Podcast
Questions and Answers
What is the purpose of a digital signature?
What is the purpose of a digital signature?
- To verify the date and time of the message
- To hide the contents of the message
- To encrypt the message
- To authenticate the creator of the message (correct)
What does the digital signature function include?
What does the digital signature function include?
- Only message verification
- Both authentication and message verification (correct)
- Only authentication function
- Only encryption of the message
In a key-only attack, what does the attacker know?
In a key-only attack, what does the attacker know?
- A set of messages and their signatures
- The creator's public key (correct)
- The creator's private key
- The date and time of the signature
What does a known message attack involve?
What does a known message attack involve?
What does a generic chosen message attack allow the attacker to do?
What does a generic chosen message attack allow the attacker to do?
How does message authentication protect parties exchanging messages?
How does message authentication protect parties exchanging messages?
What is the purpose of performing the signature function first before an outer confidentiality function?
What is the purpose of performing the signature function first before an outer confidentiality function?
What technique is universally accepted to deal with threats related to the security of a sender's private key?
What technique is universally accepted to deal with threats related to the security of a sender's private key?
What primary function is the Digital Signature Standard (DSS) designed to provide?
What primary function is the Digital Signature Standard (DSS) designed to provide?
In the RSA approach, what is encrypted using the sender's private key to form the signature?
In the RSA approach, what is encrypted using the sender's private key to form the signature?
What is a fundamental difference between the Digital Signature Standard (DSS) and RSA approach?
What is a fundamental difference between the Digital Signature Standard (DSS) and RSA approach?
What is the recommended technique for ensuring the security of the sender's private key if it is lost or stolen?
What is the recommended technique for ensuring the security of the sender's private key if it is lost or stolen?
What is a key requirement for a digital signature?
What is a key requirement for a digital signature?
Which category does a secure hash function fall into for digital signatures?
Which category does a secure hash function fall into for digital signatures?
In a direct digital signature scheme, who are the parties involved?
In a direct digital signature scheme, who are the parties involved?
How is a digital signature formed in a direct digital signature scheme?
How is a digital signature formed in a direct digital signature scheme?
What can provide confidentiality in a digital signature along with the message and signature encryption?
What can provide confidentiality in a digital signature along with the message and signature encryption?
Which aspect of a digital signature makes it computationally infeasible to forge?
Which aspect of a digital signature makes it computationally infeasible to forge?
