Attribute-Based Encryption Brent Waters SRI International Server Mediated Access Control File 1 Access list: John, Beth, Sue, Bob Attributes: “Computer Science” , “Admissions” •Server stores data in clear •Expressive.

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Transcript Attribute-Based Encryption Brent Waters SRI International Server Mediated Access Control File 1 Access list: John, Beth, Sue, Bob Attributes: “Computer Science” , “Admissions” •Server stores data in clear •Expressive.