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What are the differences between a digital signature, a MAC and a hash? - Cryptography Stack Exchange

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Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Ask questions, find answers and collaborate at work with Stack Overflow for Teams. Ask questions, find answers and collaborate at work with Stack Overflow for Teams. Explore Teams Teams Q&A for work Connect and share knowledge within a single location that is structured and easy to search. A message may be accompanied with a digital signature, a MAC or a message hash, as a proof of some kind. Which assurances does each primitive provide to the recipient? What kind of keys are needed? These types of cryptographic primitive can be distinguished by the security goals they fulfill (in the simple protocol of "appending to a message"): Integrity: Can the recipient be confident that the message has not been accidentally modified? Authentication: Can the recipient be confiden

What are the differences between a digital signature, a MAC and a hash? - Cryptography Stack Exchange New: Stack Overflow For Agents. The next generation of knowledge exchange. Learn more . Stack Internal Knowledge at work Bring the best of human thought and AI automation together at your work. Explore Stack Internal What are the differences between a digital signature, a MAC and a hash? Ask Question Asked 13 years, 6 months ago Modified 2 years, 1 month ago Viewed 155k times 253 $\begingroup$ A message may be accompanied with a digital signature , a MAC or a message hash , as a proof of some

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