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| bio | website | xagawa.net |
|---|---|---|
| location | ||
| age | ||
| visits | member for | 1 year, 1 month |
| seen | 23 hours ago | |
| stats | profile views | 4 |
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May 6 |
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Indistinguishability attack example What you should do is proposing an attack and estimating its advantage. How does your adversary choose two plaintexts? |
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Mar 27 |
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Alice trusts Bob only when Bob trusts Alice I guess "(optimistic) fair exchange" might be the answer. How about it? |
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Mar 20 |
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Proof of the standard pseudorandom generator + XOR encryption scheme in Goldreich Suppose the two absolute values are at most 1/(2p), then you get 1/p < |...| + |...| <= 2 * 1/(2p) = 1/p, that is, contradiction. |
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Mar 17 |
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Does Linear Cramer-Shoup have pseudo-random ciphertexts? Hi Henrick. Did you read the proof? In page 5, Shacham constructed a DLIN solver B from an IND-CCA2 distinguisher A. |
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Mar 13 |
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Zero-Knowledge Challenge-Responce Protocol Why don't you google with the keywords, say, "Sigma, DDH, Zero-Knowledge"? I found a nice lecture note written by Berry Schoenmakers. |
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Mar 10 |
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Zero-Knowledge Challenge-Responce Protocol My answer referred to the same point. As you know, r_{id} is the voter's identity. The polling station has (g,g^x,r_{id},\sigma) and the RA has x. If \sigma = r_{id}^x, then the RA can prove that (g,g^x,r,\sigma) is the DDH tuple. |
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Jan 17 |
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Is a steganographic technique which has a universal decoder novel/secure? From cryptographic view, Hopper's thesis (and relevant papers) will give concrete security definitions for steganography. dtic.mil/cgi-bin/GetTRDoc?AD=ADA457810 |
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Jan 2 |
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What are monotonic and non monotonic access structures in ABE ? Beimel's thesis is available at IACR's Ph.D Database iacr.org/phds/index.php?p=detail&entry=548 |
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Jul 27 |
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Several questions about Paillier cryptosystem Dear Community♦. I cannot understand why you add the comment, because Lieven asks the question on the same encryption key. |
