yorkporc2

This post demonstrates how I can use a Blogspot hosted blog post to store Identity oriented claims that mirror those in my local keychain hosted x.509 certificate. The steps for achieving this are as follows:

1. Write post -- this creates the place holder your claims
2. Publish post -- this gets you a URL for the location of your claims
3. Generate Certificate -- using a generator of your choice [1][2] generate an x.509 certificate with a WebID watermark in the subjectAlternateName slot using an HTTP scheme URI based Name of the form: {Blog-Post-Permalink}#this e.g., http://kidehen.blogspot.com/2012/01/hcard-inside-post-as-identity-provider.html#this
4. Then return to your blog post and insert a hCard snippet that mirrors the identity claims in the x.509 certificate you've just generated (see snippet template and example further down)
5. Save and publish blog post
6. Use a WebID verifier [3][4] to verify you WebID i.e., lookup your Blog post for the claims made in your x.509 certificate (specifically, that your WebID identifies the Subject of the Certificate)
7. Done!