Robert J. Hansen rjh at
Fri Jan 2 00:38:42 CET 2015

> Sorry if I misunderstood, but I didn’t say that the photo ID should
> be allowed to be as large as possible, and this is not allowed anyway
> by, for example, apps like GPG Keychain.

It *is* allowed by the spec, and it’s the spec that’s the problem here.

> But I was wondering … instead of attaching a photo to a public key,
> why not attach a hash of the photo using an image hashing
> algorithm?

This is sort of what does; it lets you post cryptographically-signed statements like “this is my Twitter account” to let other people have confidence that a given social media account really does belong to you.

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