diff --git a/unzip-6.0-crc-builtin.patch b/unzip-6.0-crc-builtin.patch
new file mode 100644
index 0000000000000000000000000000000000000000..fb7fa8708b6f08975152acf25ea2e40837c5a84f
--- /dev/null
+++ b/unzip-6.0-crc-builtin.patch
@@ -0,0 +1,141 @@
+From 1ae8eea237f05a590d8da38528dceab8a7b4290b Mon Sep 17 00:00:00 2001
+From: Euler Hanzh <18221254@bjtu.edu.cn>
+Date: Mon, 17 May 2021 19:28:18 +0800
+Subject: [PATCH] This patch is created for performance optimization in crc calculation only suitable for openeuler of aarch64 architecture. 
+                 The speed of unzip software when running can be accelerate by nearly 100% than before.
+
+---
+ unzip60/crc32.c       |  28 ++++++++++++++++++++++++++++
+ unzip60/crc32.h       |   4 ++++
+ unzip60/unix/Makefile |  19 ++++++++++++++-----
+ 3 files changed, 46 insertions(+), 5 deletions(-)
+
+diff --git a/unzip60/crc32.c b/unzip60/crc32.c
+index 02f504d..fa73a3e 100644
+--- a/unzip60/crc32.c
++++ b/unzip60/crc32.c
+@@ -675,7 +675,32 @@ void free_crc_table()
+
+ #endif /* (IZ_CRC_BE_OPTIMIZ || IZ_CRC_LE_OPTIMIZ) */
+
++#ifdef ARCH_AARCH64
++u_int32_t crc32(u_int32_t crc,const u_int8_t *p, unsigned int len)
++{
++  int64_t length = len;
++
++  while ((length -= sizeof(u_int64_t)) >=0) {
++    __builtin_aarch64_crc32cx(crc, *((u_int64_t *)p));
++    p += sizeof(u_int64_t);
++  }
+
++  if (length & sizeof(u_int32_t)) {
++    __builtin_aarch64_crc32cw(crc, *((u_int32_t *)p));
++    p += sizeof(u_int32_t);
++  }
++
++  if (length & sizeof(u_int16_t)) {
++    __builtin_aarch64_crc32ch(crc, *((u_int16_t *)p));
++    p += sizeof(u_int16_t);
++  }
++
++  if (length & sizeof(u_int8_t))
++    __builtin_aarch64_crc32cb(crc, *p);
++
++  return crc;
++}
++#else
+ /* ========================================================================= */
+ ulg crc32(crc, buf, len)
+     ulg crc;                    /* crc shift register */
+@@ -726,6 +751,9 @@ ulg crc32(crc, buf, len)
+
+   return REV_BE(c) ^ 0xffffffffL;   /* (instead of ~c for 64-bit machines) */
+ }
++
++#endif /* !ARCH_AARCH64*/
++
+ #endif /* !ASM_CRC */
+ #endif /* !CRC_TABLE_ONLY */
+ #endif /* !USE_ZLIB */
+diff --git a/unzip60/crc32.h b/unzip60/crc32.h
+index 83af240..b5e386a 100644
+--- a/unzip60/crc32.h
++++ b/unzip60/crc32.h
+@@ -36,7 +36,11 @@
+ #    undef IZ_CRC_BE_OPTIMIZ
+ #  endif
+ #else /* !(USE_ZLIB || CRC_TABLE_ONLY) */
++#  ifdef ARCH_AARCH64
++    u_int32_t crc32(u_int32_t crc,const u_int8_t *p, unsigned int len);
++#  else
+       ulg      crc32           OF((ulg crc, ZCONST uch *buf, extent len));
++#  endif 
+ #endif /* ?(USE_ZLIB || CRC_TABLE_ONLY) */
+
+ #ifndef CRC_32_TAB
+diff --git a/unzip60/unix/Makefile b/unzip60/unix/Makefile
+index ab32270..39b2263 100644
+--- a/unzip60/unix/Makefile
++++ b/unzip60/unix/Makefile
+@@ -40,7 +40,8 @@
+
+ # Defaults most systems use (use LOCAL_UNZIP in environment to add flags,
+ # such as -DDOSWILD).
+-
++TARGET_ARCH = $(shell uname -m)
++ARCH = $(shell getconf LONG_BIT)
+ # UnZip flags
+ CC = cc#       try using "gcc" target rather than changing this (CC and LD
+ LD = $(CC)#    must match, else "unresolved symbol:  ___main" is possible)
+@@ -54,6 +55,12 @@ LFLAGS1 =
+ LF = -o unzip$E $(LFLAGS1)
+ LF2 = -s
+
++ifeq ($(TARGET_ARCH),aarch64)
++CFF = -DARCH=$(ARCH) -march=armv8.1-a -D ARCH_AARCH64
++else
++CFF =
++endif
++
+ # UnZipSFX flags
+ SL = -o unzipsfx$E $(LFLAGS1)
+ SL2 = $(LF2)
+@@ -77,6 +84,8 @@ M = unix
+ SHELL = /bin/sh
+ MAKEF = -f unix/Makefile
+
++
++
+ # Version info for unix/unix.c
+ HOST_VERSINFO=-DIZ_CC_NAME='\"\$$(CC) \"' -DIZ_OS_NAME='\"`uname -a`\"'
+
+@@ -231,13 +240,13 @@ generic_msg:
+ # yes, we should be able to use the $O macro to combine these two, but it
+ # fails on some brain-damaged makes (e.g., AIX's)...no big deal
+ .c.o:
+-       $(CC) -c $(CF) $*.c
++       $(CC) -c $(CF) $(CFF)  $*.c
+
+ .c.obj:
+-       $(CC) -c $(CF) $*.c
++       $(CC) -c $(CF) $(CFF)  $*.c
+
+ .c.pic.o:
+-       $(CC) -c $(CF) -o $@ $*.c
++       $(CC) -c $(CF) $(CFF)  -o $@ $*.c
+
+ # this doesn't work...directories are always a pain with implicit rules
+ #.1.txt:               man/$<
+@@ -329,7 +338,7 @@ unzipsfx$O: unzip.c $(UNZIP_H) crypt.h unzvers.h consts.h
+        $(CC) -c $(CF) -DSFX -o $@ unzip.c
+
+ crc32_$O:      crc32.c $(UNZIP_H) zip.h crc32.h
+-       $(CC) -c $(CF) -DSFX -o $@ crc32.c
++       $(CC) -c $(CF) -DSFX $(CFF)  -o $@ crc32.c
+
+ crypt_$O:      crypt.c $(UNZIP_H) zip.h crypt.h crc32.h ttyio.h
+        $(CC) -c $(CF) -DSFX -o $@ crypt.c
+-- 
+2.23.0
+
+
diff --git a/unzip.spec b/unzip.spec
index 86ebf2e1f5627cfe6f55b3689d66b5452376e986..5e193b48548d9572407652192fa14d0a4cbaad69 100644
--- a/unzip.spec
+++ b/unzip.spec
@@ -1,8 +1,8 @@
 Name:           unzip
 Version:        6.0
-Release:        45
+Release:        46
 Summary:        A utility for unpacking zip files
-License:        BSD
+License:        Info-ZIP,Public Domain
 URL:            http://www.info-zip.org/UnZip.html
 Source:         http://downloads.sourceforge.net/infozip/unzip60.tar.gz
 
@@ -36,6 +36,7 @@ Patch6002:      CVE-2019-13232.patch
 Patch6003:      CVE-2019-13232-fur1.patch
 Patch9000:      CVE-2019-13232-fur2.patch
 
+Patch12000:      unzip-6.0-crc-builtin.patch
 
 BuildRequires:  bzip2-devel
 
@@ -70,6 +71,9 @@ Package help includes man pages for unzip.
 %{_mandir}/man1/*
 
 %changelog
+* Tues May 12 2021 openEuler hanzhelii <18221254@bjtu.edu.cn> - 6.0-46
+- add unzip-6.0-crc-builtin.patch
+
 * Mon Mar 2 2020 openEuler Buildteam <buildteam@openeuler.org> - 6.0-45
 - delete garbled characters