diff --git a/.github/workflows/linter.yml b/.github/workflows/linter.yml
index 143f6ac4..9bb67a3d 100644
--- a/.github/workflows/linter.yml
+++ b/.github/workflows/linter.yml
@@ -6,21 +6,20 @@ jobs:
   cpp-linter:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: cpp-linter/cpp-linter-action@v2
+      - uses: actions/checkout@v4
+      - uses: cpp-linter/cpp-linter-action@main
         id: linter
+        continue-on-error: true
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          style: file
-          # The following value will only update a single comment
-          # in a pull request's thread. Set it to false to disable the comment.
-          # Set it to true to post a new comment (and delete the old comment).
-          # thread-comments: ${{ github.event_name == 'pull_request' && 'update' }}
-          thread-comments: ${{ github.event_name == 'push' && 'update' }}
+          style: ''
+          files-changed-only: false
+          ignore: crypto
 
       - name: Fail fast?!
-        if: steps.linter.outputs.checks-failed > 0
-        run: echo "Some files failed the linting checks!"
+        if: steps.linter.outputs.checks-failed != 0
+        run: |
+          echo "some linter checks failed. ${{ steps.linter.outputs.checks-failed }}"
         # for actual deployment
         # run: exit 1
\ No newline at end of file
diff --git a/README.md b/README.md
index 3d0b4c1f..d0c6d69f 100644
--- a/README.md
+++ b/README.md
@@ -97,3 +97,4 @@ you can find here](.github/CONTRIBUTING.md).
 [NuMaker-PFM-M2351]: http://www.nuvoton.com.cn/hq/products/iot-solution/iot-platform/numaker-maker-platform/numaker-pfm-m2351?__locale=en
 [M2351-Badge]: docs/schemes/m2351_badge
 [V2M-MPS2-Qemu]: https://developer.arm.com/documentation/100964/1114/Microcontroller-Prototyping-System-2?lang=en
+
diff --git a/tools/ecdsa_keygen.c b/tools/ecdsa_keygen.c
index 96bc164e..2955fc60 100644
--- a/tools/ecdsa_keygen.c
+++ b/tools/ecdsa_keygen.c
@@ -75,11 +75,11 @@ typedef struct Message_Struct {
 
 /* Private Data. */
 /* All static data definitions appear here. */
-uint32_t key[] =
+const uint32_t key[] =
   { 0x78563412, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
       0x00000000, 0xefcdac00 };
 
-uint32_t iv[] =
+const uint32_t iv[] =
   { 0x78563412, 0x00000000, 0x00000000, 0xefcdac00 };
 
 /* Public Data. */
@@ -374,7 +374,7 @@ int main(int argc, char * argv[])
   }
   fclose(fd);
 
-exit:
+// exit:
   BN_free(x);
   BN_free(y);
   EC_GROUP_free(ecgroup);