X hits on this document

Powerpoint document

AVALANCHE EFFECT IN THE FAMILY OF BLOCK CIPHERS “SD-(n,k)” - page 16 / 29

80 views

0 shares

0 downloads

0 comments

16 / 29

16

Avalanche effect in encryption

Results for “SD16-(20, k)” different modes CBC, OFB and CFB:

Random generated key and plaintext of 10000 bits

IV – first n letter from key

For OFB and CFB parameter r=8

Flipping one bit in last 4k letters in key cause already for k=1 50% different bits in ciphertext in all modes

Standard deviation varies between 0,30 and 0,38 in all modes

Document info
Document views80
Page views80
Page last viewedWed Jan 18 08:55:49 UTC 2017
Pages29
Paragraphs249
Words1260

Comments