From 5e331b873f7f30c609260db92df408e7f2e7eedb Mon Sep 17 00:00:00 2001
From: mjkhan21 <mjkhan21@xit.co.kr>
Date: Fri, 1 Dec 2023 14:24:33 +0900
Subject: [PATCH] =?UTF-8?q?ARIA=20=EC=B6=94=EA=B0=80?=
MIME-Version: 1.0
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---
 .../java/cokr/xit/foundation/data/ARIA.java   | 120 ++++++++++++++++++
 1 file changed, 120 insertions(+)
 create mode 100644 src/main/java/cokr/xit/foundation/data/ARIA.java

diff --git a/src/main/java/cokr/xit/foundation/data/ARIA.java b/src/main/java/cokr/xit/foundation/data/ARIA.java
new file mode 100644
index 0000000..f291da9
--- /dev/null
+++ b/src/main/java/cokr/xit/foundation/data/ARIA.java
@@ -0,0 +1,120 @@
+package cokr.xit.foundation.data;
+
+import java.util.Base64;
+
+import org.egovframe.rte.fdl.cryptography.EgovPasswordEncoder;
+import org.egovframe.rte.fdl.cryptography.impl.EgovARIACryptoServiceImpl;
+
+import cokr.xit.foundation.AbstractComponent;
+
+/**ARIA 기반의 암/복호화 서비스를 제공하는 컴포넌트
+ * @author mjkhan
+ */
+public class ARIA extends AbstractComponent {
+	private String
+		key,
+		algorithm;
+	private int blockSize;
+
+	private EgovPasswordEncoder passwordEncoder;
+	private EgovARIACryptoServiceImpl aria;
+
+	/**키를 반환한다.
+	 * @return 키
+	 */
+	public String getKey() {
+		return key;
+	}
+
+	/**키를 설정한다.
+	 * @param key 키
+	 * @return 현재 ARIA
+	 */
+	public ARIA setKey(String key) {
+		this.key = key;
+		return this;
+	}
+
+	/**알고리즘을 반환한다. 디폴트는 SHA-256.
+	 * @return 알고리즘
+	 */
+	public String getAlgorithm() {
+		return algorithm;
+	}
+
+	/**알고리즘을 설정한다. 디폴트는 SHA-256.
+	 * @param algorithm 알고리즘
+	 * @return 현재 ARIA
+	 */
+	public ARIA setAlgorithm(String algorithm) {
+		this.algorithm = algorithm;
+		return this;
+	}
+
+	/**블록사이즈를 반환한다. 디폴트는 1024.
+	 * @return 블록사이즈
+	 */
+	public int getBlockSize() {
+		return blockSize < 1 ? 1024 : blockSize;
+	}
+
+	/**블록사이즈를 설정한다. 디폴트는 1024.
+	 * @param blockSize 블록사이즈
+	 * @return 현재 ARIA
+	 */
+	public ARIA setBlockSize(int blockSize) {
+		this.blockSize = blockSize;
+		return this;
+	}
+
+	/**주어진 문자열(평문)을 암호화하여 반환한다.
+	 * @param plain 문자열(평문)
+	 * @return 암호화한 문자열
+	 */
+	public String encrypt(String plain) {
+		if (isEmpty(plain)) return "";
+
+		byte[] bytes = service().encrypt(plain.getBytes(), key);
+		return Base64.getEncoder().encodeToString(bytes);
+	}
+
+	private EgovPasswordEncoder passwordEncoder() {
+		if (passwordEncoder == null) {
+			passwordEncoder = new EgovPasswordEncoder();
+			String hashed = passwordEncoder.encryptPassword(notEmpty(key, "key"));
+			passwordEncoder.setHashedPassword(hashed);
+			if (!isEmpty(algorithm))
+				passwordEncoder.setAlgorithm(algorithm);
+		}
+		return passwordEncoder;
+	}
+
+	private EgovARIACryptoServiceImpl service() {
+		if (aria == null) {
+			aria = new EgovARIACryptoServiceImpl();
+			aria.setPasswordEncoder(passwordEncoder());
+			aria.setBlockSize(getBlockSize());
+		}
+		return aria;
+	}
+
+	/**주어진 문자열(암호화)을 복호화하여 반환한다.
+	 * @param encrypted 문자열(암호화)
+	 * @return 복호화한 문자열
+	 */
+	public String decrypt(String encrypted) {
+		byte[] bytes = Base64.getDecoder().decode(encrypted);
+		return new String(service().decrypt(bytes, key));
+	}
+
+	/**현재 설정상태를 비운다.
+	 * @return 현재 ARIA
+	 */
+	public ARIA clear() {
+		key = algorithm = null;
+		blockSize = 0;
+		passwordEncoder = null;
+		aria = null;
+		return this;
+	}
+}
\ No newline at end of file