diff --git a/CMakeLists.txt b/CMakeLists.txt
index 23aeb321..cf1e4143 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -228,7 +228,7 @@ set(tools
 	tools/sm4_ctr.c
 	tools/sm4_gcm.c
 	tools/sm3.c
-	tools/sm3hmac.c
+	tools/sm3_hmac.c
 	tools/sm3_pbkdf2.c
 	tools/sm2keygen.c
 	tools/sm2sign.c
@@ -1026,7 +1026,7 @@ endif()
 #
 set(CPACK_PACKAGE_NAME "GmSSL")
 set(CPACK_PACKAGE_VENDOR "GmSSL develop team")
-set(CPACK_PACKAGE_VERSION "3.3.0-dev.1176")
+set(CPACK_PACKAGE_VERSION "3.3.0-dev.1177")
 set(CPACK_PACKAGE_DESCRIPTION_FILE ${PROJECT_SOURCE_DIR}/README.md)
 set(CPACK_NSIS_MODIFY_PATH ON)
 include(CPack)
diff --git a/cmake/tool_sm3.cmake b/cmake/tool_sm3.cmake
index 9876d1fb..10e59a3d 100644
--- a/cmake/tool_sm3.cmake
+++ b/cmake/tool_sm3.cmake
@@ -10,9 +10,9 @@ gmssl_run(sm3 -bin -in tool_sm3_input.txt -out tool_sm3.bin)
 gmssl_expect_file_hex(tool_sm3.bin "66c7f0f462eeedd9d1f2d46bdc10e4e24167c4875cf2f7a2297da02b8f4ba8e0")
 
 gmssl_expect_stdout("28d8a61be67d8bf7652c4eda7092b612f88be62184f55005c57ddf076e764199\n"
-	sm3hmac -key 0123456789abcdeffedcba9876543210 -in_str abc)
-gmssl_run(sm3hmac -key 0123456789abcdeffedcba9876543210 -bin -in tool_sm3_input.txt -out tool_sm3hmac.bin)
-gmssl_expect_file_hex(tool_sm3hmac.bin "28d8a61be67d8bf7652c4eda7092b612f88be62184f55005c57ddf076e764199")
+	sm3_hmac -key 0123456789abcdeffedcba9876543210 -in_str abc)
+gmssl_run(sm3_hmac -key 0123456789abcdeffedcba9876543210 -bin -in tool_sm3_input.txt -out tool_sm3_hmac.bin)
+gmssl_expect_file_hex(tool_sm3_hmac.bin "28d8a61be67d8bf7652c4eda7092b612f88be62184f55005c57ddf076e764199")
 
 gmssl_expect_stdout("df6b713d38d5a35df6861959e529ed22\n"
 	sm3_pbkdf2 -pass password -salt 0011223344556677 -iter 10000 -outlen 16 -hex)
diff --git a/include/gmssl/version.h b/include/gmssl/version.h
index 1a008df0..e038b166 100644
--- a/include/gmssl/version.h
+++ b/include/gmssl/version.h
@@ -18,7 +18,7 @@ extern "C" {
 
 
 #define GMSSL_VERSION_NUM	30300
-#define GMSSL_VERSION_STR	"GmSSL 3.3.0-dev.1176"
+#define GMSSL_VERSION_STR	"GmSSL 3.3.0-dev.1177"
 
 int gmssl_version_num(void);
 const char *gmssl_version_str(void);
diff --git a/tools/gmssl.c b/tools/gmssl.c
index 9d65dbd3..2f6acd1b 100644
--- a/tools/gmssl.c
+++ b/tools/gmssl.c
@@ -37,7 +37,7 @@ extern int sm2encrypt_main(int argc, char **argv);
 extern int sm2decrypt_main(int argc, char **argv);
 extern int sm2exch_main(int argc, char **argv);
 extern int sm3_main(int argc, char **argv);
-extern int sm3hmac_main(int argc, char **argv);
+extern int sm3_hmac_main(int argc, char **argv);
 extern int sm3_pbkdf2_main(int argc, char **argv);
 #ifdef ENABLE_SM4_ECB
 extern int sm4_ecb_main(int argc, char **argv);
@@ -158,7 +158,7 @@ static const char *options =
 	"  sm2decrypt        Decrypt with SM2 private key\n"
 	"  sm2exch           SM2 key exchange\n"
 	"  sm3               Generate SM3 hash\n"
-	"  sm3hmac           Generate SM3 HMAC tag\n"
+	"  sm3_hmac          Generate SM3 HMAC tag\n"
 	"  sm3_pbkdf2        Hash password into key using PBKDF2 algoritm\n"
 #ifdef ENABLE_SM4_ECB
 	"  sm4_ecb           Encrypt or decrypt with SM4 ECB\n"
@@ -348,8 +348,8 @@ int main(int argc, char **argv)
 			return sm2exch_main(argc, argv);
 		} else if (!strcmp(*argv, "sm3")) {
 			return sm3_main(argc, argv);
-		} else if (!strcmp(*argv, "sm3hmac")) {
-			return sm3hmac_main(argc, argv);
+		} else if (!strcmp(*argv, "sm3_hmac")) {
+			return sm3_hmac_main(argc, argv);
 		} else if (!strcmp(*argv, "sm3_pbkdf2")) {
 			return sm3_pbkdf2_main(argc, argv);
 #if ENABLE_SM4_ECB
diff --git a/tools/sm3hmac.c b/tools/sm3_hmac.c
similarity index 92%
rename from tools/sm3hmac.c
rename to tools/sm3_hmac.c
index 2efe5388..49152152 100644
--- a/tools/sm3hmac.c
+++ b/tools/sm3_hmac.c
@@ -34,23 +34,24 @@ static const char *help =
 "\n"
 "Examples\n"
 "\n"
-"    KEY_HEX=`gmssl rand -outlen 16 -hex`\n"
-"    gmssl sm3hmac -key $KEY_HEX -in_str abc\n"
+"    KEY=`gmssl rand -outlen 16 -hex`\n"
+"    gmssl sm3_hmac -key $KEY -in_str abc\n"
 "\n"
-"    gmssl sm3hmac -key $KEY_HEX -in_str abc -bin\n"
+"    gmssl sm3_hmac -key $KEY -in_str abc -bin\n"
 "\n"
-"    gmssl sm3hmac -key $KEY_HEX -in /path/to/file\n"
+"    gmssl sm3_hmac -key $KEY -in /path/to/file\n"
 "\n"
 "    When reading from stdin, make sure the trailing newline character is removed\n"
 "\n"
 "    Linux/Mac:\n"
-"    echo -n abc | gmssl sm3hmac -key $KEY_HEX\n"
+"    echo -n abc | gmssl sm3_hmac -key $KEY\n"
 "\n"
 "    Windows:\n"
-"    echo |set/p=\"abc\" | gmssl sm3hmac -key 11223344556677881122334455667788\n"
+"    for /f %i in ('gmssl rand -outlen 16 -hex') do set KEY=%i\n"
+"    echo |set/p=\"abc\" | gmssl sm3_hmac -key %KEY%\n"
 "\n";
 
-int sm3hmac_main(int argc, char **argv)
+int sm3_hmac_main(int argc, char **argv)
 {
 	int ret = 1;
 	char *prog = argv[0];