Cryptographeur's user avatar
Cryptographeur's user avatar
Cryptographeur's user avatar
Cryptographeur
  • Member for 10 years, 4 months
  • Last seen more than 3 years ago
29 votes

Simply put, what does “perfect secrecy” mean?

17 votes
Accepted

Is there a way to generate sound one-time pads out of public information?

11 votes

What is the difference between a 'cipher' and a 'mode of operation'?

10 votes
Accepted

Is there a proof for showing any cryptogram is crackable?

10 votes
Accepted

AES mixcolumn stage

9 votes
Accepted

What is the importance of the $r$ and $c$ values for the Sponge Construction?

9 votes

Difference between lightweight, online and low memory Authenticated Encryption schemes

9 votes
Accepted

SHA-256-based stream cipher

8 votes

Why do some block cipher modes of operation only use encryption while others use both encryption and decryption?

7 votes
Accepted

How Multiplication Table is generated for GF(2^2) field

7 votes

In what way is XXTEA really vulnerable?

7 votes
Accepted

Can insecure algorithms be combined to form a secure algorithm?

7 votes

Why should I use Authenticated Encryption instead of just encryption?

7 votes
Accepted

Does SpongeWrap (from the Keccak team) absorb ciphertext or plaintext?

6 votes
Accepted

Is a simple stream cipher "partially homomorphic" if no integrity check is applied?

6 votes
Accepted

ML/NN Cryptanalysis

6 votes
Accepted

Chance in cryptography

6 votes
Accepted

Back up an information as $n$ pieces and require exactly $n-1$ to recover it

5 votes
Accepted

How is padding oracle attack mitigated by encrypt-then-MAC?

5 votes

KCV and compatibility with block cipher modes of operation

5 votes
Accepted

Is it possible to split a large AES encrypted string and decrypt the parts one by one?

5 votes
Accepted

If I have the unencrypted text and the encrypted text, can I calculate the key?

5 votes
Accepted

Increasing number of rounds in AES

4 votes
Accepted

Can we decrypt in this order when the message is encrypted twice?

4 votes
Accepted

Can we build authenticated encryption using Feistel Networks?

4 votes

AES column mixing and S-Box confusion

4 votes
Accepted

Why encrypting with private and public keys produce the same result?

4 votes
Accepted

ASCII: weakness

4 votes

Prove that two MACs with incremendal PRF application are not secure

4 votes

$f : \mathbb{Z}_n \rightarrow \mathbb{Z}^\times_n$?