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Question 14 of 52
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Hot Area / Sentence Completion
Select the appropriate option to complete the statement. Click Check Answer below to see the marked solution.
Hotspot Solution:
True. Digitally signing a document is a process that uses the signer's private key to create a unique digital signature. This signature is a cryptographic hash of the document that's encrypted with the private key. True. To verify the authenticity and integrity of a digitally signed document, you need the signer's public key. The public key, which is mathematically linked to the private key, is used to decrypt the digital signature. If the decrypted hash matches a new hash generated from the document, the signature is valid, confirming the document hasn't been tampered with and was indeed signed by the private key's owner. False. Verifying a digital signature requires the public key of the signer, not their private key. The private key is meant to be kept secret and is only used for signing. If the private key were needed for verification, the entire system would be insecure, as it would have to be shared.
Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.
It should be Y, Y and N. Verification never requires the private key. The private key is only used for signing, not for verification. Using a private key for verification would be a security risk.
YYN. Private key Purpose: To create the digital signature. Storage: Kept private and secured on the owner's computer. Security: Must never be shared, as compromising it would allow an imposter to create valid signatures. Public key Purpose: To verify the digital signature and confirm the document's origin and integrity. Storage: Available publicly, often embedded within a digital certificate. Security: Cannot be used to create a signature; it can only verify a signature made with its corresponding private key
True. Digitally signing a document is a process that uses the signer's private key to create a unique digital signature. This signature is a cryptographic hash of the document that's encrypted with the private key. True. To verify the authenticity and integrity of a digitally signed document, you need the signer's public key. The public key, which is mathematically linked to the private key, is used to decrypt the digital signature. If the decrypted hash matches a new hash generated from the document, the signature is valid, confirming the document hasn't been tampered with and was indeed signed by the private key's owner. False. Verifying a digital signature requires the public key of the signer, not their private key. The private key is meant to be kept secret and is only used for signing. If the private key were needed for verification, the entire system would be insecure, as it would have to be shared.