14 Questions
What is the most fundamental problem that cryptography addresses?
Ensuring the security of communication over an insecure medium
What does 'confidentiality' mean in the context of secure communication?
Only the intended recipient can see the communication
What does 'integrity' mean in the context of secure communication?
The communication is generated by the alleged sender
What are the two possibilities for an insecure medium according to cryptography?
Passive attacker: the adversary can eavesdrop; Active attacker: the adversary has full control over the communication channel
What does 'steganography' rely on to hide the existence of a message?
Secrecy of method
What does 'cryptography' rely on to hide the meaning of a message?
Secrecy of a short key, not method
What is the security goal that ensures a message really originated from Alice?
Data authenticity
Which security goal prevents an adversary from reading message M?
Data privacy
What does non-repudiation refer to in the context of cryptography?
Tracing actions of an entity uniquely to that entity
Which term describes the assurance that private or confidential information is not made available to unauthorized individuals?
Confidentiality
What is the primary function of digital signatures in secure communication?
Ensuring non-repudiation
Which cryptographic method is also known as public-key encryption?
Asymmetric keys
'Cryptography' relies on transforming an intelligible message into one that is unintelligible and retransforming it back. What does this process ensure?
Confidentiality
'Cryptography' relies on transforming an intelligible message into one that is unintelligible and retransforming it back. What does this process ensure?
Confidentiality
Learn the basic goals of cryptography with Dr. Khalid Javeed, including ensuring the security of communication over insecure mediums and understanding concepts such as secure communication, confidentiality, integrity, and insecure mediums.
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