Security concepts · Question 5 of 12
Which measure best ensures that a sender cannot credibly deny having sent a contract later on?
1 answer is correct. Easy
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Answer
- A A digital signature with the sender's private key
Explanation
A digital signature can only be created with the private key that the sender alone holds, which proves authorship (non-repudiation). With a shared symmetric key, the recipient could also have created the document.