Cambridge AS & A Level Computer Science
17.1Encryption, encryption protocols and digital certificates
Encryption, encryption protocols and digital certificates in Cambridge AS & A Level Computer Science: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic42 practice questions2 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 17.1.1Explain symmetric and asymmetric encryption with public and private keys, and how they give private and verified messages.
- 17.1.2Describe the purpose, benefits and drawbacks of quantum cryptography.
- 17.1.3Explain the purpose and use of SSL/TLS and digital certificates and signatures.
Lessons
- Full access
Encryption: symmetric and asymmetric keys
55 min
- Full access
SSL/TLS, digital certificates and digital signatures
55 min
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Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
Turn Encryption, encryption protocols and digital certificates into a strength.
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