A-Level Computer Science · Syllabus 17.1
Encryption, encryption protocols and digital certificates
Coursebook chapter 17: Security
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InteractiveSymmetric and Asymmetric Encryption17.1.1 Plain text, cipher text, symmetric and asymmetric key cryptography, private and verified messages with public and private keys, a toy key-pair lab and the real Paper 3 questions.Open →
InteractiveQuantum Cryptography17.1.2 The purpose of quantum cryptography, how eavesdropping is detected, benefits and drawbacks, an eavesdropper lab and the real Paper 3 questions.Open →
InteractiveSSL and TLS17.1.3 The purpose of SSL and TLS, the client-server handshake, the handshake and record protocols, when to use them and the real Paper 3 questions.Open →
InteractiveDigital Certificates and Signatures17.1.4 Digital certificates and how they are acquired, producing and checking digital signatures, a sign-and-verify lab and the real Paper 3 questions.Open →
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