M - Technische Universität Dresden
M - Technische Universität Dresden
M - Technische Universität Dresden
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Authenticated anonymous declarations between<br />
business partners that can be de-anonymized<br />
trusted<br />
third party A<br />
¬<br />
<br />
document<br />
confirmation<br />
know<br />
pG (X,g)<br />
trusted<br />
third party B<br />
<br />
identification<br />
p G (X,g)<br />
identification<br />
user X pG‘ (Y,g)<br />
user Y<br />
Generalization:<br />
trustees for identities<br />
X → B 1 → B 2 → ... → B n → Y<br />
B‘ 1 → B‘ 2 → ... → B‘ m<br />
for<br />
pG‘ (Y,g)<br />
p A<br />
document<br />
for<br />
pG (X,g)<br />
confirmation<br />
know<br />
pG‘ (Y,g)<br />
p B<br />
error / attack tolerance (cf. MIXes)<br />
¬<br />
<br />
82
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