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did:webs IIW37 Tutorial

If you're running into trouble in the process below, be sure to check the section Trouble Shooting below.

Run Docker containers with keripy and dkr

docker compose down
docker compose up -d
docker compose exec dkr /bin/bash

Create salt (seed) for AID private keys

kli salt

Example response:

0AAQmsjh-C7kAJZQEzdrzwB7

Create AID

Note: Replace with your actual salt

kli init --name controller --salt 0AAQmsjh-C7kAJZQEzdrzwB7 --nopasscode --config-dir "/keripy/my-scripts" --config-file my-config
kli incept --name controller --alias controller --file "/keripy/my-scripts/my-incept.json"

Example AID:

EKYGGh-FtAphGmSZbsuBs_t4qpsjYJ2ZqvMKluq9OxmP

(Optional) Perform more KERI operations

Optionally use kli to perform additional KERI operations such as key rotation, threshold signatures, etc., see KERI docs for details.

See an example below.

Decide your web address for did:webs

Find a web address (domain, optional port, optional path) that you control.

Example web address:

https://peacekeeper.github.io/did-webs-iiw37-tutorial/

Generate did:webs files for AID

Note: Replace with your actual web address and AID, convert to did:web(s) conformant identifier

Be sure to execute the command in the root of your local did-webs repo (and in the Docker container)

dkr did webs generate --name controller --did did:webs:peacekeeper.github.io:did-webs-iiw37-tutorial:EKYGGh-FtAphGmSZbsuBs_t4qpsjYJ2ZqvMKluq9OxmP --oobi http://witnesshost:5642/oobi/EKYGGh-FtAphGmSZbsuBs_t4qpsjYJ2ZqvMKluq9OxmP/witness/BBilc4-L3tFUnfM_wJr4S4OJanAv_VmF_dJNN6vkf2Ha

This creates files:

  • did.json under local path ./volume/dkr/did_json/<your AID>
  • keri.cesr under local path ./volume/dkr/keri_cesr/<your AID>

You can access these files either from within your Docker container or on your local computer filesystem.

  • <local path on computer to did-webs-iiw37-tutorial>/volume/dkr/
  • /usr/local/var/did-keri-resolver/did_json/<your AID> (local path in the Docker container)

and extend those paths with either did_json/<your AID> or keri_cesr/<your AID>.

Upload did.json and keri.cesr to your web server

E.g. using git, Github pages, FTP, SCP, etc.

Example WOT-terms install using git

We choose WOT-terms as our [DESTINATION LOCAL REPO]

cd [PATH TO LOCAL SOURCE REPO did-webs-iiw37-tutorial]/volume/dkr/did_json/ENbWS51Pw1rmxz5QIfK5kp3ODaEeQcZjqQNrLpc6mMQq
cp did.json ~/apps/WOT-terms/
cd ../../keri_cesr/ENbWS51Pw1rmxz5QIfK5kp3ODaEeQcZjqQNrLpc6mMQq
cp keri.cesr ~/apps/WOT-terms/

Result in local WOT-terms repo

[DESTINATION LOCAL REPO]: git status

Untracked files:
  (use "git add <file>..." to include in what will be committed)
	did.json
	keri.cesr

git add .
git commit -m "prepare upload did:webs documents to WOT-terms"  
git push upstream main

If you get the expected output of the push action, the files are on the controlled webserver.

Check if files are available on your server

Note: Replace with your actual web address and AID

https://peacekeeper.github.io/did-webs-iiw37-tutorial/EKYGGh-FtAphGmSZbsuBs_t4qpsjYJ2ZqvMKluq9OxmP/did.json

https://peacekeeper.github.io/did-webs-iiw37-tutorial/EKYGGh-FtAphGmSZbsuBs_t4qpsjYJ2ZqvMKluq9OxmP/keri.cesr

(Optional) Resolve AID as did:keri using local resolver

Optionally resolve the AID locally as did:keri, given an OOBI as resolution option.

Note: Replace with your actual AID

dkr did keri resolve --name controller --did did:keri:EKYGGh-FtAphGmSZbsuBs_t4qpsjYJ2ZqvMKluq9OxmP --oobi http://witnesshost:5642/oobi/EKYGGh-FtAphGmSZbsuBs_t4qpsjYJ2ZqvMKluq9OxmP/witness/BBilc4-L3tFUnfM_wJr4S4OJanAv_VmF_dJNN6vkf2Ha

(Optional) Resolve AID as did:webs using local resolver

Optionally resolve the AID locally as did:webs.

Note: Replace with your actual web address and AID

dkr did webs resolve --name controller --did did:webs:peacekeeper.github.io:did-webs-iiw37-tutorial:EKYGGh-FtAphGmSZbsuBs_t4qpsjYJ2ZqvMKluq9OxmP

Resolve as did:web using Universal Resolver

https://dev.uniresolver.io/#did:web:peacekeeper.github.io:did-webs-iiw37-tutorial:EKYGGh-FtAphGmSZbsuBs_t4qpsjYJ2ZqvMKluq9OxmP

Resolve as did:webs using Universal Resolver

https://dev.uniresolver.io/#did:webs:peacekeeper.github.io:did-webs-iiw37-tutorial:EKYGGh-FtAphGmSZbsuBs_t4qpsjYJ2ZqvMKluq9OxmP

Example key rotation

Use the following two commands in your running Docker container.

kli rotate --name controller --alias controller

Be sure to repeat the dkr webs generate command:

dkr did webs generate --name controller --did did:webs:blockchainbird.org:did-webs:EG8GsKYdICKs-zI6odM6tvCmxRT2J-7UkZFqA77agtb8 --oobi http://witnesshost:5642/oobi/EG8GsKYdICKs-zI6odM6tvCmxRT2J-7UkZFqA77agtb8/witness/BBilc4-L3tFUnfM_wJr4S4OJanAv_VmF_dJNN6vkf2Ha

Now upload the overwritten did.json and keri.cesr again to the public spot.

Result

A diff comparison of the old (in green) and the new (in red) did.json: did.json new in red versus old in green A diff comparison of the old (right) and the new (left) keri.cesr; in blue the added part: keri.cesr new in red versus old in green

Trouble shooting

If you are using an Apple Silicon (M1) mac then you might need to:

  • In Docker, select Use Rosetta for x86/amd64 emulation on Apple Silicon
  • Before running docker compose export DOCKER_DEFAULT_PLATFORM=linux/amd64

Your docker container is already up- and running?

Do you have a witness up for another identifier?

Then the kli incept --name controller --alias controller --file "/keripy/my-scripts/my-incept.json" command will give this response:

ERR: Already incepted pre=[Your prefix of another AID].

Solution

Various solutions if you're a Docker expert. If not, we'll go down the more rigorous path:

  1. Step out of the running container with exit
  2. and then docker compose down. This should respond with:

[+] Running 3/3 ⠿ Container dkr Removed 0.0s ⠿ Container witnesshost Removed 13.7s ⠿ Network did-webs-iiw37-tutorial_default Removed 3.1s Now you could continue with:

docker compose up -d
docker compose exec dkr /bin/bash

Special attention Github Pages: web address

There's no problem that we know of when you use Github pages in a bare-bones manner. However, if you use static page generators to populate your github pages (e.g. Jekyll or Docusaurus) be sure to choose the right spot of your files and extract the right paths of the links needed to resolve:

Example

This is the web address of the docusaurus directory: https://weboftrust.github.io/WOT-terms/test/did-webs-iiw37-tutorial/

But the exact spot to extract the files as text would be something like:

http://raw.githubusercontent.com/WOT-terms/test/did-webs-iiw37-tutorial/[your AID] 

The reason for this confusion is dat a static page generator like Docusaurus or Jekyll might interfere with the location, visibility and accessibility of your files on Github Pages.

We advise to choose a simple public directory that you control and we won't go into more detail on how to deal with static site generators.

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