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Dingo13
  • Member for 11 years
  • Last seen more than a month ago
25 votes
4 answers
22k views

The exact difference between a permutation and a substitution

22 votes
1 answer
14k views

Does collision resistance imply (or not) second-preimage resistance?

13 votes
1 answer
3k views

Difference between computational and statistical indistinguishabilities

13 votes
1 answer
5k views

Proofs by reduction and times of adversaries

13 votes
2 answers
4k views

Is a small size block cipher usable?

9 votes
4 answers
7k views

Security proofs for CBC mode

9 votes
1 answer
11k views

How do RSA and ECDSA differ in signing performance?

8 votes
8 answers
3k views

A block cipher with independent keys for each round

8 votes
2 answers
2k views

What is the definition of "security beyond the birthday paradox"?

8 votes
5 answers
7k views

AES decryption vs encryption speed

8 votes
1 answer
2k views

2-party private set intersection

7 votes
1 answer
1k views

Is the RSA signature attack from Desmedt and Odlyzko practical?

7 votes
2 answers
2k views

OCB and GCM security

7 votes
1 answer
2k views

Proofs of security methodologies

5 votes
1 answer
439 views

Questions about the ideal cipher model

5 votes
1 answer
3k views

Signature with appendix

5 votes
1 answer
1k views

Functions that are only second-preimage resistant?

5 votes
1 answer
2k views

Unforgeability and type of adversary

5 votes
3 answers
5k views

Cryptography and FPGA

5 votes
1 answer
359 views

McEliece and cryptanalysis

4 votes
2 answers
2k views

Why does PSS produce an EM message that's almost as long as the modulus?

4 votes
2 answers
848 views

Does CTR mode yield a PRF?

4 votes
1 answer
6k views

Hash functions with or without secret key

4 votes
2 answers
3k views

Secure use-cases of block cipher with 64-bit block size

4 votes
2 answers
647 views

Hash function based on block cipher (and proof of security in the PRP model)

3 votes
2 answers
288 views

Have these compositions of block ciphers the same security?

3 votes
2 answers
449 views

Composition of block ciphers and 3DES

3 votes
3 answers
584 views

Construct a random permutation from a random function?

3 votes
2 answers
582 views

PRP, PRF and modular arithmetic

3 votes
1 answer
460 views

The exact definition of a symmetric encryption