/[gzz]/manuscripts/Sigs/article.rst
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revision 1.87 by benja, Sun May 18 17:40:53 2003 UTC revision 1.88 by benja, Sun May 18 17:42:42 2003 UTC
# Line 245  Deterministic: a Full Digital Signature Line 245  Deterministic: a Full Digital Signature
245    
246    This needs to be reasoned out carefully.    This needs to be reasoned out carefully.
247    
 Ordered  
 -------  
   
 - Keep count of number of signatures made  
   
 - use bits of count for choosing  
   
 - this is basically a k-time signature made feasible  
   for large k  
   
 - mustn't lose count!  
   
 - can't copy key or restore from backup!  
   
 - any scheme mapping the *action* of signing uniquely to a number between 0 and `$q$`  
   will work.  
   
248  Probabilistic limited  Probabilistic limited
249  ---------------------  ---------------------
250    
# Line 288  Shorter signatures Line 271  Shorter signatures
271    it *is* possible to    it *is* possible to
272    revoke only that leaf, not the whole key.    revoke only that leaf, not the whole key.
273    
274    Ordered
275    -------
276    
277    - Keep count of number of signatures made
278    
279    - use bits of count for choosing
280    
281    - this is basically a k-time signature made feasible
282      for large k
283    
284    - mustn't lose count!
285    
286    - can't copy key or restore from backup!
287    
288    - any scheme mapping the *action* of signing uniquely to a number between 0 and `$q$`
289      will work.
290    
291  Analysis: Characterizing one-time signature schemes  Analysis: Characterizing one-time signature schemes
292  ===================================================  ===================================================
293    

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