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Not always a "passphrase" |
"impossible" is hyperbole; based on current knowledge, sure, it is computationally infeasible if well-implemented |
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'''Client-side encryption''' is the [[cryptographic]] technique of [[encrypting]] data on the sender's side, before it is transmitted to a [[server (computing)|server]] such as a cloud storage service.<ref name=infosectoday>{{cite web |url= http://www.infosectoday.com/Articles/Client-Side_Encryption.htm |title= Why Client-Side Encryption Is the Next Best Idea in Cloud-Based Data Security |date= 2015 |accessdate= February 21, 2016 |author= Tunio Zaffer |website= Information Security Today |publisher= Auerbach Publications}}</ref> Client-side encryption features an encryption key that is not available to the service provider, making it difficult or impossible for service providers to decrypt hosted data. Client-side encryption allows for the creation of [[zero-knowledge proof|zero-knowledge applications]] whose providers cannot access the data its users have stored, thus offering a high level of privacy.<ref name=infosectoday/>
Client-side encryption is widely recognized{{who}} as an exceptionally robust data security strategy. By eliminating the potential for data to be viewed by service providers (or third parties that compel service providers to deliver access to data), client-side encryption ensures that data and files that are stored in the cloud can only be viewed on the client side of the exchange. This prevents data loss and the unauthorized disclosure of private or personal files, providing increased peace of mind for both personal and business users.<ref name=infosectoday/>
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