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Aug
22
awarded  Supporter
Aug
22
answered How are secure hashing and encryption algorithms proven?
Aug
22
comment Which causes longer “break” time (in general)?
In fact, if you're thinking of how to encode text before encrypting it, your kind of lengthening will only make it easier for patterns to be detected statistically. You'd be better off compressing your plaintext.
Jan
28
answered What are the differences between proofs based on simulation and proofs based on games?
Dec
13
answered Polynomials and efficient computability
Dec
13
comment Transforming simplest protocol into a Sigma-protocol
What is your (or your lecturer's) definition of a Sigma-protocol? I'm presuming (s)he is including full ZK among the properties since the question mentions "only HVZK", is that what you're after?
Jul
23
awarded  Teacher
Jul
23
answered Additive ElGamal cryptosystem using a finite field