quarkiverse#105 added integration test using KeyPair.

integration-tests/src/main/java/io/quarkus/it/jsch/KeyPairResource.java

@@ -0,0 +1,42 @@
+package io.quarkus.it.jsch;
+
+import java.nio.charset.StandardCharsets;
+
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.core.Response;
+
+import com.jcraft.jsch.JSch;
+import com.jcraft.jsch.JSchException;
+import com.jcraft.jsch.KeyPair;
+
+@Path("/key")
+public class KeyPairResource {
+
+    @GET
+    public Response checkKey() throws Exception {
+        try (var is = getClass().getResourceAsStream(("/id_rsa.pem"))) {
+            return Response.ok(verifyPemEncodedPrivateKey(is.readAllBytes(), "PrettyPlease")).build();
+        }
+    }
+
+    /**
+     * Verify that the private key is valid and can be decrypted with the given passphrase.
+     *
+     * @param privateKeyBytes The private key file (PEM encoded) as raw bytes.
+     * @param passphrase The passphrase, may be null for plain text keys.
+     * @return finger print.
+     */
+    private String verifyPemEncodedPrivateKey(byte[] privateKeyBytes, String passphrase) {
+        KeyPair keyPair;
+        try {
+            keyPair = KeyPair.load(new JSch(), privateKeyBytes, null);
+        } catch (JSchException e) {
+            throw new RuntimeException("Failed to parse SSH private key", e);
+        }
+        if (keyPair.isEncrypted()) {
+            keyPair.decrypt(passphrase.getBytes(StandardCharsets.UTF_8));
+        }
+        return keyPair.getFingerPrint();
+    }
+}

integration-tests/src/main/resources/id_rsa.pem

@@ -0,0 +1,39 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAACmFlczI1Ni1jdHIAAAAGYmNyeXB0AAAAGAAAABB8KarbgH
+gP3XEK+fsZmlP5AAAAEAAAAAEAAAGXAAAAB3NzaC1yc2EAAAADAQABAAABgQDWavxs+pOy
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+MsrQcO3ZafSW9TJbAo/JOneZccY=
+-----END OPENSSH PRIVATE KEY-----

integration-tests/src/test/java/io/quarkus/it/jsch/KeyPairTest.java

@@ -0,0 +1,17 @@
+package io.quarkus.it.jsch;
+
+import static io.restassured.RestAssured.given;
+import static org.hamcrest.core.Is.is;
+
+import org.junit.jupiter.api.Test;
+
+import io.quarkus.test.junit.QuarkusTest;
+
+@QuarkusTest
+public class KeyPairTest {
+
+    @Test
+    void shouldBeAbleToDecryptKey() {
+        given().get("/key").then().statusCode(is(200));
+    }
+}

integration-tests/src/test/java/io/quarkus/it/jsch/NativeKeyPairIT.java

@@ -0,0 +1,7 @@
+package io.quarkus.it.jsch;
+
+import io.quarkus.test.junit.QuarkusIntegrationTest;
+
+@QuarkusIntegrationTest
+public class NativeKeyPairIT extends KeyPairTest {
+}