Check proper initialization for SupportEd25519 (#204)

* fix:add fips clause for SupportEd25519

* fix:add fips clause for SupportEd25519

* fix:add fips clause for SupportEd25519

* fix: remove initialized evp_pkey_ctx

* fix:add a short circuit for versionAtOrAbove

* fix:since all tests are passing in mariner2, remove continue on error clause

.github/workflows/test.yml

@@ -96,6 +96,4 @@ jobs:
     - name: Checkout code
       uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
     - name: Run Test
-      # This line is temporary. We are currently working on a fix to fully support Mariner 2.0. Once the fix is merged, we will remove this line.    
-      continue-on-error: true
       run: go test -v ./...

ed25519.go

@@ -37,7 +37,13 @@ func SupportsEd25519() bool {
 	onceSupportsEd25519.Do(func() {
 		switch vMajor {
 		case 1:
-			supportsEd25519 = versionAtOrAbove(1, 1, 1)
+			if versionAtOrAbove(1, 1, 1) {
+				ctx := C.go_openssl_EVP_PKEY_CTX_new_id(C.GO_EVP_PKEY_ED25519, nil)
+				if ctx != nil {
+					C.go_openssl_EVP_PKEY_CTX_free(ctx)
+					supportsEd25519 = true
+				}
+			}
 		case 3:
 			name := C.CString("ED25519")
 			defer C.free(unsafe.Pointer(name))