[dundee] Good example of encryption problems

Robert Ladyman it at file-away.co.uk
Tue May 19 07:32:07 UTC 2009


I came across this example in a discussion of block cyphers in ECB mode: a 
picture is definitely worth a thousand words.

[Quote]
...
this is tux:
http://upload.wikimedia.org/wikipedia/commons/5/56/Tux.jpg

and this is tux encrypted with a block cypher in ECB mode:
http://upload.wikimedia.org/wikipedia/commons/f/f0/Tux_ecb.jpg

regardless of the type of block cypher (3DES, AES ...) ECB is a bad choice for 
an encryption mode; unless you are showing someone this kind of blunder.

[end quote]

-- 

Robert Ladyman
File-Away Limited, 32 Church Street, Newtyle
Perthshire, PH12 8TZ SCOTLAND
Registered in Scotland, Company Number SC222086
Tel: +44 (0) 1828 898 158
Mobile: +44 (0) 7732 771 649
http://www.file-away.co.uk




More information about the dundee mailing list