1 files changed, 44 insertions, 0 deletions
diff --git a/java/com/google/gerrit/sshd/InvalidKeyAlgorithmException.java b/java/com/google/gerrit/sshd/InvalidKeyAlgorithmException.java
new file mode 100644
index 0000000000..5f09658ba2
--- /dev/null
+++ b/java/com/google/gerrit/sshd/InvalidKeyAlgorithmException.java
@@ -0,0 +1,44 @@
+// Copyright (C) 2024 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.sshd;
+
+import java.security.PublicKey;
+import java.security.spec.InvalidKeySpecException;
+
+public class InvalidKeyAlgorithmException extends InvalidKeySpecException {
+  private final String invalidKeyAlgo;
+  private final String expectedKeyAlgo;
+  private final PublicKey publicKey;
+
+  public InvalidKeyAlgorithmException(
+      String invalidKeyAlgo, String expectedKeyAlgo, PublicKey publicKey) {
+    super("Key algorithm mismatch: expected " + expectedKeyAlgo + " but got " + invalidKeyAlgo);
+    this.invalidKeyAlgo = invalidKeyAlgo;
+    this.expectedKeyAlgo = expectedKeyAlgo;
+    this.publicKey = publicKey;
+  }
+
+  public String getInvalidKeyAlgo() {
+    return invalidKeyAlgo;
+  }
+
+  public String getExpectedKeyAlgo() {
+    return expectedKeyAlgo;
+  }
+
+  public PublicKey getPublicKey() {
+    return publicKey;
+  }
+}