Which cryptographic approach uses a private key to generate a verifiable code that proves the sender’s identity and guards data from tampering?
Digital signature
Steganography
Hash-based approach
Symmetric encryption
This technique uses an asymmetric key pair, where the private key is used to create a unique code. The matching public key confirms both who sent the data and that no changes occurred. The other choices lack the component that guarantees data integrity and proves the origin of the message through a private key signing mechanism. Hash-based approaches can detect changes but do not confirm the sender’s identity. Steganography hides information rather than vouching for authenticity. Symmetric encryption safeguards confidentiality but does not inherently provide a distinct signature tied to an individual’s private key.
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