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nonrepudiation n
comp., MS	não rejeição (The use of cryptography to ensure that someone performing an action on a computer cannot falsely deny that they performed that action. A system with nonrepudiation provides undeniable proof that a user took a specific action such as transferring money, authorizing a purchase, or sending a message)
comp., MS, Braz.	não repúdio (The use of cryptography to ensure that someone performing an action on a computer cannot falsely deny that they performed that action. A system with nonrepudiation provides undeniable proof that a user took a specific action such as transferring money, authorizing a purchase, or sending a message)
English thesaurus
nonrepudiation n
IT	The assurance that a party cannot later deny originating data; provision of proof of the integrity and origin of the data and that can be verified by a third party (A digital signature can provide non-repudiation)