From a37fbf8aa1f125eef7177f98d99ed5b6970d7cb0 Mon Sep 17 00:00:00 2001
From: Looly <loolly@aliyun.com>
Date: Wed, 14 Aug 2024 08:22:39 +0800
Subject: [PATCH] add KeyManagerUtil

---
 .../dromara/hutool/crypto/KeyManagerUtil.java | 79 +++++++++++++++++++
 .../org/dromara/hutool/crypto/KeyUtil.java    |  4 +-
 2 files changed, 80 insertions(+), 3 deletions(-)
 create mode 100644 hutool-crypto/src/main/java/org/dromara/hutool/crypto/KeyManagerUtil.java

diff --git a/hutool-crypto/src/main/java/org/dromara/hutool/crypto/KeyManagerUtil.java b/hutool-crypto/src/main/java/org/dromara/hutool/crypto/KeyManagerUtil.java
new file mode 100644
index 000000000..581957450
--- /dev/null
+++ b/hutool-crypto/src/main/java/org/dromara/hutool/crypto/KeyManagerUtil.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2024 Hutool Team.
+ *
+ * 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 org.dromara.hutool.crypto;
+
+import org.dromara.hutool.core.text.StrUtil;
+import org.dromara.hutool.crypto.provider.GlobalProviderFactory;
+
+import javax.net.ssl.KeyManager;
+import javax.net.ssl.KeyManagerFactory;
+import java.security.*;
+
+/**
+ * {@link KeyManager}相关工具
+ *
+ * @author Looly
+ * @since 6.0.0
+ */
+public class KeyManagerUtil {
+
+	/**
+	 * 获取{@link KeyManagerFactory}，使用全局算法提供者
+	 *
+	 * @param algorithm 算法，{@code null}表示默认算法，如SunX509
+	 * @return {@link KeyManagerFactory}
+	 */
+	public static KeyManagerFactory getKeyManagerFactory(final String algorithm) {
+		return getKeyManagerFactory(algorithm, GlobalProviderFactory.getProvider());
+	}
+
+	/**
+	 * 获取{@link KeyManagerFactory}
+	 *
+	 * @param algorithm 算法，{@code null}表示默认算法，如SunX509
+	 * @param provider  算法提供者，{@code null}使用JDK默认
+	 * @return {@link KeyManagerFactory}
+	 */
+	public static KeyManagerFactory getKeyManagerFactory(String algorithm, final Provider provider) {
+		if (StrUtil.isBlank(algorithm)) {
+			algorithm = KeyManagerFactory.getDefaultAlgorithm();
+		}
+
+		try {
+			return null == provider ? KeyManagerFactory.getInstance(algorithm) : KeyManagerFactory.getInstance(algorithm, provider);
+		} catch (final NoSuchAlgorithmException e) {
+			throw new CryptoException(e);
+		}
+	}
+
+	/**
+	 * 从KeyStore中获取{@link KeyManager}列表
+	 *
+	 * @param keyStore KeyStore
+	 * @param password 密码
+	 * @return {@link KeyManager}列表
+	 */
+	public static KeyManager[] getKeyManagers(final KeyStore keyStore, final char[] password) {
+		final KeyManagerFactory keyManagerFactory = getKeyManagerFactory(null);
+		try {
+			keyManagerFactory.init(keyStore, password);
+		} catch (final KeyStoreException | NoSuchAlgorithmException | UnrecoverableKeyException e) {
+			throw new CryptoException(e);
+		}
+		return keyManagerFactory.getKeyManagers();
+	}
+}
diff --git a/hutool-crypto/src/main/java/org/dromara/hutool/crypto/KeyUtil.java b/hutool-crypto/src/main/java/org/dromara/hutool/crypto/KeyUtil.java
index 964a9c120..4e3636874 100644
--- a/hutool-crypto/src/main/java/org/dromara/hutool/crypto/KeyUtil.java
+++ b/hutool-crypto/src/main/java/org/dromara/hutool/crypto/KeyUtil.java
@@ -625,15 +625,13 @@ public class KeyUtil {
 	public static KeyFactory getKeyFactory(final String algorithm) {
 		final Provider provider = GlobalProviderFactory.getProvider();
 
-		final KeyFactory keyFactory;
 		try {
-			keyFactory = (null == provider) //
+			return (null == provider) //
 				? KeyFactory.getInstance(getMainAlgorithm(algorithm)) //
 				: KeyFactory.getInstance(getMainAlgorithm(algorithm), provider);
 		} catch (final NoSuchAlgorithmException e) {
 			throw new CryptoException(e);
 		}
-		return keyFactory;
 	}
 
 	/**