helper and doc

.github/workflows/check.yaml

@@ -0,0 +1,50 @@
+name: Check PR
+
+on:
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+      - labeled
+      - unlabeled
+    branches:
+      - main
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions/setup-java@v1
+        with:
+          java-version: '11'
+          java-package: jdk
+
+      - id: bump
+        uses: zwaldowski/match-label-action@v1
+        with:
+          allowed: major,minor,patch
+
+      - uses: zwaldowski/semver-release-action@v2
+        with:
+          dry_run: true
+          bump: ${{ steps.bump.outputs.match }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+
+  comment:
+    runs-on: ubuntu-latest
+    if: always()
+    steps:
+      - uses: technote-space/workflow-conclusion-action@v2
+      - name: Checkout
+        uses: actions/checkout@v1
+
+      - name: Comment PR
+        if: env.WORKFLOW_CONCLUSION == 'failure'
+        uses: thollander/[email protected]
+        with:
+          message: "Please apply one of the following labels to the PR: 'patch', 'minor', 'major'."
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release.yaml

@@ -0,0 +1,68 @@
+name: Release
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  generate-version:
+    runs-on: ubuntu-latest
+
+    outputs:
+      version: ${{ steps.out.outputs.version }}
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions/setup-java@v1
+        with:
+          java-version: '11'
+          java-package: jdk
+
+      - id: pr
+        uses: actions-ecosystem/[email protected]
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+
+      - uses: zwaldowski/semver-release-action@v2
+        with:
+          dry_run: true
+          bump: ${{ steps.pr.outputs.labels }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set version output
+        id: out
+        run: echo "::set-output name=version::$(echo ${VERSION})"
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version: '>= 1.21.5'
+
+      - name: build
+        run: |
+          go build .
+
+  git-release:
+    needs:
+      - generate-version
+      - build
+
+    runs-on: ubuntu-latest
+
+    steps:
+
+      - uses: "marvinpinto/action-automatic-releases@latest"
+        with:
+          repo_token: "${{ secrets.GITHUB_TOKEN }}"
+          automatic_release_tag: ${{ needs.generate-version.outputs.version }}
+          prerelease: false
+          title: ${{ needs.generate-version.outputs.version }}
+          files: |
+            did-helper
+            LICENSE

did/helper.go

@@ -26,7 +26,7 @@ func GetDIDKeyFromECPKCS12(path, password string) (did string, err error) {
 		return did, err
 	}
 
-	ecKey, ok := privateKey.(ecdsa.PrivateKey)
+	ecKey, ok := privateKey.(*ecdsa.PrivateKey)
 	if !ok {
 		zap.L().Sugar().Warnf("Keystore %s does not contain a valid EC Private Key.", path)
 		return did, errors.New("no_ec_private_key")

example/cert.pem

@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

example/private-key.pem

@@ -0,0 +1,5 @@
+-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEIF3NwGK4z4LR533/7mXaQNcWCfglL/AbO5wkb3ltQ5rdoAoGCCqGSM49
+AwEHoUQDQgAERc8WGLzhNZxIBs1pW51EazzSCBTDfnN0YBgGYtCjK+O/HXHB5Wdi
+b5rbU0UUH+D1fbxjLLj+l70ioboGi7Snow==
+-----END EC PRIVATE KEY-----

example/public-key.pem

@@ -0,0 +1,4 @@
+-----BEGIN PUBLIC KEY-----
+MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAERc8WGLzhNZxIBs1pW51EazzSCBTD
+fnN0YBgGYtCjK+O/HXHB5Wdib5rbU0UUH+D1fbxjLLj+l70ioboGi7Snow==
+-----END PUBLIC KEY-----

main.go

@@ -1,6 +1,10 @@
 package main
 
 import (
+	"flag"
+	"fmt"
+
+	"github.com/wistefan/did-helper/did"
 	"go.uber.org/zap"
 )
 
@@ -9,5 +13,21 @@ func init() {
 }
 
 func main() {
+	var path string
+	var password string
+
+	flag.StringVar(&path, "keystorePath", "", "Path to the keystore to be read.")
+	flag.StringVar(&password, "keystorePassword", "", "Password for the keystore.")
+
+	flag.Parse()
+
+	zap.L().Sugar().Infof("Path to the keystore: %s", path, "Password to be used: %s", password)
+
+	did, err := did.GetDIDKeyFromECPKCS12(path, password)
 
+	if err != nil {
+		fmt.Println("Was not able to extract did. Err: ", err)
+	} else {
+		fmt.Println("Did key is: ", did)
+	}
 }