non-repudiation
Noun
Meaning
non-repudiation (plural non-repudiations)
Alternative spelling of nonrepudiation
Synonyms
Examples
It is important to note that while technology such as cryptographic systems can assist in non-repudiation efforts, the concept is at its core a legal concept transcending the realm of technology.
However, PKE does not address the problem of non-repudiation, as the message could have been sent by anyone that has access to the receivers public key.
In security In a general sense non-repudiation involves associating actions or changes to a unique individual.
Note: In addition, other properties, such as authenticity, accountability, non-repudiation and reliability can also be involved."
Note that these authentication, non-repudiation etc. properties rely on the secret key not having been revoked prior to its usage.
Therefore, the purpose of digital signatures is to ensure the non-repudiation of the message being sent.