2
$\begingroup$

What are "reduced variants" of stream ciphers and how do they relate to lightweight cryptography?

How do their internal states compare to those of non-reduced variants? Security aspects?

$\endgroup$
0
$\begingroup$

I am aware of reduced variants of Salsa20 (Salsa20/12 and Salsa20/8). These are variants of Salsa20 using reduced number of hashing rounds (12 and 8 instead of standard 20).

This is the same idea as reducing number of rounds of a block cipher - you get better performance by undermining security.

$\endgroup$
  • $\begingroup$ Is Bivium a reduced variant of Trivium? $\endgroup$ – Roman Volkov Sep 20 '16 at 7:22
  • $\begingroup$ @RomanVolkov This paper says that Bivium-A and Bivium-B are reduced versions of Trivium. $\endgroup$ – Ella Rose Sep 20 '16 at 16:05

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.