New answers tagged

0 votes

How can LCG based stream ciphers be broken?

For the cipher formula to work, $A$ must be coprime to $m$ and exists, which means ${(S_2 - S_3)}\over{(S_1 - S_2)}$ must also be coprime to $m$ and also exists. After excluding duplicate factors of ...
DannyNiu's user avatar
  • 9,207
0 votes

What is the advantage of CFB over OFB?

CFB allows random access. I can start decrypting at any offset, because all the information I need to decrypt a block is the encryption key, the IV, the encrypted block itself and the next encrypted ...
Mecki's user avatar
  • 187
1 vote

BLAKE3 for Block and Stream ciphers?

Let's start with the stream cipher idea, since it's the simplest one. BLAKE3 already supports arbitrary-length outputs, so when you key it it can be trivially used as a stream cipher by hashing an ...
Samuel Neves's user avatar
  • 12.5k
1 vote
Accepted

Is it impossible to improve plaintext attack on Zip crypto in trade of memory vs plaintext bytes requirement?

Yes, the algorithm is improvable in terms of modern computers but i only found one possible point of improvement which removing Z reduction which will then reduce the amount of required plaintext ...
terry franklin's user avatar

Top 50 recent answers are included