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Re: [WebDNA] Encode cookies ONLY via "method=Base64"

This WebDNA talk-list message is from

2008


It keeps the original formatting.
numero = 101279
interpreted = N
texte = > It seems that this type of method may be subject to fail > due to small rounding errors when large numbers are > converted to/from scientific notation. Olin, that's exactly the reason why this won't work. The PRECISE value *must* be encrypted so it can be decrypted successfully later, but webdna's math context fails produce a precise value in scientific notation, so it's only useful for relatively small numbers. It would be nice to know the absolute precision of the math context, but we can already infer this since it always seems to end at 15 places. If it were more precise than 15 places we might expect it to display its full precision instead of hiding it in scientific notation, right? Too bad we cannot simply wrap the math context in a [format .40d] context and force a precise 40 character output, eh? :( Sincerely, Ken Grome Associated Messages, from the most recent to the oldest:

    
  1. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Stuart Tremain 2012)
  2. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Brian Fries 2012)
  3. Re: [WebDNA] Encode cookies ONLY via "method=Base64" ("Psi Prime Inc, Matthew A Perosi " 2012)
  4. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Govinda 2012)
  5. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Stuart Tremain 2012)
  6. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Donovan Brooke 2008)
  7. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Kenneth Grome 2008)
  8. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Kenneth Grome 2008)
  9. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Donovan Brooke 2008)
  10. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Kenneth Grome 2008)
  11. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Donovan Brooke 2008)
  12. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Kenneth Grome 2008)
  13. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Donovan Brooke 2008)
  14. Re: [WebDNA] Encode cookies ONLY via "method=Base64" ("Gary Krockover" 2008)
  15. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Donovan Brooke 2008)
  16. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Donovan Brooke 2008)
  17. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Marc Thompson 2008)
  18. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Bob Minor 2008)
  19. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Brian Fries 2008)
  20. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Marc Thompson 2008)
  21. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Patrick McCormick 2008)
  22. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Kenneth Grome 2008)
  23. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Brian Fries 2008)
  24. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Christer Olsson 2008)
  25. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Kenneth Grome 2008)
  26. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Donovan Brooke 2008)
  27. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Kenneth Grome 2008)
  28. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Kenneth Grome 2008)
  29. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Kenneth Grome 2008)
  30. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Kenneth Grome 2008)
  31. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Kenneth Grome 2008)
  32. Re: [WebDNA] Encode cookies ONLY via "method=Base64" ("Psi Prime, Matthew A Perosi " 2008)
  33. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Stuart Tremain 2008)
  34. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Bob Minor 2008)
  35. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Kenneth Grome 2008)
  36. RE: [WebDNA] Encode cookies ONLY via "method=Base64" ("Olin Lagon" 2008)
  37. RE: [WebDNA] Encode cookies ONLY via "method=Base64" ("Olin Lagon" 2008)
  38. Re: [WebDNA] Encode cookies ONLY via "method=Base64" ("Psi Prime, Matthew A Perosi " 2008)
  39. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Kenneth Grome 2008)
  40. Re: [WebDNA] Encode cookies ONLY via "method=Base64" ("Psi Prime, Matthew A Perosi " 2008)
  41. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Kenneth Grome 2008)
  42. Re: [WebDNA] Encode cookies ONLY via "method=Base64" ("Psi Prime, Matthew A Perosi " 2008)
  43. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Kenneth Grome 2008)
  44. Re: [WebDNA] Encode cookies ONLY via "method=Base64" (Stuart Tremain 2008)
  45. [WebDNA] Encode cookies ONLY via "method=Base64" (Kenneth Grome 2008)
> It seems that this type of method may be subject to fail > due to small rounding errors when large numbers are > converted to/from scientific notation. Olin, that's exactly the reason why this won't work. The PRECISE value *must* be encrypted so it can be decrypted successfully later, but webdna's math context fails produce a precise value in scientific notation, so it's only useful for relatively small numbers. It would be nice to know the absolute precision of the math context, but we can already infer this since it always seems to end at 15 places. If it were more precise than 15 places we might expect it to display its full precision instead of hiding it in scientific notation, right? Too bad we cannot simply wrap the math context in a [format .40d] context and force a precise 40 character output, eh? :( Sincerely, Ken Grome Kenneth Grome

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