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Item 253 of 426 · Year 12: Programming for the Web, 19 of 59
Digital signature
Term Key terms bank
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Definition
A hash of a message encrypted with the sender's private key; the receiver checks it with the public key to confirm who sent it and that it was not changed.
Example: A signed update proves it came from the vendor.
Found in: syllabus, school notes.
Hash encrypted with sender's private key; proves origin and integrity.
Where you'll use it in the test
Syllabus area: Y12 Programming for the Web.
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.
How to use it
A model sentence
“A hash of a message encrypted with the sender's private key; the receiver checks it with the public key to confirm who sent it and that it was not changed.” Then apply it: A signed update proves it came from the vendor.
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
No linked question shows the command word for this term. Across the past short answer questions in this bank the words used most are: Explain, Outline, Describe, Compare, Classify, Analyse. Check the actual word in your question.
Go deeper
- Flashcard: Digital signature in Programming for the Web (Year 12) · study that set
- Memorise: Processes for securing the web
- Key terms bank entry: Digital signature
- Notes: Explain the processes for securing the web, including Secure Sockets Layer (SSL)… (Programming for the Web (Year 12))
- Notes: Fundamental software design security concepts (six words) (Secure Software Architecture (Year 12))
- Notes: Cryptography and sandboxing in 'security by design' (Secure Software Architecture (Year 12))
- Full term page: every question, note and marking comment for Digital signature
Check yourself
Explain “Digital signature” in one sentence, give an example, and name a question type that could test it.
Reveal the answer
A hash of a message encrypted with the sender's private key; the receiver checks it with the public key to confirm who sent it and that it was not changed.
Example: A signed update proves it came from the vendor.
Could be tested as: Multiple choice, Fill in the blanks, Short answer.
Quick multiple choice
A digital signature on a document provides:
- Anonymity for the sender
- Compression of the document
- Faster delivery
- Authenticity of the sender and integrity of the document
Show the answer
D
The sender signs a hash of the document with their private key; others verify with the public key. If the document changed, verification fails.
Source: original (written for this study pack; not a NESA question). Open it in the multiple-choice bank.