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Added a quick fix to console signing. Need to edit text later

kb/add-usage-guide
Matthew Raymer 1 year ago
parent
commit
9ec19fa4ee
  1. 5
      .gitignore
  2. 4
      openssl_signing_console.rst
  3. 25
      openssl_signing_console.sh

5
.gitignore

@ -1,13 +1,16 @@
.DS_Store
node_modules
/dist
signature.bin
*.pem
verified.txt
*~
# local env files
.env.local
.env.*.local
# Log files
# Log filesopenssl dgst -sha256 -verify public.pem -signature <(echo -n "$signature") "$signing_input"
npm-debug.log*
yarn-debug.log*
yarn-error.log*

4
openssl_signing_console.rst

@ -1,3 +1,7 @@
Prerequisits:
jq
You can create a JWT using a library or by encoding the header and payload base64Url and signing it with a secret using a ES256K algorithm. Here is an example of how you can create a JWT using the jq and openssl command line utilities:
Here is an example of how you can use openssl to sign a JWT with the ES256K algorithm:

25
openssl_signing_console.sh

@ -0,0 +1,25 @@
#!/bin/bash
openssl ecparam -name secp256k1 -genkey -noout -out private.pem
openssl ec -in private.pem -pubout -out public.pem
header='{"alg":"ES256K", "issuer": "", "typ":"JWT"}'
payload='{"@context": "http://schema.org", "@type": "PlanAction", "identifier": "did:ethr:0xb86913f83A867b5Ef04902419614A6FF67466c12", "name": "Test", "description": "Me"}'
header_b64=$(echo -n "$header" | jq -c -M . | tr -d '\n')
payload_b64=$(echo -n "$payload" | jq -c -M . | tr -d '\n')
signing_input="$header_b64.$payload_b64"
echo -n "$signing_input" | openssl dgst -sha256 -sign private.pem -out signature.bin
# Read binary signature from file and encode it to Base64 URL-Safe format
signature_b64=$(base64 -w 0 < signature.bin | tr -d '=' | tr '+' '-' | tr '/' '_')
# Construct the JWT
jwt="$signing_input.$signature_b64"
openssl dgst -sha256 -verify public.pem -signature signature.bin -out verified.txt <(echo -n "$signing_input")
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