Chaum's unpatented ecash scheme

Ben Laurie ben at algroup.co.uk
Thu Aug 22 07:43:21 PDT 2002


Nomen Nescio wrote:
> Ben Laurie writes:
> 
> 
>>Note that the scheme as described (and corrected) is vulnerable to 
>>marking by the bank, and so is not anonymous. This is discussed and 
>>fixed in my paper on Lucre 
>>(http://anoncvs.aldigital.co.uk/lucre/theory2.pdf).
> 
> 
> Actually the scheme described based on Chaum's talk (corrected for
> probable typos) is essentially what you describe in your paper as the
> Type II Defence, in section 5.  Your analysis shows that it is not
> vulnerable to marking and is anonymous.
> 
> Speaking of anonymous, you should give credit in your paper to Anonymous
> for discovering the possibility of marking Lucre coins, in a coderpunks
> posting at
> http://www.mail-archive.com/coderpunks@toad.com/msg02186.html, and for
> inventing the Type II Defence, both in the posting above and amplifed
> at http://www.mail-archive.com/coderpunks@toad.com/msg02323.html.
> 
> It may seem pointless to credit anonymous postings, but it makes the
> historical record more clear.

Anonymous _is_ creditted, but I can add the specific URLs.

Cheers,

Ben.

-- 
http://www.apache-ssl.org/ben.html       http://www.thebunker.net/

Available for contract work.

"There is no limit to what a man can do or how far he can go if he
doesn't mind who gets the credit." - Robert Woodruff


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