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Canonical Messagepack: add missing constraints #100

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Canonical Messagepack: add missing constraints #100

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8 changes: 5 additions & 3 deletions dev/crypto.md
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Expand Up @@ -33,11 +33,13 @@ A canonical msgpack encoding in Algorand must follow these rules:
3. Positive integer values must be encoded as "unsigned" in msgpack,
regardless of whether the value space is semantically signed or
unsigned;
4. Integer values must be represented in the shortest possible
encoding;
4. All variable length encoding values must be represented in the shortest possible;
encoding (integers, binary arrays, strings);
5. Binary arrays must be represented using the "bin" format family
(that is, use the most recent version of msgpack rather than the
older msgpack version that had no "bin" family).
older msgpack version that had no "bin" family);
7. Strings must be represented using the "str" format family (instead of "bin");
9. Structs must be encoded as maps (with the keys in lexicographic order as per rule 1) instead of being encoded as arrays.


### Domain Separation
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