Software Engineering › Key terms › Y12 Secure Software Architecture › Cryptography
Cryptography
Term Y12 Secure Software Architecture
Definition
Converting readable data (plain text) into unreadable cipher text with an algorithm and key so only the holder of the right key can read it; also supports hashing and digital signatures.
Example: Encryption keeps the data confidential.
Found in: syllabus, school notes.
Where it is used in the test
Syllabus area: Y12 Secure Software Architecture.
Question types it can appear in
- Multiple choice: Pick the option that matches the definition or example.
- Fill in the blanks: Choose this term to complete a statement or table.
- Short answer: Define, outline or explain it and tie it to the scenario.
Where it has appeared in the paper
Secure Software Architecture (Part B). Part letters follow each paper’s own layout.
Related past questions
- Sample exam Q3 (1 mark): Encryption Secure Software Architecture (Part B) · 1 mark
These are the questions the flashcard set links to this term. Open each one and compare your answer with its marking criteria.
Study links
- Flashcard: Cryptography in Secure Software Architecture (Year 12) · study that set
- Memorise: Cryptography and sandboxing in 'security by design'
- Notes: Use and explain the contribution of cryptography and sandboxing to the ‘security by… (Secure Software Architecture (Year 12))
- Notes: Cryptography and sandboxing in 'security by design' (Secure Software Architecture (Year 12))
- Notes: Apply and describe the benefits of collaboration to develop safe and secure software,… (Secure Software Architecture (Year 12))
How to use it in an answer
A model sentence
“Converting readable data (plain text) into unreadable cipher text with an algorithm and key so only the holder of the right key can read it; also supports hashing and digital signatures.” Then apply it: Encryption keeps the data confidential.
In a short answer, give the definition in your own words first, then tie it to the situation in the question. Do not copy the example above unless it fits the scenario.
Command words used with it
- Identify: Recognise and name. (Sample exam Q3 (1 mark): Encryption)
Technique for the question types
- Multiple choice: Read all four options, rule out wrong ones, pick one; no penalty for guessing so never leave blank.
- Fill in the blanks: Choose the right word from a list; use exact syllabus terms.
- Short answer: One clear point per mark, use the stimulus and course terms, and answer the command word.
Worked answers from the marking guidelines
Sample exam Q3 (1 mark): Encryption (1 mark): criteria and sample answer
Criteria
1: Identifies the correct answer.
Sample answer
Implement data encryption
Common mistakes
- Use the term exactly as the syllabus words it, then link it to the scenario in the question; the 2025 feedback repeatedly rewards using the stimulus.
- Answer the command word: outline gives main points only, explain gives a reason or cause, discuss gives both sides.
Related terms
Same group in the syllabus: Security by design · Sandboxing · Privacy by design · Proactive not reactive · Embed privacy into design · Respect for user privacy