Algorithm implementation. [2] The developers of Wire have said that their app uses a custom implementation of the Double Ratchet Algorithm.
End-to-end or End to End may refer to: End-to-end auditable voting systems, a voting system; End-to-end delay, the time for a packet to be transmitted across a network from source to destination; End-to-end encryption, a cryptographic paradigm involving uninterrupted protection of data traveling between two communicating parties; End-to-end ...
Logo of OMEMO. OMEMO is an extension to the Extensible Messaging and Presence Protocol for multi-client end-to-end encryption developed by Andreas Straub.According to Straub, OMEMO uses the Double Ratchet Algorithm "to provide multi-end to multi-end encryption, allowing messages to be synchronized securely across multiple clients, even if some of them are offline". [1]
Over the years, various mechanisms have been proposed to encrypt the communication between email servers. Encryption may occur at the transport level (aka "hop by hop") or end-to-end. Transport layer encryption is often easier to set up and use; end-to-end encryption provides stronger defenses, but can be more difficult to set up and use.
In many end-to-end encryption services, to initiate communication a user will reach out to a central server and request the public keys of the user with which they wish to communicate. [2] If the central server is malicious or becomes compromised, a man-in-the-middle attack can be launched through the issuance of incorrect public keys.