Tagged Questions
2
votes
1answer
75 views
Question about the definition of a secure PRF
I'm taking a cryptography introduction course, and we're covering the definition of a secure PRF.
I understand the test goes as follows: A challenger picks a function $f$ such that
$f \leftarrow ...
1
vote
0answers
43 views
IND-CPA security scheme [duplicate]
Possible Duplicate:
CPA Secure Chosen plaintext scheme
The example for IND-CPA secure schemes given is generally:
for a random r,
$Enc_k(m) =(r|| E_k(r)$ $XOR$ $m)$ where $E$ is a $PRF$
...
5
votes
1answer
141 views
Goldreich-Goldwasser-Micali Construction
The Goldreich-Goldwasser-Micali construction allows to build a (cryptographically secure) pseudo-random function from of a (cryptographically secure) pseudo-random generator.
More formally, let $G: ...
