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 Academic Year: | 2018/9 | |
| Owning Department/School: | Department of Computer Science | |
| Credits: | 6 [equivalent to 12 CATS credits] | |
| Notional Study Hours: | 120 | |
| Level: | Honours (FHEQ level 6) | |
| Period: |
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| Assessment Summary: | EX 100% | |
| Assessment Detail: |
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| Supplementary Assessment: |
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| Requisites: |
Before taking this module you must ( take CM10227 OR take XX10190 ) AND ( take 2 MODULES FROM {CM10196, CM20217} OR take MA10209 )
An elementary knowledge of number theory, as in chapters 1-2 of Davenport The Higher Arithmetic, is required to take this unit. | |
| Description:
| Aims: To introduce students to the techniques, tools and pitfalls of cryptography (including authentication etc.). Learning Outcomes: 1. Students will understand the basic mathematics behind private-key and public-key cryptography; 2. Students will be able to describe several well-known techniques for cryptographic security and authentication. Skills: Application of Number (T/F, A), Problem Solving (T/F). Content: Introduction to the problem: security, privacy, authentication, repudiation, revocation. The key distribution problem: public vs private keys. The mathematics of cryptography: Fermat-Euler Theorem, structure of finite fields and elliptic curves. Cryptographic algorithms: Diffie-Hellman, RSA, El-Gamal. Cryptanalysis: discrete logarithms, factoring. The Coppersmith attack. Elliptic Curve analogues. Private-key algorithms: DES, 3DES and AES. Common hashing algorithms: MD5, SHA-1. Characteristics of safe keys. Using cryptography: digital signatures: how to find the public key.Repudiation and revocation, examples in practice: PGP, digital certificates. | Before taking this module you must ( take CM10196 OR take MA10209 ) AND ( take CM10227 OR take XX10190 ) AND take CM20217 An elementary knowledge of number theory, as in chapters 1-2 of Davenport The Higher Arithmetic, is required to take this unit. |
| Programme availability: |
CM30173 is Optional on the following programmes:Department of Computer Science
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Notes:
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