Questions tagged [traitor-tracing]
Traitor tracing describes an ability of specific cryptographic schemes that helps trace the source of leaks.
4
questions
2
votes
1answer
122 views
Traitor tracing - codeword properties
Let $c ≥ 2$. A code $C ⊂ Q^n$
is a $c$-frameproof code if for any set
$X ⊂ C$ with $|X| ≤ c$ we have
desc$(X) ∩ C = X$.
Thus the only codewords that a coalition of up to $c$ pirates is capable of ...
1
vote
1answer
76 views
Traitor tracing - determining a set of codewords
I am reading some notes and having trouble understanding the following example:
Let $F$ be a finite set of size $q$, where $q ≥ 2$. Let $n$ be an integer, where $n ≥ 2$.
For a subset $X ⊆ F^n$ of ...
1
vote
0answers
52 views
How do I prove the tracing part in a ring signature model?
I have a question about the article “efficient and multi-level privacy-preserving communication protocol for VANET” by H. Xiong et al.
I need the ID of malicious vehicle, but I could not prove how I ...
1
vote
1answer
294 views
Traitor-tracing PRF
I'm looking for a pseudorandom function (PRF) with "traitor-tracing" properties.
More specifically, I'd like there to be multiple equivalent keys, so I can give different parties different keys, but ...
