# Cambridge International A Level Computer Science (9618): Section 17: Security & Cryptography

> Asymmetric cryptography and RSA mathematics, digital signatures and hashing algorithms, digital certificates and Public Key Infrastructure (PKI), and quantum cryptography and quantum key distribution (QKD).

- **Track:** [Cambridge International A Level Computer Science (9618)](https://csmasters.dev/tracks/a-level-9618.md) (CAMBRIDGE A LEVEL 9618)
- **Module:** Section 17: Security & Cryptography
- **Total Lessons:** 4
- **URL:** https://csmasters.dev/tracks/a-level-9618/course_modules/17-security

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## Module Lessons

### Lesson 1: [17.1 Asymmetric Cryptography & RSA Mathematics](https://csmasters.dev/learn/a-level-9618/asymmetric-cryptography-and-rsa.md)
- **Estimated Duration:** 15 mins
- **XP Reward:** 30 XP
- **Access Level:** Open Theory (All-Access Practice)
- **HTML Link:** https://csmasters.dev/learn/a-level-9618/asymmetric-cryptography-and-rsa

### Lesson 2: [17.2 Digital Signatures & Cryptographic Hashing](https://csmasters.dev/learn/a-level-9618/digital-signatures-and-hashing.md)
- **Estimated Duration:** 15 mins
- **XP Reward:** 30 XP
- **Access Level:** Open Theory (All-Access Practice)
- **HTML Link:** https://csmasters.dev/learn/a-level-9618/digital-signatures-and-hashing

### Lesson 3: [17.3 Digital Certificates & Public Key Infrastructure](https://csmasters.dev/learn/a-level-9618/digital-certificates-and-pki.md)
- **Estimated Duration:** 15 mins
- **XP Reward:** 30 XP
- **Access Level:** Open Theory (All-Access Practice)
- **HTML Link:** https://csmasters.dev/learn/a-level-9618/digital-certificates-and-pki

### Lesson 4: [17.4 Quantum Cryptography & Key Distribution (QKD)](https://csmasters.dev/learn/a-level-9618/quantum-cryptography-and-qkd.md)
- **Estimated Duration:** 15 mins
- **XP Reward:** 30 XP
- **Access Level:** Open Theory (All-Access Practice)
- **HTML Link:** https://csmasters.dev/learn/a-level-9618/quantum-cryptography-and-qkd