From e6b78d943c468b44b7dd1102b84b0c20788a1202 Mon Sep 17 00:00:00 2001
From: Looly <loolly@gmail.com>
Date: Wed, 11 Aug 2021 18:59:36 +0800
Subject: [PATCH] fix comment

---
 .../src/main/java/cn/hutool/crypto/digest/otp/HOTP.java      | 4 +++-
 .../src/main/java/cn/hutool/crypto/digest/otp/TOTP.java      | 5 ++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/hutool-crypto/src/main/java/cn/hutool/crypto/digest/otp/HOTP.java b/hutool-crypto/src/main/java/cn/hutool/crypto/digest/otp/HOTP.java
index 0f63d8371..05a84ef7b 100644
--- a/hutool-crypto/src/main/java/cn/hutool/crypto/digest/otp/HOTP.java
+++ b/hutool-crypto/src/main/java/cn/hutool/crypto/digest/otp/HOTP.java
@@ -6,9 +6,11 @@ import cn.hutool.crypto.digest.HMac;
 import cn.hutool.crypto.digest.HmacAlgorithm;
 
 /**
- * <p>HMAC-based one-time passwords (HOTP) 一次性密码生成器，
+ * <p>HMAC-based one-time passwords (HOTP) 基于HMAC算法一次性密码生成器，
  * 规范见：<a href="https://tools.ietf.org/html/rfc4226">RFC&nbsp;4226</a>.</p>
  *
+ * <p>基于事件同步，通过某一特定的事件次序及相同的种子值作为输入，通过HASH算法运算出一致的密码。</p>
+ *
  * <p>参考：https://github.com/jchambers/java-otp</p>
  *
  * @author Looly
diff --git a/hutool-crypto/src/main/java/cn/hutool/crypto/digest/otp/TOTP.java b/hutool-crypto/src/main/java/cn/hutool/crypto/digest/otp/TOTP.java
index 50ed4e8d0..7a3b96b3f 100644
--- a/hutool-crypto/src/main/java/cn/hutool/crypto/digest/otp/TOTP.java
+++ b/hutool-crypto/src/main/java/cn/hutool/crypto/digest/otp/TOTP.java
@@ -7,9 +7,12 @@ import java.time.Duration;
 import java.time.Instant;
 
 /**
- * <p>time-based one-time passwords (TOTP) 一次性密码生成器，
+ * <p>time-based one-time passwords (TOTP) 基于时间戳算法的一次性密码生成器，
  * 规范见：<a href="https://tools.ietf.org/html/rfc6238">RFC&nbsp;6238</a>.</p>
  *
+ * <p>时间同步，基于客户端的动态口令和动态口令验证服务器的时间比对，一般每30秒产生一个新口令，
+ * 要求客户端和服务器能够十分精确的保持正确的时钟，客户端和服务端基于时间计算的动态口令才能一致。</p>
+ *
  * <p>参考：https://github.com/jchambers/java-otp</p>
  *
  * @author Looly