암복호화 에러 로그 추가

src/main/java/cokr/xit/base/crypto/Cryptography.java

@@ -68,6 +68,7 @@ public abstract class Cryptography extends AbstractComponent {
 		try {
 			return doEncrypt(plain);
 		} catch (Exception e) {
+			log().error("Failed to encrypt: {}", plain);
 			throw runtimeException(e);
 		}
 	}
@@ -97,6 +98,7 @@ public abstract class Cryptography extends AbstractComponent {
 		try {
 			return doDecrypt(encrypted);
 		} catch (Exception e) {
+			log().error("Failed to decrypt: {}", encrypted);
 			throw runtimeException(e);
 		}
 	}