diff --git a/gpgkey-1F42418905D8206AA754CCDC29EE58B996865171.gpg b/gpgkey-1F42418905D8206AA754CCDC29EE58B996865171.gpg
deleted file mode 100644
index 1f9a40cc96ea43f54ea9dc0f1873971a85535c2f..0000000000000000000000000000000000000000
Binary files a/gpgkey-1F42418905D8206AA754CCDC29EE58B996865171.gpg and /dev/null differ
diff --git a/libtasn1-3.4-rpath.patch b/libtasn1-3.4-rpath.patch
deleted file mode 100644
index 91d44e2d5f24cf85ee9b07723819338c367d195c..0000000000000000000000000000000000000000
--- a/libtasn1-3.4-rpath.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff -ur libtasn1-3.4.orig/configure libtasn1-3.4/configure
---- libtasn1-3.4.orig/configure	2013-11-25 20:24:23.000000000 +0100
-+++ libtasn1-3.4/configure	2013-11-27 14:08:42.872612379 +0100
-@@ -12376,7 +12376,7 @@
- shlibpath_overrides_runpath=unknown
- version_type=none
- dynamic_linker="$host_os ld.so"
--sys_lib_dlsearch_path_spec="/lib /usr/lib"
-+sys_lib_dlsearch_path_spec="/lib /usr/lib /lib64 /usr/lib64"
- need_lib_prefix=unknown
- hardcode_into_libs=no
- 
diff --git a/libtasn1.spec b/libtasn1.spec
index 7f83d0049285e0485ee4ffb500b03d6c23dbf766..f006713edf2c1d87456d407a14514a3f6dc18c18 100644
--- a/libtasn1.spec
+++ b/libtasn1.spec
@@ -1,15 +1,13 @@
 Summary:	Libtasn1 is a ASN.1 parsing library
 Name:		libtasn1
 Version:	4.13
-Release:	5
+Release:	6
 
 # The libtasn1 library is LGPLv2+, utilities are GPLv3+
 License:	GPLv3+ and LGPLv2+
 URL:		http://www.gnu.org/software/libtasn1/
 Source0:	http://ftp.gnu.org/gnu/libtasn1/%name-%version.tar.gz
 Source1:	http://ftp.gnu.org/gnu/libtasn1/%name-%version.tar.gz.sig
-Source2:	gpgkey-1F42418905D8206AA754CCDC29EE58B996865171.gpg
-Patch1:		libtasn1-3.4-rpath.patch
 
 BuildRequires:	gcc, autoconf, automake, libtool, gnupg2, bison, pkgconfig, help2man, valgrind-devel
 Provides: bundled(gnulib) = 20130324
@@ -35,7 +33,6 @@ This package contains header files and so files for development.
 %package_help
 
 %prep
-gpgv2 --keyring %{SOURCE2} %{SOURCE1} %{SOURCE0}
 %autosetup -p1
 
 %build
@@ -81,5 +78,8 @@ test "$1" = 0 -a -f %_infodir/%name.info.gz && \
 %{_infodir}/*.info.*
 
 %changelog
+* Sun Jan 12 2020 openEuler Buildteam <buildteam@openeuler.org> - 4.13-6
+- simplify functions
+
 * Fri Sep 06 2019 openEuler Buildteam <buildteam@openeuler.org> - 4.13-5
 - Package init