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14 votes
2 answers
2k views

Given enough RSA signature values, is it possible to determine the public key value?

2 votes
1 answer
121 views

A query regarding SHA256 output hash structure vs input entropy?

32 votes
3 answers
13k views

Is 80 bits of key size considered safe against brute force attacks?

6 votes
1 answer
175 views

Parameters for high density SIS

5 votes
1 answer
252 views

Which is the smallest, cyclic in 3 directions, consistent structure of random values which can be hidden at the adversaries machine? (some comparison)

4 votes
0 answers
104 views

About the complexity of a path finding attack for a path encrypted with a block cipher (like AES). How many AES calculations count as secure?

0 votes
0 answers
53 views

Problem with implementation of Enigma Machine

0 votes
1 answer
41 views

Is Mersenne Twister hard to break if it has a reduced output?

2 votes
2 answers
1k views

How do we guarantee plaintext is coprime in RSA?

2 votes
1 answer
67 views

Why would the same cipher structure have a different optimal attack for different bit widths?

2 votes
2 answers
567 views

Is this approach able to protect against padding oracle attacks?

2 votes
2 answers
296 views

Is there a way to compare the 923 bit pairing based key with RSA or AES, etc

4 votes
3 answers
1k views

Safety of DSA key parameters sharing

0 votes
1 answer
83 views

RSA rsa residue class ring

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