Add a testuite for SM4 symmetric algorithm. Test vectors are based
on: https://tools.ietf.org/id/draft-ribose-cfrg-sm4-10.html

Signed-off-by: Tianjia Zhang <[email protected]>
---
 testsuite/.gitignore  |  1 +
 testsuite/Makefile.in |  2 +-
 testsuite/sm4-test.c  | 19 +++++++++++++++++++
 3 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100644 testsuite/sm4-test.c

diff --git a/testsuite/.gitignore b/testsuite/.gitignore
index ca41472e..07127d2b 100644
--- a/testsuite/.gitignore
+++ b/testsuite/.gitignore
@@ -98,6 +98,7 @@
 /sha512-256-test
 /sha512-test
 /sm3-test
+/sm4-test
 /streebog-test
 /twofish-test
 /umac-test
diff --git a/testsuite/Makefile.in b/testsuite/Makefile.in
index 6734d3e6..c2662826 100644
--- a/testsuite/Makefile.in
+++ b/testsuite/Makefile.in
@@ -24,7 +24,7 @@ TS_NETTLE_SOURCES = aes-test.c aes-keywrap-test.c 
arcfour-test.c arctwo-test.c \
                    sha384-test.c sha512-test.c sha512-224-test.c 
sha512-256-test.c \
                    sha3-permute-test.c sha3-224-test.c sha3-256-test.c \
                    sha3-384-test.c sha3-512-test.c \
-                   shake256-test.c streebog-test.c sm3-test.c \
+                   shake256-test.c streebog-test.c sm3-test.c sm4-test.c \
                    serpent-test.c twofish-test.c version-test.c \
                    knuth-lfib-test.c \
                    cbc-test.c cfb-test.c ctr-test.c gcm-test.c eax-test.c 
ccm-test.c \
diff --git a/testsuite/sm4-test.c b/testsuite/sm4-test.c
new file mode 100644
index 00000000..97d9d58a
--- /dev/null
+++ b/testsuite/sm4-test.c
@@ -0,0 +1,19 @@
+#include "testutils.h"
+#include "sm4.h"
+
+void
+test_main(void)
+{
+  /* test vectors from:
+   * https://tools.ietf.org/id/draft-ribose-cfrg-sm4-10.html
+   */
+  test_cipher(&nettle_sm4,
+             SHEX("0123456789ABCDEF FEDCBA9876543210"),
+             SHEX("0123456789ABCDEF FEDCBA9876543210"),
+             SHEX("681EDF34D206965E 86B3E94F536E4246"));
+
+  test_cipher(&nettle_sm4,
+             SHEX("FEDCBA9876543210 0123456789ABCDEF"),
+             SHEX("0001020304050607 08090A0B0C0D0E0F"),
+             SHEX("F766678F13F01ADE AC1B3EA955ADB594"));
+}
-- 
2.34.1

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