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Lecture 4 Lecture 4

Lecture 4 - PowerPoint Presentation

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Uploaded On 2016-03-06

Lecture 4 - PPT Presentation

Cryptographic Tools cont modified from slides of Lawrie Brown Message Authentication protects against active attacks verifies received message is authentic can use conventional encryption ID: 244522

encryption key hash public key encryption public hash data message digital private random numbers algorithm function authentication computationally infeasible algorithms secure functions

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