All Questions
Tagged with timestamp authentication
4 questions
1
vote
2
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215
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How can Alice ping and authenticate Bob without any of them sharing their public keyes beforehand
Both hosts have just their public and private key pair (but they do not have the other party’s public key).
Bob should be authenticated
Assume that the two hosts share clocks that are synced, i.e ...
user285662
-3
votes
1
answer
762
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Authentication protocol based on hash function [closed]
Is it possible that Alice can authenticate Bob without using any secret information except her password, i.e they don't share any thing else. If so, how can I authenticate Alice and ensure the ...
- 1
0
votes
1
answer
2k
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Verification code generation and expiration
I am trying to implement an application that includes registration,
In order to register to the system the user shall enter his organization ID number let's say. To verify the user identity, a ...
- 103
14
votes
6
answers
12k
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What is the most credible timestamp I can create for a digital file?
Is it possible to create a timestamp that is so hard to fake, that it could be used as proof or simply strong evidence in a court of law, that something was not created after a certain point in time?
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- 300