Asymmetric ciphers - PowerPoint PPT Presentation

Information Systems Security

Information Systems Security. Cryptography Domain #3. Cryptography Now and Before. In the past – mainly used for confidentiality Today Still used for confidentiality Data integrity Source authentication Non-repudiation. Definitions. Cryptography Hiding the meaning of communication

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A Designer’s Guide to KEMs

A Designer’s Guide to KEMs. Alex Dent alex@fermat.ma.rhul.ac.uk http://www.isg.rhul.ac.uk/~alex. Asymmetric Ciphers. Involve two keys: a public key and a private key. Alice wants to send a message to Bob. Alice encrypts the message using Bob’s public key.

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T101 Networks

T101 Networks. 11 – Crypto Basics. Lesson Objectives. describe the goals of computer security explain some cryptographic terms describe simple encryption schemes such as substitution and transposition explain the difference between symmetric and asymmetric encryption. Network Security.

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