[tor-dev] How do Ed25519 relay IDs look like?

Damian Johnson atagar at torproject.org
Sat Aug 1 22:04:48 UTC 2020

> I was wondering why the base64 string is 43 characters long for a 32byte Ed25519 key.
> 32*8/6=42

That is because tor drops trailing '=' from base64 encoded values
within descriptors. Some fields indicate this within the spec, others


> I'd like to use "ed25519 identity" or even just "identity" here going
> forward.

Gotcha. The name of 'identity' makes me wonder how this relates to
relay fingerprints, which are the canonical identifier we use.

Regardless, the more we can standardize the terminology we use the
less confusing these fields will be.

Cheers! -Damian

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