Add Base8 Spec #60
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Add Base8 Spec #60
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Stebalien
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Nov 16, 2019
hugomrdias
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- adds support for all the encoding in https://github.com/multiformats/multibase/blob/master/multibase.csv - better errors showing the invalid chars and inputs - `names` and `codes` export the full object that maps names/codes to base instances - two news methods exported, `encoding` and `encodingFromData` - added all the spec tests https://github.com/multiformats/multibase/tree/master/tests This module now only uses 2 base encoding implementations, 1 generalised rfc4648 and 1 generalised btc like. Note: `base8` deviates from the spec tests outputs but aligns with multiformats/multibase#60
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ribasushi
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@fabianhjr so far so good! Can we add a ## Decoding section as well? Feel free to liberally C/P from the 4648 spec. Also won't hurt to link to it: https://tools.ietf.org/html/rfc4648
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@hugomrdias when time permits can you check that the spec-as-written makes sense? You were the last to implement stuff in this area... |
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I think it would be best to wait until the encoding is a go before trying to spec the decoding. As far as I know this encoding would fit what was implemented in multibase-js however will wait for @hugomrdias. |
hugomrdias
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Jun 7, 2020
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Thanks @hugomrdias. The decoding section has been added @ribasushi. |
hugomrdias
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Jun 7, 2020
hugomrdias
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Stebalien
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Jun 9, 2020
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Hi @Stebalien, I think this is ready to be merged. UwU |
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🚀 |
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This is a first throw at specifying a Base8 encoding, solves some issues of #59 and multiformats/go-multibase#26
Currently the test vectors mapped to the octal value of each byte so encoding and decoding would be harder than need be and encoded bytearray values would be larger (if each byte is mapped to 3 chars) or unpredictable (if, as currently, there are some chars encoded to different octal lengths)
For example, the first test vector was:
(In chunks of 3)
["104","312","615","453","347","216","230","266","151","364","624","403","127","314","534","474","564","320","645","563","162","044","1"](In chunks of 8)
["10431261","54533472","16230266","15136462","44031273","14534474","56432064","55631620","441"]And
312seems to be the encoding ofesometimes in some places likeposition ≡ {1,2} mod 3.