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Results tagged with authentication
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user 64
Authentication is successfully validating that an entity you are communicating with is actually who they claim to be. The entity typically demonstrates who they are by showing they possess a secret that only they could know.
14
votes
advances in usability for cryptography/authentication
This is an active area of research. There have been attempts at creating usable security tools and lots of user studies of existing tools (typically with critical results).
A good anthology for work …
- 8,717
2
votes
Helper data authentication in PUFs
You can also think about PUFs in terms of challenges/responses. If I want to authenticate you with a PUF, I need to be in possession of it first. I make a list of challenges and determine, for each, t …
- 8,717
6
votes
Accepted
RSA-based authentication and key-agreement protocol
What you are looking for is authenticated key agreement with perfect forward secrecy based on certificates.
First, to address @Paulo's comment, TLS/SSL does provide this functionality with any of the …
- 8,717
2
votes
Hash or encryption function for challenge-response protocol?
You need to first understand the security properties you are trying to achieve. Possible security goals:
It shouldn't be possible to answer convincingly if you don't know the secret
If you do know t …
- 8,717
3
votes
What are advantages of using a HMAC over RSA with SHA-1 hashes?
The main advantage is speed: HMACs are much faster than an RSA signature.
Given the question says you are signing SHA-1 hashes, there is no need to use a hash function in composition with RSA since t …
- 8,717