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RFC 1924: RFC1924 states that 128-bit arithmetic be used. 2^128 =...

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Comment by Andrew Robb
Submitted on 6/22/2004
Related RFC: RFC 1924
Rating: Not yet rated	Rate this comment:
RFC1924 states that 128-bit arithmetic be used. 2^128 = 85^19.97 but it is easier to break the address into quartets and encode each quartet as a quintet of base-85 characters (like postscript). This still gives 20 characters for a 128-bit address as 85^5 = 2^32.047 (very little wasteage). The only difference from postscript base-85 encoding is in then in the character set.