Decimal encryption

Peter Gutmann pgut001 at cs.auckland.ac.nz
Wed Aug 27 11:35:43 EDT 2008


=?ISO-8859-15?Q?Philipp_G=FChring?= <pg at futureware.at> writes:

>Does anyone know a an algorithm that has reasonable strength and is able to
>operate on non-binary data? Preferrably on any chosen number-base?

I posted a description of how to perform encryption in limited subranges to
sci.crypt about ten years ago,
http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&threadm=5c8sin%24piv%40scream.auckland.ac.nz&rnum=1&prev=/groups%3Fq%3D%2B%2522ASCII%2522%2Bgroup:sci.crypt%2Bauthor:Peter%2Bauthor:Gutmann%26hl%3Den%26lr%3D%26ie%3DUTF-8%26as_drrb%3Db%26as_mind%3D12%26as_minm%3D5%26as_miny%3D1996%26as_maxd%3D17%26as_maxm%3D7%26as_maxy%3D1998%26selm%3D5c8sin%2524piv%2540scream.auckland.ac.nz%26rnum%3D1,
the code and a cleaned-up description is also in "Building Secure
Software" by John Viega and Gary McGraw.

Peter.

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