User Zooko

59 votes

Hashing or encrypting twice to increase security?

answered Oct 1, 2011 at 5:34

50 votes

Accepted

What advantages does Keccak/SHA-3 have over BLAKE2?

answered Sep 26, 2016 at 21:39

32 votes

Guarding against cryptanalytic breakthroughs: combining multiple hash functions

answered Aug 4, 2011 at 22:11

19 votes

Is Convergent Encryption really secure?

answered Sep 23, 2011 at 16:12

10 votes

At the current time, is SHA256 the de facto standard for strong cryptographic hashes?

answered Oct 3, 2011 at 6:49

9 votes

Is it feasible to build a stream cipher from a cryptographic hash function?

answered Jul 17, 2011 at 3:38

6 votes

Accepted

Are these emerging threats against AES affecting your designs?

answered Aug 17, 2011 at 19:09

5 votes

Is key size the only barrier to the adoption of the McEliece cryptosystem, or is it considered broken/potentially vulnerable?

answered Jul 17, 2011 at 6:17

5 votes

UMAC: to what extent is it in use today?

answered Aug 6, 2011 at 16:51

3 votes

Reduction from signatures to encryption?

answered Jul 17, 2011 at 3:28

3 votes

Comparing Files: Is it better to use multiple hash algorithms or just one?

answered Sep 26, 2016 at 21:23

1 vote

Reduction from signatures to encryption?

answered Aug 3, 2011 at 16:34

Stack Exchange Network

12 Answers

Hashing or encrypting twice to increase security?

What advantages does Keccak/SHA-3 have over BLAKE2?

Guarding against cryptanalytic breakthroughs: combining multiple hash functions

Is Convergent Encryption really secure?

At the current time, is SHA256 the de facto standard for strong cryptographic hashes?

Is it feasible to build a stream cipher from a cryptographic hash function?

Are these emerging threats against AES affecting your designs?

Is key size the only barrier to the adoption of the McEliece cryptosystem, or is it considered broken/potentially vulnerable?

UMAC: to what extent is it in use today?

Reduction from signatures to encryption?

Comparing Files: Is it better to use multiple hash algorithms or just one?

Reduction from signatures to encryption?