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Non-repudiation ensures that a party cannot deny the validity of a contract or communication that they participated in. In information assurance, non-repudiation techniques such as digital signatures and audit trails are used to provide evidence of the sender's identity and the integrity of the message. This helps prevent disputes or misunderstandings by proving the origin and delivery of the data.

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Information assurance provides restoration of information systems by incorporating all what except?

Information Assurance is the set of measures intended to protect and defend information and information systems by ensuring their availability, integrity, authentication, confidentiality, and non-repudiation. This measures includes providing for restoration of information systems by incorporating protection, detection, and reaction capabilities.


What is the purpose of Army Regulation 25-2?

Army Regulation 25-2, known as the Information Assurance, outlines the policies and procedures required to protect Army information and information systems from unauthorized access, use, disclosure, disruption, modification, or destruction. Its purpose is to ensure the confidentiality, integrity, availability, and non-repudiation of information exchanged within the Army network and reduce the risk of cyber threats.


What is a feature of digital signatures?

non-repudiation


Measures that protect and defend information and information systems by ensuring their availability integrity authentication confidentiality and non-repudiation?

Measures that protect and defend information and information systems include various security protocols and practices designed to ensure key elements such as availability, integrity, authentication, confidentiality, and non-repudiation. Availability ensures that information and systems are accessible when needed, while integrity guarantees that the data remains accurate and unaltered. Authentication verifies the identities of users and systems, and confidentiality protects sensitive information from unauthorized access. Non-repudiation ensures that actions taken by users can be verified and cannot be denied, establishing accountability within the system.


Is it true that non-repudiation ensures users cannot deny sending and or receiving data?

Non-repudiation only refers to the fact that a sender of a message cannot deny they sent it; since the relationship of the public/private key pairs makes it impossible to deny if they sent a message.Non-repudiation cannot be used by either a sender or a receiver of a message to deny they ever received it; it only can be used if a message was received.


What does the acronym DIACAP stand for?

DoD Information Assurance Certification and Accreditation Process (DIACAP)It is the title of DoD Instruction 8510.01, which defined the process for certification and accreditation of DoD information systems (computer, computer networks, etc.) for Information Assurance (confidentiality, integrity, availability, non-repudiation, etc.).It has since been replaced by the RMF process - although as of 2016 some packages were still being allowed to process for accreditation under DIACAP with ATO's issued for much shorter periods of time.


What is Non-repudiation in information assurance?

Non-repudiation is the inability to deny sending a message, and is usually accomplished via digital signatures or a trusted third party (TTP). If the signature is known to belong to the sender, then we can assume that any message sent using that signature was sent with the knowledge of the sender. Therefore, the sender can not later say, "I never sent a resignation letter" when we have a digitally signed message saying otherwise. This method is common with asymmetric (public key) cryptography. When using a TTP, the sender will send a message (signed or not) to a third party which the sender and receiver have previously agreed upon, the TTP then forwards the message to the final recipient(s). This method of transmission is generally used with symmetric (private key) cryptography. Because the TTP has received the message, they essentially act as witnesses, so the sender can not deny having sent a message. The caveat with non-repudiation is that we assume the keys have not been compromised - but that's another discussion. The mechanics of how these forms of cryptography work can be found elsewhere on this site, or at sites dedicated to IA, cybersecurity, and cryptography.


Who is responsible for Information Assurance?

Normally, a Senior Information Assurance Officer is responsible for Information Assurance.


Proving that a user sent an email message is known as?

non-repudiation


What are IA Tenants?

Confidentiality, Integrity, Availibilty, Authenticity and Non Repudiation


Knowing that encrypted information can only be viewed by those who have been provided the key is an example of which protection?

Confidentiality The other alternatives: Integrity, Availability, Non-Repudiation - don't fit


Non repudiation ensures users cannot deny sending and or receiving data?

True