From 3780a25140c743a0c1631b2eacc5ceb92e945117 Mon Sep 17 00:00:00 2001
From: xiaoqidun <xiaoqidun@gmail.com>
Date: Mon, 12 Oct 2026 23:46:52 +0800
Subject: [PATCH] =?UTF-8?q?feat(=E7=AD=BE=E5=90=8D=E6=97=B6=E9=97=B4):=20?=
 =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E7=AD=BE=E5=90=8D=E6=97=B6=E9=97=B4=E8=A7=A3?=
 =?UTF-8?q?=E6=9E=90?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ofdgo_sign_verify.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/ofdgo_sign_verify.go b/ofdgo_sign_verify.go
index 66afcf9..327e713 100644
--- a/ofdgo_sign_verify.go
+++ b/ofdgo_sign_verify.go
@@ -996,7 +996,7 @@ func signatureCertInfo(data []byte) SignatureCertInfo {
 	}
 }
 
-// parseSignatureDateTime 解析带时区的签名时间
+// parseSignatureDateTime 解析带时区的签名时间，支持UTCTime两位年份
 // 入参: value 签名时间文本
 // 返回: time.Time 签名时间
 func parseSignatureDateTime(value string) time.Time {
@@ -1010,7 +1010,8 @@ func parseSignatureDateTime(value string) time.Time {
 			return t
 		}
 	}
-	return time.Time{}
+	t, _ := asn1Time(asn1.RawValue{FullBytes: asn1Wrap(asn1.TagUTCTime, []byte(value))})
+	return t
 }
 
 // parseSignatureCertificate 解析唯一的PEM或DER证书